Description
⚙️ Product Overview
The Bently Nevada 3500/61 163179-02 is a temperature monitoring module designed for the Bently Nevada 3500 Machinery Protection System. It provides six independent temperature monitoring channels and accepts signals from Resistance Temperature Detectors (RTDs) and thermocouples (TCs).
The module processes incoming temperature signals and compares measured values with user-programmable alarm setpoints. This allows the machinery protection system to identify abnormal temperature conditions before they develop into more serious equipment problems.
One important feature of the 3500/61 version is its recorder output capability. Unlike the standard 3500/60 temperature monitor, the 3500/61 provides recorder outputs for all six temperature monitoring channels. This makes it suitable for applications requiring temperature monitoring together with external recording or data acquisition functions.

🔧 Key Features
• Six independent temperature monitoring channels
• Supports RTD and thermocouple temperature inputs
• User-programmable alarm and protection settings
• Recorder outputs for all six channels
• Compatible with the Bently Nevada 3500 Machinery Protection System
• Available configurations for isolated and non-isolated temperature inputs
• Supports integration into redundant machinery protection architectures
• Designed for continuous industrial machinery monitoring
📋 Product Datasheet
🔹 Brand: Bently Nevada
🔹 Model: 3500/61
🔹 Part Number: 163179-02
🔹 Series: 3500 Machinery Protection System
🔹 Product Name: Temperature Monitor Module
🔹 Monitoring Channels: 6 Channels
🔹 Input Types: RTD and Thermocouple Inputs
🔹 RTD Compatibility: Compatible with supported resistance temperature detector configurations
🔹 Thermocouple Compatibility: Supports common industrial thermocouple types including E, J, K, and T depending on configuration
🔹 Recorder Outputs: Yes, one recorder output capability for each monitoring channel
🔹 Input Impedance: Approximately 10 MΩ for each lead input
🔹 Isolation Option: TC isolated configurations can provide up to 250 VDC channel-to-channel isolation
🔹 Configuration Software: 3500 Rack Configuration Software
🔹 Nominal Power Consumption: Approximately 9 W
🔹 Operating Temperature: Approximately -30°C to +65°C, depending on the installed configuration and application conditions
🔹 Storage Temperature: Approximately -40°C to +85°C
🔹 Mounting Method: Installed in a Bently Nevada 3500 System Rack
🔹 Dimensions: Approximately 241.3 × 24.4 × 241.8 mm
🔹 Weight: Approximately 0.9 kg
🔹 Country of Origin: United States, subject to manufacturing batch verification
🔹 Product Condition: New Surplus
⚠️ Important Note: The 163179-02 part number should be verified together with the complete module and I/O configuration. Temperature input type, isolation requirements, wiring arrangement, and recorder output requirements should be confirmed before installation or replacement.
🛠️ Typical Applications
The Bently Nevada 3500/61 163179-02 is commonly used in machinery protection systems where temperature is an important operating and protection parameter.
Typical applications include:
• Steam turbines
• Gas turbines
• Compressors
• Large electric motors
• Generators
• Pumps
• Industrial rotating machinery
• Power generation equipment
• Petrochemical machinery
• Critical process equipment
The module can monitor temperatures from bearings, windings, lubrication systems, casings, process components, and other temperature-sensitive machine locations, depending on the installed sensor configuration.
💡 RTD and Thermocouple Monitoring
Different machinery applications may require different temperature sensor technologies.
RTD sensors are commonly selected where stable and accurate temperature measurement is required over a defined industrial operating range. Thermocouples are often selected for applications involving wider temperature ranges and high-temperature measurement points.
The 3500/61 platform allows the system configuration to be matched with the sensor type required by the monitored machinery. The final configuration depends on the installed I/O hardware and the engineering settings used for the protection system.
🔍 Common Questions and Answers
❓ Q1: What is the main function of the 3500/61 163179-02?
A: The module monitors temperature signals from RTDs or thermocouples and compares the measured values with configured alarm setpoints. It is used as part of the Bently Nevada 3500 machinery protection system.
❓ Q2: How many temperature channels does the 3500/61 provide?
A: The 3500/61 provides six temperature monitoring channels.
❓ Q3: What is the difference between the 3500/60 and 3500/61?
A: Both modules provide similar temperature monitoring functions, but the 3500/61 includes recorder output capability for each of its six channels.
❓ Q4: Can the module accept both RTD and thermocouple sensors?
A: Yes. The 3500/61 platform supports RTD and thermocouple temperature measurement depending on the installed I/O configuration.
❓ Q5: Can different sensor types be used in one system?
A: This depends on the I/O module configuration. Certain RTD/TC configurations can support a combination of supported RTD and thermocouple inputs.
❓ Q6: Does the 3500/61 support isolated inputs?
A: Yes. TC isolated configurations are available and can provide channel-to-channel electrical isolation for applications requiring improved protection against external electrical interference.
❓ Q7: What should be checked before replacing a 3500/61 module?
A: Check the complete part number, I/O configuration, sensor type, isolation requirement, rack position, existing configuration settings, recorder output requirements, and system compatibility.
❓ Q8: Can the module be used in a redundant protection system?
A: Yes. Temperature monitors can be used in Triple Modular Redundant configurations when installed and configured according to the applicable 3500 system requirements.
🔧 Recommended Bently Nevada Models
- Bently Nevada 3500/60 163179-01 – Temperature Monitor Module
- Bently Nevada 3500/65 172103-01 – 16-Channel Temperature Monitor
- Bently Nevada 3500/40M 176449-01 – Proximitor Monitor Module
- Bently Nevada 3500/42M 176449-02 – Proximitor/Seismic Monitor Module
- Bently Nevada 3500/45 176449-04 – Position Monitor Module
- Bently Nevada 3500/50 133388-02 – Tachometer Module
- Bently Nevada 3500/25 149369-01 – Keyphasor Module
- Bently Nevada 3500/32 125720-01 – 4-Channel Relay Module
- Bently Nevada 3500/92 136180-01 – Communication Gateway Module
- Bently Nevada 3500/93 135785-01 – System Display Module
📦 Product Selection Reminder
For a replacement project, do not select a module only according to the 3500/61 designation. The complete part number, associated I/O module, sensor wiring, isolation type, system configuration, and recorder output requirements should all be checked.
For the Bently Nevada 3500/61 163179-02, confirming the original nameplate and existing 3500 Rack Configuration Software settings before installation can help reduce replacement errors and avoid unnecessary machinery protection downtime.
