Temperature Switch

Brand: SOR Inc

The SOR Temperature Switch utilizes a vapor-pressure thermal system. Fluid vapor pressure changes predictably according to the influence of temperature on the sensing bulb. 
 
Process temperature changes cause proportional vapor pressure changes in the temperature sensing bulb that act on the diaphragm/piston assembly to actuate and deactuate a snap-action electrical switching element at discrete process temperatures. 
 
The instrument’s behavior is determined by the vapor pressure principle.
Features
  • Robust construction
  • Vapor pressure principle
  • Vapor fill fluid
  • Direct immersion temperature sensing bulbs
  • Remote mount sensing bulbs
  • Snap-action electrical switching element
  • Shock / vibration
  • Factory calibration
  • Agency listings/certification
  • Safety certified to IEC 61508 (SIL)

Specifications

Brand

Diaphragm Material

  • 316 Stainless Steel
  • Hastelloy B
  • Hastelloy C
  • Monel

Electrical Contacts

  • DPDT
  • SPDT

Repeatability

  • 1 % of Full Scale
  • 2 % of Full Scale

Housing Material

  • Carbon Steel
  • Cast Iron
  • Copper-Free Aluminum or Aluminum

Maximum Process Pressure

  • 2,300 psi (158 bar)
  • 1,000 psi (70 bar)

Electrical Rating

  • 1-15 A at 250 Vac
  • 0.25-10 A at 28-250 Vdc Resistive

Mounting

  • Direct Mounting
  • Remote Mounting

Ambient Temperature

  • -54° to 200° C (-65° to 400° F)

Environmental Protection

  • Explosion-proof Class I, Groups C & D, Class II, Groups E, F, G, Divisions 1 & 2
  • IP65
  • IP66
  • NEMA 1
  • NEMA 4
  • NEMA 4X
  • NEMA 7
  • NEMA 9
  • Weatherproof

Set Point - Decreasing

  • -45° to 540° C (-50° to 1,000° F)

Set Point - Increasing

  • -45° to 540° C (-50° to 1,000° F)

Process Connection

  • 1/2" NPT Male
  • 3/4" NPT Male
  • 1" NPT Male

Electrical Connection

  • 18" 18 AWG Color-coded Wire Leads
  • 3/4" NPT Female
  • 1/2" NPT Female
  • M20 x 1.5 F
  • Screw Terminal

Approvals & Certifications

  • ATEX EEx d IIC T6 & T5
  • CRN - Canadian Registration Number
  • CSA Certified Explosion-proof Class I, Groups A, B, C, D, Class II, Groups E, F, G, Class III, Divisions 1 & 2
  • IECEx Certified (Ex db IIC T6/T5 Gb)
  • INMETRO
  • Rostechnadzor (RTN)
  • UL Ex ia IIC T6 to T4 Gb
  • SIL 1, 2

Capillary Length

  • 6 to 20 ft (1.8 to 6 m)

Capillary Material

  • 316 Stainless Steel

NACE & NIST

  • NACE MR-0175

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