Bently Nevada 139554-01 Position I/O Module

Description

The Bently Nevada 139554-01 is an AC LVDT Position Input/Output Module designed for the 3500/45 Position Monitor system. It interfaces with AC LVDT sensors to deliver precise position measurements for machinery protection and condition monitoring, supporting external termination blocks for flexible installation.

Specifications

• Model Number: 139554-01

• System Compatibility: Bently Nevada 3500/45 Position Monitor

• Sensor Type: AC LVDT (Linear Variable Differential Transformer)

• Frequency Response:

  • Direct filter: 0.104 Hz to 500 Hz

  • Gap filter: -3 dB at 0.05 Hz

  • Not 1X filter: 0.25 to 128× rotor speed

• Accuracy:

  • Direct/Gap: ±0.33% typical, ±1% max

  • 1X: ±0.33% typical, ±1% max

  • NX: ±0.33% typical, ±3% max

  • Composite: ±1% typical

• Air Gap Measurement: Instantaneous, Average, Min/Max, Pole Number

• Thrust Measurement:

  • Direct filter: -3 dB at 1.2 Hz

  • Gap filter: -3 dB at 0.41 Hz

• Isolation: 1500 V AC

• Operating Temperature: -30°C to +65°C

• Storage Temperature: -40°C to +85°C

• Humidity: 95% non-condensing

• Dimensions: 241.3 × 24.4 × 99.1 mm

• Weight: 0.20 kg

Features

• External Terminations: Supports external termination blocks for simplified wiring

• High Accuracy: Delivers precise position and thrust measurements

• Advanced Filtering: Includes Direct, Gap, Not 1X, and Composite filters

• Air Gap Monitoring: Detects and logs min/max pole gaps and pole numbers

• Hazardous Area Approvals: Options include ATEX, IECEx, CSA, and cNRTLus

• Flexible Configuration: Compatible with various LVDT and RPT sensor types

• Industrial Durability: Built for harsh environments in power and petrochemical sectors

• Firmware Support: Requires 3500/20 RIM Firmware rev. G or later