TRANSMITTER WT225 - VT225 - WF225

Transmitter

Transmitter for connection to a Pt100 element , mV transmitter or potentiometer
Measurement and span from the front by trimmer
Outputs 0…10 V and 0/4…20 mA
Operating temperature 0…50 ° C
Supply voltage 230/115 Vac, 24 Vac or 24 Vdc
Plastic housing for mounting on 35 mm DIN rail according to EN 50022 (DIN-rail)

For connection to Pt100 – or mV measuring primary elements – or resistance potentiometer. Output signals are both a voltage signal 0…10 V and a current signal 0/4…20 mA. Both output signals are related to their common negative pole.

Operating mode:
Measurement mode
Entrance:
Pt100 in three-wire circuit, mV or
resistance
Measuring range:
Smallest 20 ° C, largest 400 ° C
With VT 225 smallest 0 … 10 mV

Start of measurement:
-50, -30, 0, +30, +50, +100 ° C
Curve:
Temperature linear, voltage linear
Settings:
Measuring start and span can be adjusted from the front via trimmer

Tolerance:
± 0,2 %

Temperature drift:
± 0,2 % / 10 K

Display:
Operating indicator green, overdrive or sensor break red

Casing:
Polyamide gray, for mounting on a 35 mm standard profile rail according to EN 50022

Dimensions:
22.5 x 99 x 110 mm (WxHxD)
Protection class:

IP 20 according to EN 60529
Connections:
Screw terminals up to 2.5 mm²
Ambient temperature:
-10 to 50 ° C
Rel. Moisture:
0 … 85%, no condensation
Weight:
Approx. 160 g

Power supply:
230 Vac / 115 Vac via input transformer or 24 Vac or 24 Vdc

Power consumption:
Approx. 1.5 VA

Test sockets:
2 mm ø for measuring the output current, internal resistance of the current meter max. 10 Ω
Voltage output:
0 … 10 V, short circuit proof, max. 5 mA
Current output:
0/4 … 20 mA, max. Load 600 Ω
Max. Output current:
Approx. 25 mA for overdrive or sensor break, indicated by red LED

EMC:
EN 61000-6-2, EN 61000-6-3, CE-mark

RoHS:
according RoHS-directive 2011/65/EU

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