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Explosion-proof Pressure Transmitter

Explosion-proof Pressure Transmitter
Explosion-proof pressure transmitter is designed for high-explosive hazardous areas(like natural gas pressure transmitter). Ex-proof pressure transmitter adopts imported special materials and advanced MEMS technology to process into integrated pressure core.
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Explosion-proof pressure transmitter-Huaheng Instrument


Explosion-proof pressure transmitter is designed for high-explosive hazardous areas(like natural gas pressure transmitter). Ex-proof pressure transmitter adopts imported special materials and advanced MEMS technology to process into integrated pressure core. Electronic pressure transducers cooperates with precision processing circuit to collect pressure and temperature signals for compensation and output  4-20mA, 0-5VDC, 1-5VDC, 0-10VDC standard signal, with high precision, anti-interference, strong overload and impact capability, moisture resistance and long-term stability, can directly measure -196 ° C liquid for a long time.

There is no need to extend the tube, making the measured value true and reliable. A variety of pressure and electrical interfaces are available for customer selection to meet pressure measurements in a variety of industrial processes. Intrinsically safe explosion-proof pressure transmitterand flameproof pressure transmitter options are available.

Explosion-proof pressure transmitter-Huaheng Instrument

Application range of Explosion-proof pressure transmitter

LNG low temperature pressure measurement, CNG pressure measurement;

Natural gas control system, natural gas compressor, air compressor;

Oil well platform, wellhead pressure equipment, blowout preventer, pipeline equipment, mine, oil tank, oil storage and transportation monitoring, petrochemical equipment, oil refining, oxygen transmission system and pipeline, hydrogen equipment, power station, boiler, heat and power unit, etc.

Petrochemical, environmental protection, air pressure, light industry, machinery, metallurgy

Other pressure measurement environments with explosion protection requirements.

Explosion-proof pressure transmitter-Huaheng Instrument

Performance of Explosion-proof pressure transducers

Measured medium: gases and liquids that are not corrosive to 316L stainless steel

Pressure type: absolute pressure, sealed reference pressure, ventilator pressure, differential pressure

Range: -100kPa ~ 0 ~ 250Pa ~ 1kPa ... 300MPa range can be selected at will

0-1MPa...1.6MPa...2MPa...3MPa...4MPa...5MPa...6MPa...7MPa...

10MPa...15MPa...20MPa...30MPa...40MPa...50MPa...60MPa...80MPa...100MPa...150MPa...200MPa...300MPa

Power supply: standard 24 ± 5 VDC (12 ~ 32 VDC) ·

Output signal: 4-20mA, 1-5VDC, 0-5VDC

Frequency response: 0 to 1 kHz (typical)

Nonlinear: 0.05% FS

Repeatability: 0.05% FS

Comprehensive accuracy: 0.1% FS, 0.2% FS, 0.5% FS

Long-term stability: 0.2% FS / year (typical)

Working temperature: -40 ~ 85 ° C / 125 ° C / 150 ° C / 250 ° C

Insulation resistance: ≥500 MΩ/100V

Safety overload pressure: 150% FS (1.5 times full scale)

Destructive pressure: 300% FS (3 times full scale)

Connection method: 1/4NPT, 1/2NPT, M20×1.5 or specified

Wetted material: diaphragm 17-4PH stainless steel, 316L stainless steel;

Process connection: 1Cr18Ni9Ti

Protection level: IP67

Vibration effect: 5 ~ 1000Hz, amplitude 2mm, X, Y, Z for 30 minutes per direction, output change is less than 0.1% FS

Impact: 50g; X, Y, Z three directions, 20ms per direction; output change less than 0.1% FS

Explosion-proof grade: intrinsic safety: Ex iaIICT4, explosion-proof: Ex dIICT5

Outlet method: direct sealing lead


Smart explosion-proof pressure transmitter outline drawing

Smart explosion-proof pressure transmitter

Standard explosion-proof pressure transmitter outline drawing


Standard explosion-proof pressure transmitter


The pressure transmitters produced by Huaheng Instruments can perform intrinsically safe explosion-proof and explosion-proof explosion-proof. Customers can choose according to their needs, such as: SMT3151GP/AP Pressure/Absolute Pressure Transmitter

SMT3151FTLT Flange Threaded Liquid Level (Pressure) Transmitter

Explosion Proof PT100 Thermocouple Temperature Sensor


Of course, we also share the relevant explosion-proof knowledge of pressure transducers, you can know more about:

10 Methods For Routine Maintenance Of Explosion-Proof Pressure Transmitters

Explosion-Proof Knowledge Of The Instrument

Pressure transmitter selection basis

What Is Differential Pressure Transmitter?

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