AST46SW Explosion-Proof Pressure Switch

Brand: American Sensor Technologies Inc

AST46SW Explosion-Proof Pressure Switch

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

Specifications

Accuracy

  • < ± 1.0 % BFSL

Applications

  • CNG / Hydrogen Fill Stations
  • Combustion Controls
  • Drilling Platforms
  • Oil & Gas Pipelines
  • Paint Booths
  • RTU
  • Well Optimization

Approvals & Certifications

  • ANSI
  • ASME
  • ATEX
  • CSA
  • FM
  • IEC Ex

BSP Connection

  • 1/4” BSPP Male
  • G 1/4” Male

Burst Pressure

  • psi: 60,000 (kPa: 413,700, bar: 4,137) or 5 times whichever is less

Compensated Temperature

  • -20° to 70° C (-4° to 158° F)

Consumption

  • 400 Hz

Electrical Connectors

  • 18 AWG, 24” (61 cm)
  • 18 AWG, 48” (121.92 cm)
  • 18 AWG, 78” (2 metres)
  • 2 feet (0.6 metres) - Conduit
  • 4 feet (1.2 metres) - Conduit
  • 6 feet (2 metres) - Conduit

Environmental Protection

  • Explosion-proof
  • IP66

Excitation Voltage

  • 10-28 Vdc

Humidity

  • 0 to 100 % Relative Humidity, Non-Condensing

NPT Connection

  • 1/4”-18 Male NPT
  • 1/8”-27 Male NPT

Operating Temperature

  • -40° to 85° C (-40° to 185° F)

Pressure Cycles

  • > 100 Million

Pressure Type

  • Absolute
  • Compound Pressure
  • Gauge
  • Sealed Gauge

Reverse Polarity Protection

  • Yes

RFI/EMI Protection

  • Yes

Set Point - Decreasing

  • bar: 0 to 1,379
  • kPa: 0 to 137,900
  • psi: 0 to 20,000

Set Point - Increasing

  • bar: 0 to 1,379
  • kPa: 0 to 137,900
  • psi: 0 to 20,000

Shock

  • 100 G, 11 milliseconds, 1/2 Sine

Storage Temperature

  • -55° to 105° C (-67° to 221° F)

Supply Voltage

  • 10-28 V

Switch Type

  • SPDT

System Pressure

  • bar: 3.5 to 1379
  • kPa: 345 to 137,895
  • psi: 50 to 20,000

Vibration

  • 10 G Peak, 20 to 2,000 Hz

Wetted Materials

  • 316L Stainless Steel
  • 630 Stainless Steel
  • Inconel 718

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