Bently Nevada 88984-02 3300 Series Internal Barrier Input Relay Module

Manufacturer: Bently Nevada
Product No.: 88984-02
Condition：in Stock
Product Type: Internal Barrier Input Relay Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 1000g
Shipping port: Shanghai/Yiwu/Shenzhen
Warranty: 12 months

Quantity

Product Description

Overview

The 88984-02 is a dual-channel internal barrier option module designed for the Bently Nevada 3300 Series monitoring system. It is engineered to provide intrinsic safety for transducer signals from hazardous areas, protecting both equipment and personnel. The epoxy-encapsulated design ensures high reliability in harsh industrial environments while maintaining precise signal integrity for critical vibration and machinery monitoring applications.

Key Features

Dual independent input channels with internal safety barriers
Epoxy-encapsulated components for enhanced durability and environmental protection
Hot-swappable backplane mounting compatible with 3300 Series monitor racks
Supports Proximitor sensors, ICP-powered sensors, and Keyphasor inputs
High-speed relay response under 10 ms for rapid alarm and trip functions
Modbus RTU communication compatible for SCADA and control integration

Technical Specifications

Feature	Specification
Part Number	88984-02
Series	3300 Monitoring System
Module Type	Dual Channel Internal Barrier / Input Relay
Input Channels	2 independent channels
Relay Outputs	2 SPDT (Normally Open)
Analog Output	4–20 mA
Response Time	< 10 milliseconds
Supported Sensors	Proximitor, ICP, Keyphasor inputs
Frequency Range	0.1 Hz – 200 Hz (wideband 5 Hz – 15 kHz)
Resolution	0.001 g peak
Accuracy	±0.01% full scale
Output Impedance	100 Ω voltage output
Power Consumption	~2 W nominal
Power Supply	24 V DC
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	Up to 95%, non-condensing
Dimensions	75 mm x 120 mm x 45 mm
Weight	1.3 lbs (590 g)
Mounting	Backplane/DIN rail compatible within 3300 rack
Material	Stainless steel housing with epoxy encapsulation

Applications

Intrinsic safety for transducer signals in explosive or hazardous zones
Dual-channel vibration and gap monitoring using 3300 Series monitors
Machinery protection with fast alarm and trip relay outputs
Integration into SCADA and control systems via Modbus RTU
Replacement or upgrade module for legacy 3300 monitoring systems

FAQ

Q: Can the 88984-02 support Keyphasor inputs?
A: Yes, the module supports Keyphasor inputs for advanced rotor analysis.

Q: Is it compatible with ICP-powered sensors?
A: Yes, it supports ICP-powered transducers in addition to standard Proximitor sensors.

Q: What is the relay response time?
A: Relay activation occurs in under 10 milliseconds for fast machinery protection.

Q: How should I install it in a 3300 series rack?
A: Mount the module to the backplane, ensure proper earthing, and connect signals according to 3300 Series guidelines.

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Bently Nevada Internal Barrier Input Relay Module

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