Wika TR31 Instrukcja Użytkownika Pobierz pdf (Strona 11)

WIKA operating instructions models TR31-3, TR31-K

14096788.01 07/2014 GB/D

Current signal for fault signal Congurable in accordance with

NAMUR NE43

downscale ≤ 3.6 mA

upscale ≥ 21.0 mA

Sensor short-circuit Not congurable, in accordance with

NAMUR NE43 downscale ≤ 3.6 mA

Sensor current

< 0.3 mA (Self-heating can be neglected.)

Load R

≤ (U

- 10 V) / 23 mA with R

in Ω

and U

in V

Eect of load

±0.05 % / 100 Ω

Power supply U

DC 10 ... 30 V

Max. permissible residual ripple

10 % generated by U

< 3 % ripple of

the output current

Power supply input

Protected against reverse polarity

Power supply eect (depending

on the power supply)

±0.025 % / V

Inuence of the ambient

temperature

0,1 % of the span / 10 K T

amb

Electromagnetic compatibility

(EMC)

2004/108/EC, EN 61326 emission

(group 1, class B) and interference

immunity (industrial application)

conguration at 20 % of the full

measuring range

Temperature units

congurable °C, °F, K

Info data

TAG No., descriptor and user message

can be stored in transmitter

Conguration and calibration data Permanently stored

Electrical connection

■

M12 x 1, 4-pin circular connector

■

Directly connected cable

Readings in % refer to the measuring span

For a correct determination of the overall measuring deviation, both sensor and transmitter

measuring deviations have to be considered.

The temperature transmitter should therefore be protected from temperatures over 85 °C (185 °F).

2) Version with mineral-insulated sheathed cable can be used up to 300 °C (572 °F).

3) Class accuracy A only valid in the temperature range -30 ... +150 °C (-22 ... +302 °F) or

-30 ...+250 °C (-22 ... +482 °F), otherwise class B

4) ±0.2 % for measuring ranges with a lower limit less than 0 °C (32 °F)

5) Use resistance thermometers with shielded cable and ground the shield at at least one end

of the lead if the lines are longer than 30 m or leave the building. Operate the instrument in a

grounded state.

6) During interference consider an increased measuring deviation of up to 2 %.

3.Specications

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 55 56

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Wika TR31 Instrukcja Użytkownika Strona 11

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