The Bently Nevada 3701/55 ADAPT Condition Monitor (ADAPT ESD) is a safety PLC with a graphical logic programming interface and integrated overspeed detection. ADAPT ESD is designed for emergency shutdown of rotating machinery such as steam, gas, and hydro turbines, expanders, and other process equipment.
ADAPT ESD is a compact, standalone, triple-redundant, safety shutdown device that is designed to meet a broad range of user scenarios and applications. The design offers an electrical and mechanical package with attention to reliability and availability as well as extensive self-diagnostics and compliance to industry standards. It is designed to meet a broad range of use cases and environments. The design incorporates significant measures to provide a robust electrical and mechanical package with careful attention to system reliability, including extensive shock, vibration, and temperature exposure.
The ADAPT ESD system should be treated with the appropriate care, as exposure to extreme environments will shorten the life expectancy of the system. Exposing the ADAPT ESD to condensing liquids, rain, sand, or situations that impair ventilation can cause excessive internal heating and performance loss.
Features
The Bently Nevada 3701/55 ADAPT Condition Monitor is a sophisticated and vital device in the field of machinery monitoring and protection.
The 3701/55 ADAPT is an advanced condition monitor designed to ensure the reliable operation and safety of industrial machinery, especially rotating equipment. It is a key component in safeguarding against potential disasters and optimizing the performance of machinery in various industrial scenarios13.
- Powerful Processing Capacity: It is equipped with three CPU modules that can process 32 discrete inputs and 12 analog inputs, enabling it to handle a large amount of data from different sensors simultaneously1.
- Diverse Signal Inputs3:
- Discrete Inputs: The device features two-terminal, dry contact polarity independent inputs with A/B terminals. It has a closed state impedance of 57 kΩ maximum and an open state impedance of 187 kΩ minimum.
- Analog Inputs: For analog inputs, it has a full scale range of 4 - 20 mA ± 1% with polarized terminals. The typical operating frequency is 0 - 159 Hz, and it has a common mode input range of ± 32 V and a differential input range of 0 - 25 mA.
- Proximity Speed Inputs: It offers auto threshold and hysteresis functions. The input voltage range is 0 to -24 VDC, with a transducer power supply of typical -24 VDC.
- Communication Capabilities: It is equipped with 6 Ethernet ports supporting 10/100 Mbps, using the TCP/IP protocol. It supports DHCP and static IP addressing, and LAN/WAN configuration modification is password protected. It also has time synchronization via NTP3.
- Wide Operating Environment Tolerance1: The monitor can operate in temperatures ranging from -30 °C to +65 °C (-22 °F to +149 °F) and can be stored in temperatures from -45 °C to +85 °C (-49 °F to +185 °F). The relative humidity range is 0% to 95% non-condensing.
- Graphical Logic Programming: It comes with a graphical logic programming interface, which allows users to easily configure and program the monitor according to specific application requirements13.
- Integrated Overspeed Detection: The device has an integrated overspeed detection function, which can quickly detect when the rotational speed of the machinery exceeds the set threshold and take corresponding measures13.
- Emergency Shutdown: It is primarily designed as a safety PLC for the emergency shutdown of rotating machinery like steam, gas, and hydro turbines, expanders, and other process equipment. In the event of abnormal conditions or the receipt of emergency signals, it can respond promptly to cut off or control the relevant equipment, ensuring production safety and equipment integrity134.
- Self-diagnostic Capability: The 3701/55 has extensive self-diagnostics, constantly monitoring its own operational status to detect any potential faults or malfunctions. This helps in reducing maintenance time and improving system reliability13.
- Power Generation Industry: It is widely used in power plants to monitor and protect turbines and generators. By precisely detecting overspeed conditions and other anomalies, it helps to prevent power outages and equipment damage, ensuring the stable operation of the power generation process.
- Oil and Gas Industry: In oil refineries, gas processing plants, and offshore platforms, the 3701/55 is used to safeguard critical rotating equipment such as pumps and compressors. It plays a crucial role in preventing equipment failures that could lead to costly production interruptions and safety hazards.
- Chemical Industry: In chemical production facilities, where there is a large amount of high-speed rotating machinery, the 3701/55 ADAPT Condition Monitor is essential for ensuring the safe and efficient operation of the equipment. It helps to maintain the stability of the production process and prevent chemical leaks and other accidents caused by equipment malfunctions.
