Woodward 8280-414 Dual-Input Position Transmitter

Product Brief Introduction Dual-input position transmitter that accepts two LVDT/RVDT sensors for dual position monitoring or redundant sensing.
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Technical Specifications 2 independent inputs: supports LVDT / RVDT; 2 4–20 mA outputs; Supply: 24 V DC ±10%; Per-channel accuracy: ±0.25% FS; Operating temperature: -40 °C to +80 °C; Enclosure: IP40.

Functional Features Dual channels operate independently; supports linear / rotary sensor mix; per-channel zero/span adjustment; independent sensor fault detection.

Application Scenarios Dual-redundant position feedback, valve dual-point monitoring, actuator both-end displacement detection, safety-related position loops.

Performance Parameters Channel-to-channel isolation: 500 V AC; Per-channel linearity: ±0.25% FS; Crosstalk: < -60 dB.

Material Composition Flame-retardant housing; dual-channel demodulation circuits; independent output stages; insulated terminals.

Structural Characteristics DIN rail mountable; front dual-channel status LEDs; rear terminal block.

Working Principle Two independent demodulation channels process two displacement sensor signals separately, each converting to a 4–20 mA output, with full electrical isolation between channels.

Installation Requirements Mount on DIN rail; connect two sensors separately; calibrate each channel independently; label corresponding measuring points.

Usage Notes Calibrate both channels separately; check sensor health periodically; route output loops separately.




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