EN
WIKA operating instructions model TR57-M
14222243.02 08/2022 EN/DE
23
9.
Specifications
Thermometer with transmitter and 4 ... 20 mA output signal
Process temperature range
Standard
-20 ... +100 °C [-4 ... +212 °F], max.
150 °C [302 °F] for 30 min.
1)
Extended
-20 ... +150 °C [-4 ... +302 °F]
1)
, only
with transmitter measuring range
0 ... 150 °C [32 ... 302 °F]
Connection method
3-wire
Measurement accuracy of the
overall instrument
2.5 % of full scale
2)
Measurement accuracy of the
overall instrument with thermal
compound
1.0 % of full scale
2)
Measuring range of the
transmitter
■
-10 ... +50 °C [14 ... 122 °F]
■
0 ... 100 °C [32 ... 212 °F]
■
0 ... 150 °C [32 ... 302 °F]
The measuring range is fixed.
Analogue output
4 ... 20 mA, 2-wire
Supply voltage U
B
DC 10 ... 30 V
Response time
Approx. t
90
= 10 s
2)
Switch-on delay, electrical
Max. 1 s (time before the first measured value)
Current value for error signalling
Upscale approx. 22 mA
Load R
A
R
A
≤ (U
B
- 10 V) / 23 mA with R
A
in Ω and U
B
in V
Electrical connection
Circular connector M12 x 1 (4-pin)
Supply voltage input
Protected against reverse polarity
1) The temperature transmitter should therefore be protected from temperatures over 60 °C [140 °F]
2) Measuring results are dependent upon the individual mounting situation.
Thermometer with direct sensor output with Pt100
Process temperature range
-20 ... +150 °C [-4 ... +302 °F]
Measuring element
Pt100 (measuring current max. 10 mA, 0.3 ... 1 mA
recommended)
Temperature at the connector
Max. 85 °C [185 °F]
Connection method
3-wire
Tolerance value of the
measuring element per
IEC 60751
Class A
2)
9. Specifications
