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750 Series Level Switch
Brand: SOR IncDisplacer controls offer alternative features to the float-operated control. The sensor is a weight (displacer), heavier than the liquid, that is suspended by a spring.
When liquid contacts the displacer, a buoyancy force is produced, which causes the effective weight of the displacer to change. This causes the spring to retract slightly to a new equilibrium position.
When the spring retracts, the attraction sleeve also moves upward into the field of the external magnet, thus overcoming the force of the bias spring and actuating the switching element.
This principle provides for narrow or wide switching differential, and allows switching point alteration by moving the displacer(s) up or down the suspension cables.
Displacers may be arranged in combinations of narrow and wide differential to operate up to three switching stages.
Displacer controls operate under higher pressure conditions than float-operated switches.
Specifications
Brand
Approvals & Certifications
- CRN
- CSA
- RTN
Approvals & Certifications
- 61508 for Non-Redundant: SIL 1 & SIL 2 Safety Instrumented Systems
- Certificate of Calibration
- Compliance/Conformance
- Dielectric Test
- Hydrostatic Pressure Test
- Inspection Certificate
- Insulation Resistance
- Mill Certificate
- QA Test Report
Conduit Connection
- 1/2” NPT
- 3/4” NPT
- M20 x 1.5
Electrical Connectors
- Electrical / Pneumatic Connection: 1” NPT
Electrical Contacts
- Gold Contact
Electrical Rating
- 1-15 A at 110-250 Vac, Resistive/Inductive
- 1-15 A at 20-250 Vdc, Resistive/Inductive
Enclosure Finish
- Housing Exterior: Fungicidal Varnish
- Powder Epoxy Coated
Enclosure, Body Material
- Valve (3-Way), Switch (Extended, Pneumatic): Aluminum
Flange Size - 3” (DN 80)
- 3” (DN 80) - 150#
- 3” (DN 80) - 300#
Flange Size - 4” (DN 100)
- 4” (DN 100) - 150#
- 4” (DN 100) - 300#
Flange Size - 6” (DN 150)
- 6” (DN 150) - 150#
- 6” (DN 150) - 300#
Flange Type
- Raised Face (RF)
Fluid Specific Gravity
- 0.71 to 0.85
Gasket Material
- 316 Stainless Steel wound around Grafoil
- Nitrile Binder Composite
Humidity
- < 85 %, Max.
Materials of Construction
- Chamber, Float, Displacer, Attraction Sleeve Material: 316 Stainless Steel
- Chamber, Float, Displacer, Attraction Sleeve Material: 316L Stainless Steel
- Chamber, Float, Displacer, Attraction Sleeve Material: Carbon Steel (A106B)
- Displacer Material: Porcelain
- M20 Adapter: Brass
NACE & NIST
- NACE
Name Plate, Tag Material
- Stainless Steel
- Fiber
NPT Connection
- 2-1/2” NPT
- 3” NPT
O-Ring Material
- Buna-N
Operating Pressure
- psi: 1,000 (kPa: 6,900, bar: 69) - Max.
Power
- 100 mW
Process Connection Material
- 304 Stainless Steel
- 304L Stainless Steel
- 316 Stainless Steel
- 316L Stainless Steel
- Alloy 20 or Incoloy
- Carbon Steel (A333 GR.6, A335-P11 Chrome Moly, A335-P9)
- Hastelloy C
- Monel 400
Sensor, Probe Style
- Float
Switch Type
- DPDT
- SPDT
Temperature Range
- 649° C (1,200° F) - Max.
Trim Material
- 316 Stainless Steel
- 400 Series Stainless Steel
- Three switching points to provide numerous combinations of ways to configure the point level switch outputs
- Direct tank mount