WIKA TR31 Betriebsanleitung Seite 9

3. Specifications
Output signal 4 ... 20 mA, model TR30-W
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Measuring element and measuring insert
The Pt100 measuring element is located in the thermometer's probe tip.
The 4 ... 20 mA transmitter is mounted and potted within the tubular body of the
thermometer.
Output signal 4 ... 20 mA, model TR30-W
Temperature range
Measuring element
Sensor tolerance value
1)
per DIN EN 60751
Measuring span
Basic configuration
Analogue output
Measuring error
per DIN EN 60770, 23 °C ±5 K
Linearisation
Linearisation error
Switch-on delay, electrical
Signalling of sensor burnout
Sensor short-circuit
Load R A
Effect of load
Power supply
Max. permissible residual ripple
Power supply input
Power supply effect
Electromagnetic compatibility
(EMC)
Temperature units
Info data
Configuration and calibration data
Electrical connection
Readings in % refer to the measuring span
For a correct determination of the overall measuring error, both sensor and transmitter measuring deviations have to
be considered.
1) For detailed specifications for Pt100 sensors, see Technical Information IN 00.17 at www.wika.com.
2) The temperature transmitter should therefore be protected from temperatures over 85 °C
3) For measuring spans smaller than 50 K additional 0.1 K
4) ± 0.2 % for measuring ranges with a lower limit less than 0 °C
5) Use resistance thermometers with shielded cable, and ground the shield on at least one end of the lead, if the cables are longer than
30 m or leave the building.
WIKA operating instructions models TR30, TR31
Measuring range without neck tube -50 ... +150 °C,
with neck tube -50 ... +250 °C
Pt100 (measuring current: 0.5 mA)
Class B
minimum 20 K, maximum 300 K
Measuring range 0 ... 150 °C, other measuring ranges are adjustable
4 ... 20 mA, 2-wire
0.2 % (Transmitter)
3)
linear with temperature per DIN EN 60751
±0.1 %
4)
< 10 ms
configurable: NAMUR downscale < 3.6 mA (typically 3 mA)
NAMUR upscale > 21.0 mA (typically 23 mA)
not configurable, generally NAMUR downscale < 3.6 mA (typ. 3 mA)
R A ≤ (U B - 9 V) / 0.023 A with R A in Ω and U B in V
± 0.05 % / 100 Ω
DC 10 ... 35 V
10 % at 24 V / maximum 300 Ω Load
protected against reverse polarity
± 0.025 % / V
2004/108/EC, DIN EN 61326 emission (Group 1, Class B) and immunity
(industrial application) , and also per NAMUR NE21
5)
configurable °C, °F, K
TAG No., descriptor and message can be stored in transmitter
permanently stored in EEPROM
Angular DIN connector Form A, M12 x 1 circular connector, 4-pin
2)
GB
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