Measuring Tolerances For Resistance Thermometers - Siemens SITRANS TS100 Compact Operating Instructions

Technical data

8.4 Measuring tolerances for resistance thermometers

8.4 Measuring tolerances for resistance thermometers
Tolerance classes
The tolerance classes of the resistance thermometers are defined as follows in accordance
with IEC 60751:
Tolerance class
Class B
Class A
Class AA (1/3 B)
Tolerances
The following tables provide an overview of the validity ranges of these tolerances. When
you use a thermometer above the specified limits, the values of the next lower accuracy
class apply.
Action
Basic version
With increased vibra-
tion resistance
With extended measur-
ing range
If an RTD will be subjected in a higher temperature as specified in the class, the sensor will
be declassified to the referring accuracy class. For enduring operation near 400 °C we
recommend the use of an extended measuring range RTD, instead of basic and increased
vibration versions.
58
Basic accuracy
Increased accuracy
High accuracy
Tolerance
Class B
Class A
Class AA (1/3 B)
Class B
Class A
Class AA (1/3 B)
Class B
Class A
Class AA (1/3 B)
Precision
Precision
Basic accuracy
Increased accuracy
High accuracy
Basic accuracy
Increased accuracy
High accuracy
Basic accuracy
Increased accuracy
Increased accuracy
TS100/TS200/TS300/TS500/TSinsert/TSthermowell
Compact Operating Instructions, 01/2018, A5E03920348-AE
∆t
±(0.30 °C +0.0050|t[°C]|)
±1.8x0.30 °F +0.0050x|t[°F]-32|
±(0.15 °C +0.0020|t[°C]|)
±1.8x0.15 °F +0.0020x|t[°F]-32|
±(0.10 °C +0.0017|t[°C]|)
±1.8x0.10 °F +0.0017x|t[°F]-32|
Range
-50 ... +400 °C (-58 ... +752 °F)
-30 ... +300 °C (-22 ... +572 °F)
0 ... +150 °C (+32 ... +302 °F)
-50 ... +400 °C (-58 ... +752 °F)
-30 ... +300 °C (-22 ... +572 °F)
0 ... +150 °C (+32 ... +302 °F)
-196 ... +600 °C (-320 ... +1112 °F)
-100 ... +450 °C (-148 ... +842 °F)
-50 ... +250 °C (-58 ... +482 °F)