Description
Detailed parameter table
Parameter name | Parameter value |
Product model | 3500/32M 149986-02 |
Manufacturer | Bently Nevada |
Product category | Machinery Protection System Advanced Multi-Parameter Monitor |
Monitoring channels | 8 configurable input channels (expandable via daisy-chain) |
Input types supported | Thermocouples, RTDs, 4-20 mA transducers, strain gauges, voltage signals |
Measurement range | -200°C to +1800°C (temperature); ±10 VDC; 4-20 mA; 0-350 Ω (strain) |
Accuracy | ±0.05% of full scale (electrical); ±0.1°C (temperature) |
Alarm capability | Configurable dual alarm levels per channel with logic programming |
Update rate | 100 Hz per channel |
Communication interface | 3500 system backplane, integrated with 3500/53 133388-01 |
Operating voltage | 5 VDC, ±15 VDC (from 3500/15 133292-01 power supply) |
Power consumption | 12 W typical, 15 W maximum |
Operating temperature | 0°C to +60°C (32°F to +140°F) |
Form factor | 3500 system rack mount (2 slot width) |
Dimensions | 266 mm (H) × 72 mm (W) × 229 mm (D) (10.5″ × 2.8″ × 9.0″) |
Compatibility | 3500/34 125696-01 pressure monitors, 3500/60 163179-01 displays |
Certification | UL, CE, RoHS compliant, IEC 61010-1, ATEX approved |
BENTLY 3500/32M 149986-02
Product introduction
The 3500/32M 149986-02 from Bently Nevada is an advanced multi-parameter monitoring module designed to expand the measurement capabilities of the 3500 Machinery Protection System, specializing in temperature, strain, and process variable monitoring. This 2-slot rack-mounted module serves as a versatile data acquisition hub, integrating seamlessly with specialized modules like the 3500/34 125696-01 dynamic pressure monitor to provide comprehensive machinery health data across industrial applications.
Unlike basic multi-parameter modules, 3500/32M 149986-02 offers enhanced signal processing and expandable channel capacity, making it ideal for complex monitoring scenarios where temperature, strain, and process variables must be correlated with pressure transients and vibration data. Its advanced alarm logic capabilities enable cross-channel condition monitoring, triggering alerts when combinations of parameters indicate emerging machinery issues that single-variable monitoring might miss.
In modern industrial monitoring ecosystems, 3500/32M 149986-02 plays a pivotal role in bridging mechanical and process monitoring, enabling operators to correlate temperature profiles, strain measurements, and pressure fluctuations from 3500/34 125696-01 with vibration data. This holistic approach supports predictive maintenance strategies by identifying subtle parameter interactions that precede catastrophic failures in power generation, oil and gas, and heavy manufacturing industries.
Core advantages and technical highlights
Multi-signal integration: 3500/32M 149986-02 excels at integrating diverse measurement types including high-temperature readings from thermocouples, precision RTD measurements, strain gauge data, and standard process signals. This versatility eliminates the need for multiple specialized modules, consolidating temperature, strain, and process monitoring into a single component that works alongside 3500/34 125696-01 pressure monitors to create a complete operational picture.
Advanced alarm logic: The module features programmable alarm logic that enables cross-channel condition monitoring, allowing operators to set alarms based on combinations of parameters (e.g., high bearing temperature + increased vibration + pressure fluctuation). This capability detects complex fault conditions that single-parameter alarms might miss, providing earlier warning of issues like bearing degradation under specific load and temperature conditions.
High-accuracy temperature measurement: With specialized signal conditioning for thermocouples and RTDs, 3500/32M 149986-02 delivers ±0.1°C temperature accuracy across a wide range (-200°C to +1800°C), critical for monitoring turbine hot sections, bearing temperatures, and process heating systems. This precision ensures detection of subtle temperature trends that indicate early-stage overheating or cooling system issues.
Seamless system correlation: Designed for deep integration with the 3500 architecture, the module maintains precise timing synchronization with pressure monitors like 3500/34 125696-01 and vibration modules. This synchronization, powered reliably by 3500/15 133292-01, enables accurate correlation between temperature spikes, strain variations, and pressure transients, supporting root cause analysis of complex machinery issues.
Typical application scenarios
In combined cycle power plants, 3500/32M 149986-02 modules monitor gas turbine hot section temperatures via thermocouples, bearing temperatures with RTDs, and fuel system pressures, working in tandem with 3500/34 125696-01 pressure monitors tracking combustion dynamics. The module’s cross-channel alarm logic triggers alerts when high turbine inlet temperature coincides with abnormal pressure fluctuations and vibration increases—indicating potential hot gas path degradation. Data is visualized on 3500/60 163179-01 displays, enabling operators to adjust operating parameters before component damage occurs.
Offshore oil platforms utilize 3500/32M 149986-02 to monitor subsea pump systems, with channels configured for motor winding temperatures, bearing temperatures, and hydraulic pressure. The module correlates these measurements with pressure transients from 3500/34 125696-01 to detect pump cavitation conditions, where temperature rises coincide with pressure fluctuations and increased vibration. This integrated monitoring helps prevent pump failures in remote subsea locations where maintenance is costly and time-consuming.
Steel mills employ 3500/32M 149986-02 to monitor rolling mill stands, tracking roll temperature profiles, hydraulic cylinder pressures, and frame strain gauges. The module’s strain measurements detect structural loading issues, while temperature data identifies uneven heating patterns that affect product quality. By correlating these with pressure data from 3500/34 125696-01 and vibration measurements, operators optimize roll changing schedules and prevent catastrophic frame failures in high-load manufacturing equipment.
BENTLY 3500/32M 149986-02
Related model recommendations
3500/34 125696-01: Dynamic pressure monitor whose data correlates with this module’s measurements.
3500/15 133292-01: Power supply module providing regulated power to this multi-parameter monitor.
3500/60 163179-01: Display module visualizing integrated multi-parameter data.
3500/53 133388-01: Communication module transmitting combined process and pressure data.
3500/42M 176449-02: Vibration/position monitor for complete machinery health correlation.
3500/22M 138607-01: Transient module triggered by multi-parameter alarm combinations.
3500/05-01-03-00-00-00: Serial communication module for legacy system integration.
177230-01-01-05: Extension cable connecting sensors to this monitoring module.
Installation, commissioning and maintenance instructions
Installation preparation: Before installing 3500/32M 149986-02, verify the 3500 rack has two adjacent slots available and that a properly sized 3500/15 133292-01 power supply is installed. For temperature measurements, use thermocouple extension wires of the same type as the sensor to maintain accuracy. Route strain gauge cables separately from power wiring to minimize interference. Configure channel types during setup to match connected sensors (thermocouple, RTD, 4-20 mA, etc.). Confirm the installation environment maintains temperatures within 0°C to +60°C with adequate ventilation.
Maintenance suggestions: Include 3500/32M 149986-02 in quarterly system inspections, verifying all channels display stable readings within expected ranges. Perform annual calibration verification using calibrated temperature sources, signal generators, and resistance standards. Inspect sensor connections for corrosion, especially thermocouple junctions and RTD terminals. Clean terminal blocks with approved contact cleaner as needed. Coordinate firmware updates with 3500/34 125696-01 and other system components to maintain compatibility. Test alarm logic annually by simulating various parameter combinations to ensure proper system response.
Service and guarantee commitment
Bently Nevada provides the 3500/32M 149986-02 with a 36-month warranty covering manufacturing defects and performance issues under normal operating conditions, including measurement accuracy, alarm functionality, and communication reliability when used with compatible 3500 series components like 3500/34 125696-01 and 3500/15 133292-01. Our technical support team offers expert guidance on sensor selection, channel configuration, and multi-parameter correlation methodologies specific to this advanced monitoring module.
We offer specialized training on multi-variable analysis, alarm logic programming, and system integration to maximize the diagnostic value of data from 3500/32M 149986-02. Beyond the warranty period, our service agreements include calibration services, technical support, and expedited replacement to minimize system downtime. Bently Nevada’s commitment to quality ensures reliable multi-parameter monitoring throughout the module’s operational lifecycle, backed by our global network of service professionals dedicated to protecting your critical machinery assets.
Full 12-month warranty on all components
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All units are fully tested
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