BENTLY 1900/65A

Simplified integration: The 1900/65A is designed for plug-and-play functionality, reducing installation time and complexity. Its compatibility with standard proximity probes—both Bently Nevada and third-party models—eliminates the need for specialized components, making it easy to integrate into existing systems. The module’s clear labeling and straightforward wiring scheme further streamline setup, allowing maintenance teams to get it operational with minimal training.

Versatile monitoring capabilities: Beyond basic displacement measurement, the 1900/65A offers advanced features such as peak-to-peak vibration calculation and trend analysis. This versatility allows it to adapt to diverse applications, from monitoring pump shaft position in water treatment plants to tracking rotor movement in industrial fans. Its 4-channel design enables simultaneous monitoring of multiple machine points, providing a holistic view of equipment health.

Cost-effective reliability: Balancing performance and affordability, the 1900/65A delivers professional-grade monitoring without the premium price tag of high-end systems. Its robust electronics and durable housing ensure consistent performance in industrial environments, while low power consumption reduces long-term operational costs. For facilities seeking reliable machinery protection on a budget, the 1900/65A offers an unbeatable combination of value and functionality.

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Description

Detailed parameter table

Parameter name Parameter value
Product model 1900/65A
Manufacturer Bently Nevada (a division of GE Vernova)
Product category Proximity transducer system monitor
Operating voltage 18-32V DC
Operating temperature 0°C to 60°C (32°F to 140°F)
Relative humidity 5% to 95% (non-condensing)
Input channels 4 independent proximity probe channels
Output signals 4-20mA DC per channel, relay outputs for alarms
Communication protocols RS485 (Modbus RTU), optional Ethernet gateway
Physical dimensions 145mm x 110mm x 75mm (width x height x depth)
Installation method Panel mount with DIN rail adapter option
Measurement range -2.0mm to +2.0mm (-0.08in to +0.08in) for shaft displacement
Accuracy ±0.5% of full scale
MTBF (Mean Time Between Failures) >80,000 hours
BENTLY 1900/65A

BENTLY 1900/65A

Product introduction

The 1900/65A from Bently Nevada is a compact yet powerful proximity transducer system monitor, engineered to provide precise measurement of shaft displacement, position, and vibration in rotating machinery. As part of Bently Nevada’s 1900 series—a line renowned for reliability in mid-range machinery protection—the 1900/65A strikes a balance between advanced functionality and user-friendly operation, making it ideal for both retrofits and new installations.

Designed to work seamlessly with Bently Nevada’s proximity probes, the 1900/65A converts raw sensor data into actionable insights, enabling operators to monitor critical parameters like shaft position in pumps, motors, and compressors. Its ability to deliver real-time measurements and trigger alarms ensures timely intervention, preventing equipment damage and unplanned downtime. By combining rugged construction with intuitive setup, the 1900/65A has become a trusted solution for industries where machinery health directly impacts operational efficiency.

Core advantages and technical highlights

Simplified integration: The 1900/65A is designed for plug-and-play functionality, reducing installation time and complexity. Its compatibility with standard proximity probes—both Bently Nevada and third-party models—eliminates the need for specialized components, making it easy to integrate into existing systems. The module’s clear labeling and straightforward wiring scheme further streamline setup, allowing maintenance teams to get it operational with minimal training.

Versatile monitoring capabilities: Beyond basic displacement measurement, the 1900/65A offers advanced features such as peak-to-peak vibration calculation and trend analysis. This versatility allows it to adapt to diverse applications, from monitoring pump shaft position in water treatment plants to tracking rotor movement in industrial fans. Its 4-channel design enables simultaneous monitoring of multiple machine points, providing a holistic view of equipment health.

Cost-effective reliability: Balancing performance and affordability, the 1900/65A delivers professional-grade monitoring without the premium price tag of high-end systems. Its robust electronics and durable housing ensure consistent performance in industrial environments, while low power consumption reduces long-term operational costs. For facilities seeking reliable machinery protection on a budget, the 1900/65A offers an unbeatable combination of value and functionality.

Typical application scenarios

In water and wastewater treatment plants, the 1900/65A is widely used to monitor the shaft position of large pumps and mixers. By tracking axial and radial movement, it detects issues like bearing wear or impeller imbalance early, preventing costly failures that could disrupt water supply. Its ability to operate in damp environments and resist corrosion makes it well-suited to the humid conditions of treatment facilities.

Within the food and beverage industry, the 1900/65A safeguards critical machinery such as conveyor motors and processing mixers. In facilities where hygiene is paramount, its compact design allows for installation in tight spaces without compromising cleanliness, while its reliable alarm system ensures that even minor deviations in shaft movement are flagged before they affect production quality.

In HVAC systems for commercial buildings and industrial complexes, the 1900/65A monitors the performance of large air handling units and chillers. By tracking fan and compressor shaft vibration, it helps facility managers schedule maintenance during off-peak hours, avoiding disruptions to climate control services. Its compatibility with building management systems (BMS) allows for centralized monitoring, simplifying overall facility operations.

BENTLY 1900/65A

BENTLY 1900/65A

Related model recommendations

1900/55: A 2-channel version of the 1900/65A, ideal for smaller systems or applications requiring fewer monitoring points, offering the same reliability in a more compact form.

3300/16: A higher-channel count monitor that upgrades from the 1900/65A, suitable for large-scale machinery with multiple measurement points, part of Bently Nevada’s premium 3300 series.

1900/20: A power supply module specifically designed to pair with the 1900/65A, ensuring stable voltage delivery for consistent performance in 1900 series setups.

3500/40: A vibration monitor from the advanced 3500 series, serving as an upgrade path for users needing more sophisticated analytics than the 1900/65A provides.

1900/60: A relay module that works with the 1900/65A to extend alarm capabilities, allowing for custom response triggers based on monitored parameters.

2100/08: A portable vibration analyzer that complements the 1900/65A by providing on-demand diagnostic checks, ideal for troubleshooting specific machinery issues.

1900/95: A communication interface module that enables the 1900/65A to connect to Ethernet networks, enhancing data accessibility for remote monitoring.

Installation, commissioning and maintenance instructions

Installation preparation: Before installing the 1900/65A, confirm that the mounting surface is flat and vibration-free to avoid measurement interference. Ensure the operating environment meets temperature and humidity specifications, and keep the module away from direct sunlight or heat sources. Use shielded cables for probe connections to minimize electrical noise, and verify that the power supply falls within the 18-32V DC range. During mounting, secure the module firmly using the provided hardware to prevent movement that could affect signal stability.

Maintenance suggestions: Perform quarterly inspections of the 1900/65A to check for loose connections or dust accumulation, which can impact performance. Calibrate the module annually using Bently Nevada’s calibration kit to maintain measurement accuracy. If an alarm is triggered, first check probe alignment and cable integrity before assuming a module fault—many issues stem from external factors rather than internal component failure. When replacing probes or cables, ensure they meet the 1900/65A’s specifications to avoid compatibility issues.

Service and guarantee commitment

The 1900/65A comes with a 2-year warranty, covering manufacturing defects and ensuring reliable performance from the date of installation. Bently Nevada’s global support network provides technical assistance via phone, email, and online portals, with response times guaranteed within 24 hours for critical issues.

We offer on-site commissioning services to ensure the 1900/65A is optimally configured for your specific application, as well as training courses tailored to both operators and maintenance staff. For extended coverage, optional service contracts include preventive maintenance checks and priority access to replacement parts, ensuring minimal downtime in case of unexpected issues. Backed by Bently Nevada’s decades of expertise in machinery protection, the 1900/65A is a product we stand behind with confidence.

 

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