Explosion Proof Pressure Transmitters Selection Tips for Hazardous Chemical Areas

In flammable‑explosive industrial scenarios such as petrochemical and natural‑gas industries, safety, accuracy and stability of pressure monitoring are core priorities for production and operation. The explosion‑proof pressure transmitter is an industrial measurement‑and‑control device custom‑built for hazardous working conditions. It accurately collects pressure data of liquid, gas and steam media, and converts data into standard 4‑20 mA current signals, voltage signals and RS485 digital signals to realize remote transmission and intelligent management of pressure readings. It serves as a key component for explosion‑proof industrial automatic control systems.

Its core advantage lies in superior explosion‑proof performance. Adopting mature flame‑proof enclosure design, the product holds high‑grade explosion‑proof certification Ex db IIC T6 Gb. Equipped with dedicated explosion‑proof housing and sealing structure, it effectively isolates electric arcs and high temperature generated by internal electrical components, eliminates risks of igniting external explosive gas‑air mixtures, and removes potential safety hazards at source. It can operate stably over long periods in various high‑risk explosive environments and fully complies with industrial explosion‑proof standards.

Powered by advanced sensing and calibration technologies, the explosion‑proof pressure transmitter delivers outstanding measurement performance and environmental adaptability. The built‑in intelligent digital temperature compensation system precisely offsets measurement errors induced by temperature fluctuations, featuring a wide operating‑temperature range. Zero‑point and full‑scale temperature drift is as low as ±0.02%FS/℃. Multiple accuracy grades from ±0.25%FS to ±1%FS are optional. Coupled with fast response and long‑term stability ≤±0.2%FS/year, it ensures accurate and reliable continuous measurement.

Reinforced comprehensive protection is implemented to cope with harsh industrial conditions. The housing is constructed from 304, 316 stainless steel and special‑grade 17‑4PH material for excellent corrosion resistance and anti‑aging performance. It features strong shock‑resistance, vibration‑resistance and overload‑resistance. Low‑range models withstand 150%FS overload and 300%FS burst pressure; high‑range versions support 300%FS overload and 500%FS burst pressure, and resist mechanical shock up to 100 g. Furthermore, integrated lightning protection, radio‑frequency and electromagnetic‑interference resistance adapts it to heavy‑EMI sites. Its IP65 protection rating provides reliable dust‑proof, water‑proof and weather‑proof capacity.

Rich configurations bring great compatibility. Measuring range covers ‑1~0 Bar up to 1000 Bar. Output options include 4‑20 mA, 0‑5 VDC and 0‑10 VDC, supporting 2‑wire and 3‑wire wiring with wide‑range 9‑28 VDC power supply. Multiple pressure and electrical interfaces such as M20*1.5, G1/4 and NPT1/4 enable flexible installation and easy connection with diverse industrial pipelines and equipment.

Widely deployed in petrochemicals, natural‑gas facilities, explosion‑proof hydraulic‑pneumatic control and industrial explosion‑proof process measurement‑and‑control, this explosion‑proof pressure transmitter features high safety, reliability, precision, stability and broad compatibility. It perfectly fits various high‑risk explosion‑proof automatic measurement‑and‑control scenarios, furnishing solid data support and equipment guarantee for safe industrial production and intelligent operation management.