IPS Controllers M720 - Electrical Descripti Ons

F. Electrical Descrip ons
1. Power
a. 110/230 VAC, 50-60 Hz, 3-wire grounded NEMA 5 power
cord. GFCI source required.
2. Dip Switches (1-4)
a. 1: pH/ORP interlock (default: OFF)
No ORP feed if pH is feeding (ON).
b. 2: pH/ORP alert interlock (default: ON)
No ORP if pH is in alert mode (ON).
c. 3: Acid/Base default acid (default: OFF)
1. Feed base chemical when pH level falls below set point.
(ON)
2. Feed acid chemical when pH above set point. (OFF)
d. 4: Over Timer ON/OFF (default: ON)
Note: Turning o the Over Timer will void any NSF Cer  -
ca on.
Figure 3: Dipswitches
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M720 pH/ORP Controller Owner’s Manual