Campbell TempVue 10, Руководство по эксплуатации продукта

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Connections to Campbell Scientific data loggers are provided in Table 7-1 (p. 10). When Short Cut
software is used to create the data logger program, wire the sensor to the terminals shown on
the wiring diagram created by
Short Cut .
Table 7-1: Wire color, function, and data logger connection for 4-wire configuration
Color Wire function Data logger connection
Yellow
RTD signal/–
RTD DIFF H (differential high, analog-voltage input) or CR6 U
terminal configured for differential high analog input
1
Blue RTD signal ref
DIFF L (differential low, analog-voltage input) or CR6 U terminal
configured for differential low analog input
1
Orange Sense signal
DIFF H (differential high, analog-voltage input) or CR6 U
terminal configured for differential high analog input
1
Purple
Sense signal
ref DIFF L (differential low, analog-voltage input) or CR6 U terminal
configured for differential low analog input
1
Brown
Volt
RTD VX (voltage excitation), EX (voltage excitation), or CR6 U
terminal configured for voltage excitation
1
Black
Excitation
reference
⏚ (analog ground)
Clear Shield G ⏚ (earth ground)
1
U terminals are automatically configured by the measurement instruction.
The white and gray wires are not used.
7.1.2 2-wire configuration
For this configuration, the TempVue 10 probe requires one single-ended terminal and one
voltage excitation terminal (one excitation terminal can be used for two probes). The 2-wire PRT
measurement is a secondary wiring option, with decreased measurement quality. This setup
reduces the number of terminals needed on the data logger; however, for best measurement
practice use the 4-wire set up.
The calibration supplied by Campbell Scientific is valid only for the 4-wire set up. It is
recommended to obtain a new TempVue 10 calibration offset from a third-party accredited
laboratory to use in the data logger program. Additionally, it is important to use the correct AC
noise rejection or signal integration frequency in the CRBasic program measurement parameter.
Connections to Campbell Scientific data loggers are given in Table 7-2 (p. 11).
TempVue 10 PT-100 Class A, Precision Air Temperature Sensor
10