WIKA TR31-3 Betriebsanleitung Seite 13

3. Specifications
Thermometer with transmitter and 4 ... 20 mA output signal
(model TR31-x-x-TT)
Max. permissible residual
ripple
Power supply input
Power supply effect
Influence of the ambient
temperature
Electromagnetic
compatibility (EMC)
Temperature units
Info data
Configuration and
calibration data
Electrical connection
Readings in % refer to the measuring span
1) Version with mineral-insulated sheathed cable can be used up to 300 °C (572 °F).
2) The temperature transmitter should therefore be protected from temperatures over 85 °C (185 °F).
3) ±0.2 % for measuring ranges with a lower limit less than 0 °C (32 °F)
4) Use resistance thermometers with shielded cable, and ground the shield on at least one end
of the lead, if the lines are longer than 30 m or leave the building. The instrument must be
operated grounded.
5) During transient interferences (e.g. burst, surge, ESD) take into account an increased measuring
deviation of up to 2 %.
WIKA operating instructions models TR31-3, TR31-K (Ex i)
10 % generated by U
current
Protected against reverse polarity
±0.025 % / V (depends on the power supply)
0.1 % of span / 10 K T
EN 61326 emission (group 1, class B) and
interference immunity (industrial application)
5)
configuration at 20 % of the full measuring range
Configurable °C, °F, K
TAG No., description and user message can be
stored in transmitter
Permanently stored
M12 x 1 circular connector (4-pin)
■
Directly connected cable
■
< 3 % ripple of the output
B
a
EN
,
4)
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