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201 Pressure Switch – Performance Series
Bellows Actuated for high performance on control style applications201 Pressure Switch – Performance Series
Initially designed in the mid-70s and developed over subsequent years. the Performance Series range of pressure switches offers the broadest range of options, the highest levels of set-point repeatability all combined with the long-term performance and confidence of a well-established product.
Performance Series models 201/202/203/281 utilise a bellows type sensor that offers a very linear response to pressure change. This sensor, 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 from the series.
This range of pressure switches has been most successful in industries which may have corrosive atmospheres or need products that are resistant to chemical attack, such as the Oil and Gas, Chemical, Petrochemical, Power and Food.
The 201 Presure Switch is suitable for setpoints between -1bar and 75bar with maximum working pressures up to 100bar. Available in models 202, 203 and 281 (EAC certification is available on request).
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 ATEX and IECEx.
- Safety vented or blow out device as standard.
- NACE MR-01-75 compatibility.
- Hermetically sealed microswitch option.
- Models for fixed switching differential, adjustable differential and HI-LO operation.
- Precise and accurate operation guaranteed by use of hydraulic formed bellows, or capsule stack.
Related products
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207 Diaphragm Actuated Absolute Pressure Switch – Performance Series
For absolute pressure measurement & control207 Diaphragm Actuated Absolute Pressure Switch – Performance Series
As part of the Delta Mobrey Performance Series, model version 207 has been manufactured specifically for applications which need to understand levels of absolute pressure, the 207 pressure switch incorporates a sealed reference vacuum for true absolute pressure sensing.
This concept for this robust range of products was developed over 50 years ago. Each model has gone through a range of modifications and enhancements since then, ensuring these products give a consistent level accurate measurement in industries where chemical attack is possible. The Performance range is robust and a hardworking fundamental set of instrumentation.
The 207 Pressure Switch is suitable for setpoints between 0 and 1 bar absolute with maximum working pressures up to 3 bar. (EAC certification is available on request).
Key Benefits
- Ranges available from 0 to 1 bar
- 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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D34 Differential Pressure Transmitter – D Series
Designed for gas, ATEX/IECEx certifiedD34 Differential Pressure Transmitter – D Series
The D34 measures the differential pressure of gases. Typical applications include the measurement of blast pressure, chimney draughts or pressure/underpressure in furnace chambers. The transmitter can withstand overpressure up to 1 bar. The housing of the electronic circuit is IP66/67 rated.
Key Features
- High accuracy ±0.1%
- 4-20mA analogue with digital communications
- Fully HART ® compatible
- ATEX certified and IECEx
- Ability to locally configure measuring range
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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.
• ECAS Certified (Emirates Conformity Assessment Scheme) -
D35 Differential Pressure Transmitter – D-Series
Aluminium or stainless steel enclosure, for all applicationsD35 Differential Pressure Transmitter – D-Series
The model D35 Differential Pressure Transmitter comes fitted with two diaphragm seals. It is suitable for measuring pressures from -100mbar to 70bar with maximum working pressures up to 420bar. The D Series SMART Differential Pressure Transmitter is suitable for a wide range of applications for measuring differential pressure, level and flow.
Key Features
- ATEX – Flameproof and Intrinsically Safe IECEx – Flameproof and Intrinsically Safe
- High accuracy ±0.1%
- Fully HART ® compatible
- 4-20mA analogue with digital communications
- Fully welded sensor guarantees tightness of oil systems for long term usage
- Programmable range, zero shift, characteristic and damping ratio with local panel keys
- Linearisation of output signal on 20 point curve for specific application is available
- Write protection option through DKAP-03 communicator, ‘D-Soft’ program or software using library EDDL
