MAX100/200-OPERATION Rev200813
74
Valve Position Calibration (for MAX200 Fusion models only)
The valve position calibration determines the point where the valve is fully open or fully closed. This process will
automatically determine these points by running the valve to fully open position until it hits the mechanical stop, and then
rotating back to the fully closed position until it reaches mechanical stop. This calibration must be done after installation,
when the actuator has been replaced, or in any case when valve doesn't fully close or fully open, or when the valve polarity
setting has been changed.
Valve Calibration
1. Select the MAINTENANCE item in the main menu. Press the
SELECT
button to access this menu.
2. Select the 'VALVE CALIBRATION.' submenu item. Enter this submenu using the
SELECT
button.
3. A warning dialog box will appear. Press the
SELECT
button to proceed with the valve calibration.
NOTE: The valve will move to fully open and fully closed positions during the calibration. When the calibration
is finished, the confirmation dialog box will appear to show this action was successful.
Depending on the valve type and size, the calibration process might take up to one minute.
Water Pressure Calibration (for MAX200 Fusion models only)
Pressure calibration is not typically required; the unit is normally factory calibrated. If the pressure reading is
substantially different from the actual pressure, please confirm that the sensor is not defective. In the event the pressure
reading is off by a small amount, the unit can be recalibrated. Before this process begins, connect an external pressure
meter to the discharge controlled by the valve under calibration.
Pressure Calibration
1. Select the MAINTENANCE item in the main menu. Press the
SELECT
button to access this menu.
2. Select the 'PRESS. CALIBRATION.' submenu item. Enter this submenu using the
SELECT
button.
3. A warning dialog box will appear. Press the
SELECT
button to proceed with the pressure calibration.
NOTE: Starting calibration process will erase all existing calibration data. Pressure calibration requires
two calibration points.
4. When the pressure calibration screen is displayed, ensure that 'OPERATE VALVE' item is selected. If not, then
press the
INCREASE
or
DECREASE
button until this item is selected.
5. Press the
SELECT
button to open the valve. Make sure the system is not pressurized. Reference pressure meter
should read 0.
6. Press the
INCREASE
or
DECREASE
button to move to the pressure value field. If the value in the field is other
than 0, use the
SELECT
button to increase the digit at the cursor position. Use the
ON/OFF
button to decrease the
digit at the cursor position. Use the
INCREASE
or
DECREASE
button to move the cursor to the next position.
If the value is 0, move on to step 7.