Bently Nevada 84145-01
Bently Nevada 84145-01
Bently Nevada 84145-01
Bently Nevada 84145-01
Bently Nevada 84145-01
Bently Nevada 84145-01
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84145-01

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The Bently Nevada 84145-01 is a seismic/velocity relay terminal board designed for 3300 Series monitoring systems, connecting transducer signals and providing high-current alarm relay outputs. It ensures reliable signal interfacing in industrial machinery monitoring applications.
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Technical specifications for 84145-01

  • Manufacturer:
    Bently Nevada
  • Part Number:
    84145-01
  • Product Family:
    3300 System
  • Contact type:
    Single-pole double-throw (SPDT)
  • Input channels:
    2 channels
  • Recorder output:
    Supports 4-20 mA, 1-5 VDC, or 0 to -10 VDC analog output
  • 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:
    3902100090
  • 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 Communication Safety Application

Features:

  • Dual Epoxy Construction Ensures Reliable Operation And Enhanced Mechanical Strength.
  • Supports Multiple Analog Outputs Including 4-20 mA, 1-5 VDC, And 0 To -10 VDC Signals.
  • Single-Pole Double-Throw (SPDT) Relays Provide High-Current Alarm Capabilities.
The 84145-01 module is a specialized terminal board designed to interface seismic and velocity transducers with the 3300 Series monitoring system. Its compact design allows easy mounting on the back of monitoring racks while ensuring secure and accurate signal transmission from input channels.

Equipped with two input channels, the board efficiently routes transducer signals to recorder outputs, supporting multiple analog signal types. This flexibility enables accurate monitoring, data collection, and alarm triggering for industrial machinery in real time.

Engineered for demanding environments, the 84145-01 operates reliably across temperatures from 0°C to +65°C (+32°F to +150°F) and can be stored between -40°C and +85°C (-40°F to +185°F), withstanding relative humidity up to 95% noncondensing. Its robust epoxy construction and versatile relay functionality make it a durable and essential component for vibration and velocity monitoring systems.

The 84145-01 Bently Nevada Seismic 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 84145-01 Seismic 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 84145-01 Seismic Dual Epoxy Relays Specs

General

  • Manufacturer GE / Bently Nevada
  • Model 84145-01
  • 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.
  • Recorder Output: Provides a 4-20 mA or 1-5 VDC analog signal proportional to vibration velocity for remote communication.
  • Hardwiring Relay Output: Transmits "Alert" and "Danger" statuses to the host computer or alarm panel via physical contacts.
  • Buffered Output: Provides a raw dynamic waveform signal interface for easy connection to an ADRE diagnostic instrument for spectrum analysis.
  • Internal Bus Integration: Enables high-speed analog signal interfacing with front-end monitoring modules (such as 3300/55) via the 3300 rack backplane.
  • High Contact Reliability: Epoxy-sealed encapsulation effectively prevents contact arcing, enhancing safety in flammable and explosive environments.
  • High-current protection interlock: Supports 5A high rated current, directly driving the shutdown solenoid valve, reducing intermediate links and improving system reliability.
  • Environmental failure protection: The epoxy layer provides excellent moisture and salt spray protection, preventing false alarms or failures to operate due to environmental corrosion.
  • OK status monitoring: The system monitors the sensor circuit in real time; in case of disconnection, it automatically puts the relay into a preset fail-safe state.
  • Casing vibration monitoring: Installed on rolling bearing housings where displacement probes cannot be installed, it monitors seismic vibrations of the unit's bearing housing.
  • Hydropower generator protection: Utilizing its moisture-proof properties, it is used to monitor low-frequency vibrations of hydro-generator units.
  • Cooling tower fan monitoring: Monitors the vibration levels of gearboxes and motors in humid, misty environments.
  • Reciprocating machinery protection: Used to monitor large-amplitude impact vibrations of reciprocating compressor bodies.
  • Hard-connection retrofit for legacy systems: As a maintenance component for the 3300 system, it reliably connects local vibration protection signals to the plant-wide ESD (Emergency Stop System).
Description
The 84145-01 Seismic Dual Epoxy Relay connects seismic and velocity transducers directly to the 3300 Series machine monitoring system. It is mounted on the back of the monitoring rack, ensuring that signals from the input channels are transmitted accurately and consistently to the monitoring system.

The module features two input channels and supports multiple recorder outputs, including 4-20 mA, 1-5 VDC, and 0 to -10 VDC analog signals. This flexibility allows it to interface with a variety of monitoring devices, enabling precise measurement and reliable alarm signaling whenever vibration or motion exceeds set limits.

Equipped with single-pole double-throw (SPDT) relays, the 84145-01 can handle high-current alarm outputs efficiently. Its dual epoxy construction provides mechanical strength and long-term durability, making it suitable for continuous operation in industrial environments.

It operates effectively in temperatures from 0°C to +65°C (+32°F to +150°F) and can be stored between -40°C and +85°C (-40°F to +185°F), withstanding relative humidity up to 95% noncondensing. This ensures stable performance even in harsh or demanding conditions.

The 84145-01 provides a reliable link between transducer signals and monitoring systems, supporting accurate vibration and motion detection while maintaining durability and consistent operation in industrial applications.
Alternative Names
84140-01 84141-01 84147-01 84152-01 82926-01
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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 many channels can the 84145-01 handle?
It has two input channels, allowing dual seismic or velocity transducer connections.
Can both channels be used simultaneously for different measurements?
Yes, each channel independently processes input signals for accurate monitoring and recording.
Why is the dual epoxy construction important?
Dual epoxy provides enhanced mechanical strength and electrical insulation, ensuring long-term reliability and durability under industrial operating conditions.
Does it affect installation?
The epoxy construction does not impede installation but increases resistance to environmental stress and vibration.

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