IPS Controllers M820 User Manual

22
M820 pH/Dual ORP Controller Owner’s Manual
a. Set Level
1. Default: 640 mV
2. Selectable range: 400 mV to 890 mV (in 5 mV
increments), cannot be set for less than 10 mV below
the ORP1 set level.
b. Dose Time
1. Default: OFF. In the med dose cycle mode, the dose
LED will ash while dosing and illuminate steadily during
the delay poron of the med cycle. In connuous dose
mode, the dose LED will ash while dosing, and dosing
will connue unl ORP is 10 mV above Set Level.
2. Selectable range: OFF, CON (connuous), and Timed
(10 to 900 seconds ON)
c. Delay Time
1. Default: OFF. Delay me of 5 minutes between feed
cycles (med feed only). Aer dose me, the controller
will wait (delay) for the specied minutes before
checking the current level and dosing again if necessary.
2. Selectable range: 1 - 99 minutes.
d. Over Timer
1. Default: ON. The Over Timer does not automacally
reset. It must be reset by using the mode buon to
cycle out of auto and then back to auto mode.
2. The Over Timer is interlocked with the Dose Time
selecon.
3. If the Dose Time is set to a med cycle, the Over Timer
will count med feed cycles. Every me the set level is
reached the Over Timer will reset the count. If the set
(default is 60 cycles) Over Timer cycle is reached, the
ORP2 output relay will de-energize. ORP2 will not ash
ORP digital display if ORP2 overfeed occurs).

IPS Controllers M820 Specifications

General

Brand	IPS Controllers
Model	M820
Category	Controller
Language	English