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S71 Temperature Switches
Weatherproof / Ex d Industrial Series Temperature SwitchesS71 Temperature Switches
The model S71 Temperature Switch comes with a rigid or semi-rigid thermal system and is suitable for setpoints between -40°C and +260°C with maximum working temperatures up to 270°C. (EAC certification is available on request).
Related products
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700 Temperature Switch – Performance Series
Control applications, working temperature up to 300C700 Temperature Switch – Performance Series
The 700 Performance Series switch has a flexible thermal system and is suitable for setpoints between -50°C and 300°C with maximum working temperatures up to 310°C. it is ATEX and IECEx accredited with environment and hermetically sealed options available. All of which can work in traditional process instrumentation industries. This has been part of our product portfolio for many years, the initial product was originally developed in the mid 1970’s, this mature product has undergone several enhancements to ensure it continues to give the level of reliability required today. Available in models 721/2/3, 731/2/3/4, 771/2/3/4 & 781 (EAC certification is available on request).
Key Features
- Precision stainless steel mechanism for arduous atmospheres and high humidity.
- Set point adjustable over whole range against calibrated scale with tamperproof adjuster.
- Weatherproof and Flameproof models.
- Hermetically sealed microswitch option.
- Models for fixed switching differential, adjustable differential and HI-LO operation.
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306 Differential Pressure Switch – Performance Series
Control and alarm for gasses and low diff pressure apps306 Differential Pressure Switch – Performance Series
The 306 Performance Series differential pressure switches utilise a nitrile diaphragm based sensor. This, when coupled with a precision stainless steel mechanism designed to minimise friction in the moving parts, helps deliver the market leading performance customers have come to expect. The model 306 Differential Pressure Switch is suitable for setpoints between -12.5mbar and 4bar with maximum working pressures up to 15bar. Also available in the 386 model (EAC certification is available on request).
Key Features
- Ranges available up to 4 Bar (60 psi)
- Weatherproof IP66 enclosures in zinc alloy or stainless steel
- ATEX and IECEx Ex d Flameproof models available
- Environmentally and Hermetically sealed switch options
- Set-point adjustable over the full range against a calibrated scale with tamperproof adjuster
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VM 2/4 Pressure Switch – Volume Series
Stainless steel made, limited space, harsh environmentsVM 2/4 Pressure Switch – Volume Series
The VM pressure switch offers a compact and cost effective solution for any application where reduced space and resistance to aggressive atmospheres is necessary. Performance is assured by utilising Delta Mobrey’s proven sensor technology in a new simple, one-piece enclosure.
Key Features
- Wellhead control safety shutdown systems
- Water or gas deluge fire protection systems
- Fuel and lubrication systems, as found on gas turbines, compressors and other rotating machinery
- Valve actuators
The range of models available for these cost effective switches include: general purpose applications, or those outdoor applications such as marine where the atmosphere may be more aggressive. The model VM Pressure Switch is suitable for setpoints between 0 and 700 bar with maximum working pressures up to 1000bar. (EAC certification is available on request).
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Differential Pressure Transmitter D31 – D-Series
HART Communication, aluminium or stainless steel enclosureDifferential Pressure Transmitter D31 – D-Series
The D31 SMART Differential Pressure Transmitters are suitable for measuring differential pressure of gases, vapours and liquids. The active sensing element is a piezoresistive silicon sensor separated from the medium by a diaphragm and by a specially selected type of manometric liquid. The special design of the active sensing element ensures that it is able to withstand pressure surges and overloads of up to 250/320/413 bar. The casing is made of cast aluminium alloy or 316 stainless steel with a IP66/IP67 rating. The design of the casing enables the use of a local display, rotation of the display by 90°, rotation of the casing by 0–355° relative to the sensor, and a choice of cable direction.
The D31 Differential Pressure Transmitter is suitable for measuring pressures from -100mbar to 70bar with maximum working pressures up to 413 bar.
Key Features
• Die cast weatherproof enclosure to IP66 (NEMA 4).
• Stainless steel mechanism.
• Internal tamperproof set point adjustment.
• Calibrated scale.
• Set point adjustment from -2.5mbar (-1 in H2O) up to 1.6 bar (20psi) dependent on model.
