IPS Controllers M820 - Controller Panel Descriptions; Digital Displays and Function LEDs; Mode and Arrow Button Controls

E. Controller Panel Descrip ons
1. Digital Displays and Func on LEDs
a. pH
1. Alert (High/Low) - red LED
2. Dose - green LED
3. Flashing LEDs - Over Timer Alert
b. ORP
1. Alert (High/Low) - red LED
2. Dose 1 - yellow LED
3. Dose 2 - yellow LED
4. Flashing LEDs - Over Timer Alert
Figure 2: M820 Controller Components Connec ons
8
M820 pH/Dual ORP Controller Owner’s Manual
Electrical
Connec�ons
Flow Cell
Connec�ons
digital display
pushbutton
LEDs
Controller Communication
pH
pH
ORP
AC
Power
ORP2
ORP1
Flow
Switch
Accessory
Temp
Sensor