1. CMC3 ‘Hydromate’ Mexico March 2009

2. PRODUCT DESCRIPTION ‘State of the art’ stream gauging computer‘State of the art’ stream gauging computer Completely ‘paperless’Completely ‘paperless’ Fan equations easily stored in unitFan equations easily stored in unit Automatic calculation and display of cross-sectional area, mean velocity and dischargeAutomatic calculation and display of cross-sectional area, mean velocity and discharge Data downloaded as a ‘text’ or ‘csv’ file to database in officeData downloaded as a ‘text’ or ‘csv’ file to database in office Powered by ‘D’ cell rechargeable batteries (2x1.5V)Powered by ‘D’ cell rechargeable batteries (2x1.5V) ‘Non’ volatile memory‘Non’ volatile memory Software available in either English or Spanish versionsSoftware available in either English or Spanish versions

3. Mechanical Features Weight:1.5kgWeight:1.5kg Operating Temperature :-5 degrees C - + 55 degrees COperating Temperature :-5 degrees C - + 55 degrees C Humidity:0 - 100% WaterproofHumidity:0 - 100% Waterproof Enclosure Rating: IP65Enclosure Rating: IP65 Waterproof Case Dimensions: 210mm x 170mm x 90mmWaterproof Case Dimensions: 210mm x 170mm x 90mm

4. Electronic Features Internal rechargeable batteries (mains and car charger provided)Internal rechargeable batteries (mains and car charger provided) Standard connection of FanStandard connection of Fan RS232 serial port for PC operated configurationRS232 serial port for PC operated configuration Graphics LCD and TouchscreenGraphics LCD and Touchscreen Easily upgradeable to new software versionsEasily upgradeable to new software versions Backlighting’ of LCD‘Backlighting’ of LCD

5. Technical Features Discharge for up to 30 Sites can be measuredDischarge for up to 30 Sites can be measured Up to 30 verticals per site and up to 11 points per verticalUp to 30 verticals per site and up to 11 points per vertical Measures both instantaneous and average water velocityMeasures both instantaneous and average water velocity Calibration formulas for up to 32 Fans stored in ‘non-volatile’ memoryCalibration formulas for up to 32 Fans stored in ‘non-volatile’ memory Either ‘Mean’ or Mid-Section’ computation options availableEither ‘Mean’ or Mid-Section’ computation options available Fully charged gives 20hrs operation (no backlight) OR 5hrs (with backlight)Fully charged gives 20hrs operation (no backlight) OR 5hrs (with backlight)

6. Maintenance Do NOT charge Hydromate if alkaline batteries are installedDo NOT charge Hydromate if alkaline batteries are installed Do NOT use ballpoint pen on touch screenDo NOT use ballpoint pen on touch screen Do NOT use excessive finger pressure on touch screenDo NOT use excessive finger pressure on touch screen Do NOT charge the Hydromate while it is operatingDo NOT charge the Hydromate while it is operating ‘Clean the Touchscreen feature’ (when unit is operating) ‘Clean the Touchscreen feature’ (when unit is operating)

7. External Connectors Fan connection (banana type plugs) Fan connection (banana type plugs) RS232 / Charger port ON / OFF button

8. Hydromate Operation After first press of ON/OFF button, this screen will appear

9. Screen Customisation Normal Operation Upside Down View Left hand operator Right hand operator

10. Data Entry Press ‘Change’ - cycle between selections OR - numeric key pad OR - numeric key pad OR - alphanumeric keypad will appear - alphanumeric keypad will appear Press ‘Save’ move to next screen Press ‘Escape’ to exit WITHOUT changes saved

11. Fan Selection ‘New Fan’ - displays up to 32 fans that can be customised with calibration data‘New Fan’ - displays up to 32 fans that can be customised with calibration data Displays factory calibration parameters as per calibration reportDisplays factory calibration parameters as per calibration report ‘Edit Fan’ - ’ allows customisation of calibration details using ‘change and save’ buttons‘Edit Fan’ - ’ allows customisation of calibration details using ‘change and save’ buttons Use cursor buttons, ‘Save’, ‘Change’ and ‘Escape’ buttons as requiredUse cursor buttons, ‘Save’, ‘Change’ and ‘Escape’ buttons as required

12. Fan Calibration Formulae n < 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 Formula All 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 Enter Data as :

13. Start New Gauging Select screen contrast, backlight and screen orientationSelect screen contrast, backlight and screen orientation Set display unitsSet display units Set discharge computation method (mean or mid-section)Set discharge computation method (mean or mid-section) Set clock to local timeSet clock to local time Check battery voltageCheck battery voltage Select siteSelect site

14. Enter Gauging Details Site name :Enter a 20 character alpha-numeric string. Time & Date:Automatically inserted when a discharge commences. Control:None / Checked / See Notes Method :Wading / Traveller / Cable / Boat / Bridge Rods:Top Set / Cable / Bottom Set Measure: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)

15. Enter Chainage / Sounding Details Type=WELB / Mid Stream / WERB #Points=Measurement points on this Vertical : 0,1,2,3,4,5,6,9,11 Staff: Enter Staff Gauge height – optional. Distance=Distance across the river from reference point to this vertical Dry Depth: Where applicable Wet Depth=Water Depth at this Vertical Wet Angle:Where applicable Wet Depth=Water Depth at this Vertical : Signifies ‘Optional’ = Signifies ‘Used in Mathematical Calculations’

16. ‘Measure’ Function During Measurement – instantaneous velocityDuring Measurement – instantaneous velocity (averaged over the previous 5 seconds) After measurement – average velocityAfter measurement – average velocity (averaged over entire timing period)

17. Plot Function Allows operator to plot PART or ALL of the gauging sectionAllows operator to plot PART or ALL of the gauging section Displays ‘panel’ and ‘overall’ discharge for the gaugingDisplays ‘panel’ and ‘overall’ discharge for the gauging

18. Hydromate Interrogator Software Allows data to be uploaded from the Hydromate to a PCAllows data to be uploaded from the Hydromate to a PC Software loaded by inserting CD into PCSoftware loaded by inserting CD into PC Fan calibration details can be ‘set’ or ‘retrieved’Fan calibration details can be ‘set’ or ‘retrieved’ Gauging data can be downloaded in CSV formatGauging data can be downloaded in CSV format

19. Information Coding Discharge Data NameNumberDescription Control14None 15Checked 16See Notes Method7Wading 8Traveller 9Cable 10Boat 11Bridge Rods4Top Set 5Cable 6Bottom Set

20. Information Coding (cont.) Discharge Data NameNumberDescription Side19Up Stream 20Down Stream Measurement Type18Bed = 0 17Surface = 0 Units1m/s (metres per sec) 2ft/s (feet per second) 3km/day (km per day) Discharge Type1Mean Section 2Mid Section Factor24100% 5390% 2366% (2/3) 2250% (1/2) 2133% (1/3)

21. Information Coding (cont.) Discharge Data NameNumberDescription WE1WE-LB 2Mid Stream 3WE-RB DNotes25All OK 26Pylon Close 27Rock Upstream 28Debris 29Change Fan

22. ‘Mean’ Section Method Q = v 1 *BF*(d 0+ d 1) + (v 1 + v 2 )*(d 1 + d 2 ) b 2 + (v 2 + v 3 )*(d 2 + d3) b 3 + etc 2 2 2 2 2 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

23. ‘Bank Panel’ Velocity Factor Applies 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 FactorComment 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’

24. ‘Mid’ Section Method Total Discharge = V 1 d 1 ( b 1 + b 2 ) + V 2 d 2 ( b 2 + b 3) + V 3 d 3 ( b 3 + b 4 ) etc 2 2 2 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

25. Battery Replacement DO NOT TRY AND CHARGE STANDARD ALKALINE BATTERIES 1.Remove 6 screws on base of Hydromate 2.Remove electronics assembly 1.Remove batteries and replace with alkaline type 2.Use good quality ‘Energiser’ or ‘Duracell’ brand

26. Questions?