Electrical Descriptions - IPS Controllers M790 Owner's Manual

M790 pH/ORP Controller Owner's Manual
F. Electrical Descriptions
1. Power
a. 120 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: Overfeed Timer ON/OFF (default: ON)
Note: Turning off the Overfeed Timer will void any NSF
Certification.
Figure 3: Dipswitches
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