Wika TR30 Manuel d'utilisateur télécharger pdf (Page 11)

WIKA operating instructions model TR30

11377551.06 07/2014 GB/D

Analogue output

4 ... 20 mA, 2-wire

Measuring error per

DIN EN 60770, 23 °C ±5 K

0.2 % (Transmitter)

Linearisation Linear with temperature per DIN EN 60751

Linearisation error ±0.1 %

Switch-on delay, electrical < 10 ms

Signalling of sensor burnout

Congurable: NAMUR downscale < 3.6 mA

(typically 3 mA)

NAMUR upscale > 21.0 mA (typically 23 mA)

Sensor short-circuit Not congurable, generally NAMUR downscale

< 3.6 mA (typ. 3 mA)

Load R

≤ (U

- 9 V) / 0.023 A with R

in Ω and U

in V

Eect of load ±0.05 % / 100 Ω

Power supply U

DC 10 ... 35 V

Max. permissible residual

ripple

10 % at 24 V / maximum 300 Ω Load

Power supply input Protected against reverse polarity

Power supply eect ±0.025 % / V

Electromagnetic compatibility

(EMC)

2004/108/EC, DIN EN 61326 emission

(Group 1, Class B) and immunity (industrial

application)

, and also per NAMUR NE21

Temperature units Congurable °C, °F, K

Info data TAG No., descriptor and message can be stored

in transmitter

Conguration and calibration

data

Permanently stored in EEPROM

Electrical connection

■

M12 x 1 circular connector, 4-pin

■

Angular DIN connector Form A for cable with

Ø 6 ... 8 mm, cross section max. 1.5 mm²

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.

For detailed specications for Pt100 sensors, see Technical Information IN 00.17 at www.wika.com.

The temperature transmitter should therefore be protected from temperatures over 85 °C

For measuring spans smaller than 50 K additional 0.1 K

±0.2 % for measuring ranges with a lower limit less than 0 °C

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.

3. Specications

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 51 52

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Wika TR30 Manuel d'utilisateur Page 11

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