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QDW90A-HF Anti-corrosion Pressure Transmitter for Chemical Liquids

The QDW90A-HF is a corrosion-resistant pressure transmitter designed for reliable measurement in acids, alkalis, and other aggressive chemical liquids, making it ideal for chemical processing, dosing, wastewater treatment, and electroplating.
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QDW90A-HF Anti-corrosion Pressure Transmitter

PTFE Anti-corrosion Structure for Aggressive Media

QDW90A-HF is a pressure transmitter designed around “PTFE Anti-corrosion Structure for Aggressive Media.” Uses corrosion-resistant wetted materials for chemical liquids and aggressive process media. The wetted structure is selected for aggressive media so the measuring point is less exposed to corrosion, residue and premature material damage. The feature is directly relevant to acid / alkali tank, chemical dosing and industrial process projects. Maintain reliable measurement in acid / alkali tank and corrosive media, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.

QDW90A-HF PTFE anti-corrosion pressure transmitter for aggressive chemical media and acid alkali tanks

Pressure Monitoring for Corrosive Liquids

QDW90A-HF is a pressure transmitter designed around “Pressure Monitoring for Corrosive Liquids.” Measures pressure in acid, alkali and chemical liquids with a corrosion-resistant wetted structure. The wetted structure is selected for aggressive media so the measuring point is less exposed to corrosion, residue and premature material damage. The feature is directly relevant to acid / alkali tank, chemical dosing and industrial process projects. Maintain reliable measurement in acid / alkali tank and corrosive media, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.

QDW90A-HF corrosion resistant pressure transmitter for acid alkali tanks and chemical dosing applications

Corrosion-resistant Pressure Signal Output

QDW90A-HF is a pressure transmitter designed around “Corrosion-resistant Pressure Signal Output.” Transfers the measured pressure signal to displays, PLCs or control systems from corrosive process points. The wetted structure is selected for aggressive media so the measuring point is less exposed to corrosion, residue and premature material damage. The confirmed values highlighted here are DC. The feature is directly relevant to acid / alkali tank, chemical dosing and industrial process projects. Keep corrosive pressure points connected to the control system, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.

QDW90A-HF anti-corrosion pressure transmitter sending measured pressure signals to PLC and control systems

Working Principle Diagram

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Technical Specifications

Standard Range Coverage:0–10 kPa / 0–100 kPa / 0–1 MPa / 0–2.5 MPa / 0–6 MPa / 0–10 MPa

Overload Tolerance:Continuous pressure rating of 2 times full scale

Overall Accuracy Class:Standard Class 0.2 ±0.2% FS; optional economy 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 (within the full operating medium temperature range)

Zero/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:≤±0.2% FS/year; ceramic core exhibits no creep, ensuring stable long-term operational data

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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