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QDW90A-G High Temperature Pressure Transmitter for Steam Pipelines

A high-temperature pressure transmitter with extended heat dissipation for reliable, accurate monitoring of steam, hot water, and thermal oil up to 350°C.
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QDW90A-G High Temperature Pressure Transmitter

High-temperature Structure for Hot Process Media

QDW90A-G is a pressure transmitter designed around “High-temperature Structure for Hot Process Media.” Separates sensitive electronics from hot process media for more reliable long-term measurement. The high-temperature arrangement protects sensitive electronics from continuous heat while maintaining a direct measurement path to the process. The feature is directly relevant to steam pipeline, process pipeline and industrial process projects. Keep measurement electronics away from continuous high-temperature stress, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.

QDW90A-G high temperature pressure transmitter with extended heat dissipation structure for hot process media

Hirschmann Connector for Reliable Field Wiring

QDW90A-G is a pressure transmitter designed around “Hirschmann Connector for Reliable Field Wiring.” Provides dependable pressure measurement for industrial automation systems. The product is organized around this specific field requirement without adding unrelated functions to the measuring point. The feature is directly relevant to steam pipeline, process pipeline and industrial process projects. Improve measurement clarity and maintenance efficiency in steam pipeline applications, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.

QDW90A-G high temperature pressure transmitter with Hirschmann connector for steam pipeline measurement

Clear On-site Display for Faster Inspection

QDW90A-G is a pressure transmitter designed around “Clear On-site Display for Faster Inspection.” Displays the measured value directly at the process point for easier inspection and commissioning. The local display makes the live value and operating state easier to verify during commissioning, inspection and routine maintenance. The feature is directly relevant to steam pipeline, process pipeline and industrial process projects. Check operating status directly without opening the control system, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.

QDW90A-G high temperature pressure transmitter with on-site display for steam pipeline inspection

Working Principle Diagram

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Technical Specifications

Measurement Type:Gauge pressure (G), absolute pressure (A), and negative pressure/vacuum options available

Standard Range Coverage:0–10 kPa / 0–100 kPa / 0–1 MPa / 0–2.5 MPa / 0–10 MPa / 0–40 MPa

Overall Accuracy Class:Standard Class 0.2: ±0.2% FS; optional economy version Class 0.5: ±0.5% FS

Independent Nonlinearity Error:≤±0.1% FS

Hysteresis and Repeatability Errors:≤±0.05% FS

Temperature Drift Across the Full Temperature Range:≤±0.05% FS/°C (across the entire operating medium temperature range)

Zero Point / Full-Scale Temperature Drift:≤±0.03% FS/°C

Step Response Time:≤20 ms (10%–90% full scale step); supports customized damping parameters for smooth output

Long-Term Stability:≤±0.25% FS/year

Standard Output Signal:4–20 mA two-wire; optional 0–5 V / 0–10 V three-wire, RS485 Modbus-RTU digital output

Dimension Chart

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Wiring Diagram

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Phone: +86-19715617532
Add: Building 14, University Science and Technology Park, Fenghuangshan Economic Development Zone, Xiangshan District, Huaibei City, Anhui Province

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