SOR Single-Point RF Level Switch, 651
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651 Single-Point RF Level Switch

Brand: SOR Inc
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The 651 provides basic, single-point switching for use as an alarm or indicator. 

It’s virtually immune to process coatings on the probe, making it a useful solution for many tough level applications.

This immunity, combined with the absence of any moving parts, makes the 651 well suited for applications that are difficult for other technologies.
Features
  • Economical point sensing
  • Suitable for 12 Vdc service
  • FM Approved, CSA Certified hazardous locations, IEC Certified F
  • Field-selectable failsafe

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Specifications

Brand

Adjustment Type

  • Field Adjustable Fail-safe

Ambient Temperature Range

  • -40° to 71° C (-40° to 160° F)

Approvals & Certifications

  • Certificate of Calibration
  • Compliance/Conformance
  • Inspection Certificate
  • Insulation Resistance

Approvals & Certifications

  • CSA
  • FM
  • IEC
  • INMETRO

Conduit Connection

  • 3/4” NPT

Delay Time

  • 0.5 seconds Time Delay ON/OFF
  • 60 seconds Time Delay ON/OFF

Electrical Protection

  • Electrostatic Discharge Protection 4,000 V (Loop), 8,000 V (Line)
  • Line Surge Suppression 1,000 V, Line Voltage EMC

Electrical Rating

  • 5 A at 12 Vdc

Enclosure Finish

  • Epoxy Coated
  • Housing Exterior: Fungicidal Varnish

Environmental Protection

  • Explosion-proof
  • Intrinsically Safe
  • IP65
  • IP66
  • NEMA 4X

Input Power

  • Input Power (Line): 12 Vdc
  • Input Power (Line): 120 Vac, 50/60 Hz
  • Input Power (Line): 24 Vdc
  • Input Power (Line): 240 Vac, 50/60 Hz
  • Input Power (Loop): 12-28 Vdc

Loop Resistance

  • 780 ohms, Max.

Maximum Current

  • Draw (Line Power): 10 mA, 240 Vac
  • Draw (Line Power): 100 mA at 12 Vdc
  • Draw (Line Power): 20 mA, 120 Vac
  • Draw (Line Power): 50 mA, 24 Vdc

Measuring Range

  • 0 to 1,000 PF

Name Plate, Tag Material

  • Stainless Steel
  • Fiber

NPT Connection

  • 1” NPT Male
  • 1-1/2” NPT Male
  • 2” NPT Male
  • 3/4” NPT Male

Output

  • Output Typical (Line): 10 A DPDT at 250 Vac
  • Output Typical (Line): 10 A DPDT at 30 Vdc
  • Output Typical (Loop): 16 mA (Normal)
  • Output Typical (Loop): 8 mA (Alarm)

Repeatability

  • 0.5%

Response Time

  • 0.5 second

Sensitivity

  • 0.5 PF

Switch Type

  • DPDT

Documentation

Catalogs

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