135137-01 Position I/O Module

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	135137-01
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 135137-01 Position I/O Module is a four-channel monitor designed for industrial automation and machinery control. The 135137-01 accepts 1–4 inputs from proximity transducers, DC or AC LVDTs, rotary potentiometers, or RPTs, with input impedance ranging from 1 MΩ for DC LVDTs to 200 kΩ for rotary potentiometers. Thrust sensitivity is 3.94 or 7.87 mV/μm, while differential expansion sensitivity ranges from 0.394 to 7.874 V/mm depending on full-scale selection.

The 135137-01 operates in a full-height rear slot at −30 °C to +65 °C and stores from −40 °C to +85 °C, supporting 95% non-condensing humidity. Power consumption is 7.7 W typical. Alarm setpoints for thrust, differential expansion, and valve position are programmable via 3500 Rack Configuration Software, with accuracy within 0.13% of the desired value. Frequency responses for direct and gap filters are −3 dB at 1.2 Hz and 0.41 Hz, respectively.

In automation systems, the 135137-01 provides real-time monitoring of axial position, valve position, and differential expansion, delivering actionable data for protection and control of turbines, compressors, and process machinery.

Applications

Monitor axial (thrust) position in rotating machinery

The 135137-01 accepts 1–4 proximity transducer or DC LVDT inputs, with a thrust sensitivity of 3.94 or 7.87 mV/μm. Engineers use 135137-01 to track axial movement in turbines and compressors, with direct filter frequency response −3 dB at 1.2 Hz for precise measurement.

Measure differential expansion across shafts or casings

The 135137-01 measures differential expansion with sensitivity from 0.394 to 7.874 V/mm depending on full-scale range. Gap filter frequency response at −3 dB 0.41 Hz allows operators to monitor slow expansion trends and prevent mechanical interference.

Track valve position in automated control systems

Using AC LVDT or rotary potentiometer inputs, the 135137-01 monitors valve travel with ±0.33% full-scale accuracy. The module outputs data to the automation system for valve control, alarm generation, and operational logging.

Support ramp and complementary differential expansion monitoring

The 135137-01 can configure standard or non-standard single and dual ramp differential expansion functions, allowing real-time tracking of case or shaft expansion for machinery protection and process optimization.

Specifications

Competitive Advantage

Wide input signal support for multiple transducers

The 135137-01 accepts proximity transducers, DC and AC LVDTs, RPTs, and rotary potentiometers. Input impedance ranges from 1 MΩ to 200 kΩ, enabling integration with varied industrial position sensors.

Accurate alarm setpoints and measurement

The 135137-01 provides alarm setpoint accuracy within 0.13% of full scale, and measurement accuracy for thrust, differential expansion, and valve position within ±0.33% typical, ±1% maximum. This ensures reliable triggering of automation safety actions.

Full-height slot integration with low power consumption

The 135137-01 installs in a full-height rear slot and draws only 7.7 W typical, allowing multiple modules in a 3500 rack without exceeding power or space limitations.

Programmable via 3500 Rack Configuration Software

Engineers can set full-scale ranges and configure measured variables such as axial position, differential expansion, and valve position without field calibration. The 135137-01 reduces installation and configuration time in automation systems.

Frequency response tailored to mechanical monitoring

Direct and gap filter frequency responses of −3 dB at 1.2 Hz and 0.41 Hz respectively allow 135137-01 to capture both fast axial movements and slow differential expansion, providing actionable data for real-time machinery control.