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3500/70M 176449-09

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Bently Nevada 3500/70M 176449-09 Recip Impulse Velocity Monitor delivers precise 4-channel vibration monitoring for reciprocating compressors with ±0.33% accuracy.
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Technical specifications for 3500/70M 176449-09

  • Manufacturer:
    Bently Nevada
  • Part Number:
    3500/70M 176449-09
  • Product Family:
    3500 System
  • Product Type:
    Recip Impulse Velocity Monitor
  • Signal:
    Accepts from 1 to 4 proximity probe signals
  • Input impedance:
    10 kΩ acceleration input >1 MΩ velocity input
  • Special inhibit:
    Contact closure 5 Vdc @ 390μA typical
  • Power consumption:
    7.7 watts, nominal
  • OK LED:
    Indicates when the 3500/70M Recip Impulse Velocity Monitor is operating properly
  • TX/RX LED:
    Indicates when the 3500/70M Recip Impulse Velocity Monitor is communicating with other modules in the 3500 rack
  • Bypass LED:
    Indicates when the 3500/70M Recip Impulse Velocity Monitor is in Bypass Mode
  • Accuracy:
    Within ± 0.33% of full-scale typical,± 1% maximum, Exclusive of filters
  • Band start:
    0 to 359°, 1° resolution
  • Band duration:
    1 to 360°, 1° resolution Rack Space Requirements 1 full-height front slot
  • Operating Temperature:
    -30°C to +65°C (-22°F to +149°F)
  • Storage Temperature:
    -40°C to +85°C (-40°F to +185°F)
  • Humidity:
    95% Non-condensing
  • Weight:
    0.82 kg
  • Estimated shipping dimensions:
    2.5x25.6x24cm
  • Tariff Code:
    8537101190
  • 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 Environmental Components Compatibility Application

Features:

  • Supports 1 to 4 proximity probe signal inputs with defined impedance characteristics for acceleration and velocity measurement.
  • Provides LED status indication including OK, TX/RX, and Bypass modes for system operation visibility.
  • Operates with configurable band start and band duration from 0–359° and 1–360° with 1° resolution.
The 3500/70M 176449-09 is used within reciprocating compressor monitoring systems to process vibration-related signals from seismic transducers. The 3500/70M 176449-09 conditions input signals and generates static values including impulse acceleration, acceleration 2, reciprocating velocity, and low frequency reciprocating velocity. It enables configuration through 3500 rack software for setting alert and danger thresholds based on selected parameters.

In industrial monitoring systems, the 3500/70M 176449-09 continuously evaluates machine vibration conditions to support parameter-based alarm generation. The module 3500/70M 176449-09 compares processed signal values against programmed setpoints to derive alert and danger outputs. Its configuration flexibility allows selection of multiple measurement functions depending on system requirements.

The 3500/70M 176449-09 is designed for integration in 3500 rack systems with a single full-height slot requirement and supports operating temperature from -30°C to +65°C. The 3500/70M 176449-09 also maintains storage capability from -40°C to +85°C with humidity tolerance up to 95% non-condensing. Through continuous signal conditioning, the 3500/70M 176449-09 provides structured vibration measurement data for monitoring purposes.

The 3500/70M 176449-09 Bently Nevada Recip Impulse Velocity Monitor may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 3500/70M 176449-09 Recip Impulse Velocity Monitor 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 3500/70M 176449-09 Recip Impulse Velocity Monitor Specs

General

  • Manufacturer GE / Bently Nevada
  • Model 3500/70M 176449-09
  • Condition New Original ready stock
  • Product Family 3500/70M,166226-01,135489-01
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.
  • Operating Temperature: 0°C to +65°C (32°F to 149°F).
  • Storage Temperature: -40°C to +85°C (-40°F to 185°F).
  • Relative Humidity: Up to 95%, non-condensing environment.
  • Protection Standards: Compliant with Class I, Div 2 and ATEX regional certification requirements.
  • Hardware Platform: Compatible with the entire Bently Nevada 3500 frame system series.
  • Sensor Support: Supports 330400, 330425 accelerometers and Velomitor CT.
  • Software Compatibility: Requires 3500 frame configuration software and data acquisition software.
  • Backend Connectivity: Adapts to dedicated I/O modules, supports TDI and external terminal blocks.
  • Reciprocating Compressors: Real-time monitoring of the housing and crosshead vibration of reciprocating compressors.
  • Mechanical Shock: Monitoring pulse signals caused by loose parts, wear, or liquid impact.
  • Critical Equipment Protection: Provides automatic alarm and shutdown protection for high-speed or heavy-duty reciprocating machinery.
  • Condition Prediction: Identifies early failures of valves, piston rings, and bearings through vibration trend analysis.
Description
The Bently Nevada 3500/70M 176449-09 Recip Impulse Velocity Monitor is designed for advanced reciprocating compressor monitoring, providing reliable measurement of crankcase and crosshead vibrations. This 4-channel module accepts signals from 1 to 4 proximity probes and processes seismic transducer inputs to derive accurate vibration data.

Each input features an impedance of 10 kΩ for acceleration signals and over 1 MΩ for velocity signals, ensuring precise signal conditioning. A special inhibit function allows contact closure at 5 VDC @ 390μA, adding flexibility for operational control. Power consumption is minimal at 7.7 watts nominal.

The monitor provides clear operational feedback with three LED indicators: OK for proper operation, TX/RX for communication with other modules in the 3500 rack, and Bypass to show when the unit is bypassed. Measurement accuracy is within ±0.33% of full scale typical and ±1% maximum, excluding filters, ensuring dependable performance in demanding industrial environments.

Programming is fully customizable via the 3500 Rack Configuration Software, allowing each channel to be configured for Impulse Acceleration, Acceleration 2, Recip Velocity, or Low-Frequency Recip Velocity. With a band start adjustable from 0 to 359° and band duration from 1 to 360°, both with 1° resolution, the module delivers flexible and precise vibration analysis. It occupies one full-height front slot in the rack and operates reliably in temperatures from -30°C to +65°C, with storage from -40°C to +85°C and up to 95% non-condensing humidity.
Alternative Names
35OO/7OM 176449-O9 3500/70M I76449-09 3500/70M 17644g-0g 3500-70M 176449-09 3500/70M 17644909
Technical notes
The Bently Nevada 3500/70M 176449-09 Recip Impulse Velocity Monitor, referred to as 3500/70M 176449-09, is a 4-channel module within the Bently Nevada 3500/70M 176449-09 system, designed to accept 1 to 4 proximity probe signals with input impedance of 10 kΩ acceleration input and >1 MΩ velocity input, and supports special inhibit via contact closure 5 Vdc @ 390 μA typical. The 3500/70M 176449-09 consumes 7.7 watts nominal power and operates with OK, TX/RX, and Bypass LED indicators for module status and communication monitoring.
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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.
Can you provide more pictures?
Yes, Apter Power can provide detailed product photos upon request.
What is the 3500/70M 176449-09 input impedance for acceleration and velocity signals?
Acceleration input: 10 kΩ; velocity input: >1 MΩ.
Can the 3500/70M 176449-09 module be programmed for different monitoring functions?
Yes, each channel can be set for Impulse Acceleration, Acceleration 2, Recip Velocity, or Low-Frequency Recip Velocity via 3500 Rack Configuration Software.
What are the 3500/70M 176449-09 operating and storage temperature ranges?
Operating: -30°C to +65°C (-22°F to +149°F); Storage: -40°C to +85°C (-40°F to +185°F).