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

1. Product Overview

2. Basic Product Information

Manufacturer and Model Identity

• Manufacturer: Bently Nevada, Baker Hughes

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

• Product Series: 1900 Cordant Series General Purpose Equipment Monitor

• Product Type: Standalone Multi-Parameter Machinery Monitor

• Model Code Explanation: The suffix -01-00-01-00-00 represents standard AC power supply configuration, no special hardware modification, standard relay definition, default communication and enclosure options.

• System Compatibility: 3300 XL proximity probes, velocity transducers, ICP accelerometers, standard thermocouples and RTD sensors; Modbus RTU compatible DCS, SCADA and PLC systems

• Country of Origin: United States

• Main Components: Main monitor unit, integrated LCD display, tactile operation keypad and status indicator LEDs

Electrical Characteristics

• Power Supply: 90 to 250 VAC, 50/60 Hz, factory configured for universal AC input per the -01 code

• Power Consumption: Maximum 15 W under full load operation

• Signal Acquisition: 24-bit high-precision ADC for all input channels, ensuring stable and accurate signal conversion

• Input Channels: Four configurable transducer inputs for proximity, velocity, acceleration and Keyphasor signals; four temperature inputs supporting Type E, J, K, T thermocouples and 2-wire / 3-wire Pt100 / Pt1000 RTDs

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

• Communication Interface: RS-485 Modbus RTU, configurable baud rate from 9600 bps to 115200 bps

• Electrical Isolation: Galvanic isolation between input, output, power and communication ports to prevent ground loop interference

Physical and Mechanical

• Enclosure: Reinforced metal housing with EMI shielding; internal PCB coated with conformal coating for dust, moisture and chemical resistance

• Mounting Mode: Standard 35 mm DIN rail mounting, also applicable for panel installation

• Terminals: Removable screw terminal blocks, compatible with 12 AWG to 22 AWG field wiring

• Human-Machine Interface: Built-in LCD screen for real-time data display and parameter setting; multi-color LED indicators for power, running status, alarm and fault prompts

• Ingress Protection: IP20 for standard indoor installation

Environmental Limits

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

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

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

• Vibration Resistance: Withstands 5 g continuous 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, IEC 61000-6-4

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

• Hazardous Area Rating: Class I Division 2 / Zone 2, temperature class T4, suitable for non-incendive hazardous industrial areas

• Quality Management: Manufactured in accordance with ISO 9001 quality system, 100% factory calibration and functional testing before delivery

• Lifecycle Status: In active production, providing complete technical support and after-sales service for new projects and equipment retrofits

3. Function and Product Positioning

Core Functions

• Multi-Parameter Integrated Monitoring: Collect real-time data including shaft radial vibration, axial thrust displacement, rotational speed, phase and bearing temperature to realize full-condition monitoring of rotating equipment.

• Flexible Signal Processing: Each transducer channel can be switched to match different types of sensors, equipped with configurable filters and signal scaling functions to adapt to various measurement requirements.

• Hierarchical Alarm Management: Independent Alert and Danger alarm thresholds for each channel with adjustable hysteresis; six relays can be flexibly assigned to alarm indication or equipment interlock protection according to on-site demands.

• Fault Diagnosis and Event Recording: Automatic detection of sensor disconnection, short circuit and signal abnormality; built-in non-volatile event log records alarms, faults and operation records with time stamps for equipment maintenance and fault tracing.

• Data Interconnection: Modbus RTU communication realizes data upload to the plant control system; 4–20 mA analog outputs connect to recorders and DCS analog channels to complete data distribution.

• Local Operation: The integrated display and keypad support on-site viewing of operating data, parameter configuration and alarm reset without additional configuration tools.

Operational Features

• Universal AC Power Supply: The -01 power configuration adapts to global industrial AC voltage standards, no external power adapter required for direct connection to on-site AC power distribution.

• Standard Default Settings: Factory preset standard relay logic and communication parameters, realizing plug-and-play for conventional application scenarios.

• Strong Sensor Compatibility: Fully compatible with full series of Bently Nevada 3300 XL sensors, and supports third-party standard industrial sensors through parameter adjustment.

• Hot-swap Support: Field replacement of the unit is allowed under normal operating conditions to reduce equipment downtime.

• Data Security: Configuration data and event logs are stored in non-volatile memory, and data will not be lost after power failure.

Product Positioning

4. Core Performance Parameters

Measurement Performance

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

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

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

• Repeatability: Better than ±0.05% full scale

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

Output Performance

• Relay Parameters: Rated 5 A at 30 VDC, normally open and normally closed contacts configurable

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

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

Reliability

• Mean Time Between Failures: Over 150,000 hours under 25 °C normal operating environment

• Warranty: 1 year standard factory warranty, extended warranty available

• Maintenance: No mandatory regular maintenance; annual calibration verification and visual inspection are recommended

5. General Matching Accessories

Installation and Mounting Accessories

• Standard 35 mm DIN rail mounting parts

• Optional panel mounting adapter plate

• Protective enclosure for outdoor or harsh dust environment

• Replacement terminal blocks and display components

Compatible System Products

• 3300 XL series proximity probes and matching cables

• Industrial velocity sensors and ICP accelerometers

• Standard industrial thermocouples and Pt100 RTD sensors

• Modbus RTU based DCS, PLC and remote monitoring terminals

Maintenance and Spare Parts

• Official 1900 series configuration software

• Calibration inspection tools

• Conformal coating maintenance materials

• Factory calibration report and test documents

Supporting Documentation

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

• 1900 series system application guide

• Modbus RTU communication protocol specification

• API 670 implementation guide for auxiliary machinery monitors

6. Applicable Equipment and Industry Fields

Primary Applications

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

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

• Petrochemical Industry: 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 Industry: Drive fans, material pumps and auxiliary transmission equipment of paper machines

• Marine Industry: Ship auxiliary pumps, ventilation fans and offshore platform non-critical rotating equipment

Compatibility Notes

• Power Matching: This model is designed for 90–250 VAC power supply, do not connect to DC power beyond the specification range.

• Sensor Matching: It must be used with 3300 XL series proximity probes, and is not compatible with old non-XL 3300 sensors.

• Network Setting: When multiple units are connected to Modbus network, set independent slave addresses for each device to avoid communication conflict.

• Hazardous Area Use: When applied in Class I Division 1 hazardous areas, external certified safety barriers must be equipped between sensors and the monitor.