Bently Nevada 3500/70-01-01 Recip Impulse Velocity Monitor

• Recorder Output: 4 mA to 20 mA proportional to the full – scale of the monitor; maximum voltage compliance of 12 Vdc
• Output Accuracy: Within ±0.05 mA, with a deviation of ±0.14 mA across the full temperature range
• Output Resolution: Maximum 0.3662 µA
• Output Update Rate: Less than 100 milliseconds
• Load Resistance: Maximum 600 Ω
• Protection Performance: Each connector is equipped with short – circuit protection

Function Features

• Multi – mode Vibration Measurement: Each channel can be programmed via 3500 rack configuration software to perform four functions including impulse acceleration, acceleration 2, reciprocating velocity, and low – frequency reciprocating velocity. Channels are programmed in pairs, and up to two different or identical functions can be run simultaneously across the four channels to meet diverse vibration monitoring needs of reciprocating machinery.
• Customizable Alarm Mechanisms: Users can set alert setpoints for each active static measurement value and danger setpoints for any two active static values. When the monitored vibration parameters exceed the set thresholds, the module triggers alarms promptly to prevent equipment damage due to excessive vibration.
• Reliable Signal Processing and Output: It is equipped with advanced signal conditioning circuits that can accurately process signals from seismic transducers and proximity probes. The 4 mA – 20 mA recorder output can stably transmit measurement data to external recording and control equipment for subsequent data analysis and system control.
• Seamless System Integration: It is fully compatible with the 3500 series rack system. It can work with other modules in the series to form a comprehensive machinery protection system, covering multiple monitoring dimensions and realizing centralized management and unified scheduling of monitoring data.
• Robust Structural Protection: Each connector has short – circuit protection, which can avoid module damage caused by accidental short – circuits during operation. Its solid structural design and wide operating temperature range ensure stable operation even in harsh industrial environments with large temperature fluctuations and complex electromagnetic interference.

Application Scenarios

• Oil and Gas Industry: It is widely used in reciprocating compressors on offshore drilling platforms and onshore oil and gas gathering stations. It monitors the vibration of crankcases and crossheads of compressors used in oil and gas extraction and transportation processes, avoiding equipment failures that may lead to oil and gas leakage and ensuring the safety and continuity of extraction and transportation operations.
• Chemical Industry: It is deployed on reciprocating pumps and compressors in chemical plants. These devices are crucial for material transportation and reaction processes. The module monitors their vibration parameters in real time to prevent production interruptions or even dangerous accidents such as chemical leaks caused by equipment damage due to excessive vibration.
• Power Generation Industry: It is applied to reciprocating auxiliary equipment in thermal power plants and gas – fired power plants, such as air compressors and feed pumps. By monitoring the vibration status of these auxiliary equipment, it ensures the stable operation of the entire power generation system and avoids power supply interruptions caused by the failure of auxiliary equipment.
• General Manufacturing Industry: It is used for vibration monitoring of reciprocating machinery in metallurgical and pulp – and – paper factories, including reciprocating material conveyors and process pumps. It helps maintenance personnel discover potential equipment faults in advance, arrange maintenance plans reasonably, and reduce production downtime caused by unexpected equipment failures.
• Petrochemical Refineries: It is installed on reciprocating compressors and other key equipment in refineries. In the high – temperature and high – pressure operating environment of refineries, the module accurately monitors vibration data. It promptly alarms when abnormal vibration occurs, preventing equipment damage from expanding and ensuring the safe progress of the oil refining process.