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M920 & M920W pH/Dual ORP Controller Owner’s Manual

g. While sll in the pH standby mode, press the pH Cal pushbuon

to calibrate the reading to the value observed through the

manual tesng of the water. Note:Alwayscalibrateusingwater

fromthesampleportoftheowcell.

h. Press the Mode pushbuon momentarily to place the controller

in ORP1 standby mode. The yellow ORP1 standby LED will

illuminate. Select the desired ORP1 set level and dose me

(connuous or med). Please call us at 877-693-6903 for

assistance with inial sengs.

i. Press the Mode pushbuon momentarily unl 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,

then the ORP set level should be the same as the current ORP

readingwheninAutoMode.

2. Shutdown

Note:EachmetheModepushbuonismomentarilypressed,the

modewillcyclefromAutotopHtoORP1toORP2,Temp,andthen

return to Auto mode.

a. Press the Mode pushbuon 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 pushbuon for 2 seconds unl both

the pH and ORP digital displays read OFF.

c. Release the Mode pushbuon. The M920 controller will turn

o, and the digital displays and funcon LEDs will go blank. The

green Flow LED will be illuminated if water is owing through

the ow cell.

C. Modes and Adjustments

1. Auto

a. This is the normal operaonal mode of the M920 controller.

b. The controller allows full operaon and monitoring of both pH

and ORP levels.

c. No funcon pushbuons are operaonal in this mode.

IPS Controllers M920 User Manual

Questions and Answers: