The BENTLY NEVADA 1900/27 is a single-channel, standalone vibration monitor designed for machinery vibration monitoring systems. It is part of Bently Nevada’s 2700 Series and is a locally mounted vibration monitor. Below is a detailed introduction to the product:
Product Overview
The BENTLY NEVADA 1900/27 is a single-channel, standalone, locally mounted vibration monitor. It can serve as a standalone machinery protection device, suitable for general-purpose or essential machinery. It features a built-in 4-20 mA interface for trending monitored parameters in plant control and automation systems. The BENTLY NEVADA 1900/27 accepts a single transducer input from compatible Trendmasters 2000 accelerometers, conditions the signal into peak velocity units, and provides local display and status indication. It also offers alarm relay contact outputs for connection to an external annunciator. By utilizing the optional Rack Buffered Output Transducer Interface Module (TIM), the BENTLY NEVADA 1900/27 can be integrated with the Trendmasters 2000 system, enabling machinery protection capabilities for all (or selected) seismic vibration points of the Trendmasters 2000 system. Its compact size and lightweight design make it easy to install and integrate into tight spaces. With a robust construction, it can withstand harsh industrial environments, providing reliable vibration monitoring for machinery in various industries. The BENTLY NEVADA 1900/27 is widely used in power generation, oil and gas, chemical, mining, and other sectors to monitor the vibration of rotating machinery such as pumps, fans, compressors, and motors. It helps prevent equipment failure, ensures operational safety, and reduces unexpected downtime.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | BENTLY NEVADA 1900/27 |
| Manufacturer | Bently Nevada |
| Product Type | Vibration Monitor |
| Compatible Transducers | Bently Nevada 200150 and 190520 Accelerometers |
| Input Sensitivity | 100 mv/g |
| Maximum Acceleration | 20 g peak |
| Maximum Differential Input Voltage | 4 volts peak to peak |
| Power Supply | AC Voltage: 85 to 264 Vac; DC Voltage: 110 to 370 Vdc |
| Current Draw | 60 mA typical, 120 mA maximum |
| Frequency | 47 Hz to 440 Hz or DC |
| Inrush Current | 20A typical @ Vin=100Vac; 40A typical @ Vin=200Vac |
| +24 Vdc Power Version Voltage | 18 to 36 Vdc |
| +24 Vdc Power Version Current Draw | 300 mA maximum |
| Transducer Power Supply | 24 Vdc |
| Input Impedance | 20 k Ohm |
| Output Impedance | 500 Ohm |
| Built-in Interface | 4-20 mA interface |
| Display | Local LCD display showing vibration level, alarm status, and other diagnostic information |
| Relay Outputs | Two programmable alarm relays |
| Number of Channels | 12 |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +70°C |
| Humidity | 95% RH non-condensing |
| Dimensions | 165mm x 85mm x 36mm |
| Weight | Approx. 250g |
Key Features and Benefits
The BENTLY NEVADA 1900/27 boasts several key features and benefits:
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Versatile Compatibility: It is compatible with Bently Nevada 200150 and 190520 accelerometers and can connect to the Trendmasters 2000 system via an optional Rack Buffered Output Transducer Interface Module (TIM). This allows it to work with a variety of transducers and systems, meeting diverse monitoring requirements.
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High Measurement Accuracy: Its operating range is 0 to 20 kHz, with measurement accuracy of ±0.5% of full scale, ensuring precise vibration monitoring and reliable data for equipment condition assessment.
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Rich Output Interfaces: It features a built-in 4-20 mA interface for trending monitored parameters in plant control and automation systems. It also provides local display and status indication, along with alarm relay contact outputs for connection to external annunciators. This enables real-time monitoring and alarm notifications for machinery vibration, facilitating timely issue resolution.
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Excellent Environmental Adaptability: Its operating temperature ranges from -20°C to +70°C, and it can withstand high humidity (95% RH non-condensing). It is designed to endure harsh industrial environments and maintain stable performance.
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User-Friendly Configuration: It supports on-board diagnostics for sensor and system health, with user-configurable alarm levels and time delays. An optional keypad allows for local configuration, making it convenient for users to set parameters and customize monitoring functions.
Application Scenarios
The BENTLY NEVADA 1900/27 is widely used in various industries for machinery vibration monitoring. In power generation plants, it monitors the vibration of turbines, generators, and other critical equipment, enabling early detection of potential issues to prevent equipment failure and ensure stable power generation. In oil and gas refining facilities, it monitors the vibration of compressors, pumps, and other rotating machinery, helping optimize equipment operation and preventing leaks or accidents caused by excessive vibration. In chemical plants, it monitors the vibration of reactors, centrifuges, and other equipment to ensure safe and stable chemical processes. In mining operations, it monitors the vibration of crushers, ball mills, and other heavy machinery, enabling timely maintenance and reducing equipment downtime.
Related Models
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1900/25 Monitor: Suitable for applications requiring connectivity to Bently Nevada’s Trendmasters 2000 system without the need for a 4-20 mA interface to other systems.
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1900/27-01-00: A vibration monitor with a built-in 4-20 mA interface, input sensitivity of 100 mv/g, maximum acceleration of 20 g peak, alarm relay contacts, and dimensions of 50.8 mm wide x 22.8 mm.
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1900/27-03: A single-channel vibration monitor designed for condition monitoring of rotating machinery. It accepts a single transducer input from compatible accelerometers, conditions the signal into peak velocity units, and provides local display and status indication, along with alarm relay contact outputs for connection to external annunciators.
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1900/27-01: A single-channel, standalone vibration monitor for machinery protection. It monitors and trends vibration levels in machinery, providing critical data to prevent equipment failure and ensure operational safety.
Installation and Maintenance
Prior to installing the BENTLY NEVADA 1900/27, ensure the installation location meets the following requirements: temperature range of -20°C to +70°C, humidity below 95% RH non-condensing, and protection from direct sunlight, rainwater, and corrosive gases. The installation location should also provide ample space for heat dissipation and maintenance. The BENTLY NEVADA 1900/27 can be mounted locally on machinery or installed in a control cabinet. When installing, secure the monitor firmly to prevent loosening during operation. Connect the compatible accelerometer to the monitor and ensure the wiring is secure and reliable. For power supply, the monitor supports AC voltage of 85 to 264 Vac or DC voltage of 110 to 370 Vdc. Select the appropriate power supply based on the actual installation environment and connect it correctly. Regular maintenance of the BENTLY NEVADA 1900/27 includes cleaning the monitor’s exterior to remove dust and debris, inspecting the wiring connections for loosening or damage, and checking the accelerometer’s performance to ensure accurate and reliable measurement data. It is recommended to perform a comprehensive inspection and maintenance of the monitor every six months.
Product Warranty
Bently Nevada provides a one-year warranty for the BENTLY NEVADA 1900/27, covering manufacturing defects and performance issues under normal operating conditions. During the warranty period, users can contact Bently Nevada or its authorized service centers for free repairs or replacements. Beyond the warranty period, users can opt for paid repair services. Bently Nevada’s global support network ensures users receive timely technical support and after-sales service. Additionally, Bently Nevada offers comprehensive documentation, technical support, and warranty services for the BENTLY NEVADA 1900/27, providing users with peace of mind and safeguarding their interests.
| BENTLY | 128275-01-E | Board interface module |
| BENTLY | 128276-01 | Fault-tolerant board |
| BENTLY | 128276-011 | Power module |
| BENTLY | 128277-01 | Cable/terminal/Matching |
| BENTLY | 131151-01 | Control board terminal |
| BENTLY | 135489-03 | Dual output module |
| BENTLY | 135613-02 | External control board terminates |
| BENTLY | 136188-01 | Digital input terminal panel |
| BENTLY | 136719-01 | board card |
| BENTLY | 146031-01 | DO card |
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