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Adjustable Dead Band Pressure Switch
Brand: SOR Inc
The SOR Adjustable Dead Band pressure switch incorporates two industry proven Static O-Ring pressure sensing elements.
Media pressure on the areas of the pistons counteracts the forces of the range springs — each adjustable by a separate adjusting nut — and moves the piston shafts to operate the lever assembly which, in turn, actuates and deactuates the electrical switching element.
Each pressure sensing element of the Adjustable Dead Band pressure switch is a force balance piston-actuated assembly sealed by a flexible diaphragm and an O-ring that is static.
The only wetted parts are the single pressure port, two diaphragms, and two O-rings.
Features- Safety Certified to IEC 61508 (SIL) - SOR products are certified to IEC 61508 for non-redundant use in SIL1 and SIL2 Safety Instrumented Systems for most models.
- Wide adjustable dead band
- Independent adjustments for increasing and decreasing Set Points
- Field adjustable with fine resolution of Set Points
- Instrument quality — high repeatability
- High overrange and proof pressures
- Exceptionally long life
- Not critical to vibration
- Wide selection of wetted parts materials for process compatibility and containment
Specifications
Brand
Adjustment Type
- Field Adjustable
Approvals & Certifications
- ATEX
- CSA
- FM
- SAA
- SIL
- UL
Diaphragm Material
- 316L Stainless Steel
- Buna-N
- Carpenter 20 Stainless Steel
- Ethylene Propylene (EPR)
- Hastelloy B
- Hastelloy C
- Kalrez
- Monel
- Neoprene
- Tantalum
- Teflon-Coated Polyimide
- Viton
Electrical Connectors
- 18 AWG x 18” Leadwires
- Screw Typical Terminal Block
Electrical Rating
- 10 A at 125 Vac, 1.5-10 A at 125 Vdc
- 11 A at 250 Vac, 0.5 A at 30 Vdc
- 15 A at 250 Vdc, 0.5 A at 30 Vdc
Enclosure, Body Material
- 356 Aluminum
Environmental Protection
- IP65
- NEMA 4, 4X / IP65, 66
- NEMA 4X
O-Ring Material
- AFLAS
- Buna-N
- Ethylene Propylene (EPR)
- Kalrez
- Neoprene
- Viton, Viton GLT
Process Connection Material
- 316 Stainless Steel CF-8M Casting
- Aluminum Alloy 356 Copper-Free Casting
Proof Pressure
- bar: 68.9 to 267.1
- kPa: 6,895 to 26,717
- psig: 1,000 to 3,875
Set Point - Decreasing
- bar: 0 to 103.4
- kPa: 0 to 10,342
- psi: 0 to 1,500
Set Point - Increasing
- bar: 0.344 to 120.6
- kPa: 34.47 to 12,065
- psi: 5 to 1,750
Switch Type
- DPDT
- SPDT
System Pressure
- bar: 50 to 750
- kPa: 5,171 to 17,236
- psi: 750 to 2,500
Temperature Range
- -34° to 240° C (-30° to 400° F)