Model HFP01 Soil Heat Flux Plate
6
To protect sensor cables from damage caused by rodents,
Campbell Scientific recommends burying them inside of flexible
electrical tubing.
7.2 Wiring
Wire functions are shown in FIGURE
provides the data
logger connections for both single-ended and differential measurements.
Typically, the differential measurements are used.
FIGURE 7-2. HFP01 plate to data logger connections
TABLE 7-1. Wire Color, Function, and Data Logger Connections
Wire Color
Wire Function
Data Logger
Single-Ended Measurement
Data Logger
Differential Measurement
White
Signal
U
configured for single-ended
analog input
1
,
SE
(single-ended,
analog input)
U
configured for differential analog
input high
1
,
DIFF
H
(differential
high, analog input)
Green
Signal Reference
⏚
(analog ground)
U
configured for differential analog
input low
1
,
DIFF
L
(differential
low, analog input)
Clear
Shield
⏚
(analog ground)
⏚
(analog ground)
1
U
terminals are automatically configured by the measurement instruction.
NOTE
Signal (White)
Signal Reference (Green)
Shield (Clear)
