Campbell Scientific 43347 RTD Temperature Probe and 43502 Aspirated Radiation Shield - Manual (Page 13)

43347 RTD Temperature Probe, 43502 and 41003-5 Radiation Shields
4. Wiring
The 43347 comes in two versions—the “IX” version and the “VX” version.
The “IX” version connects to dataloggers that can issue current excitation
(CR3000, CR5000 only). The “VX” version can connect directly to
dataloggers that only have voltage excitation (e.g., CR10(X), CR800,
CR1000).
43347 probes with the –VX option are wired to the datalogger as described in
Section 4, Wiring. 43347 probes with the –IX option are wired to the CR3000
or CR5000 dataloggers as described in Section 6, 43347-IX Measurement using
Current Excitation.
4.1 43347-VX Temperature Probe Wiring
The 43347-VX probe is configured as a four wire half bridge as shown in
FIGURE 4-1. Each probe requires two differential inputs and one voltage
excitation channel (one excitation channel can be used for two probes). The
black and orange wires connect to the first of two contiguous input channels.
For example, if channels 1 and 2 are used, the black and orange wires connect
to 1H and 1L respectively, and the white and green wires connect to 2H and 2L
respectively.
Connections to Campbell Scientific dataloggers are given in TABLE 4-1.
When Short Cut software is used to create the datalogger program, wire the
sensor to the channels shown on the wiring diagram created by Short Cut.
Shield CLEAR
+ RTD RED
+ Sense WHITE
- Sense GREEN
- RTD BLACK
Reference Low ORANGE
Excitation Return PURPLE
1000 OHM
0.01% 3PPM/C
R
f
10K 1%
EARTH GND
+ RTD
+ SENSE
- SENSE
- RTD
1000 OHM
RTD
43347
Terminals
R
s
Wire Label
Shield G
Volt Excite/+ RTD
Sense Signal
Signal Ref
RTD/Signal/- RTD
RTD Signal Ref
Reference
FIGURE 4-1. 43347-VX Temperature Probe wiring
7