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Dwyer Adjustable Pressure Switch, Series APS/AVS

Series APS/AVS Adjustable Pressure Switch

Brand: Dwyer Instruments, LLC
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Miniature Series APS/AVS Adjustable Switches offer reliable switching for pressure/vacuum alarm, shutdown or control.

The units are readily adjustable throughout their range using the locking adjusting ring and indicating pointer. 

The body is constructed of stainless steel for durability in harsh environments. Switches include 12" (30 cm) wire leads sealed with epoxy for additional protection.
Features
  • Field adjustable with simple indicating pointer reduces installation time bring application on-line faster
  • Stainless steel construction provides a durable solution in harsh environments

1 - 8 of 8 Part Numbers
APS-150
APS-150
DWYER Adjustable Pressure Switch, Set Point Range 0.8-28.5 psi (.06-2.0 bar) Increasing, 1.6-30.0 psi (.11-2.1 bar) Decreasing, ± 0.6 psi (.04 bar) Repeatability, 0.8-1.3 psi (.06-.09 bar) Deadband.
  • Pressure Range - Decreasing - psi: 0.8 to 30 (bar: 0.055 to 2.068, kPa: 5.516 to 206.8)
APS-250
APS-250
DWYER Adjustable Pressure Switch, Set Point Range 2.0-48.0 psi (.14-3.3 bar) Increasing, 3.0-50.0 psi (.21-3.5 bar) Decreasing, ± 1.0 psi (0.7 bar) Repeatability, 1-1.7 psi (.07-.12 bar) Deadband.
  • Pressure Range - Decreasing - psi: 2 to 50 (bar: 0.138 to 3.447, kPa: 13.79 to 344.7)
APS-350
APS-350
DWYER Adjustable Pressure Switch, Set Point Range 3.0-96.5 psi (.21-6.7 bar) Increasing, 4.5-100 psi (.31-6.9 bar) Decreasing, ± 2.0 psi (.14 bar) Repeatability, 1.6-4 psi (.11-.28 bar) Deadband.
  • Pressure Range - Decreasing - psi: 3 to 100 (bar: 0.207 to 6.895, kPa: 20.68 to 689.5)
APS-450
APS-450
DWYER Adjustable Pressure Switch, Set Point Range 7.5-242 psi (.52-16.7 bar) Increasing, 9.7-250 psi (.67-17.2 bar) Decreasing, ± 5.0 psi (.35 bar) Repeatability, 2.5-9 psi (.17-.62 bar) Deadband.
  • Pressure Range - Decreasing - psi: 7.5 to 250 (bar: 0.517 to 17.24, kPa: 51.71 to 1,724)
APS-550
APS-550
DWYER Adjustable Pressure Switch, Set Point Range 15.0-485 psi (1.0-33.4 bar) Increasing, 20.0-500 psi (1.4-34.5 bar) Decreasing, ± 10.0 psi (.69 bar) Repeatability, 5-22 psi (.35-1.5 bar) Deadband.
  • Pressure Range - Decreasing - psi: 15 to 500 (bar: 1.034 to 34.47, kPa: 103.4 to 3,447)
AVS-150
AVS-150
  • Pressure Range - Decreasing - Inches Hg: 1.6 to 28.2 (cm Hg: 4.1 to 68.6)
AVS-250
AVS-250
  • Pressure Range - Decreasing - Inches Hg: 4 to 28.2
AVS-350
AVS-350
  • Pressure Range - Decreasing - Inches Hg: 6 to 28.2
1 - 8 of 8 Part Numbers

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Specifications

Brand

Adjustment Type

  • Field Adjustable

Approvals & Certifications

  • UR

Deadband

  • psi: 0.8 to 22 (kPa: 5.5 to 152, bar: 0.05 to 1.52)

Electrical Connectors

  • 20 AWG Insulated with PVC, 12” (30 cm) Length

Electrical Rating

  • 3 A at 28 Vdc
  • 5 A at 250 Vac

Enclosure, Body Material

  • Capsule: 631 Stainless Steel (17-7 PH)

Media

  • Gas
  • Liquids & Gases

NPT Connection

  • 1/8” NPT Female

Process Connection Material

  • 303 Stainless Steel

Proof Pressure

  • 150 % of Range

Sensor / Probe Connection

  • 3-Wire

Set Point - Decreasing

  • bar: 0.05 to 33
  • Inches Hg: 1.6 to 27.1
  • kPa: 5.5 to 3,300
  • psi: 0.8 to 485

Set Point - Increasing

  • bar: 0.11 to 34
  • Inches Hg: 2.7 to 28.2
  • kPa: 11 to 3,400
  • psi: 1.6 to 500

Switch Type

  • SPDT Snap-Action

System Pressure

  • bar: 51.71
  • kPa: 5,171
  • psi: 750 (For 20 to 500 Increasing Range)

Temperature Range

  • -54° to 107° C (-65° to 225° F) (A Set Point Change of up to 2 % when used Below -23° C (10° F) or Above 52° C (125° F)

  • OEM
  • Compressors
  • Motor Control
  • Process Equipment
  • Pump Control

Documentation

Data Sheets

Catalogs

Manuals

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