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Bently Nevada 3500 61RTD TC
1. Overview
Bently Nevada 3500/61 is a temperature monitoring and protection module specifically designed for industrial equipment. It is part of the 3500 series (including 3500/15, 3500/60/61, 3500/92, etc.), focusing on monitoring temperature changes of rotating machinery (such as bearings, gearboxes, motors, etc.).
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2. Core Parameters
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Parameter
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Specification
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|---|---|
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Model
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3500/61 (corresponding to 3500/60/61 series)
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|
Number of Channels
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6 RTD/TC input channels
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Input Signal
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Supports Resistance Temperature Detector (RTD) and Thermocouple (TC)
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|
Power Consumption
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9 Watts (3500/60 is 7 Watts)
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Input Impedance
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>10 MΩ per channel
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Output
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Front panel indicator lights, recorder output (4-20mA)
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Operating Temperature Range
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-30°C to +65°C (Storage temperature: -40°C to +85°C)
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Protection Level
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IP65 (dustproof and waterproof)
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Communication Interface
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3500 Rack system bus (including optional Modbus/RTU, Modbus/TCP, etc.)
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|
Dimensions
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241.3 mm x 24.4 mm x 241.8 mm
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3. Product Features
- Dual-function Input: Each channel can be connected to either RTD or TC sensors, greatly improving system flexibility.
- Redundant Design: Supports Triple Modular Redundant (TMR) configuration to ensure high reliability of the monitoring system and avoid single-point failures.
- High-precision Measurement: High input impedance (>10MΩ) for RTD/TC inputs reduces the load impact of the signal source and improves measurement accuracy.
- Easy Integration: It can be seamlessly integrated with other modules of the Bently Nevada 3500 series (such as vibration modules, power modules) to form a complete asset health monitoring system.
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4. Structure and Composition
- Host Unit: The core temperature measurement and processing component, installed in the rack.
- Input/Output (I/O) Module: Provides different levels of electrical isolation (non-isolated, isolated version), as well as internal or external termination options.
- Power Unit: Provides stable power input for the module.
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5. Application Fields
- Oil and Gas: Monitor the temperature of key equipment such as centrifugal compressors, pumping units, and pumps.
- Manufacturing Industry: Monitor temperature changes of production line equipment (such as gearboxes, bearings) to prevent equipment failures caused by overheating.
- Energy Industry: Used for temperature monitoring of wind turbines, steam turbines, etc.
- Water Treatment and Transportation: Monitor the operating status of water pumps, motors, etc.
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6. Installation and Maintenance
Installation
- Insert the 3500/61 module directly into the Bently Nevada 3500 series rack.
- Connect the corresponding type of RTD/TC sensor according to the selection (A, B codes).
- For redundant configuration (TMR), three modules must be installed as a group, and the system automatically performs voting or double voting fault tolerance.
Maintenance
- Regularly check the front panel indicator lights (fault, communication, bypass mode).
- Use Bently Nevada 3500 Rack Configuration Software to program parameters such as alarm thresholds and delay times.
- Select the appropriate protection level and isolated I/O module according to the industrial environment requirements.
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