IPS Controllers M720 - Page 20

19
M720 pH/ORP Controller Owner’s Manual
4. ORP standby
Note: While in this mode, the yellow ORP standby LED will
illuminate, both the pH and ORP digital displays will show
dashes, and all Auto funcons will be disabled. When a funcon
pushbuon is pressed, the digital display will show the funcon.
a. Set Level
1. Default: 650 mV
2. Selectable range: 400 mV to 900 mV (in 5 mV
increments)
b. Dose Time
1. Default: 10 second ORP feed relay energized and 5
minutes ORP feed relay de-energized (med Dose
Time). In the med dose cycle mode, the dose LED will
ash while dosing, and will illuminate steadily during
the delay poron of the med cycle. In connuous dose
mode, the dose LED will ash while dosing.
2. Selectable range: OFF, CON (connuous), and Timed
(0.6 to 900 seconds ON and 5 minutes OFF)
3. Delay Time
i. Default is a 5-minute delay aer dosing
ii. Selectable range 1 – 99 minutes
c. Over Timer
1. Default: 60 Cycles med feed, 60 minutes connuous
feed
2. Selectable range in med feed: OFF, 20 – 100 feed
cycles. Selectable range in connuous feed: OFF, 20 –
180 minutes.
3. Changing Over Timer seng
i. Press Mode buon to enter ORP standby