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OEM Miniature Resistance Thermometer - TR31
Brand: WIKA Instruments Ltd.
Resistance thermometers of this series are used as universal thermometers for the measurement of liquid and gaseous media in the range -50 ... +250 °C [-58 ... +482 °F]. For application in hazardous areas, intrinsically safe versions are available.
Features- Very compact design, high vibration resistance and fast response time.
- With direct sensor output (Pt100, Pt1000 in 2-, 3- or 4-wire.
- Integrated transmitter is individually parameterisable with.
- Sensor element with accuracy class A in accordance with.
- EMC conformity in accordance with NAMUR NE21.
Specifications
Temperature Range
- Class A Without neck tube: -30 ... +150° C [-22 ... +302° F]
- Class B With neck tube: -50 ... +250° C [-58 ... +482° F
- Class B Without neck tube: -50 ... +150° C [-58 ... +302° F]
- Class A With neck tube: -30 ... +250° C [-22 ... +482° F]
Temperature at Connector or at the Directly Connected Cable
- Max. 85° C [185° F]
Measuring Element
- Pt1000 (measuring current: 0.1 ... 0.3 mA)
- Pt100 (measuring current: 0.1 ... 1.0 mA)
Connection Method
- 4-wire The lead resistance can be ignored.
- 3-wire With a cable length of 30 m or longer, measuring deviations can occur.
- 2-wire The lead resistance is recorded as an error in the measurement.
Tolerance Value of the Measuring Element Per IEC 60751
- Class B at 2-wire
- Class A
Electrical Connection
- Directly connected cable
- M12 x 1 circular connector (4-pin)
Material of Wetted Parts
- Stainless steel 1.4571
Explosion Protection (Option)
- Intrinsically safe to Ex i (ATEX) gas/dust
- (for further information see “Further specifications for explosion-protected version”)
