Campbell Scientific HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Manual (Page 23)

Model HFP01SC Self-Calibrating Soil Heat Flux Plate
6.3.4 Example 4. Sample CR10X Program Using External Power and
Relay
TABLE 6-6 provides the sensor wiring for Example 4, and TABLE 6-7
provides the datalogger wiring for Example 4.
TABLE 6-6. Sensor Wiring for Example 4
Description Color CR10X A21REL-12
Sensor Signal #1 White 1H
Sensor Signal #2 White 1L
Sensor Signal #3 White 2H
Sensor Signal #4 White 2L
Sensor Signal #5 White 3H
Sensor Signal #6 White 3L
All Signal References Green AG
All Shields Clear G
Heater Resistor Signal #1 Yellow 4H
Heater Resistor Signal #2 Yellow 4L
Heater Resistor Signal #3 Yellow 5H
Heater Resistor Signal #4 Yellow 5L
Heater Resistor Signal #5 Yellow 6H
Heater Resistor Signal #6 Yellow 6L
All Heater Resistor Signal References Purple AG
All Shields Clear G
Sensor Power #1 Red REL 1 NO
Sensor Power #2 Red REL 1 NO
Sensor Power #3 Red REL 2 NO
Sensor Power #4 Red REL 2 NO
Sensor Power #5 Red REL 3 NO
Sensor Power #6 Red REL 3 NO
All Power Reference Black G
TABLE 6-7. Datalogger-to-A21REL-12 Wiring for Example 4
Description CR10X A21REL-12
Power 12V + 12V
Power Reference G GROUND
Control C8 CTRL 1
Control jumper from CTRL 2 to CTRL 1
Control jumper from CTRL 3 to CTRL 2
Power jumper from REL 1 COM to +12V
Power jumper from REL 2 COM to REL 1 COM
Power jumper for REL 3 COM to REL 2 COM
17