Product Description

Overview

The Bently Nevada 1034549-20 1701/15 FieldMonitor Proximitor Input Module is a dual-channel monitor designed for distributed machinery protection. It serves as the interface between non-contacting displacement transducers (Proximitor® probes) and the 1701 FieldMonitor system, converting raw signals into engineering units for vibration, displacement, and shaft centerline monitoring.

This module is widely used on skid-mounted equipment, including gas turbines and compressors, where proximity probes must be processed close to the machine to reduce noise and signal degradation. Its compact design allows direct mounting in the FieldMonitor terminal base, minimizing long analog cable runs.

Key Features

Dual-Channel Monitoring

• Supports two independent proximity probe inputs for simultaneous measurement of radial vibration, axial displacement, and shaft position.

• High-precision amplification, filtering, and linearization ensures accurate, stable signals suitable for real-time monitoring and alarm generation.

Programmable Alarm Logic

• Each channel features two alarm levels: Alarm 1 (Alert) and Alarm 2 (Danger).

• Configurable time delays (0.15–20 seconds) prevent false trips caused by transient noise or vibration spikes.

• Hysteresis (0.5% full scale) stabilizes alarm operation near setpoints.

Built-In Diagnostics

• Continuously monitors probe and wiring health to detect faults, cable breaks, or sensor failures.

• Internal self-test routines verify module electronics for reliable operation in industrial environments.

Rugged Field Design

• Engineered for mounting near machinery in enclosures, reducing noise and cable length.

• Reliable operation across extreme temperatures from -30°C to +85°C (-22°F to +185°F).

Technical Specifications

Applications

• Distributed vibration and displacement monitoring for gas turbines, compressors, and skid-mounted machinery.

• Interfaces directly with Bently Nevada FieldMonitor 1701/15 and 3500 series systems.

• Ideal for industrial setups where reduced cable length and field-mounted I/O are critical.

FAQ

Q: Can this module measure both vibration and shaft position?
A: Yes, it measures radial vibration, axial displacement, and shaft centerline position.

Q: What type of sensors are supported?
A: Bently Nevada Proximitor® probes including 3300, 7200, and 3300 XL series.

Q: Is it suitable for harsh industrial environments?
A: Yes, it operates from -30°C to +85°C and includes diagnostics for probe and wiring integrity.

Q: Does it support multiple alarms?
A: Each channel supports two programmable alarms with configurable delays and hysteresis.