12.2.6 Input
12.2.6.1 RTD
Input type Standard Min. value Max. value ∝ Min. measuring
span
Pt10 ... 10,000 IEC 60751 -200 °C +850 °C 0.003851 10 °C
JIS C 1604-8 -200 °C +649 °C 0.003916 10 °C
GOST 6651-2009 -200 °C +850 °C 0.003910 10 °C
Callendar-Van Du‐
sen
-200 °C +850 °C - 10 °C
Ni10 ... 10,000 DIN 43760-1987 -60 °C +250 °C 0.006180 10 °C
GOST 6651-2009 /
OIML R84:2003
-60 °C +180 °C 0.006170 10 °C
Cu5 ... 1000 Edison Copper
Winding No. 15
-200 °C +260 °C 0.004270 100 °C
GOST 6651-2009 /
OIML R84:2003
-180 °C +200 °C 0.004280 100 °C
GOST 6651-94 -50 °C +200 °C 0.004260 100 °C
Connection type 2-wire, 3-wire and 4-wire
Wire resistance per wire (max.) 50 Ω
Input current < 0.15 mA
Eect of the wire resistance (with 3-wire and 4-wire connec‐
tions)
< 0.002 Ω / Ω
Cable, wire-wire capacity Max. 30 nF (Pt1000 & Pt10000 IEC and JIS +Ni1000 &
NI10000)Max. 50 nF (all other input types)
Fault detection, programmable None, short-circuited, broken, short-circuited or broken
Note: When the low limit for the congured input type is below the constant detection limit for short-circuited inputs, the
detection of short circuits is disabled regardless of the conguration of the fault detection.
Detection limit for short-circuited input 15 Ω
Fault detection time (RTD) ≤ 75 ms (typically 70 ms)
Fault detection time (for 3-wire and 4-wire) ≤ 2000 ms
12.2.6.2 Thermocouple (TC)
Input type Min. temperature Max. temperature Min. measuring span Standard
B 0 (85) °C +1820 °C 100 °C IEC 60584-1
E -200 °C +1000 °C 50 °C IEC 60584-1
J -100 °C +1200 °C 50 °C IEC 60584-1
K -180 °C +1372 °C 50 °C IEC 60584-1
Technical data
12.2 SITRANS TH320/TH420/TR320/TR420/TF320/TF420
SITRANS TH100/TH320/TH420/TR320/TR420/TF320/TF420 with 4 to 20 mA/HART
Operating Instructions, 05/2020, A5E41864807-AB 201