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
Rugged, high-cycle rate tolerance,
long life, not critical to vibration,
high overrange and proof pressures,
excellent corrosion resistance to
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
Minimal ambient temperature
influence, fast response, high
repeatability, narrow dead band.
Vapor Fill Fluid
Excellent chemical and thermal
stability, predictable temperaturevapor pressure curve, nonflammable,
Direct Immersion Temperature
316SS can withstand 2300 psig
(1000 psig on 105 range) without
thermowell, faster response time,
Remote Mount Sensing Bulbs
316SS capillary tube with 300 Series
SS armor allows instrument to be
panel mounted and bulb to be
Standard 300 Series SS armor
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
Select models tested to MIL-S-901D
(Navy) shock test.
Select models tested to MIL-S-167
FREE! Calibrated to customer’s set
point, ready to install.
• Select models with ATEX, IECEx, CSA,
GOST R, INMETRO, Rostechnadzor
(RTN), TestSafe, UL
• Meets most code and customer
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
3 years from the date of manufacture.
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