Campbell Scientific HC2S3 Temperature and Relative Humidity Probe - Manual (Page 19)

Model HC2S3 Temperature and Relative Humidity Probe
TABLE 7-2. Connections for Differential Measurements
Color Description
CR1000,
CR3000,
CR800,
CR5000,
CR23X
CR10X
CR10,
CR510,
CR500
Brown Temperature
Signal
Differential
Input – H
Differential
Input – H
Jumper to
Yellow
Temperature Signal
Reference
Differential
Input – L
Differential
Input – L
White Relative Humidity Signal Differential
Input – H
Differential
Input – H
Yellow Signal Reference Differential
Input – L
Differential
Input – L
Gray Power Ground G G
Clear Shield G
Green Power 12V/*SW12V 12V/*SW12V
*CR10X Power Control if
using SW 12V
Jumper from
SW 12V
CTRL to
Control Port
7.4 Programming
This section is for users who write their own datalogger
programs. You do not need to read this section if using our Short
Cut Program Generator, or connecting the probe to a prewired
enclosure, RAWS-P station, RAWS-F station, or CWS900
Wireless Sensor Interface. Our prewired enclosures, RAWS-P
stations, and RAWS-F stations include a datalogger program.
Refer to the Wireless Sensor Manual for programming
information if using the probe with a CWS900. NOTE
The temperature and relative humidity signals from the HC2S3 are measured
using either single-ended voltage instructions (VoltSE() in CRBasic or
Instruction 1 in Edlog) or differential voltage instructions (VoltDiff() in
CRBasic or Instruction 2 in Edlog). Differential measurements are
recommended for cables longer than 6.0 m (20 ft) as discussed in Section 7.5.
When the probe is connected to a CS110 Electric Field Meter,
the probe is measured by the CS110's internal CR1000
datalogger module using VoltSE() instructions. Relative
humidity and temperature signals are measured on single-ended
channels 1 and 2, respectively. The 250 µs integration should be
used in the VoltSE() instructions. NOTE
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