Linear Resistance - Siemens SITRANS TH100 Operating Instructions Manual

Technical data
12.2 SITRANS TH320/TH420/TR320/TR420/TF320/TF420
Input type
L
Lr
N
R
S
T
U
W3
W5
Cold junction compensation (CJC)
Cold junction compensation (CJC)
Temperature range internal CJC
Connection external CJC
External CJC, wire resistance per wire (for 3-wire and 4-wire
connections)
Effect of the wire resistance (with 3-wire and 4-wire connec‐
tions)
Input current external CJC
Temperature range external CJC
Cable, wire-wire capacity (CJC and thermocouple)
Total wire resistance
Fault detection, programmable
Note: The short-circuited fault detection only applies to the CJC input.
Fault detection time (TC)
Fault detection time, external CJC (for 3-wire and 4-wire)
12.2.6.3

Linear resistance

Linear resistance input
Input range
Min. measuring span
Connection type
Wire resistance per wire (max.)
Input current
Effect of the wire resistance (with 3-wire
or 4-wire connections)
202
Min. temperature Max. temperature
-200 °C +900 °C
-200 °C +800 °C
-180 °C +1300 °C
-50 °C +1760 °C
-50 °C +1760 °C
-200 °C +400 °C
-200 °C +600 °C
0 °C +2300 °C
0 °C +2300 °C
SITRANS TH320/TR320/TF320
0 Ω ... 100 kΩ
25 Ω
2-wire, 3-wire or 4-wire
50 Ω
< 0.15 mA
< 0.002 Ω/Ω
Min. measuring span
50 °C
50 °C
50 °C
100 °C
100 °C
50 °C
50 °C
100 °C
100 °C
Constant, internal (default) or external over Pt100 or Ni100
RTD
-50 ... +100 °C (-58 ... +212 °F)
2-wire, 3-wire or 4-wire
50 Ω
< 0.002 Ω/Ω
< 0.15 mA
-50 ... +135 °C (-58 ... +275 °F)
Max. 50 nF
Max. 10 kΩ
None, short-circuited, broken
CJC: Short-circuited or broken
≤ 75 ms (typically 70 ms)
≤ 2000 ms
SITRANS TH100/TH320/TH420/TR320/TR420/TF320/TF420 with 4 to 20 mA/HART
Standard
DIN 43710
GOST 3044-84
IEC 60584-1
IEC 60584-1
IEC 60584-1
IEC 60584-1
DIN 43710
ASTM E988-96
ASTM E988-96
SITRANS TH420/TR420/TF420
2-wire, 3-wire or 4-wire
Operating Instructions, 05/2020, A5E41864807-AB