ELIWELL EWTM 202 Electronic Digital Thermometer Only NOS.

Unless I have no PTC probe, it was simulated with 1 kOm resistor.

The EWTM 202 is electronic digital
thermometers which can be connected to various types of
probes (PTC, Pt100, Ni100, TcJ, TcK); they are available in
the 32x74 standard format. The measuring range goes from
–80 to 999 °C, according to the type of probe, and
temperature values are viewed on a 3–digit plus sign display.

The power supply voltage is 230, 110, 24 or 12 Va/c.

Technical data

Container: PC+ABS plastic resin with extinguishing
classification UL94 V0.
Size: front panel 32x74 mm, depth 67 mm.
Mounting: panel, on 71x29 mm. hole.
Connections: on screw clamp for 2.5 mm2 conductors (one
conductor only per terminal, according to VDE regulations).
Protection: on request, a shelter (roofing tile) with
restrained mounting on the back of the instrument is
supplied in order to protect the screw clamp.
Usage temperature: –5…60 °C.
Storage temperature: –30…75 °C.
Display: 3 digits (depending on model), 12.5 mm high.
Analogue input: for PTC, Pt100, Ni100, TcJ, TcK probe.
Resolution: 1 °C or 0.1 °C (for PTC probe only).
Accuracy: better of the 0.5% than the end of scale.
Power supply: 30, 115, 24, 12 Va/c ±10% for EWTM 202 model.

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