BENTLY 1701/25 Vibration Monitoring Module
1. Product Description
The BENTLY 1701/25 is a versatile mid-range vibration monitoring module designed for BENTLY Nevada’s machinery protection systems. It’s mainly used to collect and process vibration data from medium to large rotating equipment (such as industrial compressors, mid-sized turbines, and heavy-duty pumps) in settings like refineries, power plant auxiliary systems, and large manufacturing workshops.
Working with BENTLY standard proximity probes, it detects abnormal vibration (e.g., from bearing degradation or rotor imbalance) and provides timely alerts—helping prevent costly equipment breakdowns. It has a compact yet robust design, easy to install in standard control cabinets, and can handle moderate industrial conditions (like moderate vibration or temperature fluctuations), making it a practical choice for applications that need more capability than entry-level modules but don’t require high-end features.
2. Technical Specifications
- Power Supply: 24 V DC (18–32 V DC, wide input for industrial stability)
- Monitoring Function: Dual-channel vibration measurement (monitors two key vibration points of equipment at once)
- Input Signal: Accepts signals from BENTLY 3300 series standard proximity probes
- Measurement Range: 0–508 μm peak-to-peak (covers vibration levels of medium to large rotating machinery)
- Operating Temperature: -10°C to +65°C (works in most indoor and semi-outdoor industrial environments)
- Dimensions: Compact size (approx. 125 mm × 80 mm × 40 mm) for space-saving cabinet mounting
- Protection Features: Short-circuit protection for input channels and over-temperature protection (prevents module damage)
- Output: Dual 4–20 mA analog outputs (sends independent vibration data of two channels to controllers or HMIs)
3. System Introduction
The 1701/25 is a key mid-range component of BENTLY Nevada’s “Machinery Protection and Condition Monitoring System”—a scalable lineup that serves from basic to advanced industrial needs. For mid-sized operations, the system includes the 1701/25 module, standard proximity sensors, a multi-function controller, and user-friendly monitoring software.
In the system, the 1701/25 acts as a “dual-point data collector”: it captures raw vibration signals from two sensors, processes them into usable data, and sends it to the controller. If vibration levels exceed preset limits, the controller triggers visual/audible alarms or sends remote alerts to maintenance teams. This system balances performance and cost, ideal for medium-scale facilities that need reliable monitoring for critical but non-ultra-high-end equipment.
4. Recommended Related Models in the Same Series
- BENTLY 1701/15: Entry-level single-channel model (narrower range: 0–254 μm) for small to medium equipment (e.g., light-duty pumps) to save cost.
- BENTLY 1701/30: High-temperature dual-channel variant (operating range -20°C to +75°C) for hot environments (e.g., refinery heaters or boiler auxiliary turbines).
- BENTLY 1701/25-01: Enhanced version with Modbus RTU digital communication (supports remote data access and configuration).
- BENTLY 1701/45: High-precision dual-channel model (accuracy ±0.3 μm) for sensitive medium-sized equipment (e.g., precision industrial compressors).
- BENTLY 1702/25: Dual-channel module with added temperature monitoring (for comprehensive equipment health checks, e.g., heavy-duty motors).
- BENTLY 1701/25-IS: Intrinsically safe variant (ATEX-certified) for hazardous areas (e.g., chemical plant pumps or oil rig auxiliary compressors).
- BENTLY 1701/50: Quad-channel model (monitors four vibration points) for large complex equipment (e.g., multi-stage industrial turbines).
- BENTLY 1701/25-R: Redundant dual-channel module (backup for critical medium-sized equipment, e.g., power plant auxiliary turbines).
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