Resistance Thermometer | RTD

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AKM 46890/46812/48003 Resistance Thermometer (RTD)

Built-in Heating Element

qualitrol akm 4680 46812 48003 winding temperature simulation

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Resistance thermometer (RTD) with built-in heating element to simulate the measuring of winding temperatures within a transformer. Provides an analog (Pt100) output for remote indication and monitoring. Choice of one or two RTD’s allows for an extra signal for indication or input to SCADA system. Installed in a well (pocket) that allows exchanging units without draining the transformer tank.

Features

Integrated heating element enables accurate simulation of the average or hot spot temperature of the transformer winding
By disconnecting the heating element, the thermometer can directly measure the oil temperature
RTDs enable accurate measurements across an extremely large temperature range
Compact remote indication and monitoring
RTD output allows for temperature indication where it is most convenient
Available with Pt100 (Platinum 100Ω) resistance output
Units with 4-20 mA output can transmit signals over long distances
Weatherproof design and robust materials for long trouble-free life
Ventilated case is weatherproof according to DIN 40050 IP54 (NEMA 3S)
Die-cast aluminum case with thermosetting powder coat provides excellent protection in harsh environments

Options

Supplies 24 VDC for AKM winding temperature simulation systems
Analog gauge allows for accurate and easy temperature indication at a glance
Display features large, highly visible, bright red LEDs
Converts a Pt100 to a 4-20 mA signal for use with remote indicators or connecting to a SCADA system

Applications

For winding temperature simulation where the point of measurement (the well or pocket) is not easily viewed from the base of the apparatus or the information is required remotely.

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