Temperature Measurement
Transmitters for rail mounting
SITRANS TR300
two-wire system, universal, HART
3/40
Siemens FI 01 · 2012
Digital measuring errors
Resistance thermometer
Resistance-based sensors
Thermocouples
1)
The digital accuracy in the range 0 to 300 °C (32 to 572 °F) is 3 °C
(5.4 °F).
2)
The digital accuracy in the range 1750 to 2300 °C (3182 to 4172 °F) is
2 °C (3.6 °F).
mV sensor
The digital accuracy is the accuracy after the analog/digital con-
version including linearization and calculation of the measured
value.
An additional error is generated in the output current 4 to 20 mA
as a result of the digital/analog conversion of 0,025 % of the set
span (digital-analog error).
The total error under reference conditions at the analog output is
the sum from the digital error and the digital-analog error (poss.
with the addition of cold junction errors in the case of thermocou-
ple measurements).
Input Measuring range Min. mea-
sured span
Digital
accuracy
°C / (°F) °C (°F) °C (°F)
to IEC 60751
Pt25 -200 ... +850
(-328 ... +1562)
10 (18) 0.3 (0.54)
Pt50 -200 ... +850
(-328 ... +1562)
10 (18) 0.15 (0.27)
Pt100 ... Pt200 -200 ... +850
(-328 ... +1562)
10 (18) 0.1 (0.18)
Pt500 -200 ... +850
(-328 ... +1562)
10 (18) 0.15 (0.27)
Pt1000 -200 ... +350
(-328 ... +662)
10 (18) 0.15 (0.27)
to JIS C1604-81
Pt25 -200 ... +649
(-328 ... +1200)
10 (18) 0.3 (0.54)
Pt50 -200 ... +649
(-328 ... +1200)
10 (18) 0.15 (0.27)
Pt100 ... Pt200 -200 ... +649
(-328 ... +1200)
10 (18) 0.1 (0.18)
Pt500 -200 ... +649
(-328 ... +1200)
10 (18) 0.15 (0.27)
Pt1000 -200 ... +350
(-328 ... +662)
10 (18) 0.15 (0.27)
Ni 25 to Ni1000 -60 ... +250
(-76 ... +482)
10 (18) 0.1 (0.18)
Input Measuring range Min. mea-
sured span
Digital
accuracy
Ω Ω Ω
Resistance 0 ... 390 5 0.05
Resistance 0 ... 2200 25 0.25
Input Measuring range Min. mea-
sured span
Digital
accuracy
°C / (°F) °C (°F) °C (°F)
Type B 0 ... 1820
(32 ... 3308)
100 (180) 2
1)
(3.6)
1)
Type C (W5) 0 ... 2300
(32 ... 4172)
100 (180) 2 (3.6)
Type D (W3) 0 ... 2300
(32 ... 4172)
100 (180) 1
2)
(1.8)
2)
Type E -200 ... +1000
(-328 ... +1832)
50 (90) 1 (1.8)
Type J -210 ... +1200
(-346 ... +2192)
50 (90) 1 (1.8)
Type K -230 ... +1370
(-382 ... +2498)
50 (90) 1 (1.8)
Type L -200 ... +900
(-328 ... +1652)
50 (90) 1 (1.8)
Type N -200 ... +1300
(-328 ... +2372)
50 (90) 1 (1.8)
Type R -50 ... +1760
(-58 ... +3200)
100 (180) 2 (3.6)
Type S -50 ... +1760
(-58 ... +3200)
100 (180) 2 (3.6)
Type T -200 ... +400
(-328 ... +752)
40 (72) 1 (1.8)
Type U -200 ... +600
(-328 ... +1112)
50 (90) 2 (3.6)
Input Measuring range Min. mea-
sured span
Digital
accuracy
mV mV μV
mV sensor -10 ... +70 2 40
mV sensor -100 ... +1100 20 400
© Siemens AG 2011
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