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AKM 46890/46812/48003 Resistance Thermometer (RTD)
Brand: Qualitrol CompanyResistance 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
- Choose between one or two RTD’s within the same transmitter in either PT100 (100O platinum) or CU10 (10O copper) resistance outputs
- 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
Specifications
Brand
Case
- Die Cast Aluminum with ANSI #70 Light Grey Coating
Dielectric Strength
- 2,000 Vac for One Minute
Electrical Connectors Type
- Screw Terminals
Input Power
- 24 Vdc - 46890 Series
Load
- 600 ohms, Max.
Mounting
- Side or Top Mount
Number of RTDs
- 1 or 2
Output
- 4-20 mA - 46890 Series
Sensor, Probe
- Stainless Steel
Sensor, Probe Connection
- Brass
Standard Operating Temperature
- -40° to 70° C (-40° to 158° F) - 46812 / 46890 Series
- -50° to 85° C (-58° to 185° F) - 46812 / 46890 Series
Tank Connection
- 7/8”-14 UNF Male-2 - 48003, 44664 Series
- G 1” Male - 48003, 44664 Series
- G 3/4” Male - 48003, 44664 Series
- M22
Weatherproof
- DIN 40050 IP54 Compliant (NEMA 3S Equivalent)