7. Installation
If you are programming your data logger with
Short Cut
, skip
(p. 9) and
Short Cut
does this work for you. See
(p. 4), for a
Short Cut
tutorial.
This section discusses the following.
7.4 Installation in a radiation shield
7.1 Wiring
The TempVue 10 includes a completion resistor integrated in the sensor housing, allowing the
sensor to directly connect to the data logger without using a bridge module, such as the
4WPB100 or 3WHB10K. Campbell Scientific offers extension cables in lengths up to 10 m, which
connect to the TempVue 10 M12 connector. Contact Campbell Scientific if a longer cable is
required.
The TempVue 10 can be wired as a 2- or 4-wire configuration. The 4-wire PRT measurement is
the preferred wiring choice, as this provides the highest measurement accuracy and ensures the
best quality signal. All TempVue 10 sensors have been calibrated using a 4-wire configuration.
Where possible, Campbell Scientific strongly recommends using the 4-wire set up. The
specifications are all based on 4-wire operation and the TempVue 10 will meet or exceed WMO
recommendations in this configuration. The 2-wire configuration requires fewer terminals, but
reduces the measurement quality and increases error.
Data logger connections for these configurations are provided in the following sections.
7.1.1 4-wire configuration
For this configuration, the TempVue 10 probe requires two consecutive differential terminals and
one voltage excitation terminal (one excitation terminal can be used for two probes). If the yellow
and blue wires connect to Diff 1H and 1L, respectively, then the orange and purple wires should
connect to Diff 2H and 2L, respectively.
TempVue 10 PT-100 Class A, Precision Air Temperature Sensor
9
