Bently Nevada 990-10-XX-01-00 / 165353-01 Vibration Transmitter
A loop-powered 990-series vibration transmitter supplied under a dedicated modification reference.
Technical Summary
990-10-XX-01-00 / 165353-01 is a modified Bently Nevada 990 vibration-transmitter configuration. It conditions one compatible proximity-probe chain and sends a proportional two-wire current signal to machinery control equipment.
The XX length field and separate modification number mean that the installed sensor-system length and calibration must be taken from the exact label and modification record. A standard 990 length option must not be assumed.
Specifications
| Manufacturer | Bently Nevada, a Baker Hughes business |
|---|---|
| Complete Identification | 990-10-XX-01-00 / 165353-01 |
| Product Family | 990 vibration transmitter |
| Measurement Mode | Peak-to-peak shaft vibration |
| Full-Scale Code | 10 |
| System-Length Field | XX; modification-specific |
| Mounting Code | 01; 35 mm DIN-rail clips |
| Approval Code | 00; approval not selected |
| Signal Output | 4 to 20 mA DC, two-wire |
| Compatible Input | One documented proximity probe and extension cable |
| Loop Supply | +12 to +35 VDC at transmitter terminals |
| Configuration Control | Exact MOD record and calibration data required |
Features
- Integrates proximity-signal conditioning in a compact transmitter assembly.
- Provides buffered diagnostic access for gap and dynamic-signal checks.
- Uses independent zero and span adjustments for installed-loop commissioning.
- Reports a failed or invalid sensor chain through an under-range loop state.
Compatibility
- Match the modification reference to the installed probe, extension cable and target material.
- Confirm the total electrical system length from the nameplate or calibration documentation.
- Use a receiving analog input with adequate loop voltage and explicit not-OK handling.
- Do not substitute a standard 5 m or 7 m 990 solely because the front-panel range code matches.
Replacement
- Photograph the full transmitter and sensor labels before removing any component.
- Record gap, zero, span, loop supply, controller scaling and alarm setpoints.
- Replace the transmitter only after the modified chain and receiving logic are verified.
- Function-test the buffered output, normal loop range and not-OK response before return to service.
FAQ
Can 990-10-XX-01-00 / 165353-01 be replaced by a standard 990-10 transmitter?
Not from the range code alone. The XX length field and MOD reference require confirmation of the complete probe chain and calibration.
What documents are essential when ordering 990-10-XX-01-00 / 165353-01?
Provide clear labels for the transmitter, probe and extension cable plus the modification or calibration certificate and loop drawing.
Why should the sensor-system length not be inferred for 990-10-XX-01-00 / 165353-01?
The public standard ordering table uses fixed length codes; XX indicates that the applicable modified configuration must be verified separately.
Which controller checks matter after installing 990-10-XX-01-00 / 165353-01?
Confirm analog scaling, signal direction, alarm thresholds, under-range fault handling and the final machine-protection response.
Can grounded test equipment connect directly to 990-10-XX-01-00 / 165353-01 PROX OUT?
Use the recommended isolation/test-adapter arrangement because the diagnostic output is not isolated from the current loop.
What should be inspected if 990-10-XX-01-00 / 165353-01 reports not OK?
Check probe gap, connectors, cable continuity, loop power and the exact modified sensor-chain compatibility before adjusting the transmitter.
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