Bently Nevada 990-10-70-03-00 Vibration Transmitter
A wider-span general-purpose transmitter with both DIN-rail and bulkhead mounting hardware.
Product Overview
990-10-70-03-00 is a 990-series transmitter configured for applications needing the widest measurement span in this batch. It connects to one correctly matched 3300 NSv chain and reports shaft-relative vibration through a two-wire loop.
The dual mounting package supports cabinet flexibility, while the approval suffix remains general purpose. Range, length and approval differences make it unsuitable for casual substitution with nearby 990 codes.
Performance
- Provides additional vibration headroom for machinery whose normal or alarm envelope exceeds narrower transmitter spans.
- Maintains loop-based compatibility with standard control-system analog inputs.
- Enables direct service checks without interrupting the main analog measurement.
Technical Details
| Manufacturer | Bently Nevada, a Baker Hughes business |
|---|---|
| Complete Model | 990-10-70-03-00 |
| Full-Scale Range | 0 to 10 mil peak-to-peak (0 to 250 µm peak-to-peak) |
| System Length | 7.0 m (23.0 ft) |
| Mounting Hardware | DIN-rail clips and bulkhead screws |
| Agency Approval | Not required |
| Compatible Sensor Chain | 3300 NSv probe and extension cable |
| Frequency Band | 5 Hz to 6 kHz |
| Loop Output | 4 to 20 mA DC |
| Power Input | +12 to +35 VDC at terminals |
| Probe Linear Window | 55 mil (1.4 mm) |
| Buffered Scale Factor | 200 mV/mil (7.87 mV/µm) |
System Integration
- Update the receiving channel and HMI engineering units for the selected range.
- Review alarm setpoints so they remain meaningful after any change from a narrower transmitter.
- Confirm loop power, resistance and fault-state handling before commissioning.
Applications
- Higher-amplitude shaft vibration
- Dual-mount cabinet standards
- General-purpose rotating machinery
FAQ
Can 990-10-70-03-00 replace a lower-range 990 transmitter?
Only after engineering review; the receiving scale, alarm thresholds and measurement resolution all change with the full-scale option.
Why does 990-10-70-03-00 include two mounting methods?
The 03 mounting code supplies DIN clips and screws, allowing the documented cabinet design to choose either arrangement.
Is 990-10-70-03-00 approved for hazardous locations?
The final 00 approval code does not select an agency approval, so the installation environment must permit that execution.
What sensor chain is required for 990-10-70-03-00?
Use matching 3300 NSv components whose combined electrical length matches the transmitter order code.
What must be rechecked if 990-10-70-03-00 changes the previous range?
Revalidate analog scaling, display units, alarms, trips, trends and the acceptance-test method.
What should be supplied with a 990-10-70-03-00 enquiry?
Send the old transmitter label, complete sensor chain, expected vibration range, mounting choice, loop input and area classification.
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