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 All Categories    Adtech Field Selectabe Alarms - 500 Series
Weschler Instruments is a manufacturer and distributor of electrical and electronic measurement equipment. Customers worldwide use our products in power plants, steel mills, chemical plants, paper mills and other industrial applications that require rugged, reliable and accurate instrumentation.
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Adtech Field Selectabe Alarms - 500 Series

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The ADTECH 500 series alarm modules provide a full featured alarm module in a compact, easy to wire, DIN case. All modules come with one or two fully adjustable setpoints. Other standard features include adjustable deadband, adjustable time delay, latching action and LED indication of alarm status. Alarms can be configured for both fail safe and non-fail safe conditions.


Available alarm modules can accept inputs from AC Voltage, AC Current, DC voltage, DC Current, Millivolt, RTD and Thermocouple sources. Standard power supply is our universal AC input supply that can accept AC power inputs from 100-240 VAC. A 24VDC optional power is also available. Units are isolated input to output to power. Standard units are built to a work in most industrial environments. For unusually harsh electrical areas, modules can be ordered with additional transient and noise immunity circuitry.


The standard housing is made of corrosion resistant Krilen Plastic and is designed for DIN rail mounting. Units can also be ordered in Nema 4 or Nema 7 enclosures. Electrical connection is by a very reliable screw compression terminal


  • Single or Dual Setpoint
  • Universal Relay Action - Normal or Fail Safe, High or Lo Limit
  • 0- 30 Second Adjustable Time Delay
  • Latching Action
  • LED Indication of Alarm Status
  • Potentiometer Setpoint Adjustment

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Item #



AD/ACA514 Single ACV, ACA
AD/DCA514 Single DCV, DCmA
AD/DCA515 Dual DCV, DCmA
AD/MVA514 Single DCmV
AD/MVA515 Dual DCmV
AD/RBA514 Single RTD & Resistance
AD/RBA515 Dual RTD & Resistance
AD/TCA514 Single Thermocouple
AD/TCA515 Dual Thermocouple
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