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 | |||
详细说明: | |||
Vapor Pressure Principle | |||
l Device’s behavior is predictable and | |||
in accordance with the vapor pressure | |||
principle. | |||
l Minimal ambient temperature influence, | |||
fast response, high repeatability, narrow | |||
dead band. | |||
Vapor Fill Fluid | |||
l Excellent chemical and thermal | |||
stability, predictable temperature-vapor | |||
pressure curve, nonflammable, low | |||
toxicity. | |||
Direct Immersion T emperature | |||
Sensing Bulbs | |||
l 316SS can withstand 2300 psig | |||
(1000 psig on 105 range) without | |||
thermowell; faster response time; | |||
lower cost. | |||
Remote Mount Sensing Bulbs | |||
l 316SS capillary tube with 300 Series SS | |||
armor allows instrument to be panel | |||
mounted and bulb to be remotely located. | |||
l Standard 300 Series SS armor protects | |||
capillary. | |||
Snap-Action Electrical Switching Element | |||
l 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. | |||
Agency Listings/Certification | |||
l selec models with UL, CSA, ATEX, SAA. | |||
Factory Calibration | |||
l FREE! Calibrated to customer’s Set | |||
Point, ready to install. | |||
Warranty | |||
l 3 years from the date of manufacture. |
SOR 温度开关