Low Temperature Thermometer
RT8B
User Guide
6
3.2 Loop Resistance
The maximum allowable loop resistance in the
RT8B
thermometer current loop, for a
given power supply voltage, is illustrated in Fig. 5.
NOTE
The system load resistance includes the cable resistance and the indicator resistance.
Fig. 5 Graph showing load resistance versus power supply voltage
0
5
10
15
20
25
30
35
1000
900
800
700
600
500
400
300
200
100
0
Power Supply Voltage (V)
Maximum Loop R
esistance
(ohms)
