Explosion-proof electronic pressure transmitter

Explosion-proof Pressure transmitter, or explosion-proof pressure transducer, with the explosion-proof enclosure.

For applications in hazardous areas,

For installation in Class I, Division 1 hazardous areas

Flameproof ExdIIBT5Gb;

(explosion-proof certificate no. :CE16.1163)

Intrinsically safe ExiaIICT4/T5/T6Ga;

(explosion-proof certificate no. : CE15.2354X);

The Series SIEP489 Explosion-proof pressure Transmitter is a microprocessor-based high-performance transmitter,

which has flexible pressure calibration,

push button configuration,

and programmable using HART® Communication.

We also supply industrial pressure sensors,

and explosion proof differential pressure transmitter.

All our electronic pressure transducers can be offered with Explosion-proof.

Select a flameproof pressure transmitter with Ex d type certification,

and a 4-20mA output signal for installations,

which require the use of devices & enclosures,

which are designed to contain internal explosions,

to prevent ignition of explosive atmospheres surrounding the equipment,

in designated flameproof zones.

Features of SIEP489 Explosion-proof pressure transmitter

explosion-proof pressure transmitter
explosion-proof pressure transmitter
  • FM approved as “explosion-proof” for class I, div. 1 hazardous areas
  • Available with ATEX approval “flameproof enclosure” for II 2 G Ex d II C
  • Current or voltage output
  • Designed for harsh ambient conditions
  • Low-power version available as an option

The Series SIEP489 Smart Pressure Transmitters have been designed,

for the high demands of industrial oil and gas applications.

The Series SIEP489 is capable of being configured with the zero and span buttons,

a field calibrator is not required for configuration.

The transmitter software compensates for thermal effects,

improving performance.

The Series 3200G is FM approved for use in hazardous (Classified) locations.

The 40:1 rangeability allows the smart transmitter,

to be configured to fit any application.

These pressure transmitters can be delivered with analog signals including 4 … 20 mA or a low-power version with 1 … 5 VDC.

They feature exceptionally high resistance to vibration,

pressure spikes and moisture ingress.

Explosion-proof electronic pressure transmitter
Explosion-proof electronic pressure transmitter


these pressure transmitters fulfil IP 67 (NEMA 4x) ingress protection.

On each individual instrument,

comprehensive quality control and calibration are performed,

so that an accuracy of ≤ 0.25 % BFSL can be ensured.

Temperature compensation guarantees accuracy and long-term stability, even with strong fluctuations in the ambient temperature.

The models SIEP489 are suitable for sour gas applications,

and feature particularly high resistance,

against sulfide stress cracking when in contact with sulfurous gases.

The pressure transmitters are approved as “explosion-proof” for class I, II, III, Div. 1 hazardous area to FM and CSA,

as well as “flameproof” for II 2 G Ex d II C to ATEX.

Specifications of SIEP489 explosion-proof pressure transmitter:

  • Accuracy: ±0.25%, ±0.50% or ±1.00% span
  • Pressure Ranges: 1.5 to 10,000 psi; absolute ranges available
  • IP65 housing; 304 stainless steel
  • Wetted material: all-welded 316L stainless steel
explosion-proof pressure transmitter drawing
explosion-proof pressure transmitter drawing

Applications of explosion-proof pressure transmitter

Oil & Gas equipment needs a pressure transducer,

that is reliable and able to withstand extreme environmental and pressure conditions.

  • Borehole monitoring
  • Oil Field Equipment
  • Refineries and petrochemical industry
  • Drilling platforms and pipelines
  • Upstream Oil and Gas Production
  • Natural Gas Compression and Transfer Control
  • Alternative Energy     
  • Industrial and OEM Applications

We also supply WIKA pressure transmitters and WIKA explosion-proof pressure transmitters.

You can just contact us for more Information.

Contact us now to see how we can help you with a pressure gauge solution that fits your exact needs.


What is specified by the temperature coefficient and how is it important to my readings?

As the ambient temperature changes, the output current will drift slightly.

The temperature coefficient specifies the amount of drift per °F/°C.

Since the temperature affects the transmitter output,

the temperature coefficient is important to accuracy of your reading.

To the high-temperature pressure transmitter.

Know More About Explosion-proof pressure transmitter

Explosion-proof pressure transmitters are available in a wide range of specifications,
easy to install and use, safe and explosion-proof.
They can be widely used in petrochemical, electric power, metallurgy, pharmaceutical, food processing, and other industries.

Products comply with the “IEC” standard, and explosion-proof pressure transmitters are internationally renowned.
The company’s high-precision, high-stability pressure sensor components,
through high-reliability amplifier circuit and precise temperature compensation,
convert the absolute or gauge pressure of the measured medium into 4~20mA, 0~5VDC, 0~10VDC, and 1~5VDC.
Such as standard electrical signals.
High-quality sensors hermetically sealed soldering technology,
and a complete assembly process ensures excellent quality and performance.
The product is available in a variety of interface styles,
and a variety of lead styles to best meet customer needs,
and is suitable for use with a variety of measurement and control equipment.

Explosion-proof pressure transmitter working principle

The explosion-proof pressure transmitter consists of an integrated intelligent sensor and peripheral circuits.
The sensor part is composed of a pressure sensor,
a signal modulation circuit, a dedicated digital processing chip,
a temperature sensor and data memory,
and the peripheral electronic circuit part is composed of an LCD display,
function keys and an EMC circuit.
The pressure signal is converted into an electrical signal by the pressure sensor,
and the electrical signal is modulated,
and sent to a dedicated digital processing chip for data processing,
and then converted into a 4~20 mA output signal corresponding to the pressure signal,
and the HART digital signal is superimposed on the current signal for communication.

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Please provide your measurement parameters or details. Sino-Instrument support customer customization and OEM

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Explosion-proof Pressure Transmitter
USD 200
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