Bently Nevada 175794-01

Technical Parameters

Channels: 2 independent rod-position sensor inputs to the Bently Nevada 175794-01

Sensor Types Supported:

Linear variable differential transformers (LVDTs)

Magnetostrictive or potentiometric rod-position transducers

Input Range: ± 10 V DC analog (programmable ± 5 V to ± 15 V spans)

Resolution: 16-bit A/D conversion per channel with in the Bently Nevada 175794-01 (≈ 0.0015 % of span)

Accuracy: ± 0.1 % of full-scale after linearization

Sampling Rate: 1 kHz per channel, simultaneous acquisition

Isolation: ≥ 1 kV channel-to-chassis and channel-to-channel

Input Protection: Overvoltage clamp to ± 30 V; reverse-polarity and surge protection

Environmental:

Operating Temp: 0 °C to +70 °C

Storage Temp: –40 °C to +85 °C for the Bently Nevada 175794-01

Humidity: ≤ 95 % RH, non-condensing

Product function

Position Conditioning: Applies excitation, buffering, and conditioning via the Bently Nevada 175794-01, then digitizes and linearizes to displacement units.

Dynamic Monitoring: Captures high-speed position transients and dwell times for detection of mis-stroking or valve-failure events.

Data Communication: Broadcasts real-time position, velocity, and diagnostic flags over the 3500 backplane digital bus.

Application Areas

Reciprocating Compressors & Engines: Continuous rod-position feedback through the Bently Nevada 175794-01 for surge avoidance and performance tuning.

API-618 Compliance: Meets precision requirements for critical reciprocating-machine protection.

Integrating with DCS/SCADA: Via 4–20 mA or digital-output modules.

Maintenance & Diagnostics: Enables early detection of wear or mechanical binding.