Bently Nevada 3500/61 Temperature Monitoring Module

Overview

The Bently Nevada 3500/61 provides accurate temperature monitoring with six independent channels. It supports RTD (Resistance Temperature Detector) and Thermocouple (TC) inputs, which you can easily configure. The module processes the temperature data, compares it against user-programmable alarm setpoints, and offers reliable performance. Unlike the 3500/60, the 3500/61 module includes recorder outputs for all six channels, providing better data traceability and management.

Key Features

Temperature Input Types: Supports RTD and Thermocouple inputs for flexible temperature monitoring.
Output Channels: Six individual channels ensure comprehensive temperature data monitoring.
Alarm Setpoints: Customize alarm thresholds to suit specific requirements.
Isolation: The TC isolated version offers up to 250 Vdc channel-to-channel isolation to protect against interference.
Modular Configurations: You can choose between RTD/TC non-isolated or TC isolated versions, offering greater adaptability for your system.

Technical Specifications

Parameter	Specification
Model	3500/61
Manufacturer	Bently Nevada
Input Type	RTD or Thermocouple (TC)
Input Channels	1 to 6 Channels
Input Impedance	10 MΩ per lead
Power Consumption	3500/60: 7 watts, 3500/61: 9 watts
Thermocouple Types	Type E: -100°C to +1000°C, Type J: -18°C to +760°C, Type K: -18°C to +1370°C, Type T: -160°C to +400°C
RTD Types	100Ω 3-wire and 4-wire platinum, 120Ω 3-wire & 4-wire nickel, 10Ω copper
Temperature Range (RTD)	100Ω platinum: -200°C to +850°C; 120Ω nickel: -80°C to +260°C; 10Ω copper: -100°C to +260°C
Temperature Range (TC)	Type E: -100°C to +1000°C, Type J: -18°C to +760°C, Type K: -18°C to +1370°C, Type T: -160°C to +400°C
Isolation (TC version)	250 Vdc channel-to-channel isolation
Ambient Temperature Impact	Range reduction above +35°C for Type E thermocouples
Rack Configuration	Configurable via 3500 Rack Configuration Software
Modular Redundancy	Suitable for Triple Modular Redundant (TMR) configurations
Vibration Resistance	Ideal for high-vibration industrial settings

Installation Guidelines

Install the 3500/61 module into the 3500 Series Rack system for seamless integration. When configuring in a Triple Modular Redundant (TMR) setup, place the temperature monitors adjacent to each other. This configuration ensures reliable voting mechanisms, improving system accuracy and preventing single-point failures.

Applications

The Bently Nevada 3500/61 is designed for industrial temperature monitoring in demanding environments. It is widely used in machine control, process monitoring, and automation systems, where precise temperature data is critical for maintaining system stability.