Endress+Hauser iTEMP PCP TMT 181 Manual De Utilización página 34

Technical Data - Appendix
Output
Accuracy
32
Output (analogue)
Output signal 4...20 mA, 20...4 mA
Transmission as temperature linear, resistance linear, voltage linear
Max. load (V
power supply
Digital filter
0...8 s
st
1 degree
Input current required ≤ 3.5 mA
≤ 23 mA
Current limit
Switch on delay 4 s
(during power up I a = 3.8 mA)
Reply time 1 s
Failure signal (fault monitoring)
Measurement range
Linear drop to 3.8 mA
undercut
Exceeding
Linear rise to 20.5 mA
measurement range
Sensor breakage;
≤ 3.6 mA or ≥ 21.0 mA can be set up
[1]
Sensor short circuit
Electrical connection
Power supply U = 8...35 V DC, polarity protected
b
Galvanic isolation
Û = 3.75 kV AC
(In/out)
≤ 5 V at U
Allowable ripple
U
ss
Reference
Calibration temperature 23 °C ± 5 K
conditions
Resistance thermometer (RTD)
Type Measurement accuracy
Pt100, Ni100
0.2 K or 0.08%
Pt500, Ni500
0.5 K or 0.20%
Pt1000, Ni1000
0.3 K or 0.12%
Resistance transmitter (Ω)
Type Measurement accuracy
± 0.1 Ω or 0.08%
Resistance (Ω)
± 1.5 Ω or 0.12%
Thermocouple (TC)
Type Measurement accuracy
typ. 0.5 K or 0.08%
K, J, T, E, L, U
typ. 1.0 K or 0.08%
N, C, D
typ. 2.0 K or 0.08%
S, B, R MoRe5-MoRe41
Influence of the internal
Pt100 DIN IEC 751 Cl. B
reference junction
Voltage transmitter (mV)
Type Measurement accuracy
± 20 µV or 0.08%
Millivolt transmitter (mV)
[1] Not for thermocouple
[2] % is related to the adjusted measurement range (the value to be applied is the greater)
- 8 V) / 0.022 A
≥ 13 V, f
= 1 kHz
b max.
[2]
[2]
[2]
[2]
Measurement
range
10...400 Ω
10...2000 Ω
Measurement
range
-10...100 mV