IPS Controllers M720 - Page 19

iv. Use Up/Down buon to increase/decrease pH High
Alert
v. When nished, press Mode buon to connue
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.
3. Changing Low Alert seng
i. Press Mode buon to enter pH standby
ii. Press and hold Mode buon and then press Set Level
buon (red pH alert LED will come on) release both
buons. You are now in Set Alerts mode.
iii. Press Dose Time buon to display current Low Alert
iv. Use Up/Down buon to increase/decrease pH Low
Alert
v. When nished, press Mode buon to connue
3. pH Cal
1. Allows pH reading to be adjusted .9 pH up or .9 pH
down from actual sensor reading.
2. Default: 0 pH adjustment
3. To clear all calibraon that may have been entered:
i. Press Mode buon to enter pH standby
ii. Press and hold Mode unl the controller turns o.
iii. Press and hold the pH Cal buon and then the Mode
buon unl the controller turns on. Release both
buons.
iv. Press the Mode buon to connue back to Auto to
see the reading without calibraon.
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M720 pH/ORP Controller Owner’s Manual