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84140-01

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The Bently Nevada 84140-01 Dual Epoxy Relays provide reliable dual-relay outputs for the 3300 Series monitoring system, ensuring secure signal interfacing and alarm functionality in industrial applications.
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Technical specifications for 84140-01

  • Manufacturer:
    Bently Nevada
  • Part Number:
    84140-01
  • Product Family:
    3300 System
  • Series:
    Bently Nevada 3300 System
  • Number of Relays:
    2
  • Sealing Type:
    Epoxy-sealed
  • Operating voltage:
    24 VDC (±20%)
  • Operating Temperature:
    0°C to +65°C (+32°F to +150°F).
  • Storage Temperature:
    -40°C to +85°C (-40°F to +185°F).
  • Relative Humidity:
    To 95%, noncondensing.
  • Weight:
    0.35 kg
  • Estimated shipping dimensions:
    5.1x10.2x22.9cm
  • 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 Connections Compliance Application Scenarios

Features:

  • Provides Dual SPDT Relay Outputs For Alarm And Control Signal Integration.
  • Epoxy-Sealed Construction Ensures Resistance To Moisture And Industrial Contaminants.
  • Operates Reliably Across Wide Temperature And Humidity Ranges.
The 84140-01 module is designed to interface seamlessly with the Bently Nevada 3300 Series system, enabling stable signal routing for monitoring and control applications. Its epoxy-encapsulated design safeguards internal relays against harsh industrial conditions, ensuring consistent operation over time.

This relay module functions with a 24 VDC power supply and accommodates standard environmental requirements, supporting reliable performance in high humidity and variable temperature conditions. Its compact form factor simplifies installation in monitoring racks while maintaining durability.

The dual-relay setup allows simultaneous handling of multiple signals, making the 84140-01 suitable for complex industrial systems that require dependable alarm or control outputs without additional hardware.

The 84140-01 Bently Nevada Dual Epoxy Relays may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 84140-01 Dual Epoxy Relays 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 84140-01 Dual Epoxy Relays Specs

General

  • Manufacturer GE / Bently Nevada
  • Model 84140-01
  • Condition New Original ready stock
  • Product Family 81546-01,81545-01,81544-01
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 Input (XDUCR): Connects to a seismic vibration sensor or displacement probe to receive raw dynamic signals.
  • Relay Contact Output: Provides two independent sets of programmable relay contacts (Alert and Danger) for triggering external alarms or performing safety shutdowns.
  • Recorder Output: Provides a 4-20 mA or voltage proportional signal for connection to a DCS, PLC, or chart recorder for trend monitoring.
  • Buffered Output: Provides unprocessed raw signals via the front panel or module interface for field diagnostics with portable vibration analyzers.
  • API 670 Standard: Designed to comply with the American Petroleum Institute (API) 670 standard, a core industry specification for rotating machinery protection systems worldwide.
  • CE Certification: CE marking certified in Europe, ensuring compliance with electromagnetic compatibility (EMC) and safety requirements
  • Environmental Rating: Epoxy-sealed relays are suitable for control room or instrument panel installation in non-explosive environments.
  • Safety Isolation: When used with safety barriers, it supports the connection of sensors in hazardous areas (see installation manual 88837-01 for details).
  • Critical Rotating Machinery Protection: Widely used for vibration monitoring of steam turbines, gas turbines, centrifugal compressors, and large industrial pumps.
  • Industrial Safety Interlock: When abnormal vibration or displacement is detected, it enables emergency shutdown (ESD) of machinery via relay output.
  • Equipment Condition Diagnosis: Utilizes recorder output and buffered signals for long-term trend analysis to help identify bearing failures, rotor imbalance, or misalignment.
  • Legacy System Maintenance and Retrofitting: As the 3300 series is nearing the end of its lifecycle, this module is often used for spare parts replacement in existing facilities or expansion of small monitoring systems.
Description
The 84140-01 Dual Epoxy Relays are designed for use with the Bently Nevada 3300 Series machine monitoring system, serving as a robust interface for signal relay outputs. The module incorporates two sealed SPDT relays, allowing dependable operation even under continuous industrial use.

Operating at 24 VDC ±20%, the relays deliver stable performance and integrate seamlessly with monitoring racks to manage alarm signals or other control outputs. Its epoxy-sealed construction protects the internal components from dust, moisture, and other environmental stresses, enhancing long-term reliability.

The module supports operation across a wide temperature range from 0°C to +65°C (+32°F to +150°F) and can be safely stored between -40°C and +85°C (-40°F to +185°F). Relative humidity tolerance reaches up to 95% noncondensing, making it suitable for demanding plant environments where industrial machinery is exposed to variable conditions.

By providing a reliable relay interface, the 84140-01 simplifies the integration of transducer or monitoring signals into the 3300 Series system. Its dual-relay design allows for multiple simultaneous outputs, improving flexibility in alarm management and system monitoring applications.
Alternative Names
84141-01 84145-01 84147-01 84152-01 82926-01 82927-01
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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 the 84140-01 maintain performance in high-humidity environments?
The epoxy-sealed construction and noncondensing tolerance up to 95% humidity prevent moisture-related failures.
How should the module be stored when not in use?
Store between -40°C and +85°C (-40°F to +185°F) in a dry, noncondensing environment.Correct storage prevents component degradation and maintains long-term reliability.
What installation considerations should be kept in mind?
Mount the module in a secure position within the 3300 Series rack, ensuring connections to alarm or control circuits are correct.
How can the dual-relay setup improve system monitoring flexibility?
It allows two independent outputs, supporting multiple alarm or control actions simultaneously.

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