Elkhart Brass Unibody Valve - Manual (Page 64)

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ELKHART BRASS MANUFACTURING COMPANY, INC
3. Pressure Calibration (Code 3230)
To calibrate the pressure display use a calibrated pressure reference. Two pressure levels are needed to
calibrate. (Use 0 for the first.)
Note: The valve must be closed and the red CLOSED LED must be on to start calibration.
1. Enter code 3230. (Refer to Programming section on how to enter a code.)
Result: The digital display will show Pt1 (the pressure program is ready to set the first calibration point).
2. The OPEN and CLOSE buttons are active. Press the CLOSE button and confirm the pressure on the down
stream side of the valve is 0.
3. Press and release the PRESET (CAF SELECT for UICS2) button.
Result: The display will show 0. Pt1 is now set at 0 PSI.
4. Press and release the PRESET (CAF SELECT for UICS2) button again.
Result: The display will show Pt2 (for the next calibration point).
5. Press the OPEN button to open the valve. Bring the pressure up to the desired calibration point. Ensure
a constant pressure is maintained.
6. Press the PRESET (CAF SELECT for UICS2) button again.
Result: The display will show 0 flashing. Calibration point Pt1 is ready to be set.
7. Adjust the digital display to match the reference pressure.
Use the CLOSE button to select the digit to change. The digit will flash.
Use the OPEN button to change the value of the flashing digit.
8. To exit the calibration program, press and hold the PRESET (CAF SELECT for UICS2) button.
Result: The display will show 4 dashes.
9. Release the PRESET (CAF SELECT for UICS2) button to exit the calibration program:
Result: The display will show pressure reading.
Error Code E204
If error code E204 is shown it means that there is no signal from the flow sensor. This code will only be
displayed when in a calibration mode. Troubleshoot the sensor and the associated wiring.
4. Flow Calibration, Single Point (Code 3210)
Select a flow rate to calibrate that is within the most commonly used flow range for the discharge.
Set up a reference flowmeter on the discharge.
Note: The valve must be closed and the red CLOSED LED must be on to start calibration of the valve
control.
1. Enter code 3210. Refer to Programming section on how to enter a code.
Result: The flow display will show Pt.
2. Press the OPEN and CLOSE buttons to adjust the flow rate. Ensure a constant pressure is maintained to
obtain a steady flow rate on the reference flowmeter.
3. Press the PRESET button.
Result: The display will show a flow rate with the last digit flashing.
4. Adjust the displayed flow rate to match the reference flow rate.
– Use the CLOSE button to select the digit to change. The digit will flash.
– Use the OPEN button to change the value of the flashing digit.
5. To exit the calibration program, press and hold the PRESET button.
Result: The display will show 4 dashes.
6. Release the PRESET button to exit the calibration program.
Result: The display will show flow reading.
7. Vary the water flow through the discharge and ensure the displayed flow rate matches the reference.
If there are differences at other flow rates, the multiple point flow calibration may be necessary.