IPS Controllers M920 User Manual

M920 & M920W pH/Dual ORP Controller Owner’s Manual
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Figure 6: Hidden buon
7. Hidden Features
a. The Up/Down buons can be locked out to prevent
unauthorized changes to the sengs. There is a hidden buon
behind the “0” in IPS-M920 on the front overlay. Place the M920
into standby mode and then press and hold the hidden buon
for 2 seconds, unl the display indicates “Loc On” and the Up/
Down keys do not operate. All other feature buons will work to
display current sengs. Turn the lock o by holding the hidden
buon down for 2 seconds unl the display indicates “Loc O”.
b. The M920 can be forced to manually dose pH, ORP1, or ORP2
by placing the M920 into the standby mode that is desired (pH,
ORP1, ORP2), and then holding down the Dose Time buon and
pressing the Delay Time buon. The M920 will dose for the me
set in the dose me seng (med-feed only).
8. Factory defaults
To return the controller to the factory defaults:
a. Place the controller in Standby Mode.
b. Turn o the controller by holding down the Mode buon.
c. Press and hold both the Set Level and pH Cal pushbuons, and
then press the Mode buon.
d. The pH display will show “Ld” and the soware version number
will display in the ORP window.
e. The controller will be returned to the factory default funcons
and be placed in the test mode.
f. Return the controller to full operaon by again turning o the
controller with the Mode buon. Then turn the controller on
again by pressing the Mode buon. Note: Failure to complete
thisaconwillleavethecontrollerinthetestmode.

IPS Controllers M920 Specifications

General

Brand	IPS Controllers
Model	M920
Category	Controller
Language	English