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QDW90A-3051 High Accuracy Smart Pressure Transmitter for Process Control

A high-accuracy (0.075%/0.1%), HART-enabled smart pressure transmitter with IP66/explosion-proof housing for reliable chemical, pipeline, and demanding process control.
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QDW90A-3051 High Accuracy HART Pressure Transmitter

QDW90A-3051 high accuracy pressure transmitter with 0.075 and 0.1 percent accuracy

High-accuracy Pressure Conversion

QDW90A-3051 is a pressure transmitter designed around “High-accuracy Pressure Conversion.” Supports 0.075%, 0.1% for stable pressure measurement and system integration. The stated operating range, accuracy, response, overload or stability feature supports more dependable data under changing field conditions. The confirmed values highlighted here are 0.075%, 0.1%. The feature is directly relevant to chemical process, steam pipeline and pressure monitoring projects. Maintain clearer trend data during long-term industrial operation, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.

QDW90A-3051 smart pressure transmitter for reliable chemical process and pipeline pressure measurement

Reliable Pressure Measurement & Conversion

QDW90A-3051 is a pressure transmitter designed around “Reliable Pressure Measurement & Conversion.” 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 chemical process, steam pipeline and pressure monitoring projects. Improve measurement clarity and maintenance efficiency in chemical process applications, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.

QDW90A-3051 explosion proof smart pressure transmitter with 4-20mA HART signal transmission

Explosion-proof Smart Pressure Transmission

QDW90A-3051 is a pressure transmitter designed around “Explosion-proof Smart Pressure Transmission.” Separates the hazardous-area pressure loop from the safe-side control system. The isolated signal path separates the hazardous-area device from the safe-side control system and helps limit unwanted electrical interaction across the barrier. The confirmed values highlighted here are 4–20mA. The feature is directly relevant to chemical process, steam pipeline and pressure monitoring projects. Protect hazardous-area loops while keeping safe-side data stable, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.

Technical Specifications

Zero Temperature Drift (within compensated range):±0.01% F.S./℃


Sensitivity Temperature Drift (within compensated range):±0.01% F.S./℃


Non-linearity Error:≤0.075% F.S. (calculated by Best Fit Straight Line, BFSL)


Repeatability Error:≤0.025% F.S.


Hysteresis Error:≤0.025% F.S.


Long-term Stability:≤±0.1% F.S./year; ≤±0.2% F.S. over 5 years


Range Turndown Ratio:10:1 standard; up to 100:1 via digital configuration


Zero Migration:Full positive and negative digital zero adjustment across the entire range


Damping Adjustment:0 ~ 32s software adjustable, 0.1s step


Step Response Time:≤100ms (without damping)


Output Ripple:≤5mV peak-to-peak


Output Short-circuit Protection:Continuous short-circuit tolerant; no permanent component damage


Reverse Polarity Protection:Full protection against reversed power wiring; no damage or reverse leakage

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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