System Components - IPS Controllers M920 Owner's Manual

M920 & M920W pH/Dual ORP Controller Owner's Manual
C. System Components
1. IPS M920 pH/Dual ORP Controller
a. Allows automatic monitoring of water sanitization and pH
balance through a simple, user-friendly interface, resulting in
easier management of water balance in swimming pools, spas,
or circulating water environments.
b. Can be easily installed into your existing pool environment and
equipment, or can be customized to your needs.
c. Monitors and displays the pH and ORP levels using LEDs and
digital readouts on the front panel. If the temperature sensor is
installed, the M920 will monitor temperature and display on the
front panel when in Temp mode. Additionally. it will monitor up
to two chemical tanks equipped with level switches and displays
status using LEDs on the front panel.
There are six separate function buttons that allow simple
pushbutton control of these individual parameters:
1. Set Level – ORP or pH level to be maintained,
2. Dose Time – Timed or continuous feed modes,
3. Delay Time – Delay time between feed cycles,
4. Over Timer – Maximum feed cycles or time allowed,
5. High Alert – Maximum level of ORP or pH allowed,
6. Low Alert – Minimum level of ORP or pH allowed,
7. pH Cal – pH calibration for variation in pH sensors.
d. When the pH level rises above (acid feed) or falls below (base
feed) the set level, the controller will activate the chemical
feeder for the set dose time. Then the set delay time will occur.
This dose and delay time will occur until the set level is reached.
e. When the ORP (sanitizer) level reaches the set level, the
controller will activate the chemical feeder for the set dose time.
Then the set delay time will occur. This dose and delay time will
occur until the set level is reached.
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