Preventive Maintenance
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5 Adjust minimum range calibration.
a Connect a Temperature simulator directly to the X7 connector on the Module 2 AVM 3-1
board.
b Apply a simulated temperature of 0 °C (Min)
c Turn the TEMP OFF potentiometer (P1, AVM 3-1) until the screen pointer shows 20.
d Select MIN on the touch screen.
6 Adjust maximum range calibration.
a Apply a simulated temperature of 60 °C (Max)
b Turn the TEMP GAIN potentiometer (P2, AVM 3-1) until the screen pointer shows 80.
c Select MAX on the touch screen.
7 Check both of the valves alternately for correctness and readjust, if necessary.
8 Select SAVE twice on the touch screen to store minimum and maximum values in memory.
9 Select QUIT to return to the main menu.
10 Replace the simulator with the cable originally plugged into X7.
Caution: Pressing QUIT at any time during the procedure will cancel the session’s
settings and reload the previously stored calibration coefficients.
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