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PF60 Perseus Ultra Low Pressure Switch
Brand: Pyropress Engineering Company LimitedThis 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 0.4 to 55 mbar
- ATEX/IECEx Flameproof version II 2 G Ex db IIC T6...T5 Gb (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 CE II1G Exia IIC T5 -50° to +72° C & T4 -50° to +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)
Specifications
Accuracy
- ± 1 % at 20° C
Switch Type
- 1 or 2 x SPDT
Set Point - Increasing
- kPa: 0.04 to 5.5
- mbar: 0.4 to 55
- psi: 0.0058 to 0.798
Set Point - Decreasing
- kPa: 0.04 to 5.5
- mbar: 0.4 to 55
- psi: 0.0058 to 0.798
Deadband
- 0.2 to 7.5 mbar
Microswitch Rating
- 2 A at 250 Vac Inductive
- 3 A at 30 Vdc Inductive
- 5 A at 250 Vac / 30 Vdc Resistrive
Electrical Connectors
- 1/2” NPT Adaptor
- M20
- M25 Adaptor
Tube Connection
- 1/4” O.D. Tube
- 10 mm O.D. Tube
- 12 mm O.D. Tube
- 6 mm O.D. Tube
- 8 mm O.D. Tube
NPT Connection
- 1/2” NPT Female
- 1/4” NPT Female
- 1/4” NPT Male
BSP Connection
- 1/4” BSPP Female
- 1/4” BSPT Female
- 1/4” BSPP Male
Operating Temperature
- -50° to 150° C (-58° to 302° F)
Operating Pressure
- psi: -5.1 to 5.1 (kPa: -35 to 35, bar: -0.35 to 0.35)
Maximum System Pressure
- psi: 5.08 (kPa: 35, bar: 0.35)
Diaphragm Material
- Nitrile
- Viton
Enclosure, Body Material
- Switchcase & Covers: 316 Stainless Steel
- Switchcase: Black Anodised Aluminum
Wetted Materials
- 316 Stainless Steel
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)
NACE & NIST
- NACE MR-0175
Approvals & Certifications
- SIL 2
- ATEX/IECEx
Environmental Protection
- IP66
- IP67