Model MA
Diaphragm pressure switch
Flameproof enclosure Ex d

Applications

Pressure monitoring and control of processes
Safety-critical applications in general process instrumentation, especially in the chemical and petrochemical industries, oil and gas industries, power generation incl. nuclear power plants, water/wastewater industries, mining
For gaseous and liquid, aggressive and highly viscous or contaminated media, also in aggressive ambience


Special Features

No power supply needed for switching of electrical loads
Robust switch enclosure from aluminium alloy, IP 66, NEMA 4X
Setting ranges from 0 ...16 mbar to 0 ... 600 bar, vacuum ranges
Repeatability of the set point ≤ 1 % of span
1 or 2 independent set points, SPDT or DPDT, high switching power up to AC 250 V, 20 A


Description

These high-quality pressure switches have been developed especially for safety-critical applications. The high quality of the products and manufacturing in accordance with ISO 9001 ensure reliable monitoring of your plant. In production, the switches are traced by quality assurance software at every step and subsequently are 100 % tested. All wetted materials are from stainless steel as a standard.
In order to ensure as flexible operation as possible, the pressure switches are fitted with micro switches, which enable the switching of an electrical load of up to AC 250 V, 20 A directly.
For lower switching power ratings, such as for PLC applications, argon gas-filled micro switches with gold-plated contacts can be selected as an option.

For applications with special requirements on the wetted parts, versions with materials from PTFE, Monel or Hastelloy are available.

By using a diaphragm measuring system, the model MA pressure switch is extremely robust and guarantees optimaloperating characteristics.

For setting ranges from 4 ... 40 bar a piston replaces or completes the diaphragm as a measuring element. The wetted parts of this variant from stainless steel are particularly suited for liquid media.

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  Model MA Diaphragm pressure switch OI_MA_MW_en_7576.pdf
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  德国
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  Model MA Diaphragm pressure switch DS_PV3111_en_co_1754.pdf
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  德国
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  Model MA Diaphragm pressure switch OI_MAH_MAG_MWH_MWG_en_62568.pdf
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  德国
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  Model MA Diaphragm pressure switch OI_2inch_pipemounting_D_GB_7583.pdf
  1284 KB
  德国