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651 Single-Point RF Level Switch
Brand: SOR IncThe 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
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