Modes And Adjustments - IPS Controllers M790 Owner's Manual

M790 pH/ORP Controller Owner's Manual
h. Press the Mode pushbutton momentarily to place the
controller in ORP standby mode. The yellow ORP standby
LED will illuminate. Select the desired ORP set level and
dose time (continuous or timed).
i. Press the Mode pushbutton momentarily until the red
Auto LED is illuminated. Note: If pH level in the pool is at
desired set level, and chlorine/bromine level is at desired
PPM level in the pool, the ORP set level should be the
same as the current ORP reading when in Auto Mode.
2. Shutdown
Note: Each time the Mode pushbutton is momentarily pressed,
the mode will cycle from Auto to pH Standby to ORP Standby, and
then return to Auto mode.
a. Press the Mode pushbutton momentarily to place the
controller in pH standby mode. The green pH standby LED
will illuminate, and both the pH and ORP digital displays
will show dashes.
b. Press and hold the Mode pushbutton for 2 seconds until
both the pH and ORP digital displays read OFF.
c. Release the Mode pushbutton. The M790 controller will
turn off, and the digital displays and function LEDs will go
blank. The green Flow LED will be illuminated if water is
flowing through the flow cell.
B. Modes and Adjustments
1. Auto
a. This is the normal operational mode of the M790
controller.
b. The controller allows full operation and monitoring of both
pH and ORP levels.
c. No function pushbuttons are operational in this mode.
d. The red function LED next to Auto is illuminated.
e. pH and ORP digital displays monitor the sensor input
levels.
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