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Murphy

SDB500EX-3 Temperature Swichgage (10701071)

SDB500EX-3 Direct Mounting Temperature Swichgage 100-500F with 3/4 NPT Thermowell - Explosion Proof (10701071)

The Murphy Explosion-Proof SDB500EX-3 is a Direct Mounting Temperature Swichgage device that provides an accurate direct-reading gauge with an adjustable limit switch to activate alarms and/or shutdown. A knob on the front of the Swichgage allows you to adjust the limit switch trip point. Pointer movement is actuated by a bi-metallic sensing element. When the indicating pointer on the SDB500EX-3 touches the adjustable contact, a one-wire-to-ground circuit is completed to shut down the equipment and/or actuate audible or visual alarms. Proper relays or Tattletale annunciators (magnetic switches) must be incorporated into the system.

A thermowell (separable socket) is used to facilitate maintenance of a temperature Swichgage and to protect the temperature sensing bulb from extreme amounts of system pressure. APPLICATIONS: The most common use of the SDB Series is to monitor gas compressor temperatures. Engine exhaust temperature can also be monitored to indicate over-loading or lean fuel mixtures, or use the SDB to help coordinate loads on twin-engine installations.

FEATURES:

  • Easy to Read Dial
  • Bi-Metallic Sensor
  • 100 to 500°F (40 to 260°C)
  • Dials Scaled in Degrees Fahrenheit/Celsius
  • Sand-Cast Aluminium
  • 3/4 NPT Thermowell
  • Explosion-Proof and CSA Listed for Class I, Group C and D Hazardous Locations