Otis Instruments Omniguard Model 760 Flame Detector

Availability: In stock
Operating Temperature Range:-40°F to 185°F (-40°C to 85°C)
Spectral Response:Infrared Peak Sensitivities: 2.2 um, 3.7 um, 4.4 um, 5.8 um
Nominal Voltage:24 VDC (Ripple Voltage <240mV)
Voltage Range:20 to 30 VDC
Power Consumption:80 mA (Standby), 100 mA (Alarm), 160 mA (Auto and Manual Test)


  • Relays (2): Fire, Trouble, Dry Contacts, Hermetically Sealed
  • Rated: 2 A at 28 VDC (User Selects NO or NC)
  • Fire Relay: User Selects Latching or Non-Latching

Current Loop (Standard Version): 0 to 20 mA Output

  • 20 mA = Fire
  • 16 mA = Warning Fire IR
  • 5 mA = Warning Ref IR
  • 3 mA = Fire Relay Coil Fault
  • 2 mA = Calibration Not Complete
  • 1 mA = Self-Test Fault
  • 0 ma = Current Loop Fault
  • 4 mA = Normal
Digital Output:

RS-485 Modbus Serial 1/0

Product Dimensions:4.5 × 5.5 x 4.9 in.
Total Weight:5 Ibs.
Conduit Entry:3/4-14 NPTF or M20-1.5
Optional Accessories:Swivel Mount - No. 20856
Portable Test Unit - Model 545
Rain Shield - No. 23546
Certifications & Approvals:Class 1, Division 1, Groups B, C & D (Explosion Proof)
Class II, Division 1, Groups E, F & G (Dust Ignition Proof)
TYPE 4X Weatherproof, Dust-Tight, Watertight
CE0081 Ex II 2 G/D
Ex d IIB+H2 T5 Gb for Gas
Ex tb IIIC T100°C Db 1P66 for Dust
Connor-Froo Aluminum Housing Coated to MI.C.5541C Class 3 (White)


The Omniguard Model 760 multi-spectrum infrared flame detector is designed to detect unwanted fires and output alarm information. The Model 760 senses infrared radiation in five discreet infrared wavelengths for early fire detection for maximum protection. Utilizes the patented Omniguard Fire Event Algorithm for superior false alarm immunity and quick detection of hydrocarbon fueled fires.


  • Patented Fire Event Analysis (FEA) Algorithm for Superior False Alarm Immunity
  • Operating Temperature: -40°F to 185°F (-40°C to 85°C)
  • User-Selectable Sensitivities
  • Long Range Detection
  • Diagnostic Ter-Test No External Test Source Required)
  • Self-Contained, Explosion-Proof Enclosure
  • Sensitivity gurable Relays and
  • State-of-the-Art Microprocessor Control
  • Wide Field View of 90°
  • FM, CSA, IECE and ATEX Approved
  • 5-Year Warranty

Please refer to datasheet for more information
Technical Data-Sheet