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Part Number 80176-01Rev. G (08/07)

Bently Nevada™ Asset Condition Monitoring

Operation Manual

3300/15 Dual Vibration Monitor

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3300/15 Dual Vibration Monitor Operation Manual

ii

Copyright © 1987. Bently Nevada LLC.

All rights reserved.

The information contained in this document is subject to change without notice.

The following are trademarks of General Electric Company in the United States and othercountries:

Keyphasor and Proximitor

Contact Information

The following ways of contacting Bently Nevada are provided for those times when you

cannot contact your local representative:

Mailing Address 1631 Bently Parkway South

Minden, Nevada USA 89423

USA

Telephone 1.775.782.3611

1.800.227.5514

Fax 1.775.215.2873

Internet www.ge-energy.com/bently

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Additional Information

Notice:

This manual does not contain all the information required to operate and maintain

the product. Refer to the following manuals for other required information.

3300 System Overview (Part Number 80171-01)

3300 System Installation Instructions (Part Number 80172-01)

3300 System Troubleshooting (Part Number 80173-01)

3300/12 AC Power Supply (Part Number 89602-01)

3300/14 DC Power Supply (Part Number 101256-01)

3300/03 System Monitor (Part Number 89604-01)

3300 Dual Vibration Monitor Maintenance (Part Number 80177-01)3300 Internal Barrier Installation (Part Number 88837-01)

Product Disposal Statement

Customers and third parties, who are not member states of the European Union, who arein control of the product at the end of its life or at the end of its use, are solelyresponsible for the proper disposal of the product. No person, firm, corporation,association or agency that is in control of product shall dispose of it in a manner that isin violation of any applicable federal, state, local or international law. Bently Nevada LLCis not responsible for the disposal of the product at the end of its life or at the end of itsuse.

SYMBOLSSpecial symbols are used in the manual to illustrate specifics in the step-by-step process.For example:

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Contents

1.

DUAL VIBRATION MONITOR SYSTEM................................................................................................... 1

2. MONITOR FUNCTIONS ...............................................................................................................................2

3.

MONITOR OPTIONS ..................................................................................................................................... 4

4.

PROGRAMMABLE OPTIONS ..................................................................................................................... 5

5.

OK.......................................................................................................................................................................6

6.

BYPASS............................................................................................................................................................. 7

7.

ALERT ................................................................................................................................................................8

8. DANGER ........................................................................................................................................................... 9

9.

MONITOR RANGES.....................................................................................................................................10

10.

READ CHANNEL VIBRATION .............................................................................................................11

11.

READ GAP VOLTAGE............................................................................................................................12

12.

READ ALERT SETPOINT LEVELS.......................................................................................................13

13.

READ DANGER SETPOINT LEVELS..................................................................................................14

14. SELF TEST .................................................................................................................................................15

15.

ERROR CODES ........................................................................................................................................19

16.

INDEX.........................................................................................................................................................20

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Section 1 - DUAL VIBRATION MONITOR SYSTEM

1

1. DUAL VIBRATION MONITOR SYSTEM

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2

2. MONITOR FUNCTIONSRADIAL VIBRATION - Radial vibration is defined as shaft dynamic motion in a directionperpendicular to the shaft centerline. The Dual Vibration Monitor displays vibration valuesfor two channels (Channels A and B).

PROBE GAP VOLTAGE - Probe gap is measured as a negative dc voltage that is directlyproportional to the gap distance between the face of a proximity probe and the surface beingmonitored. Probe gap voltage for each channel is displayed on the front panel meter by pressingthe GAP switch.

OK - When the Proximitor output voltage is within its upper/lower OK voltage limits, thetransducer is defined as OK. The OK detection circuit controls the channel OK LED and themonitor relay drive to the OK Relay.

OK RELAY - The OK Relay is located on the Power Input Module. Every channel in the rack must beOK or bypassed to energize the OK Relay.

TIMED OK/CHANNEL DEFEAT - Timed OK/Channel Defeat minimizes the chance of false alarmscaused by faulty transducer wiring. If the probe input signal level on a given channel is not withinupper/lower limits, that channel OK LED goes off, the BYPASS LED goes on, the channel is disabled,and the OK Relay deenergizes. Once the channel input signal level is restored within theupper/lower OK limits for 30 seconds, the channel OK LED will start flashing at 1 Hz to indicate theOK state is restored, the BYPASS LED goes off, and monitoring is enabled. The RESET switch on thefront panel of the System Monitor must be pressed to stop the OK LED from flashing (it will thenremain on steadily). If the channel remains in the NOT OK state, a Channel Bypass switch on themonitor circuit board can be set to put the channel "out of service". The monitor can then beoperated as a single-channel monitor. Without this feature, the OK Relay could not bereactivated. In the Timed OK/Channel Defeat and Channel Bypass modes, the recorder is clamped

to its minimum value and the meter registers zero.

ALARM - Pressing the ALERT or DANGER switch on the front panel of the monitor causes thecorresponding Alert (first-level alarm) or Danger (second-level alarm) alarm setpoints on bothchannels to be displayed on the front panel meter. ALERT and DANGER LEDs light when thevibration signal level exceeds preset levels for the selected time delay, and appropriate Alert andDanger alarm relay contacts are activated. AND or OR voting logic options determine when theDanger alarm relay contacts are activated.

FIRST OUT - Separate First Out circuits exist for Alert and Danger alarms. A monitor with the FirstOut option selected flashes a channel alarm LED if that channel was the first channel in the rackto go into alarm since the last reset or power up. Pressing the RESET switch acknowledges the

First Out condition. This allows the next channel in the rack that goes from non-alarm-to-alarmcondition to indicate First Out by flashing its alarm LED.

ALARM RELAYS - Monitor alarms can be programmed for either latching or non-latching mode.In the nonlatching mode, the alarm resets automatically when the alarm no longer exists. In thelatching mode, the alarm condition must be reset manually by pressing the RESET switch on thefront panel of the System Monitor (or by closing external Reset contacts). The alarm will not resetif the alarm condition still exists.

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Section 2 - MONITOR FUNCTIONS

3

DANGER BYPASS - For maintenance functions, a Danger Bypass switch on the monitor circuitboard is set to inhibit the Danger relay drive. This function turns on the BYPASS LEDs. Other frontpanel functions are not affected. This function can be enabled using a jumper within the monitor.

BUFFERED OUTPUT - The Channels A and B coaxial cable connectors on the front panel of themonitor and terminals on the Signal Input Relay Module provide buffered signals from therespective channel transducers. These connectors can be used for connection of external

equipment. TRIP MULTIPLY - The Trip Multiply function multiplies set points by 2X or 3X in response to anexternal contact closure through terminals on the Power Input Module. The front panel meterand recorder outputs could saturate in this mode.

RECORDER OUTPUTS - Depending on the option selected, the recorder output levels proportionalto measured vibration are either 0 to -10 Vdc, +1 to +5 Vdc, or +4 to +20 mA.

SELF TEST - The monitor has three categories of self test: cyclic, power up, and user-invoked.

• Power up self test is performed automatically each time the monitor power is turned on.A series of basic tests and transducer OK tests are performed. Upon completion of thetests, if no errors are present the monitor will perform Timed OK/Channel Defeat andmonitoring will resume in 30 seconds.

• Cyclic self test is performed automatically during monitor operation. Errors encounteredduring cyclic tests disable the monitor and flash a LCD bargraph error code. Should theerror be intermittent the monitor will return to operation, but the error codes are stored forretrieval during user-invoked self test. Stored error codes are indicated by OK LEDsflashing at 5 Hz provided that the channel is OK.

• User-invoked self test performs power up self test and allows error messages storedduring cyclic tests to be read and cleared. Stored errors are annunciated by flashing theOK LEDs at 5 Hz and displaying the error codes on the front panel LCD bargraph.

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3. MONITOR OPTIONS

DUAL VIBRATION

PART NUMBER

FULL SCALE RANGE TRANSDUCER INPUT ALARM RELAY APPROVALS

3300/15 – AXX - BXX - CXX - DXX

01 = 0 - 3 MILS pk-pk 01 = 7200 5mm & 8mm 00 = NONE 00 = NONE

02 = 0 - 5 MILS pk-pk Prox 01 = CSA

03 = 0 - 10 MILS pk-pk or 01 = 5A EPOXY 02 = BASEEFA

04 = 0 - 15 MILS pk-pk 3300 8mm Prox SEALED 03 = FM

05 = 0 - 20 MILS pk-pk 200 mV/mil 04 = CITY OF LA

11 = 0 - 100 Atm pk-pk 02 = 5A HERMETI-

12 = 0 - 150 Atm pk-pk 02 = 3000 Prox CALLY SEALED

13 = 0 - 200 Atm pk-pk 200 mV/mil

14 = 0 - 400 Atm pk-pk 03 = QUAD RELAYS

15 = 0 - 500 Aim pk-pk EPOXY SEALED

BARRIERS USED TRIP MULTIPLY

- EXX - FXX

00 = NONE 01 = EXTERNAL 02 = INTERNAL

00 = NONE 01 = 2X TRIP MULTIPLY 02 = 3X TRIP MULTIPLY

NOTE:

Verify that the transducer power supply level (-Vt) is appropriate for the transducer beingused. Both the Power Supply and the System Monitor must be programmed to supply thecorrect voltage. The 3000 transducer requires a supply voltage of -18 Vdc, while the3300 and 7200 transducers require -24 Vdc.

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Section 4 - PROGRAMMABLE OPTIONS

5

4. PROGRAMMABLE OPTIONS

PROGRAMMABLE OPTIONS

• ENABLED DANGER MODE • LATCHING *FIRST OUT

• DISABLED

• NON-LATCHING

• 1 SECOND • +4 TO+20 mA *

• 1 SECOND • +1 TO +5 Vdc

• 3 SECONDS *

RECORDER OUTPUTS

• 0 TO -10 Vdc

ALARM DELAYS

• 6 SECONDS

•

240-240,000RPM * DANGER VOTING•

OR VOTING FORRELAY DRIVE *FREQUENCYRESPONSE

• 60-36,000 RPM • AND VOTING FORRELAY

DRIVE •

ALERT MODE • LATCHING * DANGER BYPASS • ENABLE

• NON- • DISABLE *

• STANDARD CONFIGURATION

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5. OK

NOTE: Each channel in the system controls the OK relay. Therefore, any channel can cause anot OK relay condition (Deenergized relay).

LED DISPLAYA B

CONDITION OK RELAY DRIVE *

● OK ● CHANNEL A AND B INOPERATING RANGE.

ON

○ OK ●

● OK ○

RESPECTIVE CHANNEL A OR BTRANSDUCER IN NOT OK

CONDITION, OR BYPASSED. *

OFF *

○ OK ○

MONITOR IN SELF TEST, ORBOTH TRANSDUCERS NOT OK

OR BYPASSED. *

OFF *

OK

FLASHING AT 5 Hz = ERRORENCOUNTERED DURING CYCLICTEST. READ ERROR MESSAGE.(SEE SECTION 14).

ON

OK

OK ●

FLASHING AT 1 Hz =TRANSDUCER HAS BEEN NOTOK SINCE LAST RESET.

ON

• NOT OK CHANNEL CAN BE BYPASSED TO RESTORE RELAY OK CONDITIONS.

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Section 6 - BYPASS

7

6. BYPASS

LED DISPLAYA B

CONDITION

● BYPASS ●

• MONITOR IN DANGER BYPASS MODE• SYSTEM IN POWER UP MODE• USER INVOKED SELF TEST IN PROGRESS• TIMED OK CHANNEL DEFEAT

• BOTH CHANNELS BYPASSED

○ BYPASS ●

● BYPASS ○

• CHANNEL A OR B BYPASSED

• TIMED OK CHANNEL DEFEAT

BYPASS

BYPASS ●

● BYPASS

TRIP MULTIPLY ACTIVATED. FLASHING OVERRIDDEN BY:• CHANNEL BYPASS

• TIMED OK CHANNEL DEFEAT

• DANGER BYPASS

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7. ALERT

A LED DISPLAY B CONDITION ALERT RELAYDRIVE

● ALERT ○ ON

○ ALERT ● ON

●

ALERT ●

EITHER CHANNEL A OR B (OR BOTH) HASEXCEEDED ALERT ALARM LEVEL. (SEESECTION 12).

ON

○ ALERT ON

ALERT ○

FIRST OUT CONDITION FOR RESPECTIVE AOR B CHANNEL THAT HAS EXCEEDEDALARM LEVEL. TWO CHANNELS MAYINDICATE FIRST OUT FOLLOWING SELFTEST.*

ON

* FIRST OUT RESOLUTION IS BETTER THAN 50 MILLISECONDS. IF TWO ALARMS OCCUR WITHIN 50MILLISECONDS OF EACH OTHER, THEY COULD CAUSE BOTH LEDS TO FLASH.

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Section 8 - DANGER

9

8. DANGER

LED DISPLAY AB CONDITION DANGERRELAY DRIVE

ORVOTING

ANDVOTING*

● DANGER ○ ON OFF

○ DANGER ● ON OFF

● DANGER ●

EITHER CHANNEL A OR B (OR BOTH) HASEXCEEDED DANGER ALARM LEVEL. (SEESECTION 13).

ON ON

○ DANGER ON OFF

DANGER ○

FIRST OUT CONDITION FOR RESPECTIVEA OR B CHANNEL THAT HAS EXCEEDEDDANGER ALARM LEVEL. TWOCHANNELS MAY INDICATE FIRST OUTFOLLOWING SELF TEST.**

ON OFF

* IF EITHER CHANNEL IS BYPASSED, DANGER RELAY IS ACTIVATED IF NONBYPASSED CHANNEL IS INALARM.

** FIRST OUT RESOLUTION IS BETTER THAN 50 MILLISECONDS. IF TWO ALARMS OCCUR WITHIN 50MILLISECONDS OR LESS OF EACH OTHER THEY COULD CAUSE BOTH LEDS TO FLASH.

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9. MONITOR RANGES3300/15 – AXX – BXX – CXX – DXX – EXX - FXX

A: FULL SCALE RANGE

01 = 0-3 MILS pk-pk

02 = 0-5 MILS pk-pk

03 = 0-10 MILS pk-pk

04= 0-15 MILS pk-pk

05 = 0-20 MILS pk-pk

11 = 0-100 MICROMETRES pk-pk



14= 0-400 MICROMETRES pk —pk

15= 0-500 MICROMETRES pk-pk

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Section 10 - READ CHANNEL VIBRATION

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10. READ CHANNEL VIBRATION

Monitor continuously indicates measured vibration values for Channels A and B.

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11. READ GAP VOLTAGE1. Press GAP switch and read gap voltage for both Channel A and B on meter usingcenter meter scale.

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Section 12 - READ ALERT SETPOINT LEVELS

13

12. READ ALERT SETPOINT LEVELS1. Press ALERT switch and read alert setpoints (for both Channels A and B) on meterscale.

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13. READ DANGER SETPOINT LEVELS1. Press DANGER switch and read danger setpoints (for both Channels A and B) on meterscale.

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Section 14 - SELF TEST

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14. SELF TEST

The monitor has three levels of self test:

Self Test Performed

Power-up When the monitor is turned on.

Cyclic Continuous during monitoring operations.

When you initiate the self test by temporarilyUser-invoked shorting the self test pins.

When the monitor detects an error, it displays an error condition in

one of two ways depending on whether the error is active or stored.An active error is an error that currently exists. A stored errorindicates that a storable error has occurred since the last time errorswere cleared but that this error is no longer active.

If the monitor detects an active error, the following events occur:

• Monitoring stops until the problem is resolved.

• The error code is stored in memory and flashes on the LCD

bargraph.

• The BYPASS LEDs come on.

• The OK LEDs flash at 5 Hz.

If the monitor no longer detects an active error and a stored errorexists, the following events occur:

• Monitoring resumes

• If the OK LED would otherwise be on, the OK LEDs flash at 5

Hz to indicate that an error code has been stored.

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Recall stored error codes by using the User-invoked self test. Use the following steps to run theUser-invoked self test, read error codes, andclear stored

CAUTION

Machine protection provided bythis monitor will be lost for the

duration of the self test.

NOTE: User -invoked self test cannot be initiated ifany error is active. Refer to the Error Codessection for more information on the error codes.

STEP 1 - Initiate the User-invoked self test byshorting the two self test pins (ST) with a screw-driver.

All the LEDs and LCD elements will come on for 5seconds.

If an active or stored error is present at the end of the self test, theBYPASS LEDs remain on, the OK LEDs flash at 5 Hz, and the first errorcode flashes at 2 Hz.

The error code is given by the number of flashing segments in onecolumn of the bargraph. For example, the monitor to the right isindicating error code number 6.

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Section 14 - SELF TEST

17

STEP 2 - Read any other stored error codes by pressing and holding the ALERT switch for approximatelyone second.

For example, the display to the far right contains a

second stored error code - number 10.

When you reach the end of the error codelist, the LCD bargraph comes on at full scalerange and the OK LEDs turn off.

You may read through the list again bycontinuing to press the ALERT switch.

STEP 3 - When the LCD bargraph is at full scale,clear error codes from memory by pressing and

holding the DANGER switch forapproximately one second.

After you clear the error codes (and after theTimed OK/Channel Defeat period elapses), the OKLEDs will flash at 1 Hz to indicate that the monitorhas been not OK.

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When you press the RESET switch on the SystemMonitor, the OK LEDs will stop flashing.

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Section 15 - ERROR CODES

19

15. ERROR CODESRefer to the Self Test section for information about displaying and clearing stored errorcodes.

ERROR CODE

DESCRIPTION EXPLANATION/RECOVERY

2 ROM checksum failed. Tested at Power-up and User-invoked self test.This error is displayed on the front panel, but isnot stored in memory. Install your spare monitoror contact your local Bently Nevada office forservice.

3 Nonrecoverable EEPROM failure. Tested only at Cyclic self test. Install your sparemonitor or contact your local Bently Nevadaoffice for service.

4 EEPROM failure. May be corrected by adjusting alarm setpoints inthe monitor. If setpoint adjustment fails tocorrect this error, install your spare monitor orcontact your local Bently Nevada office forservice.

5 +7.5V/-VT node out of tolerance.

6 +VRH node out of tolerance.

7 +5V node out of tolerance.

8 MVREF node out of tolerance.

9 +7.5V node out of tolerance.

10 +VRL node out of tolerance.

11 MVREF/-6.5V node out of

tolerance.

12 +5V/-7.5V node out of tolerance.

13 Clock OK voltage out of tolerance.

Tested cyclically. If it is a stored error, recall andclear the error codes as described in the Self Test section.

If it is an active error, replace the monitor with aspare or contact your local Bently Nevada officefor service.

14 RAM failure.

17 COP watchdog not configured.

Tested only at Power-up and User-invoked selftest. These errors are displayed on the front

panel but not stored in memory. Install yourspare monitor or contact your local BentlyNevada office for service.

NOTE: If the monitor experiences recurring stored errors contact your local Bently Nevadaoffice for service.

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16. INDEX

A

Alert .......................................................................................................................................................................................... 8

B

Bypass ...................................................................................................................................................................................... 7

D

Danger ..................................................................................................................................................................................... 9

Dual Vibration Monitor System ...................................................................................................................................... 1

M

Monitor Functions ................................................................................................................................................................ 2

Monitor Options .................................................................................................................................................................... 4 Monitor Ranges .....................................................................................................................................................................10,29

O

Options

Monitor ......................................................................................................................................................................... 4

Programmable ............................................................................................................................................................ 5

P

Programmable Options ..................................................................................................................................................... 5

R

Read Alert Set Point Levels ..............................................................................................................................................13

Read Channel Vibration .....................................................................................................................................................11

Read Danger Set Point Levels .........................................................................................................................................14

Read Probe Gap Voltage ...................................................................................................................................................12

S

Self Test .................................................................................................................................................................................... 15

Documents

0176G1