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User’s Guide
FMA-PC1600Portable Calibration Unit
Servicing North America:U.S.A.: Omega Engineering, Inc., One Omega Drive, P.O. Box 4047 Stamford, CT 06907-0047 USA
Toll-Free: 1-800-826-6342 (USA & Canada only) Customer Service: 1-800-622-2378 (USA & Canada only) Engineering Service: 1-800-872-9436 (USA & Canada only) Tel: (203) 359-1660 Fax: (203) 359-7700 e-mail: [email protected]
For Other Locations Visit omega.com/worldwide
omega.com [email protected]
The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves the right to alter specifications without notice.
The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves the right to alter specifications without notice.
Servicing North America:U.S.A. Omega Engineering, Inc. Headquarters: Toll-Free: 1-800-826-6342 (USA & Canada only) Customer Service: 1-800-622-2378 (USA & Canada only) Engineering Service: 1-800-872-9436 (USA & Canada only) Tel: (203) 359-1660 Fax: (203) 359-7700 e-mail: [email protected]
For Other Locations Visit omega.com/worldwide
omega.com [email protected]
3
Thank you for purchasing an Omega FMA-PC1600 Portable Calibration Unit.
Please take the time to find and read the information contained in this manual. This will help to ensure that you get the best possible service from your instrument.
The Omega FMA-PC1600 Portable Calibration Unit is designed to accurately measure gas flow rates of common gases with three separate flow meters with ranges determined by your needs.
The laminar flow, differential pressure flow meters housed in the FMA-PC1600 are accurate and exceptionally repeatable devices, making the FMA-PC1600 an excellent portable secondary standard for field flow meter calibration.
The FMA-PC1600’s three separate displays allow you to monitor Mass Flow Rate, Absolute Pressure, Volumetric Flow Rate, and Temperature simultaneously. The FMA-PC1600 is also equipped with an RS232 output port that can be connected to a computer or other data-logging device.
A USB “B” connector allows direct connection to a computer. This USB conneection automatically creates a virtual Com Port, which then replicates the function of a standard serial port.
The FMA-PC1600 is a USB 2.0 full speed device.
If a Windows® computer is connected to the internet it should be able to find and automatically install the required drivers. For Linux, Mac OS 10.3, or Windows® drivers visit: http://www.ftdichip.com/Drivers/VCP.htm
The Omega FMA-PC1600 is designed for CLEAN, DRY, NON-CORROSIVE gases.
Please contact Omega if you have any questions regarding the use or operation of this device.
4
TABLE OF CONTENTS PageCONNECTING THE FMA-PC1600 5POWER 7PRESSURE 7DISPLAYS AND MENUS 8 MAIN MODE 8 Gas Absolute Pressure 9 Gas Temperature 9 Tare 9 Volumetric Flow Rate 10 Mass Flow Rate 10 Flashing Error Message 10 SELECT MENU 11 GAS SELECT 12 Composer 13 COMMUNICATION SELECT 15 Unit ID 15 Baud 15 MISCELLANEOUS 16 MISC1 16 Zero Band 16 Pressure Averaging 16 Flow Averaging 16 LCD Contrast 16 MISC2 17 Standard Temperature and Pressure 17 DIAG TEST 18 Rotate Display 18 DEVICE UNITS 18 MANUFACTURER DATA 19RS232 Output and Input 20 Configuring HyperTerminal® 22 Tareing via RS232 22 Changing from Streaming to Polling Mode 22 Gas Select 23 Creating and Deleting Gas Mixtures using RS232 24 Collecting Data 25 Data Format 25 Sending a Simple Script File to HyperTerminal® 26Operating Principle 27Gas Data Tables 27Gas Lists with Viscosities, Densities and Compressibilities 28Supported Units List 36Troubleshooting 38Maintenance and Recalibration 40Option: Totalizing Mode 41Accessories 42FMA-PC1600 Meter Technical Specifications 43
5
CONNECTING THE FMA-PC1600The inlet and outlet connections to the FMA-PC1600 are located below the displays for their respective flow ranges. Inlet connections are located on the left and the outlet connections are located on the right (see page 6) The connections are either 1/8”, 1/4”, 3/8”, 1/2” or 6mm, 10mm, 12mm push-connect style tubing fittings with each fitting corresponding to a single flow range. Use appropriately sized plastic tubing to connect the flow source to the corresponding inlet fitting. If necessary, connect the corresponding outlet fitting to the original source destination with proper tubing.
CAUTION: Push-connect fittings are easy to use, as no special tools are required to make the joints. However, special attention must be paid when cutting the tube — as the O-ring inside of the fittings can easily be damaged.
It is essential to use the correct cutter such as a pipe slice for copper pipe or dedicated plastic pipe cutters for plastic tube — Do not use a saw because any burrs left on the tube can damage the O-ring and cause the joint to leak!
Cut your tube to the required length using the dedicated plastic pipe cutters, making sure you have a straight cut with no burrs. Then push the tubing carefully into the fitting on the bulkhead panel. Softer polyurethane tubing will work best, as opposed to some of the harder plastic tubings available. It decreases the chances of damaging the O-rings.
If the outlet fittings are not connected to your piping, the gas being measured will vent to atmosphere at the outlet fittings!
Use protective eyewear!
Never Vent Flammable Gases To Atmosphere!
6
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7
POWERThe FMA-PC1600 is designed to operate on eitherfour AA Alkaline batteries or via a 9-30 Vdc power supply (minimum 150 mA @ 24Vdc). The batteries will operate the FMA-PC1600 for about 8 hours under normal usage.If the batteries lose significant power, the low battery light will come on and the batteries should be replaced or alternate power should be applied. When the replace battery light is on the accuracy of the meters’ readings cannot be guaranteed.
PRESSUREMaximum operating line pressure for FMA-PC1600s with FMA-1600A units is 145 psig (1 MPa).If the line pressure is higher than 145 psig (1 MPa), use a pressure regulator upstream from the flow meter to reduce the pressure to 145 psig (1 MPa) or less.Maximum operating line pressure for FMA-PC1600s with FMA-LP1600A units is 50 psig.
Exceeding the maximum specified line pressure may cause permanent damage to the solid-state differential pressure sensor.
Do Not subject an FMA-1600A Differential Pressure sensor to upstream-downstream pressure differentials exceeding 75 PSID.Do Not subject a FMA-LP1600A Differential Pressure sensor to upstream-downstream pressure differentials exceeding 15 PSID.
While high static pressure will typically not damage the dp sensor, sudden pressure “spikes” can result in complete failure of the sensor.
A common cause of this problem is instantaneous application of high-pressure gas as from a snap acting solenoid valve either upstream or downstream of the meter. If you suspect that your pressure sensor is
damaged please discontinue use of the meter and contact Omega.
8
PEAK+0.0
MENU/MAIN
SCCM+0.0
TOTAL/ TIMER
Totalizer (option only)
BACK RESET
#C+21.50
+0.000 CCM
MENU/TOTAL
TARE V PSIA+13.60
+0.000 SCCM
SCCMAir+0.00
The Main display shows pressure, temperature, volumetric flow and mass flow.Pressing the button adjacent to a parameter will make that parameter the primary display unit.By hitting the MENU button at the bottom right of the screen you will enter the Select Menu display.
If your meter was ordered with the Totalizer option (page 41), pushing the TOTAL button once will bring up the Totalizing Mode display. Pushing MENU will bring up the Select Menu display.
DISPLAYS AND MENUSThe device screen defaults to Main display as soon as power is applied to the meter.
Select MenuFrom Select Menu you can change the selected gas, interact with your RS232 settings or read manufacturer’s data. Push MAIN to return to the Main display.
RS232 COMM
MFGDATA
MAIN
MISC
GASSELECT
Select Menu
Main
00123.45Scm3
2:05 h:m:s
9
MAIN This mode defaults on power up, with mass flow as the primary displayed parameter. The following parameters are displayed in the Main mode.
Gas Absolute Pressure: This sensor references hard vacuum and reads incoming pressure both above and below local atmospheric pressure. This parameter is moved to the primary display by pushing the button above PSIA. The engineering unit associated with absolute pressure is pounds per square
inch absolute (psia). This can be converted to gage pressure (psig) by subtracting local atmospheric pressure from the absolute pressure reading:
PSIG = PSIA – (Local Atmospheric Pressure)
Gas Temperature: FMA-1600A flow meters measure the incoming temperature of the gas flow. The temperature is displayed in degrees Celsius (°C). This parameter is moved to the primary display by pushing the button above °C. Pushing the button again allows you to select 0C (Celsius), K (Kelvin), 0F (Fahrenheit) or 0R (Rankine) for the temperature scale. To select a temperature scale, use the UP and DOWN buttons to position the arrow in front of the desired scale. Press SET to record your selection and return
to the MAIN display. The selected temperature scale will be displayed on the screen.
Tare: Pushing the TARE V button tares the flow meter and provides it with a reference point for zero flow. This is an important step in obtaining accurate measurements. It is best to zero the flow meter each time it is powered up. If the flow reading varies significantly from zero after an initial tare, give the unit a minute or so to warm up and re-zero it.If possible, zero the unit near the expected operating pressure by positively blocking the flow downstream of the flow meter prior to pushing the TARE button.
Zeroing the unit while there is any flow will directly affect the accuracy by providing a false zero point. If in doubt about whether a zero flow
condition exists, remove the unit from the line and positively block both ports before pressing the TARE button. If the unit reads a significant negative value
#C+21.50
+0.000CCM
MENU/TOTAL
TARE VPSIA+13.60
+0.000SCCM
DOWN
CANCEL SET
MODE
>#C K #F #R
UP
SCCMAir+0.00
Mass Flow
10
when removed from the line and blocked, it was given a false zero. It is better to zero the unit at atmospheric pressure and a confirmed no flow condition than to give it a false zero under line pressure.
Volumetric Flow Rate: This parameter is located in the lower left of the display. It is moved to the primary display by pushing the button below CCM in this example. Your display may show a different unit of measure.Mass Flow Rate: The mass flow rate is the volumetric flow rate corrected to a standard temperature and pressure (typically 14.696 psia and 25 °C). This parameter is located in the lower middle of the display. It can be moved to the primary display by pushing the button below SCCM in this example. Your display may show a different unit of measure preceded by the letter S.
To get an accurate volumetric or mass flow rate, the gas being measured must be selected. See Gas Select, page 12.
MENU: Pressing MENU switches the screen to the Select Menu display.
Flashing Error Message: An error message (MOV = mass overrange, VOV = volumetric overrange, POV = pressure overrange, TOV = temperature overrange) flashes when a measured parameter exceeds the range of the sensor. When any item flashes, neither the flashing
parameter nor the mass flow measurement is accurate. Reducing the value of the flashing parameter to within specified limits will return the unit to normal operation and accuracy.
If the unit does not return to normal operation contact Omega.
11
RS232 COMM
MFGDATA
MAIN
MISC
GASSELECT
SELECT MENUFrom Select Menu you can change the selected gas, interact with your RS232 settings or read manufacturer’s data.Press the button next to the desired operation to bring that function to the screen.
MiscellaneousCommunications Select
Main
Manufacturer Data
An explanation for each screen can be found on the following pages.
Gas Select
MODELINFO
BACK MAIN
MISC2
BACKDEVICEUNITS MAIN
MISC1
BACK MAIN
UNIT IDA
BAUD19200
Select Menu
O M E G A
Ph 800-826-6342
Fax 203-359-7700
DOWN
CANCEL SELECT
PAGE
>Recent Standard Factory Custom Composer User Mixes Bioreactor Breathing Chromatography Fuel
UP#C
+21.50
+0.000CCM MAIN
TARE V
SCCMAir
PSIA+13.60
+0.000SCCM
+ 0.00
12
GAS SELECTGas Select allows you to set your device to up to 150 standard gases and mixes. You can also use Composer to program and store up to 20 additional gas mixes.
Gas Select is accessed by pressing the button below GAS SELECT on the Select Menu display.
To select a gas, use the UP and DOWN buttons to position the arrow in front of the desired gas category. » Recent: Eight most recent selections » Standard: Gases and mixes standard
on earlier Omega instruments (page 32) » Factory Custom: Present only if customer
requested gases were added at the factory » Composer User Mixes: Gas mixes
programmed by the user (page 19) » Bioreactor (page 32) » Breathing (page 33) » Chromatography (page 35) » Fuel (page 34) » Laser (page 34) » O2 Concentrator (page 35) » Pure Corrosive* (page 29) » Pure Non-Corrosive (page 28) » Refrigerant* (page 30) » Stack (page 35) » Welding (page 31)
Press PAGE to view a new page in the gas category list.
Press SELECT to view the gases in the selected category. Align the arrow with the desired gas. Press SET to record your selection and return to the MAIN display. The selected gas will be displayed on the screen.
* Pure Corrosive and Refrigerant gases are only available on FMA-1600A-LSS instruments that are compatible with these gases.
Note: Gas Select may not be available on units ordered with a custom gas or blend.
See pages 28 -35 for a full list of gases in each category.
DOWN
CANCEL SET
PAGE
>Recent Standard Factory Custom Composer User Mixes Bioreactor Breathing Chromatography Fuel
UP
DOWN
CANCEL SET
PAGE
> Fuel Laser O2 Concentrator Pure Corrosive Pure Non-Corrosive Refrigerant Stack Welding
UP
13
COMPOSERComposer allows you to program and save up to 20 custom gas mixes containing 2 to 5 component gases found in the gas lists (pages 37-34). The minimum resolution is 0.01%.
Composer is accessed by selecting Composer User Mixes on the GAS SELECT display.
Press SET when the arrow is aligned with Add Mix.
Name the mix by pressing the UP and DOWN buttons for letters, numerals and symbols.
CHANGE CASE – Toggles the letter case. Letters remain in selected case until CHANGE CASE is pushed again.
Press SET to save the name.
After naming the mix, press ADD GAS and select the gas category and the component gas.
Select the digit with arrow and adjust the % with the UP and DOWN buttons. Press set to save. Add up to 4 more gases as needed. The total must equal 100% or an error message will appear.
GAS OPTNS allows you to adjust the percentage of the constituents or delete a gas from the mix. Gas mixes cannot be adjusted after they have been saved.
DOWN
CANCEL SET
>Add Mix: 20 FreeUP
DOWN
BACK/CANCEL
CHANGE CASE SET
NEXTLETTER
Composer Mix name:
MyGas ------˄
UP
ADD GAS
BACK/CANCEL
CHANGE CASE SET
GAS OPTNS
Composer Mix: MyGAS
0.00% of Total
EDIT NAME
14
Once the mix has been saved, you may press CREATE SIMILAR to compose an additional mix based on the mix you have just saved. This CREATE SIMILAR option is not available after leaving this screen.
Press CREATE NEW to add a completely new mix.
Press SELECT MIXTURE to bring the custom mix onto the MAIN display.
MAINSELECT MIXTURE
CREATE SIMILAR
COMPOSER USER MIXMyGas
HAS BEEN SAVED
CREATE NEW
DOWN
BACK/CANCEL CLEAR SET
SELECT DIGIT
Percent of Air:
50.00 ˄
UP DOWN
BACK/CANCEL CLEAR SET
SELECT DIGIT
Percent of Ar Argon:
30.00 ˄
UP
DOWN
BACK/CANCEL CLEAR SET
SELECT DIGIT
Percent of He Helium:
20.00 ˄
UP ADD GAS
CANCEL SAVE
GAS OPTNS
Composer Mix: MyGAS 50% Air 30% AR Argon 20% He Helium 100.00% Total
EDIT NAME
15
COMMUNICATION SELECTAccess Communication Select by pressing the button above RS232 COMM on the Select Menu display. Unit ID – Valid unit identifiers are the letters A-Z and @. The identifier allows you to assign a unique address to each device so that multiple units can be connected to a single RS232 computer port. Press UNIT ID. Use the UP and DOWN buttons to change the Unit ID. Press SET to record the ID. Press Reset to return to the previously recorded Unit ID.Any Unit ID change will take effect when Communication Select is exited.If the symbol @ is selected as the Unit ID, the device will enter streaming mode when Communication Select is exited. See RS232 Communications (page 19) for information about the streaming mode.Baud – Both this instrument and your computer must send/receive data at the same baud rate. The default baud rate for this device is 19200 baud. Press the Select button until the arrow is in front of Baud. Use the UP and DOWN buttons to select the baud rate that matches your computer. The choices are 38400, 19200, 9600, or 2400 baud. Any baud rate change will not take effect until power to the unit is cycled.
UP
BACK RESET A SET
UNIT IDC
DOWN
DOWN
BACK SET
BAUD UP
19200
BACK MAIN
UNIT IDA
BAUD19200
C
16
MISCELLANEOUS Miscellaneous is accessed by pressing the MISC button on the Select Menu display. Next select either MISC1 or MISC2.
MISC1 will display as shown at left.ZERO BAND refers to Display Zero Deadband. Zero deadband is a value below which the display jumps to zero. This deadband is often desired to prevent electrical noise from showing up on the display as minor flows or pressures that do not exist. Display Zero Deadband does not affect the analog or digital signal outputs.ZERO BAND can be adjusted between 0 and 6.3% of the sensor’s Full Scale (FS). Press ZERO BAND. Then use SELECT to choose the digit with the arrow and the UP and DOWN buttons to change the value. Press SET to record your value. Press CLEAR to return to zero.Pressure Averaging and Flow Averaging may be useful to make it easier to read and interpret rapidly fluctuating pressures and flows. Pressure and flow averaging can be adjusted between 1 (no averaging) and 256 (maximum averaging). These are geometric running averages where the number between 1 and 256 can be considered roughly equivalent to the response time constant in milliseconds.
This can be effective at “smoothing” high frequency process oscillations such as those caused by diaphragm pumps. Press PRESS AVG. Then use SELECT to choose the digit with the arrow and the UP and DOWN buttons to change the value. Press SET to record your value. Press CLEAR to return to zero.
Press FLOW AVG. Then use SELECT to choose the digit with the arrow and the UP and DOWN buttons to change the value. Press SET to record your value. Press CLEAR to return to zero.Setting a higher number will equal a smoother display. LCD CONTRAST: The display contrast can be adjusted between 0 and 31, with zero being the lightest and 31 being the darkest. Use the UP and DOWN buttons to adjust the contrast. Press SET when you are satisfied. Press CANCEL to return to the MISC display.
PRESSAVG
BACK
LCD
CONTRAST MAIN
ZEROBAND
FLOWAVG
DOWN
CANCEL CLEAR SET
UP SELECT
0.0
>
DOWN
CANCEL RESET SET
UP
11
17
DIAGTEST
BACK MAIN
STP/NTP
ROTATE DISP
STPPRESS
MAIN
STPTEMP
STP TEMP Display
CLEAR
DOWN
BACK/CANCEL
Temperature: #C
SET
UP SELECTDIGIT
25.0000
MISC2 will display as shown at left. STP/NPT refers to the functions that allow your selection of standard temperature and pressure conditions or normal temperature and pressure conditions. This feature is generally useful for comparison purposes to other devices or systems using different STP parameters. The STP menu is comprised of the STP TEMP and STP PRESS screens. STP TEMP allows you to select from 0C, 0F, K or 0Ra. The arrow position will automatically default to the currently stored value. The NTP menu is comprised of the NTP TEMP and NTP PRESS screens. Once a selection has been made and recorded using the SET button, a change acknowledgement message will be displayed on screen. Selecting MAIN will revert screen to the Main display. If the SET selection is already the currently stored value, a message indicating that fact will appear. STP PRESS enables you to select from a menu pressure settings. Use the UP/DOWN or PAGE buttons to view the settings.The arrow position will automatically default to the currently stored value.
Once a selection has been made and recorded using the SET button, a change acknowledgement message will be displayed on screen. Pressing SET again will revert screen to the Main display. If the SET selection is already the currently stored value, a message indicating that fact will appear.
STP PRESS Display
101355.0
DOWN
BACK/CANCEL SET
UP SELECTDIGIT
Pressure: PaA
CLEAR
18
DIAG TEST: This diagnostic screen displays the current register values configured by the factory, which is useful for noting factory settings prior to making any changes. It is also helpful for troubleshooting with Omega customer service personnel.Select the DIAG TEST button from the MISC2 screen to view a list of select register values. Pressing the SCROLL button will cycle the display through the register screens. An example screen is shown at left.
Press ROTATE DISP and SET to Inverted 180° if your device is inverted. The display and buttons will rotate together.
BACK MAIN
SCROLLR8: AP Sig 7871R9: Temp Sig 39071R10: DP Side 9986R11: DP Brdg 36673R13: AP Brdg 36673R16: Meter Func 199R18: Power Up 32768
DEVICE UNITSPress DEVICE UNITS to access menus of units of measure for each parameter (and totalizer if so equipped).Scroll to the desired unit and press select.Once selected, you will see the message shown below. Verify that all connected devices expect the change.See pages 36 and 37 for a full list of available units.
DOWN
DONE SELECT
Mass FlowVolumetric FlowPressureTemperatureMass TotalizerTotalizer Time
UP
DOWN
CANCEL SET
PAGE
SCCMScm3/hSm3/hSm3/dSin3/mSCFHNmL/s
UPPRESSING SET WILL
AFFECT DISPLAYAND SERIAL VALUES
VERIFY CONNECTED SERIAL DEVICES
EXPECT THE CHANGE
SETCANCEL
19
MANUFACTURER DATAManufacturer Data is accessed by pressing the MFG DATA button on the Select Menu display.
The initial display shows the name and telephone number of the manufacturer.
Press MODEL INFO to show important information about your flow device including the model number, serial number, and date of manufacture.
Press BACK to return to the MFG DATA display.
Push MAIN to return to the Main display.
MODELINFO
BACK MAIN
O M E G A
Ph 800-826-6342
Fax 203-359-7700
BACK MAIN
MODEL: FMA-1600A-100SCCM-DSERIAL NO: 100903DATE MFG: 10/7/2014DATE CAL: 10/9/2014CAL BY: DLSW REV: 5v00.G
20
RS232 Output and Input
Connect the male RS232 DB9 port of the FMA-PC1600 to the serial port of your computer or data logger. This will normally require a female/female 9-pin D-sub cable (included).
One of the most common ways to access the RS232 output from your FMA-PC1600 is through a simple terminal program. Open your Hyperterminal RS232 terminal program (installed under the “Accessories” menu on all Microsoft Windows operating systems). Select “Properties” from the file menu. Click on the “Configure” button under the “Connect To” tab.
Be sure the program is set for: 19200 baud and an 8-N-1-None (8 Data Bits, No Parity, 1 Stop Bit, and no Flow Control) protocol. Under the “Settings” tab, make sure the Terminal Emulation is set to ANSI.
Click on the “ASCII Setup” button and be sure the “Send Line Ends with Line Feeds” Box is not checked, and that the “Append Line Feeds to Incoming Lines” box is checked.
Those settings not mentioned here are normally okay in the default position. Type L, M or H to read data for the desired range.
When the queried the window will fill with 6 columns of data representing the range (L=Low, M=Medium, H=High), absolute pressure, temperature, volumetric flow, mass flow, and selected gas respectively. Pressure units are psia, temperature units are Degrees C, volumetric flow units are Liters Per Minute, and mass flow units are Standard Liters Per Minute. The Low range is 0-2 slpm, the Medium range is 0-50 slpm, and the High range is 0-1000 slpm.
L +014.70 +025.00 +02.004 +02.004 AIRL +014.70 +025.00 +02.004 +02.004 AIRL +014.70 +025.00 +02.004 +02.004 AIRL +014.70 +025.00 +02.004 +02.004 AIRL +014.70 +025.00 +02.004 +02.004 AIRL +014.70 +025.00 +02.004 +02.004 AIR
FMA-PC1600 Mass Flow Meter Data Format(Low Range)
Note: On units with the totalizer function the sixth column will be the totalizer value, with gas select moving to a seventh column.
21
RS232 Output and InputConfiguring HyperTerminal®:
1. Open your HyperTerminal® RS232 terminal program (installed under the “Accessories” menu on all Microsoft Windows® operating systems).
2. Select “Properties” from the file menu.3. Click on the “Configure” button under the “Connect To” tab. Be sure the
program is set for: 19,200 baud (or matches the baud rate selected in the RS232 communications menu on the meter) and an 8-N-1-None (8 Data Bits, No Parity, 1 Stop Bit, and no Flow Control) protocol.
4. Under the “Settings” tab, make sure the Terminal Emulation is set to ANSI or Auto Detect.
5. Click on the “ASCII Setup” button and be sure the “Send Line Ends with Line Feeds” box is not checked and the “Echo Typed Characters Locally” box and the “Append Line Feeds to Incoming Lines” boxes are checked. Those settings not mentioned here are normally okay in the default position.
6. Save the settings, close HyperTerminal® and reopen it.
Streaming Mode
In the default Polling Mode, the screen should be blank except the blinking cursor. In order to get the data streaming to the screen, hit the “Enter” key several times to clear any extraneous information. Type “*@=@” followed by “Enter” (or using the RS232 communication select menu, select @ as identifier and exit the screen). If data still does not appear, check all the connections and COM port assignments.
Streaming Mode – Advanced
The streaming data rate is controlled by register 91. The recommended default rate of data provision is once every 50 milliseconds and this is suitable for most purposes.
If a slower or faster streaming data rate is desired, register 91 can be changed to a value from 1 millisecond to 65535 milliseconds, or slightly over once every minute.
Below approximately 40 milliseconds, data provision will be dependent upon how many parameters are selected. Fewer data parameters can be streamed more quickly than more. It is left to the user to balance streaming speed with number of parameters streamed.
To read register 91, type “*r91” followed by “Enter”.
To modify register 91, type “*w91=X”, where X is a positive integer from 1 to 65535, followed by “Enter”.
To return to the recommended factory default streaming speed, type “*w91= 50”.
22
Tareing via RS232:
Tare –Tareing (or zeroing) the flow meter provides it with a reference point for zero flow. This is a simple but important step in obtaining accurate measurements. It is good practice to “zero” the flow meter each time it is powered up. A unit may be Tared by following the instructions on page 10 or it may be Tared via RS232 input.
To send a Tare command via RS232, enter the following strings:
In Polling Mode: Address$$V<Enter> (e.g. B$$V<Enter>)
Changing From Streaming to Polling Mode:
When the meter is in the Streaming Mode, the screen is updated approximately 10-60 times per second (depending on the amount of data on each line) so that the user sees the data essentially in real time. It is sometimes desirable, and necessary when using more than one unit on a single RS232 line, to be able to poll the unit.
In Polling Mode the unit measures the flow normally, but only sends a line of data when it is “polled”. Each unit can be given its own unique identifier or address. Unless otherwise specified each unit is shipped with a default address of capital A. Other valid addresses are B thru Z.
Once you have established communication with the unit and have a stream of information filling your screen:
1. Type *@=A followed by “Enter” (or using the RS232 communication select menu, select A as identifier and exit the screen) to stop the streaming mode of information. Note that the flow of information will not stop while you are typing and you will not be able to read what you have typed. Also, the unit does not accept a backspace or delete in the line so it must be typed correctly. If in doubt, simply hit enter and start again. If the unit does not get exactly what it is expecting, it will ignore it. If the line has been typed correctly, the data will stop.
2. You may now poll the unit by typing A followed by “Enter”. This does an instantaneous poll of unit A and returns the values once. You may type A “Enter” as many times as you like. Alternately you could resume streaming mode by typing *@=@ followed by “Enter”. Repeat step 1 to remove the unit from the streaming mode.
3. To assign the unit a new address, type *@=New Address, e.g. *@=B. Care should be taken not to assign an address to a unit if more than one unit is on the RS232 line as all of the addresses will be reassigned. Instead, each should be individually attached to the RS232 line, given an address, and taken off. After each unit has been given a unique address, they can all be put back on the same line and polled individually.
23
Gas Select – The selected gas can be changed via RS232 input. To change the selected gas, enter the following commands:
In Polling Mode: Address$$#<Enter> (e.g. B$$#<Enter>)
Where # is the number of the gas selected from the table below. Note that this also corresponds to the gas select menu on the flow meter screen (the Standard gas category is shown in the example below):
# GAS0 Air Air1 Argon Ar2 Methane CH43 Carbon Monoxide CO4 Carbon Dioxide CO25 Ethane C2H66 Hydrogen H27 Helium He8 Nitrogen N29 Nitrous Oxide N2O
10 Neon Ne11 Oxygen O212 Propane C3H813 normal-Butane n-C4H1014 Acetylene C2H215 Ethylene C2H416 iso-Butane i-C2H1017 Krypton Kr18 Xenon Xe19 Sulfur Hexafluoride SF620 75% Argon / 25% CO2 C-2521 90% Argon / 10% CO2 C-1022 92% Argon / 8% CO2 C-823 98% Argon / 2% CO2 C-224 75% CO2 / 25% Argon C-7525 75% Argon / 25% Helium HE-7526 75% Helium / 25% Argon HE-25
27 90% Helium / 7.5% Argon / 2.5% CO2(Praxair - Helistar® A1025) A1025
28 90% Argon / 8% CO2 / 2% Oxygen(Praxair - Stargon® CS) Star29
29 95% Argon / 5% Methane P-5
For example, to select Propane, enter: $$12<Enter>
24
Creating and Deleting Gas Mixtures with Composer using RS232Note: All commands must be prefixed with the unit ID if the unit is not in streaming mode.You may create and store up to 20 gas mixtures containing up to five constituent gases each. Create a Gas MixtureTo create a gas mixture, enter a single-line command according to the following formula: [Unit ID]GM [Gas Name] [Gas Mix Number] [Percent 1] [Gas Number 1] [Percent 2] [Gas Number 2] …
Gas Name: Name your mixture using a maximum of 6 characters. Gas Mix Number: Composer user mixes have gas numbers between 236 and 255. You can assign any number in this range to your new mixture. If another mixture with the same number exists, it will be overwritten, even if that gas is currently selected on the unit. If you enter a 0 here, the new mix will be assigned the next available number between 236 and 255. Percent 1: The percentage of the first constituent gas. The percentage of each constituent must be between 0.01 and 99.99. Values entered beyond two decimal points will be rounded to the nearest 0.01%.Gas Number 1: The gas number of the first constituent gas.Percent 2: The percentage of the first constituent gas. Values entered beyond two decimal points will be rounded to the nearest 0.01%.Gas Number 2: The gas number of the first constituent gas.Additional Gases: (Optional) The above pattern of [Percent] + [Gas Number] may be repeated for additional constituent gases up to a total of 5 constituents. The sum of all percentages must be 100.00.
On success, the unit ID (if set) is returned followed by a space. The number of the gas mixture is then returned, followed by the percentages and names of each constituent in the mix. If the gas is not successfully mixed, a "?" is returned.Delete a Gas MixtureTo delete a gas mixture, enter:
[Unit ID]GD [Gas Number]: The number of the Composer user mixture you wish to delete from the unit
Only Composer user mixtures can be deleted with this command.On success, the unit ID (if set) is returned followed by a space and the number of the gas deleted. If the gas is not successfully deleted, a "?" is returned.
25
Data Format:The data stream on the screen represents the flow parameters of the main mode in the units shown on the display. For mass flow meters, there are five columns of data representing pressure, temperature, volumetric flow, mass flow and the selected gas. The first column is absolute pressure (normally in psia), the second column is temperature (normally in °C), the third column is volumetric flow rate (in the units specified at time of order and shown on the display), and the fourth column is mass flow (also in the units specified at time of order and shown on the display). For instance, if the meter was ordered in units of scfm, the display on the meter would read 2.004 scfm and the last two columns of the output below would represent volumetric flow and mass flow in cfm and scfm respectively.
+014.70 +025.00 +02.004 +02.004 Air+014.70 +025.00 +02.004 +02.004 Air+014.70 +025.00 +02.004 +02.004 Air+014.70 +025.00 +02.004 +02.004 AirPressure Temp Vol. Flow Mass Flow Gas
FMA-1600A Mass Flow Meter Data FormatNote: On units with the totalizer function the fifth column will be the totalizer value, with gas select moving to a sixth column.
Collecting Data:The RS232 output updates to the screen many times per second. Very short-term events can be captured simply by disconnecting (there are two telephone symbol icons at the top of the HyperTerminal® screen for disconnecting and connecting) immediately after the event in question. The scroll bar can be driven up to the event and all of the data associated with the event can be selected, copied, and pasted into Microsoft® Excel® or other spreadsheet program as described below.For longer term data, it is useful to capture the data in a text file. With the desired data streaming to the screen, select “Capture Text” from the Transfer Menu. Type in the path and file name you wish to use. Push the start button. When the data collection period is complete, simply select “Capture Text” from the Transfer Menu and select “Stop” from the sub-menu that appears.Data that is selected and copied, either directly from HyperTerminal® or from a text file can be pasted directly into Excel®. When the data is pasted it will all be in the selected column. Select “Text to Columns...” under the Data menu in Excel® and a Text to Columns Wizard (dialog box) will appear. Make sure that “Fixed Width” is selected under Original Data Type in the first dialog box and click “Next”. In the second dialog box, set the column widths as desired, but the default is usually acceptable. Click on “Next” again. In the third dialog box, make sure the column data format is set to “General”, and click “Finish”. This separates the data into columns for manipulation and removes symbols such as the plus signs from the numbers. Once the data is in this format, it can be graphed or manipulated as desired. For extended term data capture see page 26
26
Sending a Simple Script File to HyperTerminal®It is sometimes desirable to capture data for an extended period of time. Standard streaming mode information is useful for short term events, however, when capturing data for an extended period of time, the amount of data and thus the file size can become too large very quickly. Without any special programming skills, you can use HyperTerminal® and a text editing program such as Microsoft® Word® to capture text at defined intervals.1. Open your text editing program, MS Word for example.2. Set the cap lock on so that you are typing in capital letters.3. Beginning at the top of the page, type A<Enter> repeatedly. If you’re using MS Word, you can tell how many lines you have by the line count at the bottom of the screen. The number of lines will correspond to the total number of times the flow device will be polled, and thus the total number of lines of data it will produce.For example: A
A A A A Awill get a total of six lines of data from the flow meter, but you can enter as many as you like.
The time between each line will be set in HyperTerminal.4. When you have as many lines as you wish, go to the File menu and select save. In the save dialog box, enter a path and file name as desired and in the “Save as Type” box, select the plain text (.txt) option. It is important that it be saved as a generic text file for HyperTerminal to work with it.5. Click Save.6. A file conversion box will appear. In the “End Lines With” drop down box, select CR Only. Everything else can be left as default.7. Click O.K.8. You have now created a “script” file to send to HyperTerminal. Close the file and exit the text editing program.9. Open HyperTerminal and establish communication with your flow device as outlined in the manual.10. Set the flow device to Polling Mode as described in the manual. Each time you type A<Enter>, the meter should return one line of data to the screen.11. Go to the File menu in HyperTerminal and select “Properties”.12. Select the “Settings” tab.13. Click on the “ASCII Setup” button.
27
14. The “Line Delay” box is defaulted to 0 milliseconds. This is where you will tell the program how often to read a line from the script file you’ve created. 1000 milliseconds is one second, so if you want a line of data every 30 seconds, you would enter 30000 into the box. If you want a line every 5 minutes, you would enter 300000 into the box.15. When you have entered the value you want, click on OK and OK in the Properties dialog box.16. Go the Transfer menu and select “Send Text File…” (NOT Send File…).17. Browse and select the text “script” file you created.18. Click Open.19. The program will begin “executing” your script file, reading one line at a time with the line delay you specified and the flow device will respond by sending one line of data for each poll it receives, when it receives it.You can also capture the data to another file as described in the manual under “Collecting Data”. You will be simultaneously sending it a script file and capturing the output to a separate file for analysis.
Operating Principle
All FMA-1600A Gas Flow Meters and FMA-2600A Gas Flow Controllers are based on the accurate measurement of volumetric flow. The volumetric flow rate is determined by creating a pressure drop across a unique internal restriction, known as a Laminar Flow Element (LFE), and measuring differential pressure across it. The restriction is designed so that the gas molecules are forced to move in parallel paths along the entire length of the passage; hence laminar (streamline) flow is established for the entire range of operation of the device. Unlike other flow measuring devices, in laminar flow meters the relationship between pressure drop and flow is linear.
STANDARD GAS DATA TABLES: Those of you who have older Omega products (manufactured before October 2005) may notice small discrepancies between the gas property tables of your old and new units. Omega has incorporated the latest data sets from NIST (including their REFPROP 7 data) in our products’ built-in gas property models. Be aware that the calibrators that you may be using may be checking against older data sets such as the widely distributed Air Liquide data. This may generate apparent calibration discrepancies of up to 0.6% of reading on well behaved gases and as much as 3% of reading on some gases such as propane and butane, unless the standard was directly calibrated on the gas in question. As the older standards are phased out, this difference in readings will cease to be a problem. If you see a difference between the Omega meter and your in-house standard, in addition to calling Omega, call the manufacturer of your standard for clarification as to which data set they used in their calibration. This comparison will in all likelihood resolve the problem.
28
PURE
NO
N-C
ORR
OSI
VE
GA
SES
25°C
0°C
Gas
N
umbe
rSh
ort
Nam
eLo
ng N
ame
Abso
lute
Vi
scos
ityD
ensit
y 14
.696
PSI
ACo
mpr
essib
ilty
14.6
96 P
SIA
Abso
lute
Vi
scos
ity
Den
sity
14.6
96
PSIA
Com
pres
sibilt
y 14
.696
PSI
A
14C2
H2
Acet
ylen
e10
4.44
800
1.07
200
0.99
2800
097
.374
1.17
280.
9905
0A
irA
ir18
4.89
890
1.18
402
0.99
9696
717
2.57
41.
2930
0.99
941
Ar
Arg
on22
6.23
990
1.63
387
0.99
9365
621
0.16
71.
7840
0.99
9116
i-C4H
10i-B
utan
e74
.978
462.
4402
80.
9735
331
68.7
592.
6887
0.96
4513
n-C4
H10
n-Bu
tane
74.0
5358
2.44
930
0.96
9949
367
.690
2.70
370.
9591
4CO
2Ca
rbon
Dio
xide
149.
3184
01.
8079
80.
9949
545
137.
107
1.97
680.
9933
3CO
Carb
on M
onox
ide
176.
4933
01.
1453
00.
9996
406
165.
151
1.25
050.
9993
60D
2D
eute
rium
126.
5983
60.
1645
51.
0005
970
119.
196
0.17
961.
0006
5C2
H6
Etha
ne93
.541
171.
2384
60.
9923
987
86.1
291.
3550
0.99
0115
C2H
4Et
hyle
ne (E
then
e)10
3.18
390
1.15
329
0.99
4255
094
.697
1.26
110.
9925
7H
e H
eliu
m19
8.45
610
0.16
353
1.00
0472
018
6.94
50.
1785
1.00
056
H2
Hyd
roge
n89
.153
550.
0823
51.
0005
940
83.9
690.
0899
1.00
0617
KrKr
ypto
n25
1.32
490
3.43
229
0.99
7926
623
2.19
33.
7490
0.99
722
CH4
Met
hane
110.
7595
00.
6568
80.
9982
472
102.
550
0.71
750.
9976
10N
eN
eon
311.
1264
00.
8244
21.
0004
810
293.
822
0.89
991.
0005
8N
2N
itrog
en17
8.04
740
1.14
525
0.99
9801
616
6.28
71.
2504
0.99
959
N2O
Nitr
ous
Oxi
de14
8.41
240
1.80
888
0.99
4532
713
6.31
01.
9779
0.99
2811
O2
Oxy
gen
205.
5021
01.
3087
90.
9993
530
191.
433
1.42
900.
9990
12C3
H8
Prop
ane
81.4
6309
1.83
204
0.98
3805
474
.692
2.01
050.
9785
19SF
6Su
lfur H
exafl
uorid
e15
3.53
200
6.03
832
0.98
8668
114
0.89
06.
6162
0.98
4918
XeXe
non
229.
8483
05.
3950
20.
9947
117
212.
157
5.89
800.
9932
GA
S SE
LECT
> S
tand
ard:
FM
A-1
600A
Met
ers
will
dis
play
: Ace
tyle
ne, A
ir, A
rgon
, But
ane,
Car
bon
Dio
xide
, Car
bon
Mon
oxid
e, E
than
e, E
thyl
ene
(Eth
ene)
, Hel
ium
, Hyd
roge
n,
Iso-
Buta
ne, K
rypt
on, M
etha
ne, N
eon,
Nitr
ogen
, Nitr
ous
Oxi
de, O
xyge
n, P
ropa
ne, S
ulfu
r Hex
afluo
ride,
Xen
on, H
E-25
, HE-
75, A
1025
, C-2
, C-8
, C-1
0,
C-25
, C-7
5, P
-5, S
tar2
9.
FMA
-160
0A-L
SS M
eter
s ad
d th
e fo
llow
ing:
Am
mon
ia, C
hlor
ine
Gas
, Hyd
roge
n Su
lfide
, Nitr
ic O
xide
, Nitr
ogen
Trifl
ourid
e, P
ropy
lene
, Su
lfur
Dio
xide
, and
Nitr
ogen
Dio
xide
to 0
.5%
in a
n in
ert c
arrie
r, Re
frig
eran
t gas
es.
29
PURE
CO
RRO
SIV
ES*
25°C
0°C
Gas
N
umbe
rSh
ort
Nam
eLo
ng N
ame
Abso
lute
Vi
scos
ityD
ensit
y 14
.696
PSI
ACo
mpr
essib
ilty
14.6
96 P
SIA
Abso
lute
Vi
scos
ityD
ensit
y 14
.696
PSI
ACo
mpr
essib
ilty
14.6
96 P
SIA
32N
H3
Am
mon
ia10
0.92
580
0.70
352
0.98
9455
591
.930
0.77
150.
9848
612
801B
uten
eBu
tyle
ne (1
-But
ene)
81.6
2541
2.35
906
0.97
2125
174
.354
2.60
360.
9614
456
81cB
uten
eCi
s-Bu
tene
(c
is-2
-but
ene)
79.9
6139
2.36
608
0.96
9240
5Li
quid
Liqu
idLi
quid
82iB
uten
eIs
o-Bu
tene
80.8
4175
2.35
897
0.97
2162
673
.640
2.60
380.
9613
501
83tB
uten
eTr
ans-
Bute
ne80
.280
182.
3659
60.
9692
902
Liqu
idLi
quid
Liqu
id84
COS
Carb
onyl
Sul
fide
124.
0960
02.
4832
20.
9888
443
113.
127
2.72
020.
9853
2833
Cl2
Chlo
rine
134.
5660
02.
9350
60.
9874
470
125.
464
3.16
350.
9840
785
CH3O
CH3
Dim
ethy
leth
er
90.9
9451
1.91
822
0.98
1645
382
.865
2.10
900.
9745
473
34H
2SH
ydro
gen
Sulfi
de (H
2S)
123.
8689
01.
4037
60.
9923
556
112.
982
1.53
610.
9898
858
31N
F3N
F3 (N
itrog
en T
rifluo
ride)
175.
4250
02.
9133
90.
9963
859
162.
426
3.18
400.
9951
506
30N
ON
O (N
itric
Oxi
de)
190.
0595
01.
2267
20.
9997
970
176.
754
1.33
940.
9995
317
36C3
H6
Prop
ylen
e (P
ropy
lene
)85
.598
951.
7450
90.
9856
064
78.1
291.
9139
0.98
0937
386
SiH
4Si
lane
(SiH
4)11
5.94
400
1.32
003
0.99
4500
010
7.05
31.
4433
0.99
282
35SO
2Su
lfur D
ioxi
de12
7.83
100
2.66
427
0.98
2840
711
6.71
72.
9312
0.97
5086
6*P
ure
Corr
osiv
e ga
ses
are
only
ava
ilabl
e on
FM
A-1
600A
-LSS
inst
rum
ents
that
are
com
patib
le w
ith th
ese
gase
s.
30
REFR
IGER
AN
TS*
25°C
0°C
Gas
N
umbe
rSh
ort
Nam
eLo
ng N
ame
Abso
lute
Vi
scos
ityD
ensit
y 14
.696
PSI
ACo
mpr
essib
ilty
14.6
96 P
SIA
Abso
lute
Vi
scos
ityD
ensit
y 14
.696
PSI
ACo
mpr
essib
ilty
14.6
96 P
SIA
100
R-11
Tric
hlor
ofluo
rom
etha
ne10
1.60
480
5.82
358
0.96
4144
8Li
quid
Liqu
idLi
quid
101
R-11
5Ch
loro
pent
afluo
roet
hane
125.
1478
06.
4329
30.
9814
628
114.
891
7.06
660.
9752
287
102
R-11
6H
exafl
uoro
etha
ne13
7.81
730
5.70
097
0.98
9501
112
6.63
56.
2458
0.98
5844
810
3R-
124
Chlo
rote
trafl
uoro
etha
ne11
5.93
110
5.72
821
0.97
3828
610
5.80
86.
3175
0.96
3807
104
R-12
5Pe
ntafl
uoro
etha
ne12
9.61
740
4.98
169
0.98
4759
911
8.79
35.
4689
0.97
9137
105
R-13
4ATe
trafl
uoro
etha
ne11
8.18
820
4.25
784
0.97
9481
010
8.31
14.
6863
0.97
1382
510
6R-
14Te
trafl
uoro
met
hane
172.
4468
03.
6108
40.
9962
553
159.
688
3.94
670.
9948
964
107
R-14
2bCh
loro
diflu
oroe
than
e10
4.20
190
4.21
632
0.97
4226
495
.092
4.65
090.
9640
371
108
R-14
3aTr
ifluo
roet
hane
110.
8660
03.
4945
10.
9830
011
101.
344
3.83
940.
9765
755
109
R-15
2aD
ifluo
roet
hane
100.
8132
02.
7590
30.
9785
245
91.9
523.
0377
0.97
0102
511
0R-
22D
ifluo
rom
onoc
hlor
omet
hane
126.
3039
03.
5867
90.
9853
641
115.
325
3.93
600.
9801
128
111
R-23
Trifl
uoro
met
hane
149.
1316
02.
8840
40.
9922
734
136.
997
3.15
680.
9895
204
112
R-32
Difl
uoro
met
hane
126.
1314
02.
1531
40.
9875
960
115.
303
2.36
190.
9827
161
113
RC-3
18O
ctafl
uoro
cycl
obut
ane
115.
0469
08.
4291
70.
9700
156
104.
785
9.30
170.
9594
738
114
R-40
4A44
% R
-125
/ 4%
R-1
34A
/ 52%
R-1
43A
120.
3098
24.
1800
20.
9836
342
111.
584
4.59
320.
9770
889
115
R-40
7C23
% R
-32
/ 25%
R-1
25 /
52%
R-1
34A
123.
5536
93.
9526
80.
9826
672
112.
698
4.34
270.
9762
849
116
R-41
0A50
% R
-32
/ 50%
R-1
2513
0.24
384
3.56
538
0.98
6178
012
2.41
73.
9118
0.98
1106
111
7R-
507A
50%
R-1
25 /
50%
R-1
43A
121.
1820
24.
2387
60.
9838
805
112.
445
4.65
730.
9774
207
*Ref
rige
rant
gas
es a
re o
nly
avai
labl
e on
FM
A-1
600A
-LSS
inst
rum
ents
that
are
com
patib
le w
ith th
ese
gase
s.
31
WEL
DIN
G G
ASE
S25
°C0°
CG
as
Num
ber
Shor
t N
ame
Long
Nam
eAb
solu
te
Visc
osity
Den
sity
14.6
96 P
SIA
Com
pres
sibilt
y 14
.696
PSI
AAb
solu
te
Visc
osity
Den
sity
14.6
96 P
SIA
Com
pres
sibilt
y 14
.696
PSI
A23
C-2
2% C
O2
/ 98%
Ar
224.
7148
01.
6372
70.
9993
165
208.
673
1.78
770.
9989
9322
C-8
8% C
O2
/ 92%
Ar
220.
1352
01.
6474
90.
9991
624
204.
199
1.79
890.
9987
964
21C-
1010
% C
O2
/ 90%
Ar
218.
6026
01.
6509
10.
9991
086
202.
706
1.80
270.
9987
278
140
C-15
15%
CO
2 / 8
5% A
r21
4.74
960
1.65
945
0.99
8968
719
8.96
01.
8121
0.99
8549
314
1C-
2020
% C
O2
/ 80%
Ar
210.
8696
01.
6680
00.
9988
210
195.
198
1.82
150.
9983
605
20C-
2525
% C
O2
/ 75%
Ar
206.
9763
01.
6765
80.
9986
652
191.
436
1.83
090.
9981
609
142
C-50
50%
CO
2 / 5
0% A
r18
7.53
160
1.71
972
0.99
7748
417
2.84
31.
8786
0.99
6977
724
C-75
75%
CO
2 / 2
5% A
r16
8.22
500
1.76
344
0.99
6548
415
4.67
01.
9271
0.99
5401
25H
e-25
25%
He
/ 75%
Ar
231.
6056
31.
2659
80.
9996
422
216.
008
1.38
140.
9999
341
143
He-
5050
% H
e / 5
0% A
r23
6.15
149
0.89
829
0.99
9918
822
0.46
40.
9800
1.00
039
26H
e-75
75%
He
/ 25%
Ar
234.
6860
10.
5308
11.
0001
954
216.
937
0.57
921.
0005
7114
4H
e-90
90%
He
/ 10%
Ar
222.
1456
60.
3104
11.
0003
614
205.
813
0.33
881.
0005
727
A10
2590
% H
e / 7.
5% A
r / 2.
5% C
O2
214.
9760
80.
3146
01.
0002
511
201.
175
0.34
331.
0005
56
28St
ar29
Star
gon
CS 9
0% A
r /
8% C
O2
/ 2%
O2
219.
7934
01.
6409
90.
9991
638
203.
890
1.79
180.
9987
98
32
BIO
REA
CTO
R G
ASE
S25
°C0°
CG
as
Num
ber
Shor
t N
ame
Long
Nam
eAb
solu
te
Visc
osity
Den
sity
14.6
96 P
SIA
Com
pres
sibilt
y 14
.696
PSI
AAb
solu
te
Visc
osity
Den
sity
14.6
96 P
SIA
Com
pres
sibilt
y 14
.696
PSI
A14
5Bi
o-5M
5% C
H4
/ 95%
CO
214
8.46
635
1.75
026
0.99
5119
113
6.26
81.
9134
0.99
3581
614
6Bi
o-10
M10
% C
H4
/ 90%
CO
214
7.54
809
1.69
254
0.99
5283
813
5.38
31.
8500
0.99
3893
147
Bio-
15M
15%
CH
4 / 8
5% C
O2
146.
5585
91.
6348
40.
9954
484
134.
447
1.78
670.
9941
932
148
Bio-
20M
20%
CH
4 / 8
0% C
O2
145.
4923
81.
5771
60.
9956
130
133.
457
1.72
350.
9944
8214
9Bi
o-25
M25
% C
H4
/ 75%
CO
214
4.34
349
1.51
950
0.99
5777
713
2.40
71.
6603
0.99
4759
415
0Bi
o-30
M30
% C
H4
/ 70%
CO
214
3.10
541
1.46
186
0.99
5942
313
1.29
01.
5971
0.99
5025
515
1Bi
o-35
M35
% C
H4
/ 65%
CO
214
1.77
101
1.40
424
0.99
6106
913
0.10
21.
5340
0.99
5280
315
2Bi
o-40
M40
% C
H4
/ 60%
CO
214
0.33
250
1.34
664
0.99
6271
612
8.83
41.
4710
0.99
5523
915
3Bi
o-45
M45
% C
H4
/ 55%
CO
213
8.78
134
1.28
905
0.99
6436
212
7.47
81.
4080
0.99
5756
415
4Bi
o-50
M50
% C
H4
/ 50%
CO
213
7.10
815
1.23
149
0.99
6600
912
6.02
51.
3450
0.99
5977
915
5Bi
o-55
M55
% C
H4
/ 45%
CO
213
5.30
261
1.17
394
0.99
6765
512
4.46
21.
2821
0.99
6188
615
6Bi
o-60
M60
% C
H4
/40%
CO
213
3.35
338
1.11
642
0.99
6930
112
2.77
91.
2193
0.99
6388
515
7Bi
o-65
M65
% C
H4
/35%
CO
213
1.24
791
1.05
891
0.99
7094
812
0.95
91.
1564
0.99
6577
915
8Bi
o-70
M70
% C
H4
/ 30%
CO
212
8.97
238
1.00
142
0.99
7259
411
8.98
71.
0936
0.99
6756
715
9Bi
o-75
M75
% C
H4
/ 25%
CO
212
6.51
146
0.94
395
0.99
7424
011
6.84
21.
0309
0.99
6925
116
0Bi
o-80
M80
% C
H4
/ 20%
CO
212
3.84
817
0.88
650
0.99
7588
711
4.50
10.
9681
0.99
7083
216
1Bi
o-85
M85
% C
H4
/ 15%
CO
212
0.96
360
0.82
907
0.99
7753
311
1.93
80.
9054
0.99
7230
916
2Bi
o-90
M90
% C
H4
/ 10%
CO
211
7.83
674
0.77
166
0.99
7917
910
9.11
90.
8427
0.99
7368
416
3Bi
o-95
M95
% C
H4
/ 5%
CO
211
4.44
413
0.71
426
0.99
8082
610
6.00
50.
7801
0.99
7495
7
33
BREA
THIN
G G
ASE
S25
°C0°
CG
as
Num
ber
Shor
t N
ame
Long
Nam
eAb
solu
te
Visc
osity
Den
sity
14.6
96 P
SIA
Com
pres
sibilt
y 14
.696
PSI
AAb
solu
te
Visc
osity
Den
sity
14.6
96 P
SIA
Com
pres
sibilt
y 14
.696
PSI
A16
4EA
N-3
232
% O
2 / 6
8% N
218
6.86
315
1.19
757
0.99
9658
017
4.92
51.
3075
0.99
9371
516
5EA
N36
% O
2 / 6
4% N
218
7.96
313
1.20
411
0.99
9640
117
5.96
31.
3147
0.99
9350
816
6EA
N-4
040
% O
2 / 6
0% N
218
9.06
268
1.21
065
0.99
9622
217
6.99
31.
3218
0.99
9330
216
7H
eOx-
2020
% O
2 / 8
0% H
e21
7.88
794
0.39
237
1.00
0248
220
4.17
50.
4281
1.00
0593
168
HeO
x-21
21%
O2
/ 79%
He
218.
1598
40.
4038
21.
0002
370
204.
395
0.44
061.
0005
9116
9H
eOx-
3030
% O
2 / 7
0% H
e21
9.24
536
0.50
683
1.00
0136
320
5.14
00.
5530
1.00
0565
170
HeO
x-40
40%
O2
/ 60%
He
218.
5991
30.
6213
21.
0000
244
204.
307
0.67
791.
0005
0217
1H
eOx-
5050
% O
2 / 5
0% H
e21
6.95
310
0.73
583
0.99
9912
520
2.59
20.
8028
1.00
0401
172
HeO
x-60
60%
O2
/ 40%
He
214.
8262
60.
8503
70.
9998
006
200.
467
0.92
781.
0002
5717
3H
eOx-
8080
% O
2 / 2
0% H
e21
0.11
726
1.07
952
0.99
9576
819
5.87
21.
1781
0.99
9801
917
4H
eOx-
9999
% O
2 / 1
% H
e20
5.72
469
1.29
731
0.99
9364
219
1.64
61.
4165
0.99
9079
617
5EA
-40
Enric
hed
Air-4
0% O
218
9.42
518
1.21
429
0.99
9617
717
7.39
61.
3258
0.99
9326
117
6EA
-60
Enric
hed
Air-6
0% O
219
4.79
159
1.24
578
0.99
9529
518
2.26
11.
3602
0.99
9226
617
7EA
-80
Enric
hed
Air-8
0% O
220
0.15
060
1.27
727
0.99
9441
218
6.93
71.
3946
0.99
9128
8
178
Met
abol
Met
abol
ic E
xhal
ant (
16%
O2
/ 78
.04%
N2
/ 5%
CO
2 / 0
.96%
Ar)
180.
9593
61.
2090
90.
9994
833
170.
051
1.32
000.
9992
587
34
LASE
R G
ASE
S25
°C0°
CG
as
Num
ber
Shor
t N
ame
Long
Nam
eAb
solu
te
Visc
osity
Den
sity
14.6
96 P
SIA
Com
pres
sibilt
y 14
.696
PSI
AAb
solu
te
Visc
osity
Den
sity
14.6
96 P
SIA
Com
pres
sibilt
y 14
.696
PSI
A17
9LG
-4.5
4.5%
CO
2 / 1
3.5%
N2
/ 82%
He
199.
2430
00.
3696
31.
0001
332
187.
438
0.40
331.
0005
5118
0LG
-66%
CO
2 / 1
4% N
2 / 8
0% H
e19
7.87
765
0.39
910
1.00
0047
118
6.67
00.
4354
1.00
053
181
LG-7
7% C
O2
/ 14%
N2
/ 79%
He
197.
0051
90.
4154
80.
9999
919
186.
204
0.45
331.
0005
1418
2LG
-99%
CO
2 / 1
5% N
2 / 7
6% H
e19
5.06
655
0.45
805
0.99
9874
918
4.83
50.
4997
1.00
0478
183
HeN
e-9
9% N
e / 9
1% H
e22
4.68
017
0.22
301
1.00
0472
821
1.75
60.
2276
1.00
0516
184
LG-9
.49.
4% C
O2
/ 19.
25%
N2
/ 71.
35%
He
193.
7831
10.
5063
30.
9998
243
183.
261
0.55
231.
0004
58
FUEL
GA
SES
25°C
0°C
Gas
N
umbe
rSh
ort
Nam
eLo
ng N
ame
Abso
lute
Vi
scos
ityD
ensit
y 14
.696
PSI
ACo
mpr
essib
ilty
14.6
96 P
SIA
Abso
lute
Vi
scos
ityD
ensit
y 14
.696
PSI
ACo
mpr
essib
ilty
14.6
96 P
SIA
185
Syn
Gas
-140
% H
2 +
29%
CO
+ 2
0% C
O2
+ 11
% C
H4
155.
6474
40.
7977
40.
9989
315
144.
565
0.87
040.
9992
763
186
Syn
Gas
-264
% H
2 +
28%
CO
+ 1
% C
O2
+ 7%
CH
415
1.98
915
0.43
715
1.00
0106
414
2.24
90.
4771
1.00
0263
187
Syn
Gas
-370
% H
2 +
4% C
O +
25%
CO
2 +
1% C
H4
147.
3368
60.
5602
40.
9991
225
136.
493
0.61
110.
9997
559
188
Syn
Gas
-483
% H
2 + 14
% CO
+ 3%
CH4
133.
6368
20.
2482
51.
0003
901
125.
388
0.27
091.
0005
0918
9N
at G
as-1
93%
CH4
/ 3%
C2H
6 / 1%
C3H
8 / 2%
N2 /
1% C
O2
111.
7702
70.
7070
90.
9979
255
103.
189
0.77
220.
9973
965
190
Nat
Gas
-295
% C
H4
/ 3%
C2H
6 / 1
% N
2 / 1
% C
O2
111.
5557
00.
6906
10.
9980
544
103.
027
0.75
430.
9974
642
191
Nat
Gas
-395
.2%
CH
4 / 2
.5%
C2H
6 / 0
.2%
C3H
8 / 0
.1%
C4
H10
/ 1.
3% N
2 / 0
.7%
CO
211
1.49
608
0.68
980
0.99
8041
010
2.98
00.
7534
0.99
7472
5
192
Coal
Gas
50%
H2
/ 35%
CH
4 / 1
0% C
O /
5% C
2H4
123.
6851
70.
4428
10.
9993
603
115.
045
0.65
890.
9963
8719
3En
do75
% H
2 +
25%
N2
141.
7210
00.
3478
71.
0005
210
133.
088
0.37
971.
0005
1119
4H
HO
66.6
7% H
2 / 3
3.33
% O
218
0.46
190
0.49
078
1.00
0180
416
8.66
40.
5356
1.00
0396
195
HD
-5LP
G
96.1
% C
3H8
/ 1.5
% C
2H6
/ 0.4
%
C3H
6 / 1
.9%
n-C
4H10
81.4
5829
1.83
428
0.98
3678
174
.933
2.01
280.
9784
565
196
HD
-10
LPG
85%
C3H
8 /
10%
C3H
6 / 5
% n
-C4H
1081
.419
971.
8537
80.
9832
927
74.9
342.
0343
0.97
8049
9
35
O2
CON
CEN
TRAT
OR
GA
SES
25°C
0°C
Gas
N
umbe
rSh
ort
Nam
eLo
ng N
ame
Abso
lute
Vi
scos
ityD
ensit
y 14
.696
PSI
ACo
mpr
essib
ilty
14.6
96 P
SIA
Abso
lute
Vi
scos
ityD
ensit
y 14
.696
PSI
ACo
mpr
essib
ilty
14.6
96 P
SIA
197
OCG
-89
89%
O2
/ 7%
N2
/ 4%
Ar
204.
5331
31.
3103
30.
9993
849
190.
897
1.43
070.
9990
695
198
OCG
-93
93%
O2
/ 3%
N2
/ 4%
Ar
205.
6211
41.
3168
70.
9993
670
191.
795
1.43
790.
9990
499
199
OCG
-95
95%
O2
/ 1%
N2
/ 4%
Ar
206.
1649
71.
3201
40.
9993
580
192.
241
1.44
140.
9990
4
STA
CK G
ASE
S25
°C0°
CG
as
Num
ber
Shor
t N
ame
Long
Nam
eAb
solu
te
Visc
osity
Den
sity
14.6
96 P
SIA
Com
pres
sibilt
y 14
.696
PSI
AAb
solu
te
Visc
osity
Den
sity
14.6
96 P
SIA
Com
pres
sibilt
y 14
.696
PSI
A20
0FG
-12.
5% O
2 / 1
0.8%
CO
2 / 8
5.7%
N2
/ 1%
Ar
175.
2257
51.
2255
00.
9992
625
165.
222
1.33
790.
9990
842
201
FG-2
2.9%
O2
/ 14%
CO
2 / 8
2.1%
N2
/ 1%
Ar
174.
1800
21.
2472
90.
9991
056
164.
501
1.36
170.
9989
417
202
FG-3
3.7%
O2
/ 15%
CO
2 / 8
0.3%
N2
/ 1%
Ar
174.
0284
01.
2552
00.
9990
536
164.
426
1.37
030.
9988
933
203
FG-4
7% O
2 / 1
2% C
O2
/ 80%
N2
/ 1%
Ar
175.
9520
01.
2407
80.
9991
842
166.
012
1.35
460.
9990
116
204
FG-5
10%
O2
/ 9.5
% C
O2
/ 79.
5% N
2 / 1
% A
r17
7.65
729
1.22
918
0.99
9291
916
7.40
11.
3419
0.99
9104
420
5FG
-613
% O
2 / 7
% C
O2
/ 79%
N2
/ 1%
Ar
179.
3991
41.
2175
90.
9993
996
168.
799
1.32
930.
9991
932
CHRO
MAT
OG
RAPH
Y G
ASE
S25
°C0°
CG
as
Num
ber
Shor
t N
ame
Long
Nam
eAb
solu
te
Visc
osity
Den
sity
14.6
96 P
SIA
Com
pres
sibilt
y 14
.696
PSI
AAb
solu
te
Visc
osity
Den
sity
14.6
96 P
SIA
Com
pres
sibilt
y 14
.696
PSI
A29
P-5
5% C
H4
/ 95%
Ar
223.
9106
01.
5850
50.
9993
265
207.
988
1.73
070.
9990
036
206
P-10
10%
CH
4 90
% A
r22
1.41
810
1.53
622
0.99
9285
720
5.65
71.
6774
0.99
895
36
Supported Units: This device supports many different units. You may select the desired units (see page 28). Note that only units appropriate to this device are available for selection.
Pressure UnitsAbsolute Gauge Differential Notes
PaA PaG PaD pascalhPaA hPaG hPaD hectopascalkPaA kPaG kPaD kilopascalMPaA MPaG MPaD megapascalmbarA mbarG mbarD millibarbarA barG barD bar
g/cm2A g/cm2G g/cm2D gram force per square centimeterkg/cmA kg/cmG kg/cmD kilogram force per square centimeter
PSIA PSIG PSID pound force per square inchPSFA PSFG PSFD pound force per square foot
mTorrA mTorrG mTorrD millitorrtorrA torrG torrD torr
mmHgA mmHgG mmHgD millimeter of mercury at 0 CinHgA inHgG inHgD inch of mercury at 0 C
mmH2OA mmH2OG mmH2OD millimeter of water at 4 C (NIST conventional)mmH2OA mmH2OG mmH2OD millimeter of water at 60 CcmH2OA cmH2OG cmH2OD centimeter of water at 4 C (NIST conventional)cmH2OA cmH2OG cmH2OD centimeter of water at 60 CinH2OA inH2OG inH2OD inch of water at 4 C (NIST conventional)inH2OA inH2OG inH2OD inch of water at 60 C
atm atmospherem asl meter above sea level (only in /ALT builds)ft asl foot above sea level (only in /ALT builds)
V volt; no conversions are performed to or from other unitscount count count setpoint count, 0 – 64000
% % % percent of full scale
Flow UnitsVolumetric Standard Normal Notes
uL/m SuL/m NuL/m microliter per minutemL/s SmL/s NmL/s milliliter per second
mL/m SmL/m NmL/m milliliter per minutemL/h Sml/h NmL/h milliliter per hour
L/s SL/s NL/s liter per secondLPM SLPM NLPM liter per minuteL/h SL/h NL/h liter per hour
US GPM US gallon per minuteUS GPH US gallon per hour
CCS SCCS NCCS cubic centimeter per secondCCM SCCM NCCM cubic centimeter per minute
cm3/h Scm3/h Ncm3/h cubic centimeter per hourm3/m Sm3/m Nm3/m cubic meter per minutem3/h Sm3/h Nm3/h cubic meter per hourm3/d Sm3/d Nm3/d cubic meter per dayin3/m Sin3/m cubic inch per minuteCFM SCFM cubic foot per minuteCFH SCFH cubic foot per hour
kSCFM 1000 cubic feet per minutecount count count setpoint count, 0 – 64000
% % % percent of full scale
37
True Mass Flow UnitsLabel Notesmg/s milligram per second
mg/m milligram per minuteg/s gram per second
g/m gram per minuteg/h gram per hour
kg/m kilogram per minutekg/h kilogram per houroz/s ounce per second
oz/m ounce per minutelb/m pound per minutelb/h pound per hour
These can be used for mass flow on gas devices. These can also be used for volumetric flow on liquid devices calibrated in one of these units (liquid density is not yet supported).
Totalizer UnitsVolumetric Standard Normal Notes
uL SuL NuL microlitermL SmL NmL milliliterL SL NL liter
US GAL US galloncm3 Scm3 Ncm3 cubic centimeterm3 Sm3 Nm3 cubic meterin3 Sin3 cubic inchft3 Sft3 cubic foot
kSft3 1000 cubic feet
uP micropoise, a measure of viscosity; no conversions are performed to or from other units
Total Mass UnitsLabel Notes
mg milligramg gram
kg kilogramoz ouncelb pound
These can be used for totalized mass on gas devices. These can also be used for totalized volume on liquid devices calibrated in one of these units (liquid density is not yet supported).
Temperature UnitsLabel Notes
°C degree Celsius°F degree FarenheitK Kelvin°R degree Rankine
Time UnitsLabel Notesh:m:s Displayed value is hours:minutes:seconds
ms milliseconds second
m minutehour hourday day
38
TROUBLESHOOTING
Display does not come on or is weak.Check power and ground connections.
Flow reading is approximately fixed either near zero or near full scale regardless of actual line flow.Differential pressure sensor may be damaged. Avoid installations that can subject sensor to pressure drops in excess of 10 psid. A common cause of this problem is instantaneous application of high-pressure gas as from a snap acting solenoid valve upstream of the meter. If you suspect that your pressure sensor is damaged please discontinue use of the meter and contact Omega.
Displayed mass flow, volumetric flow, pressure or temperature is flashing and message MOV, VOV, POV or TOV is displayed:Our flow meters and controllers display an error message (MOV = mass overrange, VOV = volumetric overrange, POV = pressure overrange, TOV = temperature overrange) when a measured parameter exceeds the range of the sensors in the device. When any item flashes on the display, neither the flashing parameter nor the mass flow measurement is accurate. Reducing the value of the flashing parameter to within specified limits will return the unit to normal operation and accuracy. If the unit does not return to normal contact Omega.
Meter reads negative flow when there is a confirmed no flow condition.This is an indication of an improper tare. If the meter is tared while there is flow, that flow is accepted as zero flow. When an actual zero flow condition exists, the meter will read a negative flow. Simply re-tare at the confirmed zero flow condition. Also note that while the meter is intended for positive flow, it will read negative flow with reasonable accuracy, but not to the full scale flow rate (it is not calibrated for bi-directional flow) and no damage will result.
Meter does not agree with another meter I have in line.Volumetric meters are affected by pressure drops. Volumetric flow meters should not be compared to mass flow meters. Mass flow meters can be compared against one another provided there are no leaks between the two meters and they are set to the same standard temperature and pressure. Both meters must also be calibrated (or set) for the gas being measured. FMA-1600A mass flow meters are normally set to Standard Temperature and Pressure conditions of 25° C and 14.696 psia. Note: it is possible to special order meters with a customer specified set of standard conditions. The calibration sheet provided with each meter lists its standard conditions. When performing this comparison it is best to use the smallest transition possible between the two devices. Using small transitions will minimize lag and dead volume.
39
Flow flutters or is jumpy.The meters are very fast and will pick up any actual flow fluctuations such as from a diaphragm pump, etc. Also, inspect the inside of the upstream connection for debris such as PTFE tape shreds. Note: FMA-PC1600 meters feature a programmable geometric running average (GRA) that can aid in allowing a rapidly fluctuating flow to be read (see “Pressure Averaging” and “Flow Averaging” page 16).
The output signal is lower than the reading at the display.This can occur if the output signal is measured some distance from the meter, as voltage drops in the wires increase with distance. Using heavier gauge wires, especially in the ground wire, can reduce this effect.
RS232 Serial Communications is not responding.Check that your meter is powered and connected properly. Be sure that the port on the computer to which the meter is connected is active. Confirm that the port settings are correct per the RS232 instructions in this manual (Check the RS232 communications select screen for current meter readings). Close Hyperterminal® and reopen it. Reboot your PC. See pages 20 - 26 for more information on RS232 signals and communications.
Slower response than specified.FMA-PC1600 Meters feature a programmable Geometric Running Average (GRA). Depending on the full scale range of the meter, it may have the GRA set to enhance the stability/readability of the display, which would result in slower perceived response time. Please see “Pressure Averaging” and “Flow Averaging” on page 16.
Jumps to zero at low flow.FMA-PC1600 Meters feature a programmable zero deadband. The factory setting is usually 0.5% of full scale. This can be adjusted between NONE and 6.3% of full scale. See page 16.
Discrepancies between old and new units.Please see “Standard Gas Data Tables” explanation on page 27.
40
Maintenance and Recalibration
General: Portable Calibration Units require minimal maintenance. They have no moving parts. The single most important thing that affects the life and accuracy of these devices is the quality of the gas being measured. The meters are designed to measure CLEAN, DRY, NON-CORROSIVE gases.
Moisture, oil and other contaminants can affect the laminar flow elements.
Recalibration: The recommended period for recalibration is once every year. A label located on the FMA-PC1600 lists the most recent calibration date. The FMA-PC1600 should be returned to the factory for recalibration within one year from the listed date. Before calling to schedule a recalibration, please note the serial number on the back of the meter. The Serial Number, Model Number, and Date of Manufacture are also available on the Model Info display (page 19).
Cleaning: FMA-PC1600 meters require no periodic cleaning. If necessary, the outside of the meter can be cleaned with a soft dry cloth. Avoid excess moisture or solvents.
For repair, recalibration or recycling of this product contact Omega
41
Option: Totalizing Mode - MetersMeters can be purchased with the Totalizing Mode option. This option adds an additional mode screen that displays the total flow (normally in the units of the main flow screen) that has passed through the device since the last time the totalizer was cleared. The Totalizing Mode screen is accessed by pushing the TOTAL/TIMER button on the MAIN display.
TOTAL/TIMER: Pushing the TOTAL/TIMER button will cycle the large numbers on the display between total mass and time elapsed.Rollover – The customer can also specify at the time of order what the totalizer is to do when the maximum count is reached. The following options may be specified:No Rollover – When the counter reaches the maximum count it stops counting until the counter is cleared.Rollover – When the counter reaches the maximum count it automatically rolls over to
zero and continues counting until the counter is cleared.Rollover with Notification – When the counter reaches the maximum count it automatically rolls over to zero, displays an overflow error, and continues counting until the counter is cleared.TOTAL MASS: The counter can have as many as seven digits. At the time of order, the customer must specify the range. This directly affects the maximum count. For instance, if a range of 1/100ths of a liter is specified on a meter which is totalizing in liters, the maximum count would be 99999.99 liters. If the same unit were specified with a 1 liter range, the maximum count would be 9999999 liters.ELAPSED TIME: The small numbers below the mass total show the elapsed time since the last reset in hours, minutes and seconds. The maximum measurable elapsed time is 9999 hours 59 minutes 59 seconds. The hours count resets when RESET is pushed, an RS232 clear is executed or on loss of power. Press TOTAL/TIMER to show this as the primary display.SETPT: Pushing SETPT will allow you to change the controller's set-point.RESET – The counter can be reset to zero at any time by pushing the RESET button. To clear the counter via RS232, establish serial communication with the meter or controller as described in the RS232 or RS-485 section of the manual. To reset the counter, enter the following commands:
In Polling (addressable) Mode: Address$$T <Enter> (e.g. B$$T <Enter>)
SETPT+123.4
MENU/MAIN
SCCM+123.4
TOTAL/TIMER
BATCH RESET
50:56 h:m:s+123.45
Scm3
42
Accessories
Part Number Description
FMA1600-C1 8 Pin Male Mini-DIN connector cable, single ended, 6 foot length
FMA1600-C2 8 Pin Male Mini-DIN connector cable, double ended, 6 foot length
FMA1600-C3 8 Pin Male Mini-DIN to DB9 Female Adapter, 6 foot length
FMA1600-PSU Universal 100-240 VAC to 24 Volt DC Power Supply Adapter
FMA1600-CRA 8 Pin Male Right Angle Mini-Din Cable, single ended, 6 foot length
FMA1600-C1-25FT 8 Pin Male Mini-DIN connector cable, single ended, 25 foot length
FMA1600-C2-25FT 8 Pin Male Mini-DIN connector cable, double ended, 25 foot length
FMA1600-MDB Multi-Drop Box
43
Technical Data for Omega FMA-PC1600 Mass Flow MetersFMA-1600A 0 to 0.5 sccm Full Scale through 0 to 1500 slpm Full Scale
FMA-LP1600A 0 to 0.5 sccm Full Scale through 0 to 250 slpm Full ScaleStandard Operating Specifications (Contact Omega for available options)
Performance FMA-PC1600 Mass Flow MeterAccuracy at calibration conditions
after tare ± (0.8% of Reading + 0.2% of Full Scale)
High Accuracy at calibration conditions after tare
± (0.4% of Reading + 0.2% of Full Scale)High Accuracy option not available for units ranged under 5 sccm or over 500 slpm.
Repeatability ± 0.2% Full ScaleZero Shift and Span Shift 0.02% Full Scale / ºCelsius / Atm
Operating Range / Turndown Ratio 0.5% to 100% Full Scale / 200:1 TurndownMaximum Measurable Flow Rate 128% Full Scale
Typical Response Time 10 ms (Adjustable) Warm-up Time < 1 Second
Communications / Power FMA-PC1600 Mass Flow MeterMonochrome LCD Display with
integrated touchpad Simultaneously displays Mass Flow, Volumetric Flow, Pressure and Temperature
Digital Output Signal1 RS232 Serial Electrical Supply Four AA Vdc batteries2 9-20 Vdc wall outlet adaptor minimum 150 mA
1. The Digital Output Signal communicates Mass Flow, Volumetric Flow, Pressure and Temperature 2. Four AA 1.5 Vdc Alkaline, Zinc-Carbon or Lithium Ion batteries. Use of 1.2 Vdc rechargeable batteries is not
recommended.
Operating Conditions FMA-PC1600 Mass Flow MeterMass Reference Conditions (STP) 25 ºC & 14.696 psia (standard — others available on request)
Operating Temperature −10 to +60 ºCelsiusHumidity Range (Non–Condensing) 0 to 100%
Maximum Pressure (Static) FMA-1600A: 145 psig FMA-LP1600A: 50 psigMaximum Allowable Instantaneous Differential
Pressure Across Device (Inlet to Outlet) FMA-1600A: 75 psig FMA-LP1600A: 15 psig
Proof Pressure 175 psig
Ingress Protection IP40
Wetted Materials303 & 302 Stainless Steel, FKM Heat Cured Silicone Rubber, Glass Reinforced Polyphenylene Sulfide, Heat Cured Epoxy, Aluminum, Gold, Silicon, Glass. If your application demands a different material, please contact Omega.
FS Flow FMA-1600A Meter
Pressure Drop at FS Flow (psid)*
0.5 sccm to 1 sccm 1.0
2 sccm to 50 sccm 1.0
100 sccm to 20 slpm 1.050 slpm 2.0100 slpm 2.5250 slpm 2.1500 slpm 4.01000 slpm 6.01500 slpm 9.0
*Venting to atmosphere
Range Specific Specifications
No charge for alternate full scale ranges to increase accuracy (e.g. 2.5 slpm) or alternate units of measure (e.g. 133 scfh).
Full Scale range applies for all 30 gases and mixtures in the calibration table (page 17).
FS Flow FMA-LP1600A Meter
Pressure Drop at FS Flow (psid)*
0.5 sccm to 2 sccm 0.065 sccm to 20 sccm 0.07
50 sccm 0.07100 sccm to 200 sccm 0.06
500 sccm 0.071 slpm to 5 slpm 0.07
10 slpm 0.0820 slpm 0.2540 slpm 0.1250 slpm 0.14100 slpm 0.24250 slpm 0.60
*Venting to atmosphere
Weight: 12 - 20 lb depending on configuration
FMA-PC1600 Case Dimensions: 16” L x 13” W x 7” H
Process Connections: 1/8”, 1/4”, 3/8”, 1/2”, 6mm, 10mm, or 12mm push-connect style tubing fittings
44
WARRANTY/DISCLAIMEROMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product. If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are not limited to contact points, fuses, and triacs.OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of OMEGA with respect to this order, whether based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be liable for consequential, incidental or special damages.CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical applications or used on humans. Should any Product(s) be used in or with any nuclear installation or activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY / DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in such a manner.
RETURN REQUESTS/INQUIRIESDirect all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return package and on any correspondence.The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit.
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest in technology and engineering.OMEGA is a registered trademark of OMEGA ENGINEERING, INC.© Copyright 2016 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.
FOR WARRANTY RETURNS, please have the following information available BEFORE contacting OMEGA:1. Purchase Order number under which the product was PURCHASED,2. Model and serial number of the product
under warranty, and3. Repair instructions and/or specific
problems relative to the product.
FOR NON-WARRANTY REPAIRS, consult OMEGA for current repair charges. Have the following information available BEFORE contacting OMEGA:1. Purchase Order number to cover the
COST of the repair,2. Model and serial number of the product, and3. Repair instructions and/or specific problems relative to the product.
M-5453/1016
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OMEGA…Of Course!Shop online at omega.comSM
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