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QDW90A-8-WY Explosion-Proof Temperature Pressure Transmitter
QDW90A-8-WY is a temperature & pressure transmitter designed around “Intrinsically Safe Industrial Signal Isolation.” Separates the hazardous-area industrial signal 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 feature is directly relevant to gas pipeline, chemical process and storage tank 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.
QDW90A-8-WY is a temperature & pressure transmitter designed around “Reliable Temperature Measurement & Conversion.” Provides dependable temperature 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 gas pipeline, chemical process and storage tank projects. Improve measurement clarity and maintenance efficiency in gas pipeline applications, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.
QDW90A-8-WY is a temperature & pressure transmitter designed around “Continuous Monitoring for Fixed Process Equipment.” The dedicated mechanical and connector structure simplifies installation, replacement and field maintenance. The dedicated mechanical, connector or mounting structure helps the instrument fit the intended pipe, tank, cabinet or equipment interface. The feature is directly relevant to gas pipeline, chemical process and storage tank projects. Shorten installation time and simplify later field maintenance, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.
Pressure Long-term Stability:≤0.2% F.S. per year; minimal recalibration required for continuous operation
Temperature Long-term Stability:≤0.1℃ drift per year (Class A Pt1000 sensing element)
Pressure Overpressure Rating:2× full scale continuous safe overload; 3× full scale burst pressure
Temperature Sensing Element:Class A Pt1000 RTD
Pressure Response Time:≤100ms (damping off)
Temperature Response Time:≤300ms (T63 value)
Adjustable Damping:0.1s ~ 10s software-adjustable for both channels
Non-linearity Error:Pressure: ≤±0.25% F.S. (BFSL); Temperature: ≤±0.2℃
Repeatability:Pressure: ≤0.1% F.S.; Temperature: ≤0.05℃
Temperature Compensation Range:-20℃ ~ +80℃ ambient
Fault Alarm Output:3.6mA / 22mA user-selectable fault current
Dimension Chart
Wiring Diagram