Accepts four configurable transducer inputs for acceleration, velocity, displacement, position or speed channel types.
Product Overview
1900/65A is a Bently Nevada general-purpose equipment monitor designed for continuous monitoring and protection across pumps, fans, motors, compressors and other balance-of-plant machinery.
This page identifies the 1900/65A base family. Power, display, mounting, communications and approval selections must be taken from the complete order code rather than inferred from the family name.
Performance
Adds four temperature inputs for supported thermocouples or two- and three-wire RTDs.
Provides six configurable relay outputs, four 4-20 mA recorder outputs and a dedicated buffered signal output.
Stores the downloaded monitor configuration in nonvolatile memory and supports upload for controlled changes.
Technical Details
| Manufacturer | Bently Nevada, a Baker Hughes business |
|---|---|
| Product family | 1900/65A General Purpose Equipment Monitor |
| Transducer inputs | 4 configurable channels |
| Supported transducers | 2- or 3-wire accelerometers, velocity sensors and proximity sensors |
| Temperature inputs | 4 |
| Thermocouple support | Types E, J, K and T |
| RTD support | 2- or 3-wire |
| Relay outputs | 6 configurable outputs |
| Recorder outputs | 4 outputs at 4-20 mA |
| Buffered output | 1 dedicated output selectable for each transducer input |
| Configuration connection | Built-in Ethernet |
| Configuration storage | Nonvolatile memory |
| Optional communications | Modbus Gateway with Ethernet and configurable RS-232/485 |
| Optional display | Display/keypad; remote mounting up to 75 m / 250 ft |
| Ordering control | Full option code required for power, display, mounting, communications and approvals |
System Integration
- Export the complete monitor configuration, register map, alarm logic and event information before replacement.
- Record the sensor type, scale, bias, channel processing and temperature-sensor wiring for all eight inputs.
- Verify relay fail-safe state, OK/Alert/Danger voting and every 4-20 mA destination with the plant cause-and-effect record.
- Select the replacement from the complete 1900/65A order code; the bare family name does not define installed options.
Applications
- Continuous protection of pumps, blowers, cooling-tower fans and electric motors.
- Monitoring of air compressors, small reciprocating compressors, pulverizers and centrifuges.
- General-purpose machinery requiring combined vibration and temperature inputs with local relay action.
FAQ
What information is required to quote a complete 1900/65A?
Provide photographs of the full order-code label, power input, display arrangement, mounting, communication option and approval markings.
Can a configured 1900/65A be replaced from the family name alone?
No. The base name does not define power, display, mounting, communications or certification options, so the complete order code is required.
What configuration should be backed up before changing 1900/65A?
Save channel types, transducer scales, filters, alarm levels and delays, relay logic, recorder assignments and the Modbus register map.
How should 1900/65A relay behavior be tested?
Use the approved cause-and-effect procedure to prove normal, Alert, Danger, not-OK and power-loss states without exposing the machine to an unintended trip.
What field records help commission a replacement 1900/65A?
Keep sensor bias or baseline values, temperature checks, 4-20 mA loop readings, relay results and time-synchronized event checks for every channel.
About IndustryParts
https://www.industryparts.com/Full option code before monitor replacement
IndustryParts keeps the complete 1900/65A order code, configuration file and channel map together so family-level identity is not mistaken for an installed execution.
- Order code required
- Configuration retained
- Channel map reviewed
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