6
FIGURE 4: GA-180 Controller Electronics
Date: July 2016
Dwg. No. GA-180-CONTROLLER
GA-180 CONTROLLER
ELECTRONICS
MB220
Display Board
Battery
(CAUTION:
REMOVE BATTERY
BEFORE SHIPPING)
MB141 (CB-THERM)
Thermocouple Board
MB108 (CB-8RELAY)
Eight Relay Board
AC Power
Terminal Block
Power Supply Board
MB122 (CB-2X2MA)
Two In, Two Out Board
MB123 (CB-2RELAY)
Two Relay Board
Photo of a GA-180 unit configured for two sensors with a battery backup.
Some other configuration examples are summarized below.
Up To 2 Sensors, No Battery, No Thermocouple
2
No
No
1
1
1
Up To 4 Sensors, No Battery, No Thermocouple
4
No
No
1
1
2
Up To 4 Sensors, With Battery, No Thermocouple
4
Yes
No
1
1
2
1
Up To 4 Sensors, No Battery, With Thermocouple
4
No
Yes
1
1
2
1
Up
To
2
Sensors,
With
Battery,
With
Thermocouple
2
Yes
Yes
1 1 1 1 1
MB101 (CB-B
AT
)
Batter
y Boar
d
MB141 (CB-THERM)
Thermocouple Boar
d
MB122 (CB-2X2MA)
Tw
o In,
T
w
o Out Boar
d
MB123 (CB-2RELA
Y)
Tw
o Rela
y Boar
d
MB108 (CB-8RELA
Y)
Eight Rela
y Boar
d
Maxim
um Sensor
s
Batter
y?
Thermocouple?
EXAMPLE
TABLE 1: Example
Controller Configurations
