Description
Detailed parameter table
| Parameter name | Parameter value |
| Product model | 3500/32 125712 – 01 |
| Manufacturer | BENTLY NEVADA |
| Product category | Vibration monitor module |
| Electrical performance | 24V DC power supply; 4 – channel input; 4 – 20mA output per channel; Power consumption: 8W max |
| Physical size | Width: 24.4mm, Height: 241.3mm, Depth: 228.6mm |
| Interface type | BNC connectors for input signals; Terminal blocks for power and output; Backplane connector for system communication |
| Communication protocol | Integrates with 3500 series system bus; Supports analog output for DCS/SCADA integration |
| Environmental requirements | Operating temperature: – 40°C to + 70°C; Humidity: 5% – 95%, non – condensing; Vibration resistance: 10g peak (10 – 2000Hz) |
| Installation method | Rack – mountable in 3500 series racks; Occupies 1 standard slot |
| Performance indicators | Measurement range: 0 – 50mm/s RMS; Accuracy: ±1% of reading; Frequency response: 10Hz – 1kHz; Sampling rate: 5kHz per channel |
BENTLY 3500/32 125712-01
Product introduction
The BENTLY NEVADA 3500/32 125712 – 01 is a high – performance vibration monitor module, a key component of the 3500 machinery protection system. It is specifically designed to continuously monitor vibration levels in rotating machinery, providing critical data for early fault detection and prevention.
This 4 – channel module excels at processing signals from accelerometers and velocity sensors, converting raw vibration data into standardized 4 – 20mA outputs. The BENTLY NEVADA 3500/32 125712 – 01 integrates seamlessly with other 3500 series components, forming a comprehensive monitoring solution. In industrial automation systems, it acts as a vital safeguard, enabling operators to identify issues like bearing wear, rotor imbalance, and misalignment before they lead to costly machinery failures.
Core advantages and technical highlights
Multi – channel monitoring efficiency: The 3500/32 125712 – 01 features 4 independent channels, allowing simultaneous monitoring of multiple machine points such as motor bearings, pump casings, or turbine housings. Each channel operates with a 5kHz sampling rate, ensuring no critical vibration events are missed. This capability is especially valuable in complex machinery trains where multiple components need synchronized monitoring.
Broad frequency response: With a frequency range of 10Hz – 1kHz, the 3500/32 125712 – 01 accurately captures both low – frequency vibrations (indicative of imbalance or misalignment) and high – frequency oscillations (signaling bearing defects). This versatility eliminates the need for multiple specialized monitors, simplifying system design and reducing costs.
User – configurable alarms: Operators can set custom alarm thresholds for each channel of the 3500/32 125712 – 01, including warning and danger levels. The module provides both relay and analog alarm outputs, enabling integration with shutdown systems or visual/audio indicators. This flexibility ensures the monitor adapts to specific machinery protection requirements, from critical turbines to auxiliary pumps.
Rugged industrial design: Built to withstand harsh environments, the 3500/32 125712 – 01 operates reliably in temperatures from – 40°C to + 70°C and resists 10g vibrations. Its robust construction ensures consistent performance in applications like offshore platforms, steel mills, and refineries, where environmental conditions are extreme.
Typical application scenarios
In oil and gas production facilities, the 3500/32 125712 – 01 monitors reciprocating compressors. By tracking vibration on crankshaft bearings and cylinder heads, it detects early signs of rod wear or valve issues. Its 4 – channel design allows simultaneous monitoring of multiple compressor stages, providing a comprehensive view of machine health and preventing unplanned shutdowns in critical pipeline operations.
Within power generation plants, the 3500/32 125712 – 01 is installed on boiler feed pumps. It continuously measures vibration levels on motor and pump bearings, identifying cavitation or impeller imbalance. By integrating with the plant’s DCS via 4 – 20mA outputs, it enables operators to correlate vibration data with process parameters, optimizing pump performance and extending service life.
In automotive manufacturing, the 3500/32 125712 – 01 protects robotic assembly line motors. Its high – frequency response detects bearing degradation in servo motors, allowing preventive maintenance during scheduled downtime. The module’s rugged design withstands the factory environment’s mechanical vibrations and temperature fluctuations, ensuring reliable operation in 24/7 production settings.
BENTLY 3500/32 125712-01
Related model recommendations
3500/33 125713 – 01: A 8 – channel vibration monitor, an upgraded version of the 3500/32 125712 – 01 for larger machinery with more monitoring points, such as industrial turbines with multiple bearings.
3500/15 125701 – 01: A power supply module that provides stable 24V DC to the 3500/32 125712 – 01 and other 3500 series modules, ensuring system reliability.
330730 – 080 – 00 – 00: An accelerometer perfectly paired with the 3500/32 125712 – 01, providing high – quality vibration signals for accurate measurement.
3500/92 136188 – 01: A communication gateway that enables the 3500/32 125712 – 01 to transmit data to Ethernet – based systems, facilitating remote monitoring.
3500/20 125702 – 01: A rack interface module that connects the 3500/32 125712 – 01 to the 3500 system backplane, enabling data sharing between modules.
149992 – 01: A shielded cable assembly used to connect sensors to the 3500/32 125712 – 01, ensuring signal integrity in noisy industrial environments.
3500/50 125705 – 01: A display module that visualizes vibration data from the 3500/32 125712 – 01, allowing operators to quickly assess machinery status.
Installation, commissioning and maintenance instructions
Installation preparation: Before installing the 3500/32 125712 – 01, ensure the 3500 rack is powered off and properly grounded. Verify the installation environment meets temperature and humidity specifications. Required tools include a Phillips screwdriver, torque wrench (set to 0.5 – 0.7 Nm), and anti – static wrist strap. Inspect the module for physical damage and clean BNC connectors with isopropyl alcohol. Align the module with rack guides and gently insert until the backplane connector engages, then secure with mounting screws.
Maintenance suggestions: Perform monthly visual inspections of the 3500/32 125712 – 01 to check for loose connections or dust accumulation. Clean the module surface with a dry cloth. Calibrate annually using BENTLY NEVADA’s calibration kit to verify accuracy. If erratic readings occur, check sensor connections and cable integrity—replace damaged 149992 – 01 cables with genuine parts. For fault codes, refer to the user manual for troubleshooting steps. Keep a maintenance log recording calibration results, alarms, and any repairs to track module performance over time.
Service and guarantee commitment
The 3500/32 125712 – 01 comes with a 12 – month warranty covering manufacturing defects. During this period, we offer free repair or replacement for faulty units. Our technical support team provides 24/7 assistance for installation, configuration, and troubleshooting via phone and email. We supply detailed documentation, including calibration procedures and integration guides. For critical applications, optional extended warranties (up to 3 years) are available, including on – site support. Backed by BENTLY NEVADA’s expertise in machinery protection, the 3500/32 125712 – 01 is guaranteed to deliver reliable performance, ensuring your industrial machinery operates safely and efficiently.
