Direct or Remote Mount – Explosion Proof Temperature Switch

The adjustable SOR explosion proof temperature switch may be either direct or remotely mounted making it a versatile, “fits most applications,” instrument. It is designed and built to withstand the punishment of harsh process environments and is constructed of cast iron. It operates on the proven vapor-pressure thermal system and best of all, it’s low cost. 

• Ranges -60° to 1000°F (-51° to 540°C)
• Set point adjustment with calibrated scale
• SIL approved

Robust Construction
 Rugged, high-cycle rate tolerance,
long life, not critical to vibration,
high overrange and proof pressures,
excellent corrosion resistance to
hostile environments.
 Enclosure ratings: NEMA 1, 4, 4X, 7,
or 9 available.
 Ingress protection rating up to IP66.
Vapor Pressure Principle
 Device’s behavior is predictable and
in accordance with the vapor pressure
principle.
 Minimal ambient temperature
influence, fast response, high
repeatability, narrow dead band.
Vapor Fill Fluid
 Excellent chemical and thermal
stability, predictable temperaturevapor pressure curve, nonflammable,
low toxicity.
Direct Immersion Temperature
Sensing Bulbs
 316SS can withstand 2300 psig
(1000 psig on 105 range) without
thermowell, faster response time,
lower cost.
Remote Mount Sensing Bulbs
 316SS capillary tube with 300 Series
SS armor allows instrument to be
panel mounted and bulb to be
remotely located.
 Standard 300 Series SS armor
protects capillary.
Snap-Action Electrical Switching Element
 Long life, high load capacity, high ambient
temperature limit, insensitive to vibration,
SPDT or DPDT switching action,
optional “hermetically sealed” capsule
for hazardous locations and hostile
environments.
Shock/Vibration
 Select models tested to MIL-S-901D
(Navy) shock test.
 Select models tested to MIL-S-167
vibration test.
Factory Calibration
 FREE! Calibrated to customer’s set
point, ready to install.
Agency Listings/Certification
• Select models with ATEX, IECEx, CSA,
GOST R, INMETRO, Rostechnadzor
(RTN), TestSafe, UL
• Meets most code and customer
requirements.
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. For more details or values
applicable to a specific product, see the
Safety Integrity Level Quick Guide
(Form 1528).
Warranty
 3 years from the date of manufacture.