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AKM OTI/WTI Capillary Based Oil Thermometer

Brand: Qualitrol Company

Capillary based, mechanical, remote indicating thermometer. Configurations for oil temperature measurement and winding temperature simulation.

Features up to 6 adjustable switches for alarm, trip, and cooling system functions and can be equipped with various electronic outputs for SCADA and remote monitoring applications.
Features
  • AKM bellows measurement with reset-able maximum pointer
  • Up to 6 fully independent and user adjustable switches (contacts) for control and alarms.
  • Switches can be specified by switch type, hysteresis range, and set point, without limitation of sequential set points.
  • 6 inch (150 mm) dial face with an angular dial span of 260° for maximum ease of measurement interpretation.
  • Built in spring loaded pointer for switch field testing
  • Improved connection ease with a greater number cable glands; 3 x M25 style and 2 x M20 style
  • New and improved swing out case design allows for easy cable connection, switch configuration and testing without removal of the cover
  • Standard switch rated for up to 15 Amps AC and up to 10 Amp DC, switches also available for higher Vdc (magnetic blow out, M.B.O.), and switches for milliamp loads
  • Non-pressured bellows system better resists leakage when compared to bourdon tube (pressurized) style capillary thermometers
  • Integrated heating element in bellows for winding temperature indication eliminates extra cost and complexity of accessories to simulate the winding
  • AKM bellows system provides a 260° dial deflection (angle the pointer travels from minimum to maximum) making it easier to interpret temperature reading from a distance
  • Same installation footprint and mounting options as the previous generation AKM 345
  • Improved wiring installation with addition of 2 cable glands (for a total of 5) and an increase in size to 3 x M25 and 2 x M20 versus the previous generation

Specifications

Ambient Operating Temperature

  • -40° to 70° C (-40° to 158° F)
  • Polar Execution: -60° to 70° C (-76° to 158° F)

Cable Gland

  • 3 x M25, 2 x M20

Capillary

  • Copper
  • Copper / Nickel with Stainless Steel Jacket

Cover

  • Swing Up Cover Design, Fully Detachable, with All Captive Hardware

Dielectric Isolation

  • 2,500 Vac at 50 Hz, 60 seconds, All Terminals to Ground

Enclosure

  • IP55
  • IP65

Housing

  • Die Cast Aluminum, Polyester Powder Coat Finish

Humidity

  • 95 % Non-Condensing Relative Humidity at 95° C (203° F)

Indication Accuracy

  • ± 1.5 % of Full Scale

Lens

  • Glass
  • UV Stabilized Polycarbonate

Mounting Style

  • Elastomeric Seismic Mount
  • Stainless Steel Anti-Vibration Mount

Number of Switches

  • 2 to 6 Switches

Optional Remote Output

  • Current Loops: 0-1 or 4-20 mA
  • Resistive: Pt 100 or Cu 10 ohm
  • Voltage: 1-5 V

Sensor, Probe Type

  • 14 mm Diameter x 156 mm Length

Shock

  • 10 G’s Half-Sine, in Three Orthogonal Planes

Standard Measurement Range

  • 0° to 150° C (32° to 302° F)

Storage Temperature

  • 50° to 80° C (-58° to 176° F)

Surge Withstand Capability

  • IEEE C37.90.1 (TD111 Output Board Only)

Switch Type

  • Vacuum, Vdc, M.B.O. (Magnetic Blow Out for High DC)

Switching Accuracy

  • ± 3 % of Full Scale

Switching Differential (Hysteresis)

  • 10° to 14° C (50° to 57.2° F) for Most Dial Ranges
  • Adjustable Differential from 5° to 25° C (41° to 77° F)

Vibration

  • 50/60 Hz at 0.1 mm inch Displacement, 3-Axes

Winding Thermal Image

  • Internal Winding Simulation: TD50 (up to 2.2 A CT, Max.
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