Description
BENTLY 3500/44-01-00 Multi-Channel Vibration and Displacement Monitoring Module
1. Product DescriptionThe
BENTLY 3500/44-01-00 is a high-performance, modular monitoring solution designed for rotating machinery in critical industrial applications. As part of the
BENTLY 3500 Series, this four-channel module supports simultaneous monitoring of radial vibration, axial displacement, and acceleration using eddy current sensors, accelerometers, or velocity transducers. It provides real-time data analysis, configurable alarm thresholds, and seamless integration with BENTLY’s System 1 software for predictive maintenance. The
3500/44-01-00 ensures reliable operation in harsh environments, making it ideal for power generation, oil & gas, and manufacturing sectors.
2. Technical Parameters
Parameter |
Specification |
Input Signal |
±10 VDC (eddy current sensors), 4–20 mA (accelerometers) |
Power Supply |
85–264 VAC or 20–30 VDC (redundant options available) |
Channels |
4 configurable channels (e.g., vibration/displacement) |
Measurement Range |
– Displacement: 0–250 mils (0–6.35 mm) – Acceleration: 0–10 g pk |
Alarm Outputs |
2 relays per channel (30 VDC/5 A max) |
Communication |
Modbus RTU (RS-485) for PLC/DCS integration |
Operating Temperature |
-40°C to +70°C |
Compatibility |
BENTLY 3500 racks, System 1 software |

BENTLY 3500/44-01-00
3. Advantages and Features
- Multi-Parameter Monitoring: Simultaneously tracks vibration, displacement, and acceleration for comprehensive machinery health assessment.
- Flexible Configuration: Over 10,000 filter combinations (low-pass/high-pass) for adapting to dynamic operating conditions.
- Rapid Response Alarms: <10 ms detection time with configurable setpoints (Alert/Danger) to prevent catastrophic failures.
- Redundancy Support: Dual-channel redundancy for safety-critical applications (e.g., offshore platforms).
- User-Friendly Interface: Easy setup via BENTLY’s 3500 Rack Configuration Software with remote monitoring capabilities.
4. Application Fields and Case Studies
- Energy: Gas/steam turbine vibration analysis in power plants.
- Oil & Gas: Compressor axial displacement monitoring in refineries.
- Manufacturing: Motor bearing health assessment in automotive assembly lines.
Case Study: A European power plant reduced unplanned downtime by 35% using the 3500/44-01-00 to detect early-stage steam turbine blade cracks, avoiding $1.2M in repair costs.
5. Competitor Comparison
The 3500/44-01-00 outperforms alternatives with:
- Higher channel density (4 vs. 2–3 channels).
- Faster alarm response time (10 ms vs. 20–30 ms).
- Built-in support for BENTLY’s API 670-compliant sensors.

BENTLY 3500/44-01-00
6. Selection Recommendations
- Redundancy Needs: Opt for dual-channel configuration in safety-critical systems.
- Environment: Choose explosion-proof variants for hazardous areas.
- Budget: Balance upfront costs with long-term savings from predictive maintenance.
7. Precautions
- Sensor Calibration: Perform annual alignment checks using BENTLY’s 3500/05 Calibration Interface.
- Power Stability: Use filtered power supplies to prevent voltage fluctuations.
- Firmware Updates: Regularly update to access new features and security patches.
Shanxi Xinyeda International Trade Co., Ltd. is your trusted partner for
BENTLY 3500/44-01-00 and automation solutions. Visit
www.xydcontrol.com for sales and technical support.
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