Campbell Scientific 4WPB100, 4WPB1K PRT Terminal Input Modules - Manual (Page 5)

1
4WPB100, 4WPB1K PRT Bridge
Terminal Input Modules
1. Function
Terminal input modules connect directly to the datalogger's input terminals to
provide completion resistors for resistive bridge measurements, voltage
dividers, and precision current shunts. The 4WPB100 and 4WPB1K are used
to provide completion resistors for 4 wire half bridge measurements of 100
Ohm and 1 killohm Platinum Resistance Thermometer (PRT), respectively.
H
L
AG
H
L
AG
H
L
G
FIGURE 1-1. Terminal Input Module
2. Specifications
Current limiting 10 kOhm Resistor
Tolerance @ 25 °C ±5%
Power rating 0.25 W
Completion Resistor
Tolerance @ 25 °C ±0.01%
Temperature coefficient
0-60 °C
-55-125 °C
4 ppm/°C
8 ppm/°C
Power rating 0.25 W