BENTLY 1900/65A-00-01-01-00-01 Product Introduction
1. Product Overview
The BENTLY 1900/65A-00-01-01-00-01 is a high-precision vibration monitoring module designed for industrial rotating machinery protection—specifically engineered to track radial and axial vibration, as well as shaft position, in critical equipment like turbines, compressors, pumps, and motors. As a core component of Bently Nevada’s 1900 Series monitoring systems, it integrates advanced signal processing, real-time data analysis, and failsafe alarm logic to prevent machinery damage, reduce unplanned downtime, and ensure compliance with industrial safety standards (e.g., API 670).
Ideal for oil & gas, power generation, and petrochemical industries, this module works seamlessly with Bently’s proximity probes (e.g., 3300 XL series) and monitoring racks, providing reliable insights into machinery health. Its modular design allows for easy integration into existing control systems (e.g., DCS, SCADA) via standard communication protocols, making it a versatile choice for both new installations and retrofits.
2. Technical Parameters (Table)
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Category
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Specification
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Monitoring Type
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Radial vibration, axial vibration, shaft position (displacement)
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Input Compatibility
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2-channel proximity probe input; Compatible with Bently 3300 XL/3500 probes
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Input Range
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Displacement: 0–2000 μm (0–80 mils); Vibration: 0–500 μm pk-pk (0–20 mils pk-pk)
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Measurement Accuracy
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±0.5% of full scale (at 25°C ±5°C)
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Signal Processing
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Sampling rate: 10 kHz per channel; Filtering: 0.1 Hz–1 kHz (adjustable)
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Output Signals
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4–20 mA analog output (per channel); Relay outputs: 2×SPDT (alarm/trip); Digital output: RS485 (Modbus RTU)
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Alarm Logic
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Dual-level alarms (warning/trip); Adjustable setpoints; Hysteresis control
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Power Supply
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Input voltage: 24 VDC ±10%; Power consumption: ≤10 W (max load)
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Environmental Ratings
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Operating temperature: -40°C to 70°C (-40°F to 158°F); Storage temperature: -55°C to 85°C (-67°F to 185°F); Humidity: 5%–95% (non-condensing); Protection class: IP20 (module), IP54 (rack-mounted)
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Physical Dimensions
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Width: 32 mm (1.26 in); Height: 100 mm (3.94 in); Depth: 150 mm (5.91 in); Weight: ≤200 g (0.44 lbs)
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Certifications
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IEC 61010-1 (safety); IEC 61326-1 (EMC); ATEX Zone 2 (Ex nA IIC T4 Ga); UL 61010-1; CSA C22.2 No. 61010-1
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3. Product Specifications & Features
3.1 Core Specifications
The BENTLY 1900/65A-00-01-01-00-01 is built to deliver consistent performance in harsh industrial environments, with specifications tailored to rotating machinery protection. It supports two independent proximity probe channels, allowing simultaneous monitoring of radial vibration (to detect imbalance, misalignment, or bearing wear) and shaft position (to track axial movement in turbines or compressors). The module’s input range covers 0–2000 μm for displacement and 0–500 μm pk-pk for vibration, making it suitable for both small pumps and large turbines.
In terms of signal integrity, the module features a 10 kHz sampling rate per channel—fast enough to capture high-frequency vibration spikes that indicate early-stage machinery issues—and adjustable filtering (0.1 Hz–1 kHz) to eliminate background noise. The 4–20 mA analog outputs provide real-time data to DCS or SCADA systems, while the RS485 (Modbus RTU) digital interface enables remote configuration and data logging. For safety, dual-level alarms (warning and trip) with adjustable setpoints and hysteresis prevent false triggers, ensuring timely response to abnormal conditions.
3.2 Key Features
- High Measurement Precision: With ±0.5% full-scale accuracy, the module provides reliable data for predictive maintenance—critical for identifying subtle vibration changes that precede machinery failure. This precision aligns with API 670 standards, making it suitable for regulated industries like power generation.
- Rugged Environmental Tolerance: Operating from -40°C to 70°C and resisting 5%–95% non-condensing humidity, the module performs consistently in extreme temperatures (e.g., desert power plants or arctic pipelines) and damp environments (e.g., petrochemical refineries). Its ATEX Zone 2 certification also allows use in hazardous areas with flammable gases (with proper installation).
- Seamless System Integration: The module works with Bently’s 1900 Series racks and 3300 XL/3500 proximity probes, creating a complete monitoring solution. It also integrates with third-party control systems via 4–20 mA analog outputs or Modbus RTU, enabling easy integration into existing workflows without extensive reconfiguration.
- Failsafe Alarm Design: Dual-level alarms (warning and trip) with SPDT relay outputs ensure that operators are alerted to abnormal conditions—first with a warning to investigate, and then a trip signal to shut down machinery if risks escalate. Hysteresis control prevents frequent alarm toggling, reducing operator fatigue and false shutdowns.
- Easy Configuration & Maintenance: The module can be configured via a local HMI (when mounted in a 1900 Series rack) or remotely via Modbus RTU, eliminating the need for on-site adjustments in hard-to-reach locations. Its modular design also allows for quick replacement if needed, minimizing downtime during maintenance.
4. Other BENTLY Monitoring Products
Bently Nevada (a Baker Hughes company) offers a range of complementary products for rotating machinery monitoring, including:
- 3500/42M-01-00: A 4-channel vibration monitoring module for large-scale systems (e.g., gas turbines), supporting both proximity probes and accelerometers.
- 3300 XL 8mm Probe: A high-temperature proximity probe (up to 220°C) compatible with the 1900/65A module, designed for turbine and compressor applications.
- 1900/20A-00-00: A single-channel vibration module for smaller machinery (e.g., pumps), offering cost-effective protection for non-critical equipment.
- 3500/92: A communication gateway that connects 3500 Series modules to Ethernet-based systems (e.g., OPC UA), enabling cloud-based data analytics for predictive maintenance.
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