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Instantly add the PF61 / PF62 Perseus Low Pressure Switch and 50,000+ more product series to your store or catalog  
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Pyropress Pressure Switch, PF61 / PF62 Perseus Low

PF61 / PF62 Perseus Low Pressure Switch

Brand: Pyropress Engineering Company Limited
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This range of switches features a robust high quality housing with 1 or 2 sealed SPDT microswitches and has been designed for use in environments where explosive gases can be present (e.g. gas fields, oil rigs & chemical plants etc). 

Microswitches can be set for single, dual simultaneous, or dual independently adjustable operation. Environmentally sealed or hermetically sealed microswitch options are available.

One of the benefits of the Perseus range is the separation of the flameproof and adjustment chambers allowing adjustment of the set point with power on and the switch in operation. The housing is available with one or two electrical entries.
Features
  • 316 Stainless steel or black anodised aluminium switchcase to IP66 & IP67 standards
  • Wetted parts NACE MR-01-75 complaint
  • SIL 2 – IEC61508 proven reliability
  • Single or dual microswitch option
  • Setting from 8 to 250 mbar
  • ATEX/IECEx Flameproof version II 2 G Ex db IIC T6...T5 Ga (Tamb -50° C to +75° C...+90° C) (with or without resistors)
  • ATEX/IECEx Intrinsically safe version II 1 G Ex ia IIC T6...T2 Ga (Tamb -50° to 78˚ C...93° C) (without resistors)
  • ATEX/IECEx Intrinsically safe version II1G Ex ia IIC T5...T2 Ga (Tamb  -50° to +72° C...+122° C) (with resistors)
  • ATEX/IECEx Intrinsically safe version II 1 D Ex ia IIIC T135° C Da (Tamb -50° to 70° C) (with or without resistors)

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Specifications

Brand

Accuracy

  • ± 1 % at 20° C

Set Point - Increasing

  • Inches Wg: 5 to 100
  • kPa: 0.8 to 25
  • mbar: 8 to 250
  • psi: 0.116 to 3.626

Set Point - Decreasing

  • Inches Wg: 5 to 100
  • kPa: 0.8 to 25
  • mbar: 8 to 250
  • psi: 0.116 to 3.626

Deadband

  • 4 to 20 mbar

Switch Type

  • 1 or 2 x SPDT

Enclosure, Body Material

  • Switchcase & Covers: 316 Stainless Steel
  • Switchcase: Black Anodised Aluminum

Diaphragm Material

  • Neoprene
  • Nitrile
  • Viton

Wetted Materials

  • 316 Stainless Steel

BSP Connection

  • 1/4” BSPP Female

NPT Connection

  • 1/4” NPT Female

Electrical Connectors

  • 1/2” NPT Adaptor
  • M20
  • M25 Adaptor

Microswitch Rating

  • 2 A at 250 Vac Inductive
  • 3 A at 30 Vdc Inductive
  • 5 A at 250 Vac / 30 Vdc Resistrive

Operating Temperature

  • -50° to 150° C (-58° to 302° F)

Maximum System Pressure

  • psi: 100 (kPa: 689.5, bar: 7)

Environmental Protection

  • IP66
  • IP67

NACE & NIST

  • NACE MR-0175

Approvals & Certifications

  • ATEX/IECEx

Ambient Temperature

  • -40° to 85° C (-40° to 185° F)
  • -50° to 125° C (-58° to 257° F) Optional

Storage Temperature

  • -50° to 85° C (-60° to 185° F)

Documentation

Data Sheets

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