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        135137-01

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        The Bently Nevada 135137-01 is a built-in terminal position I/O module adapted for 3500/45 position monitors. It is designed for Proximitors, RPTs, and DC LVDTs signal inputs, and can achieve accurate acquisition and conditioning of 1-4 signals with a single full-height rear slot deployment.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 135137-01

        • Manufacturer:
          Bently Nevada
        • Part Number:
          135137-01
        • Product Family:
          3500 System
        • Signal:
          Accepts from 1 to 4 signal inputs
        • Rack Space Requirements:
          1 full-height rear slot
        • Power consumption:
          5.6 Watts typical, using Rotary Potentiometer I/O
        • Input Impedance:
          1 MΩ (DC LVDT inputs); 10 kΩ (Proximitor or RPT inputs); 137 kΩ (AC LVDT inputs); 200 kΩ (Rotary Potentiometer inputs).
        • Operating Temperature:
          When used with Internal/External Termination I/O Module: -30°C to +65°C (-22°F to +150°F)
        • Storage Temperature:
          -40°C to +85°C(-40°F to +185°F)
        • Humidity:
          95% Non-condensing
        • Weight:
          0.4 kg
        • Estimated shipping dimensions:
          2.5x11.2x24.2cm
        • Tariff Code:
          8537109090
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen, Fujian, China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Specifications Diagnostics Application Installation

        Features:

        • Exclusive Adaption For Professional Position
        • Detection SensorsIntegrated Termination Design For Simplified Field DeploymentWide
        • Environmental Adaptability For Industrial Site Application
        The Bently Nevada 135137-01 is an exclusive Position I/O Module engineered for the 3500/45 Position Monitor, featuring an internal termination design. As a professional position signal acquisition module compatible with Proximitors, RPTs and DC LVDTs, it enables direct signal connection between position sensors and the monitor without the need for additional termination accessories, greatly simplifying the installation and deployment process in industrial sites and delivering an integrated signal access solution for the position monitoring segment of the 3500 system.

        Serving as a core accessory component for the 3500/45 Position Monitor, this module accurately receives and conditions position signals from the corresponding sensors, and transmits the processed signals to the monitor for user-programmable alarm comparison. When used with the 3500 Rack Configuration Software, it supports channel-independent programming for a variety of position monitoring functions, perfectly meeting the monitoring requirements for core position parameters of rotating equipment such as axial (thrust) position and valve position, and acts as a critical signal connection component for position status monitoring of industrial equipment.

        With an industrial-grade environment-resistant design, the Bently Nevada 135137-01 is adaptable to various harsh industrial site working conditions and maintains stable signal transmission performance under different temperature and humidity environments. Meanwhile, it adopts a compact slot deployment design, occupying a reasonable space in the 3500 system rack. It balances the stability of signal acquisition with the space utilization of system deployment, making it a highly compatible position I/O module matched for the 3500/45 Position Monitor.

        The 135137-01 Bently Nevada Position I/O Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Bently Nevada 135137-01 Position I/O Module Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        Bently Nevada 135137-01 Position I/O Module Specs

        General

        • Manufacturer GE / Bently Nevada
        • Model 135137-01
        • Condition New Original ready stock
        • Product Family 140734-01,176449-02,128229-01
        Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        • Sensor Status Monitoring (OK Check): Real-time checks the bias voltage of connected sensors (such as preamplifiers, LVDTs) to ensure signal chain integrity. If a disconnection, short circuit, or sensor malfunction occurs, the module will mark it as "Not OK" to prevent false alarms.
        • Alarm Logic Control: Supports setting two threshold levels: "Alert" and "Danger." When position parameters exceed preset safety ranges, the 3500 system can automatically trigger protection actions (such as interlock tripping).
        • Internal Self-Test: Possesses continuous hardware self-diagnostic capabilities, monitoring the module's own operating status and feeding back diagnostic information to the 3500 framework and configuration software.
        • Axial Displacement (Thrust Position): Monitors the axial movement of the turbine or compressor shaft to prevent rotor-stator collision.
        • Differential Expansion Monitoring (Differential Expansion): Measures the relative displacement between the casing and rotor caused by differences in thermal expansion.
        • Valve Position: Monitors the opening of regulating valves and main steam valves via LVDT or potentiometer.
        • Case Expansion: Measures the overall displacement of large units after heating using a DC or AC LVDT.
        • Compatibility: This I/O module must be installed in the frame slot directly behind the 3500/45 position monitor mainboard.
        • Supported Sensor Types: Proximitors (eddy current sensors): for non-contact displacement measurement. LVDT (Linear Variable Differential Transformer): supports AC and DC models.
        • Installation Requirements: Occupies one full-height slot at the rear of the rack. Operating temperature range: -30°C to +65°C (-22°F to +150°F), humidity up to 95% non-condensing.
        • Upgrade Note: When upgrading the old 3300 system to the 3500 system, you need to confirm whether the existing LVDT or sensor cable requires a matching internal safety barrier version (such as a sister model of 135137-01). 135137-01 is a non-safety barrier model.
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        Description
        The Bently Nevada 135137-01, a dedicated position I/O module for the 3500/45 Position Monitor, is primarily designed for signal input to Proximitors, RPTs, and DC LVDTs. Compared to the 138708-01 shaft-mounted I/O module in the same series, it achieves precise impedance matching for position monitoring signals. Its 1 MΩ DC LVDT input impedance and 10 kΩ Proximitor or RPT input impedance are unmatched by the 138708-01's single impedance configuration, which only adapts to shaft-mounted signals. This ensures lossless transmission of position signals at the hardware level.

        This module occupies one full-height rear slot and has a typical power consumption of only 5.6 Watts (in rotary rheostat I/O mode). Compared to the 125760-01 I/O module without a safety barrier vibration, it has advantages in slot utilization and power consumption control. Although the 125760-01 is also a 4-channel I/O module, it requires additional terminal accessories and has approximately 20% higher power consumption. The 135137-01's built-in terminal design eliminates the need for external accessories, improving deployment efficiency by over 50%.

        The 135137-01 supports flexible input of 1-4 signals and can be used with the 3500/45 Position Monitor to program and configure 8 types of position-related functions, including axial displacement, differential expansion, and valve position. This is in stark contrast to the 176449-02 preamplifier/seismic monitoring I/O module, which is only suitable for vibration signal acquisition and lacks position function programming capabilities. The 135137-01, however, can be independently programmed through channels of the 3500 Rack Configuration Software, meeting diverse position monitoring needs in industrial settings and adapting to the core position parameter monitoring of rotating equipment such as steam turbines and compressors.

        In terms of environmental adaptability, the 135137-01 has an operating temperature range of -30°C to +65°C, a storage temperature range of -40°C to +85°C, and a humidity tolerance of 95% without condensation. Compared to the 135489-01, which has a built-in safety barrier vibration I/O module, its lower lower operating temperature is more suitable for harsh industrial scenarios such as high altitude and extreme cold. The 135489-01 has an operating temperature range of only -20°C to +60°C, which is prone to signal drift in low-temperature environments. However, the 135137-01 ensures the stability of signal acquisition thanks to its wide temperature range design. Meanwhile, the Bently Nevada 135137-01's dedicated signal compatibility reduces signal distortion by 80% compared to the general-purpose 135473-01 I/O module in proximitors, RPTs, and DC LVDTs signal processing, making it the optimal choice for 3500/45 Position Monitors.
        Alternative Names
        135137-02 135137-03 135137-04 176449-04 140072-04
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        What signal inputs is Bently Nevada 135137-01 compatible with?
        The Bently Nevada 135137-01 is designed specifically for proximitors, Rotary Position Transducers (RPTs), and DC Linear Variable Differential Transformers (DC LVDTs). It is a dedicated I/O module for these types of position monitoring sensors and does not support AC LVDTs or rotary rheostats signal inputs.
        How many signal inputs can the Bently Nevada 135137-01 accept at most?
        This module can flexibly accept 1 to 4 signal inputs, and a single module can meet the synchronous acquisition requirements of multi-channel position signals without the need for additional expansion modules.
        What rack space does the Bently Nevada 135137-01 require for installation?
        The Bently Nevada 135137-01 only occupies one full-height rear rack slot, significantly improving rack space utilization in the 3500 system rack compared to some similar I/O modules that require dual-slot deployment.
        How to program the functional functions of the Bently Nevada 135137-01?
        The 138708-01 is an shaft I/O module and does not have a dedicated impedance configuration for DC LVDT signals. The 135137-01, however, is designed with a precise 1 MΩ input impedance for DC LVDT signals, avoiding signal loss and distortion—something the 138708-01 cannot achieve.

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