IPS Controllers M820 - ORP1 Standby Mode and Set Level

e. High Alert
1. Default: 8.0 pH
2. Selectable range: OFF, 7.5 pH to 8.4 pH (acid feed). A
high alert will occur if the pH level remains above the
High Alert level for 10 connuous minutes, and will
automacally turn o the High Alert when the pH level
falls below the high alert level for 1 connuous minute.
During High Alert, the pH dose output will be disabled,
and by default ORP1 and ORP2 will be disabled (see Dip
Switch #2 sengs).
f. Low Alert
1. Default: 7.0 pH
2. Selectable range: OFF, 6.8 pH to 7.4 pH (acid feed). A
low alert will occur if the pH level remains below the
Low Alert level for 10 connuous minutes, and will
automacally turn o the Low Alert when the pH level
rises above the low alert level for 1 connuous minute.
During Low Alert, the pH dose output will be disabled.
g. pH Cal
1. Use to adjust pH to manually tested value.
2. Maximum increase/decrease is 0.9 pH within the 6.0 to
8.4 display window.
3. ORP1 standby
Note: While in this mode, the yellow ORP1 standby LED will
illuminate, both the pH and ORP digital displays will show dashes,
and all Auto funcons will be disabled. Use the Up or Down
arrow buons to the le to increase or decrease the funcon
value.
a. Set Level
1. Default: 650 mV
2. Selectable range: 400 mV to 900 mV (in 5 mV
increments)
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M820 pH/Dual ORP Controller Owner’s Manual