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Perseus Range - Intrinsically Safe Differential Pressure Switches

ATEX & IECEx CEII1G Exia IIC 
T6 Ta = -50 to +78°C & T5 Ta = -50 to +93°C & T4 Ta = -50 to +128°C

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Description
  • ATEX & IECEx CEII1G Exia IIC 
    T6 Ta = -50 to +78°C & T5 Ta = -50 to +93°C & T4 Ta = -50 to +128°C
  • Single or dual microswitch option (simultaneous or adjustable) with adjustable deadband option.
  • Internal adjustment scale
  • 316 Stainless steel or black anodised aluminium switchcase to IP66 & IP67 standards
  • Proven and documented SIL 2 IEC 61508 suitability.

Available switches:

Differential pressure : 0.4 mBar to 8 Bar

This range of switches features a robust high quality housing with 1 or 2 sealed SPDT

micro switches and has been designed for use in environments where explosive gases can be present (e.g. gas fields, oil rigs & chemical plants etc). Micro switches can be set for single, dual simultaneous, or dual independently adjustable operation. Environmentally sealed or hermetically sealed micro switch options are available.

The Perseus range has separate electrical and adjustment chambers meaning that set point adjustment can be carried out with the power on and the switch in operation. The stainless steel housing is available with one or two electrical entries.

The Perseus pressure, vacuum, differential pressure, temperature, and level switches are designed for use in environments where explosive gases and dust can be present (e.g. Gas fields, Oil rigs and Chemical plants etc.) and have been ATEX and IECEx certified as detailed overleaf (SIL2 - IEC 61508 proven reliability).

These switches are manufactured from a high quality casting which offers robust construction and protection to IP66 & IP67 for use within heavily polluted industrial environments. A special feature of the instruments is the separation of the flameproof and adjustment compartments allowing for safe on-site adjustment of the set point with power on and the switch in operation.

The design features a simple form of adjustment against a calibrated scale. This enables a user to order switches set at a predetermined point or stock a mid range setting and adjust switches to suit the particular application. The set point can be safely adjusted with the switch electrically live. Adjustment is made by removing the access cover and rotating the set point adjuster using a suitable tommy bar or allen key. The setting is read from the centre of the set point adjuster against the scale. Rotation to the left will increase the set point and to the right decrease it.

Industrial Technical Services from Mississauga, Ontario is a single source Instrumentation and Automation company. We provide certified calibrations, PLC programming, custom controls and Panels.

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Product Details
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