Description
Woodward 9905-966
Technical Specifications
- Measurement Type: Gauge or Absolute Pressure.
- Output: 4-20 mA or 0-5 VDC.
- Pressure Range: Specific range (e.g., 0-150 PSI, 0-3000 PSI).
- Accuracy: ±0.25% to ±0.5% BFSL.
Functional Features
- High Stability: Minimal drift over temperature and time.
- Vibration Resistance: Solid-state construction withstands turbine vibration.
- Fast Response: Millisecond response time for dynamic pressure events.
- EMI Immunity: Shielded electronics prevent false readings.
Application Scenarios
Lube oil pressure, fuel supply pressure, hydraulic actuator pressure, and compressor discharge pressure monitoring.
Performance Parameters
- Overpressure: 2x full scale without damage.
- Temperature Compensation: -40°C to +85°C.
Material Composition
316L Stainless Steel wetted parts. Hermetically sealed sensing element. Polyurethane or PVC cable jacket.
Structural Characteristics
Compact cylindrical body with a 1/4″ NPT or G1/4 process connection. Integral cable or DIN connector.
Working Principle
A strain gauge or piezoresistive element deforms under pressure, changing its electrical resistance. A Wheatstone bridge circuit converts this change into a proportional voltage/current.
Installation Requirements
Use Teflon tape or sealant on threads (avoid blocking the port). Orient the sensor to prevent fluid trapping. Route cable away from VFDs.
Usage Precautions
- Do not exceed the burst pressure.
- Avoid water hammer or pressure spikes during startup.
- Calibrate periodically using a deadweight tester.
