Operating Instructions
Temperature measurement
TER8
Front-flush and low-invasive resistance
thermometers
12.2
Transmitter
Power supply
Output signal
Voltage supply range
8 … 35 V DC
Current output
4 … 20 mA (2-wire)
Reverse polarity
protection
Yes
Shunt resistance
Rs ≤ 680 Ohm
(Vs = 24 V DC)
Rs ≤ (Vs – 8 V) / 0.023 A
Power-up time
< 20 s
Factory settings
Min. output span
25 °C
Output range
0 … 150 °C
Sampling interval
0.5 s
Current limits
Lower: 3.5 mA
Upper: 20.5 mA
Damping
0.0 … 30.0 s
(programmable)
Output at
sensor fault
23 mA
Max. conversion error ± 0.25 °C
Max. output error
± 0.1 % FS (± 0.016 mA)
Damping
0.0 s
Temperature drift
(by ambient)
< ± 0.003 % FS / °C typ.
< ± 0.01 % FS / °C max.
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