CMC3 ‘Hydromate’Mexico

March 2009

PRODUCT DESCRIPTION• ‘State of the art’ stream gauging computer

• Completely ‘paperless’

• Fan equations easily stored in unit

• Automatic calculation and display of cross-sectional area, mean velocity and discharge

• Data downloaded as a ‘text’ or ‘csv’ file to database in office

• Powered by ‘D’ cell rechargeable batteries (2x1.5V)

• ‘Non’ volatile memory

• Software available in either English or Spanish versions

Mechanical Features

• Weight :1.5kg

• Operating Temperature :-5 degrees C - + 55 degrees C

• Humidity :0 - 100% Waterproof

• Enclosure Rating : IP65

• Waterproof Case Dimensions : 210mm x 170mm x 90mm

Electronic Features

• Internal rechargeable batteries (mains and car charger provided)

• Standard connection of Fan

• RS232 serial port for PC operated configuration

• Graphics LCD and Touchscreen

• Easily upgradeable to new software versions

• ‘Backlighting’ of LCD

Technical Features

• Discharge for up to 30 Sites can be measured

• Up to 30 verticals per site and up to 11 points per vertical

• Measures both instantaneous and average water velocity

• Calibration formulas for up to 32 Fans stored in ‘non-volatile’ memory

• Either ‘Mean’ or Mid-Section’ computation options available

• Fully charged gives 20hrs operation (no backlight) OR 5hrs (with backlight)

Maintenance

• Do NOT charge Hydromate if alkaline batteries are installed

• Do NOT use ballpoint pen on touch screen

• Do NOT use excessive finger pressure on touch screen

• Do NOT charge the Hydromate while it is operating

• ‘Clean the Touchscreen feature’ (when unit is operating)

External Connectors

Fan connection (banana type plugs)

RS232 / Charger port

ON / OFF button

Hydromate Operation

After first press of ON/OFF button, this screen will appear

Screen Customisation

Normal Operation Upside Down View

Left hand operator Right hand operator

Data Entry

Press ‘Change’ - cycle between selections OR - numeric key pad OR

- alphanumeric keypad will appear

Press ‘Save’ move to next screen

Press ‘Escape’ to exit WITHOUT changes saved

Fan Selection

• ‘New Fan’ - displays up to 32 fans that can be customised with calibration data

• Displays factory calibration parameters as per calibration report

• ‘Edit Fan’ - ’ allows customisation of calibration details using ‘change and save’ buttons

• Use cursor buttons, ‘Save’, ‘Change’ and ‘Escape’ buttons as required

Fan Calibration Formulaen < 0.99

V = 0.1374 n + 0.0828

0.99 < n < 8.12

V = 0.1429 n + 0.0774

n > 8.12

V = 0.1510 n + 0.0116

Three Step Formula

Two Step Formula

n < 4.21

V = 0.1374 n + 0.0828

n > 4.21

V = 0.1510 n + 0.0255

Enter Data as:

n < 4.21

V = 0.1374 n + 0.0828

4.21 < n < 4.21

V = 0.1374 n + 0.0828

n > 4.21

V = 0.1510 n + 0.0255

One Step FormulaAll n

V = 0.1374 n - 0.0828

n < 5.00

V = 0.1374 n - 0.0828

5.00 < n < 5.00

V = 0.1374 n - 0.0828

n > 5.00

V = 0.1374 n - 0.0828

Enter Data as:

Start New Gauging

• Select screen contrast, backlight and screen orientation

• Set display units

• Set discharge computation method (mean or mid-section)

• Set clock to local time

• Check battery voltage

• Select site

Enter Gauging Details

Site name : Enter a 20 character alpha-numeric string.Time & Date: Automatically inserted when a discharge commences.Control: None / Checked / See NotesMethod : Wading / Traveller / Cable / Boat / BridgeRods: Top Set / Cable / Bottom SetMeasure: Surface = 0 / Bed = 0

Staff Gauge: Enter gauge height when commencing measurements – optional.

Weight Offset: Offset from weight to centre of Fan

(Measurement point = Measured depth – Weight offset)

Enter Chainage / Sounding Details

Type= WELB / Mid Stream / WERB#Points= Measurement points on this Vertical : 0,1,2,3,4,5,6,9,11Staff: Enter Staff Gauge height – optional.Distance= Distance across the river from reference point to this verticalDry Depth: Where applicableWet Depth= Water Depth at this VerticalWet Angle: Where applicableWet Depth= Water Depth at this Vertical

: Signifies ‘Optional’ = Signifies ‘Used in Mathematical Calculations’

‘Measure’ Function

• During Measurement – instantaneous velocity(averaged over the previous 5 seconds)

• After measurement – average velocity(averaged over entire timing period)

Plot Function

• Allows operator to plot PART or ALL of the gauging section

• Displays ‘panel’ and ‘overall’ discharge for the gauging

Hydromate Interrogator Software

• Allows data to be uploaded from the Hydromate to a PC

• Software loaded by inserting CD into PC

• Fan calibration details can be ‘set’ or ‘retrieved’

• Gauging data can be downloaded in CSV format

Information CodingDischarge Data Name Number Description

Control 14 None

15 Checked

16 See Notes

Method 7 Wading

8 Traveller

9 Cable

10 Boat

11 Bridge

Rods 4 Top Set

5 Cable

6 Bottom Set

Information Coding (cont.)Discharge Data Name Number Description

Side 19 Up Stream

20 Down Stream

Measurement Type 18 Bed = 0

17 Surface = 0

Units 1 m/s (metres per sec)

2 ft/s (feet per second)

3 km/day (km per day)

Discharge Type 1 Mean Section

2 Mid Section

Factor 24 100%

53 90%

23 66% (2/3)

22 50% (1/2)

21 33% (1/3)

Information Coding (cont.)Discharge Data Name Number Description

WE 1 WE-LB

2 Mid Stream

3 WE-RB

DNotes 25 All OK

26 Pylon Close

27 Rock Upstream

28 Debris

29 Change Fan

‘Mean’ Section Method

Q = v1*BF*(d0+d1) + (v1 + v2)*(d1 + d2) b2 + (v2 + v3)*(d2 + d3) b3 + etc 2 2 2 2 2

“The total discharge (Q) is the product of the distance between verticals by the sum of the products of the mean of the depths of two adjacent verticals by the mean of the average velocities

over those two verticals “

NB: Discharge within ‘panels’ near each bank is computed after selecting a ‘Bank Factor’ (BF) on the CMC3

‘Bank Panel’ Velocity FactorApplies to ‘Mean Section’ Method only

The operator will need to make a judgement, based on his/her observation to determine a factor to apply to mean velocity

measured in verticals closest to each bank and enter this factor into the CMC3, in EACH of the Water’s Edge verticals

Factor Comment

90%* Normally applied to bank panels of rectangular or square shape

66% Normally applied to triangular shape bank panels

50% Normally applied to triangular shape bank panels

33% Normally applied to triangular shape bank panels

* Based on calculation from AS3778 Part 3.1 ‘Measurement of water flow in open channels’

‘Mid’ Section Method

Total Discharge = V1d1 ( b1+ b2) + V2d2 ( b2 + b3) + V3d3 ( b3+ b4) etc

2 2 2

“The total discharge is the sum of the products of the average velocity in each vertical by the depth of that

vertical and by the mean width of the two panels adjacent to the vertical “

This method assumes ‘zero’ velocity within ‘panels’ near each bank

Battery Replacement

DO NOT TRY AND CHARGE STANDARD ALKALINE BATTERIES

1. Remove 6 screws on base of Hydromate2. Remove electronics assembly

1. Remove batteries and replace with alkaline type2. Use good quality ‘Energiser’ or ‘Duracell’ brand

Questions?