Product Specification Document: Bently Nevada 1900/65A-00-00-02-00-00
June 08, 2026

Product Specification Document: Bently Nevada 1900/65A-00-00-02-00-00

The 1900/65A-00-00-02-00-00 is a compact, standalone General Purpose Equipment Monitor (GPEM) from Bently Nevada (a Baker Hughes company), belonging to the 1900 Series. This specific model is a factory-configured variant optimized for 24 VDC power supply, standard relay logic, and Modbus RTU communication, designed to deliver cost-effective, continuous condition monitoring and machinery protection for small-to-medium rotating and reciprocating equipment. Integrating 24-bit high-resolution ADC technology, it accurately measures vibration, shaft position, rotational speed, and bearing/process temperature, serving as a self-contained alternative to large rack-based systems for non-critical auxiliary machinery. Engineered for harsh industrial environments, it complies with global safety, EMC, and hazardous area standards, making it ideal for deployment in oil and gas, power generation, petrochemical, water treatment, and marine facilities.

Description

Product Specification Document: Bently Nevada 1900/65A-00-00-02-00-00

1. Product Overview

The 1900/65A-00-00-02-00-00 is a compact, standalone General Purpose Equipment Monitor (GPEM) from Bently Nevada (a Baker Hughes company), belonging to the 1900 Series. This specific model is a factory-configured variant optimized for 24 VDC power supply, standard relay logic, and Modbus RTU communication, designed to deliver cost-effective, continuous condition monitoring and machinery protection for small-to-medium rotating and reciprocating equipment. Integrating 24-bit high-resolution ADC technology, it accurately measures vibration, shaft position, rotational speed, and bearing/process temperature, serving as a self-contained alternative to large rack-based systems for non-critical auxiliary machinery. Engineered for harsh industrial environments, it complies with global safety, EMC, and hazardous area standards, making it ideal for deployment in oil and gas, power generation, petrochemical, water treatment, and marine facilities.

2. Basic Product Information

Manufacturer and Model Identity

  • Manufacturer: Bently Nevada, a Baker Hughes company

  • Model Number: 1900/65A-00-00-02-00-00

  • Product Series: 1900 Series (Cordant Platform)

  • Product Type: Standalone Multi-Channel Machinery Monitor

  • Model Code Definition: The suffix -00-00-02-00-00 denotes: standard configuration, no special options, 24 VDC power supply, standard relay output logic, and no custom communication or enclosure modifications.

  • System Compatibility: 3300 XL proximity probes (8 mm/11 mm), 330400 accelerometers, 330500 velocity sensors, Type E/J/K/T thermocouples, Pt100/Pt1000 RTDs, Modbus RTU-enabled DCS/SCADA/PLC systems.

  • Country of Origin: United States

  • Key Components: Main monitor unit (167699-02), power supply module (172323-01), integrated LCD display and keypad.

Electrical Characteristics

  • Power Supply: 18–36 VDC (nominal 24 VDC, factory-configured for 24 VDC operation per -02 code).

  • Current Consumption: ~0.3 A @ 24 VDC

  • Signal Processing: 24-bit ADC per channel, 25 kHz bandwidth for high-precision data acquisition.

  • Input Channels:

    • 4 × configurable transducer inputs (proximity, velocity, acceleration, Keyphasor; 2/3-wire compatible).

    • 4 × temperature inputs (Type E/J/K/T thermocouples, 2/3-wire Pt100/Pt1000 RTDs).

  • Outputs:

    • 6 × programmable relay outputs (NO/NC, 5 A @ 30 VDC; factory-configured for standard alert/danger logic).

    • 4 × isolated 4–20 mA analog recorder outputs (±0.1% accuracy, 500 Ω maximum load).

    • 1 × buffered transducer output (raw signal for external vibration analysis).

  • Communication: Modbus RTU (RS-485, 9.6–115.2 kbps; up to 247 slave addresses).

Physical and Mechanical

  • Enclosure: Rugged metal casing with conformal-coated PCB; EMI-shielded, dust-resistant design.

  • Dimensions: 196.9 mm × 149.4 mm × 74.4 mm (7.75 in × 5.88 in × 2.93 in).

  • Net Weight: ~0.77 kg (1.7 lbs).

  • Mounting: 35 mm DIN-rail (standard), panel/divider mount compatible; optional NEMA 4X/IP66 fiberglass enclosure for harsh environments.

  • Terminations: Removable green screw terminals (12–22 AWG) for I/O, power, and communication wiring.

  • User Interface: Integrated LCD display, multi-color LED status indicators (Power, OK, Alert, Danger), and tactile pushbuttons for local configuration, data viewing, and alarm acknowledgment.

Environmental Limits

  • Operating Temperature: −20°C to +70°C (−4°F to +158°F).

  • Storage Temperature: −30°C to +90°C (−22°F to +194°F).

  • Relative Humidity: 5%–95% RH, non-condensing.

  • Vibration Resistance: 5 g (10 Hz–1 kHz); 10 g shock (11 ms half-sine).

  • Ingress Protection: IP20 (standard); IP66 (with optional NEMA 4X enclosure).

Compliance and Certification

  • Applicable Standards: API 670 (basic compliance), ISO 10816, IEC 61000-6-2 (immunity), IEC 61000-6-4 (emission).

  • Certifications: CE (EMC), cULus (safety), ATEX (EN 60079-0/15, Zone 2), RoHS (environmental), ABS (marine approval).

  • Hazardous Area Rating: Class I Zone 2/Div 2 (Groups A/B/C/D), T4 temperature class (suitable for non-incendive hazardous locations).

  • Quality Control: Manufactured under ISO 9001 quality management system; 100% factory calibrated, tested, and validated before shipment.

  • Lifecycle Status: Active production; supported for new installations, retrofits, and system expansions.

3. Function and Product Positioning

The 1900/65A-00-00-02-00-00 is a pre-configured multi-sensor standalone monitoring unit that combines vibration, position, speed, and temperature monitoring in a compact package, eliminating the need for separate monitors for each parameter. The -00-00-02-00-00 configuration ensures plug-and-play compatibility with standard 24 VDC industrial power systems and default alarm/communication settings for rapid deployment.

Core Functions

  • Multi-Parameter Simultaneous Monitoring: Measures radial vibration (displacement/velocity/acceleration), axial thrust position, rotational speed/phase (via Keyphasor), and bearing/process temperature in real time.

  • Configurable Signal Processing: Each transducer input supports 6 channel types (proximity, velocity, acceleration, Keyphasor, etc.) with adjustable scale factors, 4–8 pole filtering, and integration for custom measurement setups.

  • Independent Alarm Logic: Per-channel Alert (first-level) and Danger (second-level) setpoints with configurable hysteresis; six programmable relays for alarm, shutdown, or status indication (factory-configured for standard logic).

  • Diagnostics & Event Logging: Internal sensor/cable fault detection (OK check); 200-entry non-volatile event list with time stamps for troubleshooting, trend analysis, and compliance reporting.

  • Data Integration: Modbus RTU communication enables real-time data sharing with plant control systems; 4–20 mA outputs connect to chart recorders or DCS analog inputs.

  • Local Operation: Onboard LCD and pushbuttons allow full configuration, tuning, and data viewing without a PC; LED indicators provide at-a-glance status.

Operational Features

  • Pre-Configured for 24 VDC: The -02 code ensures compatibility with standard industrial 24 VDC power supplies, eliminating the need for external adapters.

  • Sensor Interchangeability: Compatible with all Bently Nevada 3300 series sensors; supports third-party sensors via custom configuration.

  • Hot-Swap Capability: Modules can be replaced without system shutdown (when wired appropriately).

  • Non-Volatile Memory: Configuration and event logs stored in EEPROM (no battery required for data retention).

  • Low Power Consumption: Efficient design reduces energy use and heat generation in panel enclosures.

Product Positioning

Positioned as the cost-effective, pre-configured monitoring solution for auxiliary and small-critical machinery, the 1900/65A-00-00-02-00-00 is ideal for:
  • Pumps, fans, blowers, compressors, gearboxes, and cooling tower fans in power, oil and gas, petrochemical, and water treatment plants.

  • Applications where full 3500-series rack systems are unnecessary but API 670-style protection is required.

  • Retrofits of legacy 1900/55 monitors (direct drop-in replacement kit available).

  • Marine and offshore installations (ABS certified).

  • Standard 24 VDC industrial environments requiring rapid deployment with default settings.

4. Core Performance Parameters

Measurement Performance

  • Transducer Inputs: 4 channels, configurable for 8 mm/11 mm proximity, velocity, acceleration, or Keyphasor.

  • Temperature Inputs: 4 channels, Type E/J/K/T thermocouples (−200°C to +1300°C) and 2/3-wire Pt100/Pt1000 RTDs (−200°C to +850°C).

  • Vibration Range: 0–10 kHz frequency response; 0–100 mm/s (peak) velocity, 0–10 g acceleration, 0–2.3 mm proximity gap.

  • Accuracy: ±0.1% of full scale (transducer); ±0.5°C (temperature).

  • Repeatability: ±0.05% of full scale.

  • Filtering: 4–8 pole configurable high-pass/low-pass filters for signal conditioning.

Output Performance

  • Relay Ratings: 5 A @ 30 VDC, NO/NC configurable; factory-programmed for Alert/Danger/OK status.

  • Analog Outputs: 4–20 mA, isolated, ±0.1% accuracy, 500 Ω maximum load.

  • Communication: Modbus RTU, RS-485, 9.6–115.2 kbps; supports up to 247 slave addresses.

Reliability Indicators

  • MTBF: >150,000 hours (25°C, continuous operation).

  • Standard Warranty: 1 year factory warranty; extended warranty services available.

  • Maintenance Requirements: No scheduled maintenance; annual calibration verification and visual inspection recommended.

  • Data Retention: Configuration and event logs stored in non-volatile memory (permanent storage, no battery required).

5. General Matching Accessories

Installation & Mounting

  • 35 mm DIN-rail mounting kit (standard, included).

  • Panel-mount adapter plate (optional).

  • NEMA 4X/IP66 fiberglass enclosure (weatherproof, optional).

  • Replacement LCD display module (spare part).

  • Terminal block replacement kit (spare part).

System Compatibility

  • 3300 XL 8 mm proximity probes (330101 series).

  • 330400 accelerometers, 330500 velocity sensors.

  • Type K thermocouples, Pt100 RTDs (common industrial sensors).

  • Modbus RTU-enabled DCS/SCADA/PLC systems.

  • 1900/55 retrofit kit (direct drop-in replacement).

Maintenance & Spares

  • 1900 Configuration Tool software (free download for PC-based setup).

  • Buffered output cable (for external vibration analysis).

  • Calibration verification kit (annual maintenance).

  • Factory test and calibration report (included with unit).

Documentation

  • 1900/65A Datasheet and Installation Manual (model-specific for 1900/65A-00-00-02-00-00).

  • 1900 Series Application Guide.

  • Modbus Communication Protocol Manual.

  • API 670 Compliance Guide for Auxiliary Machinery.

6. Applicable Equipment and Industry Fields

Primary Application Fields

  • Power Generation: Pumps, fans, blowers, and auxiliary compressors in thermal, combined-cycle, and nuclear power plants.

  • Oil and Gas: Offshore platform pumps, refinery blowers, gas plant compressors, and pipeline pump stations.

  • Petrochemical: Process pumps, gearboxes, cooling tower fans, and agitators in chemical production lines.

Secondary Application Fields

  • Water/Wastewater: Large supply pumps, aeration blowers, sludge digester agitators, and wastewater treatment fans.

  • Pulp and Paper: Paper machine drive motors, large fans, stock pumps, and dryer section rollers.

  • Marine/Offshore: Vessel propulsion machinery, cargo pumps, HVAC blowers, and offshore platform auxiliary equipment (ABS certified).

Compatibility Notes

  • Power Supply Restriction: Factory-configured for 24 VDC; do not connect to 110/220 VAC without an approved adapter.

  • Sensor Compatibility: Requires 3300 XL series proximity probes; not compatible with older non-XL 3300 series sensors.

  • Hazardous Area Installation: For Class I Div 1 installations, use approved safety barriers between sensors and monitor.

  • Modbus Addressing: Each 1900/65A-00-00-02-00-00 requires a unique Modbus slave address on the RS-485 network.

  • Configuration Backup: Store a copy of the device configuration in non-volatile memory or external storage for quick recovery.


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