Description
Foxboro P0922VT
Technical Specifications
- Model: P0922VT.
- Signal Types: 4-20 mA, 0-10 V, Dry Contacts.
- Isolation: Channel-to-channel and channel-to-bus.
- Power: 24 VDC Backplane powered.
Functional Features
- Flexible Configuration: Software-configurable signal types, ranges, and alarm thresholds.
- Fail-Safe Outputs: Configurable output state (Hold, Zero, Safe) on communication loss.
- Noise Immunity: Differential inputs and多重 filtering to suppress field noise.
Application Scenarios
Connecting pressure transmitters, level gauges, and control valves in standard industrial process loops.
Performance Parameters
- Load Capability: Output loop drives 600Ω at 4-20 mA.
- Resolution: 12-bit or 16-bit conversion.
- Protection: IP20.
Material Composition
Industrial-grade components, conformal-coated PCB. Flame-retardant housing with EMI shielding.
Structural Characteristics
Standard FBM form factor with clear channel numbering and status LEDs. DIN rail mounting.
Working Principle
Input module converts 4-20 mA to voltage, then A/D. Output module converts digital value to D/A, then V/I. All data exchanged via fieldbus.
Installation Requirements
Use shielded twisted-pair for analog signals; ground shield at one end. Ensure output load impedance is within limits.
Usage Precautions
Configure output fail-safe state based on process safety requirements. Avoid running signal cables parallel to power lines.
