Pressure Transducers

AST46SW Explosion Proof Pressure Switch

AST46SW Explosion Proof Pressure Switch

The Model 46SW is a high accuracy Explosion-proof Pressure Switch, designed for use in a variety of applications. Applying digital compensation, this product offers top performance over a wide temperature range. Utilizing Krystal Bond Technology™, the sensing element will measure pressure in the most extreme temperature conditions. Where other sensor technologies will freeze or boil, the AST46SW uses a one piece stainless steel sensor to offer continuous operation. If linearity and repeatability are critical for your application, this product will exceed your expectations at an affordable price.

Design Benefits
– CSA30 (UL1203 / FM3615) Class I Div 1 and Zone 1 Group IIC Explosion-proof – Groups A, B, C, D
– ATEX / IECEx: Class I, Zone 1, Ex d IIC T5 Gb (Ta = -40°C to 85°C)
– ANSI 12.27.08-1 Single Seal Approved
– ASIC Compensation
– Superb Temperature Performance
– Excellent Accuracy
– High Proof and Burst Pressure
– Factory Sealed

Applications / Industries
Well Optimization
– Oil and Gas Pipelines
– Drilling Platforms
– Compression Panels
– CNG / Hydrogen Fill Stations
– Paint Booths
– Combustion Controls

Performance @ 25°C (77°F)

Accuracy1<±1.0% BFSL of line pressure
Proof Pressure2X rated line pressure, standard
Burst Pressure5X or 60,000 PSI of line pressure, whichever is less
Pressure Cycles> 100 million full pressure cycle
1 Accuracy includes: Non-linearity, Hysteresis and Non-repeatability

Environmental Data

Operating-40 to 85°C (-40 to 185°F)
Storage-50 to 105°C (-58 to 221°F)
Thermal Limits
Compensated Range-20 to 70°C ( -4 to 158°F)
ShockEN 60068-2-27
VibrationEN 60068-2-6, 60068-2-64,
and IEC 68-2-32
EMI/RFI ProtectionYes

Electrical Data

Current Consumption< 10mA
Output Load1 Amp., Resistive
Reverse PolarityYes