Bently Nevada 3500/72M 176449-08
Bently Nevada 3500/72M 176449-08
Bently Nevada 3500/72M 176449-08
Bently Nevada 3500/72M 176449-08
Bently Nevada 3500/72M 176449-08
Bently Nevada 3500/72M 176449-08
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    Apter Power provides this Bently Nevada 3500/72M monitor as a reliable, high-performance solution for protecting your critical rotating assets with accurate diagnostic data.

3500/72M 176449-08

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The Bently Nevada 3500/72M 176449-08 Recip Rod Position Monitor provides precise dynamic and static rod position measurements for reciprocating compressors across four configurable channels.
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Technical specifications for 3500/72M 176449-08

  • Manufacturer:
    Bently Nevada
  • Part Number:
    3500/72M 176449-08
  • Product Family:
    3500 System
  • Product Type:
    Recip Rod Position Monitor
  • Stock:
    1
  • Signal:
    Accepts from 1 to 4 proximity probe signals
  • Input:
    Impedance 10 kΩ
  • Power Consumption:
    7.7 watts, nominal OK LED Indicates when the Recip Rod Position Monitor is operating properly
  • TX/RX LED:
    Indicates when the Recip Rod Position Monitor is communicating with other modules in the 3500 rack.
  • Bypass LED:
    Indicates when the Recip Rod Position Monitor is in Bypass Mode.
  • Output Impedance:
    510 Ω
  • Transducer Power Supply:
    -24 Vdc
  • Rack Space Requirements:
    1 full-height front slot
  • Operating Temperature:
    -30°C to +65°C (-22°F to +149°F)/0°C to +65°C (32°F to +149°F)
  • Storage Temperature:
    -40°C to +85°C (-40°F to +185°F)
  • Humidit:
    95% Non-condensing
  • Weight:
    0.82 kg
  • Estimated shipping dimensions:
    2.5x25.8x24cm
  • 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 Use Cases Environmental Ratings Certifications & Standards

Features:

  • Reciprocating Compressor Rod Position Monitoring with Proximity Transducer Interface
  • Four-Channel Signal Conditioning with Dynamic and Static Position Measurement
  • Paired Channel Programming Supporting Simultaneous Dual Functions
The Bently Nevada 3500/72M 176449-08 operates as the Recip Rod Position Monitor in a 3500 rack, providing continuous piston rod position monitoring for reciprocating compressors. It accepts input from proximity transducers, conditions the signal to provide dynamic and static position measurements, and compares the conditioned signals with user-programmable alarms. Each channel of the 3500/72M 176449-08, depending on how you configure it, typically conditions its input signal to generate various parameters called measured values. Seamless monitoring is standard with the 3500/72M 176449-08, and using the 3500 Rack Configuration Software will allow precise alert and danger setpoint configuration for each active measured value. The 3500/72M 176449-08 meets API 618 requirements for reciprocating compressors and has made improvements in rod position, rod drop, and hyper-compressor measurement capability within the 3500 rack.

The 3500/72M 176449-08 provides essential monitoring functions for reciprocating compressor protection, and is a critical component of the machinery protection path, directly affecting the proper, normal operation of the overall compressor monitoring system. One 3500/72M 176449-08 monitor module occupies a full-height slot in the rack and can be installed in any available monitor slot position.

For comprehensive reciprocating compressor protection applications, the 3500 System requires the 3500/72M 176449-08 monitor module configured with appropriate proximity transducers. In addition to standard single function operation, the paired channel configuration also performs simultaneous dual functions. The 3500/72M 176449-08 paired channel programming executes function assignment using the internal software configuration specified in the monitor options. Using this method, the channel pairing system continually processes transducer signals. If the system detects that monitored parameters exceed configured alarm setpoints, it will automatically trigger relay outputs and place an event in the System Event List.

The 3500/72M 176449-08 Bently Nevada Recip Rod Position Monitor may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 3500/72M 176449-08 Recip Rod Position 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 3500/72M 176449-08 Recip Rod Position Monitor Specs

General

  • Manufacturer Bently Nevada
  • Model 3500/72M 176449-08
  • Condition New Original ready stock
  • Product Family 140471-01,140482-01,3500/72M
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.
  • Reciprocating Compressor Protection: Primarily used to prevent damage by monitoring for abnormal conditions like excessive wear, misalignment, or binding.
  • Rod Drop & Rider Band Wear: Measures "rod drop" to determine the wear of rider bands, allowing for predictive maintenance before mechanical contact occurs.
  • Dynamic Rod Position Monitoring: Tracks peak-to-peak displacement for rod vibration measurements to ensure the machine operates within safe limits.
  • Hyper-Compressor Applications: Specifically configured to monitor high-pressure hyper-plunger positions in specialized industrial processes.
  • Crosshead Surveillance: Applied in reciprocating engines and pumps to monitor crosshead or plunger positions and detect early signs of mechanical failure.
  • Humidity:95% non-condensing.
  • Operating Temperature:-30°C to +65°C (-22°F to +150°F) with standard terminations. Some configurations support up to +85°C.
  • Storage Temperature:-40°C to +85°C (-40°F to +185°F).
  • Protection Class:IP67 (dust-tight and protected against temporary immersion) when appropriately housed.
  • Enclosure Options:NEMA 4 and 4X weatherproof housings are available for additional protection or in purged air environments.
  • API Standards: Meets API 618 requirements for reciprocating compressors and API 670 for machinery protection systems.
  • North America: CSA/NRTL/C (Class 1, Division 2, Groups A, B, C, D).
  • Europe/International: ATEX/IECEx Zone 2 (Ex nA nC ic IIC T4 Gc).
  • Safety Integrity Level: Optional SIL 2 rating for use in safety-instrumented systems.
  • Compliance: CE Mark for electromagnetic compatibility and low voltage directives.
Description
The Bently Nevada 3500/72M 176449-08 Recip Rod Position Monitor is a four-channel module designed to accept input from Bently Nevada approved proximity transducers. It conditions these signals to generate accurate dynamic and static rod position measurements, enabling operators to monitor and protect reciprocating compressor machinery effectively.

Each channel can be configured to produce a range of measured values based on the input signal. Using the 3500 Rack Configuration Software, users can set Alert setpoints for each active measured value and Danger setpoints for any two of the active measured values, providing customized monitoring and alarm strategies to suit specific machinery.

The monitor enhances machinery protection by continuously comparing measured parameters against configured alarm thresholds. If a measured value exceeds its setpoint, the module can display alarms and trigger relays, helping operators prevent equipment damage and maintain safe operation. It also provides critical information for operations and maintenance personnel to evaluate compressor performance.

Designed for reliability in industrial environments, the 3500/72M 176449-08 operates over a temperature range of -30°C to +65°C (-22°F to +149°F), stores safely between -40°C and +85°C (-40°F to +185°F), and tolerates 95% non-condensing humidity. The module consumes 7.7 watts nominal, provides -24 Vdc transducer power, and fits in one full-height front rack slot, delivering energy-efficient and compact monitoring capability. Front panel LEDs, including OK, TX/RX, and Bypass, provide clear operational status at a glance.
Alternative Names
3500/72M 176449-08 35OO/72M 176449-O8 3500/72M I76449-08 3500/72M 140471-01 3500/72M 140482-01 3500/72M 135489-01 3500/72M 146479-01
Technical notes
The Bently Nevada 3500/72M 176449-08 Recip Rod Position Monitor is a sophisticated four-channel module engineered to accept inputs from proximity transducers. By conditioning these signals, the 3500/72M 176449-08 provides both dynamic and static position measurements, which are continuously compared against user-programmable alarm setpoints. This specific 3500/72M 176449-08 unit is designed to program its channels in pairs, allowing it to perform up to two distinct functions simultaneously, such as dedicating channels 1 and 2 to one monitoring task while channels 3 and 4 handle another.
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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.
How does Bently Nevada 3500/72M 176449-08 indicate operating status?
Bently Nevada 3500/72M 176449-08 features dedicated OK, TX/RX, and Bypass LEDs to display module health, communication status, and bypass mode.
Does Bently Nevada 3500/72M 176449-08 require an external transducer power supply?
Bently Nevada 3500/72M 176449-08 provides a -24 VDC transducer power supply for compatible proximity probes.
Which installation space does Bently Nevada 3500/72M 176449-08 require?
Bently Nevada 3500/72M 176449-08 occupies one full-height front slot in a 3500 rack.
Where can Bently Nevada 3500/72M 176449-08 operate reliably?
Bently Nevada 3500/72M 176449-08 is designed for industrial environments with operating temperatures from -30°C to +65°C (depending on approvals) and up to 95% non-condensing humidity.