Product Specification Document: Bently Nevada 1900/65A-01-01-01-00-00

1. Product Overview

2. Basic Product Information

Manufacturer and Model Identity

• Manufacturer: Bently Nevada, a Baker Hughes company

• Model Number: 1900/65A-01-01-01-00-00

• Product Series: 1900 Cordant Series General Purpose Equipment Monitor

• Product Type: Standalone Multi-Channel Machinery Condition Monitor

• Model Code Definition: The full suffix -01-01-01-00-00 stands for universal AC power supply, enhanced hardware configuration, standard relay logic, default communication settings and no custom enclosure options.

• System Compatibility: 3300 XL proximity probes, velocity transducers, ICP accelerometers, Type E/J/K/T thermocouples, Pt100/Pt1000 RTDs, Modbus RTU-enabled DCS, SCADA and PLC systems

• Country of Origin: United States

• Main Components: Main monitor assembly, integrated LCD display, tactile keypad and multi-functional LED status indicators

Electrical Characteristics

• Power Supply: 90 VAC to 250 VAC, 50/60 Hz, universal industrial AC input as defined by the -01 power code

• Power Consumption: Maximum 15 W under full load operating conditions

• Signal Processing: 24-bit high-resolution ADC for all input channels, supporting wide frequency bandwidth and accurate signal conversion

• Input Channels: Four universal transducer inputs configurable for proximity, velocity, acceleration and Keyphasor signals; four dedicated temperature inputs compatible with common industrial thermocouples and 2/3-wire RTD sensors

• Output Interfaces: Six programmable SPDT relay outputs with standard alarm interlock logic; four galvanically isolated 4–20 mA analog outputs; one buffered raw signal output for external vibration analysis and troubleshooting

• Communication: RS-485 Modbus RTU interface, adjustable baud rate ranging from 9600 bps to 115200 bps

• Isolation Design: Complete galvanic isolation between power circuits, input signals, output circuits and communication ports to eliminate ground loop interference

Physical and Mechanical

• Enclosure: Heavy-duty metal housing with EMI shielding. Internal printed circuit board is protected by conformal coating against dust, moisture and mild chemical corrosion.

• Mounting: Standard 35 mm DIN rail mounting, also suitable for direct panel installation.

• Terminals: Removable screw terminal blocks, supporting 12 AWG to 22 AWG field wiring for easy wiring and maintenance.

• Human-Machine Interface: Built-in LCD screen for real-time data display and parameter setup; LED indicators clearly show power status, normal operation, alarm and fault conditions.

• Ingress Protection: IP20 rating for standard indoor industrial cabinet installation.

Environmental Limits

• Operating Temperature: -20 °C to +70 °C

• Storage Temperature: -30 °C to +90 °C

• Relative Humidity: 5% to 95% RH, non-condensing environment

• Vibration Resistance: Withstands continuous 5 g vibration within 10 Hz to 1 kHz frequency range

• Shock Resistance: Tolerates 10 g transient mechanical shock

Compliance and Certification

• Applicable Standards: API 670, ISO 10816, IEC 61000-6-2 and IEC 61000-6-4

• Certifications: CE, cULus, ATEX Zone 2, RoHS and ABS marine certification

• Hazardous Area Rating: Class I Division 2 / Zone 2, Temperature Class T4, applicable for non-incendive hazardous industrial locations

• Quality Control: Manufactured under ISO 9001 quality management system. Every unit undergoes full functional calibration and testing before delivery.

• Lifecycle Status: Actively produced and fully supported for new projects, system expansion and equipment retrofits.

3. Function and Product Positioning

Core Functions

• Full-Scope Multi-Parameter Monitoring: Simultaneously measures shaft radial vibration, axial thrust displacement, rotational speed, phase and equipment temperature to realize all-round condition monitoring of rotating machinery.

• Flexible Signal Configuration: Each transducer channel can be switched to match different sensor types. Configurable high-pass and low-pass filters as well as signal scaling functions adapt to diverse field measurement requirements.

• Hierarchical Alarm Management: Independent Alert and Danger setpoints for each channel with adjustable hysteresis. Six relays can be assigned for alarm indication or equipment shutdown interlock according to on-site demands.

• Intelligent Fault Diagnosis & Event Logging: Automatically detects sensor open circuit, short circuit and signal anomalies. The built-in non-volatile memory stores up to 200 time-stamped events for fault tracing, maintenance analysis and compliance records.

• Data Interconnection: Modbus RTU realizes real-time data upload to plant control systems. Isolated 4–20 mA outputs connect to recorders and DCS analog channels for data distribution.

• Local Operation: Onboard display and keypad support on-site data viewing, parameter configuration and alarm reset without extra software or tools.

Operational Features

• Universal AC Power Compatibility: The -01 power configuration fits global industrial AC voltage standards, requiring no external power adapter for direct connection.

• Enhanced Hardware Performance: The -01 hardware option optimizes circuit design for stronger anti-vibration and anti-electromagnetic interference ability, suitable for complex industrial field environments.

• Outstanding Sensor Compatibility: Fully compatible with the complete range of Bently Nevada 3300 XL sensors, and supports mainstream third-party industrial sensors via parameter adjustment.

• Hot-Swap Capability: The unit can be replaced during normal system operation to reduce equipment downtime and maintenance impact.

• Data Security: All configuration parameters and event logs are stored in non-volatile memory, ensuring no data loss after power interruption.

Product Positioning

4. Core Performance Parameters

Measurement Performance

• Transducer Channels: Frequency response from 0 Hz to 10 kHz; supports vibration displacement, velocity and acceleration measurement

• Temperature Channels: Thermocouple measuring range -200 °C to +1300 °C; RTD measuring range -200 °C to +850 °C

• Measurement Accuracy: ±0.1% of full scale for transducer inputs; ±0.5 °C for temperature inputs

• Repeatability: Better than ±0.05% of full scale

• Filter Options: Configurable 4-pole to 8-pole high-pass and low-pass filters

Output Performance

• Relay Specifications: Rated 5 A at 30 VDC; normally open and normally closed contacts are configurable

• Analog Output: 4–20 mA isolated output, maximum load 500 Ω, output accuracy ±0.1% full scale

• Communication Performance: Modbus RTU protocol, supports up to 247 slave devices on a single RS-485 network

Reliability

• MTBF: More than 150,000 hours under standard 25 °C operating environment

• Warranty: 1-year standard factory warranty, extended warranty services are available

• Maintenance: No mandatory routine maintenance. Annual calibration verification and visual inspection are recommended for long-term operation.

5. General Matching Accessories

Installation and Mounting Accessories

• Standard 35 mm DIN rail mounting hardware (included)

• Optional panel mounting adapter plate

• External protective enclosure for dusty or open-air installation

• Spare terminal blocks and display components

Compatible System Products

• 3300 XL series proximity probes and matched extension cables

• Industrial velocity sensors and ICP accelerometers

• Standard thermocouples and Pt100 RTD sensors

• Modbus RTU-based DCS, PLC and remote monitoring terminals

Maintenance and Spare Parts

• Official 1900 Series configuration software

• Calibration verification tools

• Conformal coating repair materials

• Factory calibration report and full test documents (included with delivery)

Supporting Documentation

• Dedicated datasheet and installation manual for 1900/65A-01-01-01-00-00

• 1900 Series overall application guide

• Modbus RTU communication protocol specification

• API 670 application guideline for auxiliary machinery monitors

6. Applicable Equipment and Industry Fields

Primary Applications

• Power Generation: Auxiliary water pumps, cooling fans, blowers and small compressors in thermal power and combined-cycle power plants

• Oil and Gas: Refinery fans, offshore platform pumps, auxiliary compressors and pipeline conveying equipment

• Petrochemical: Process pumps, cooling tower fans, agitators and transmission gear units on chemical production lines

Secondary Applications

• Water and Wastewater Treatment: Large water supply pumps, aeration blowers and processing fans

• Pulp and Paper: Paper machine drive fans, stock pumps and auxiliary transmission equipment

• Marine and Offshore: Vessel auxiliary pumps, ventilation fans and non-critical rotating equipment on offshore platforms

Compatibility Notes

• Power Requirement: This model is designed for 90–250 VAC input. Do not connect to DC power outside the specified range.

• Sensor Matching: Must be used with 3300 XL series proximity probes; incompatible with old-style non-XL 3300 sensors.

• Network Setting: Assign a unique Modbus slave address to each unit when multiple monitors are connected on one network to avoid communication conflicts.

• Hazardous Area Installation: When deployed in Class I Division 1 hazardous areas, install certified external safety barriers between sensors and the monitor.