Bently Nevada 990-05-70-01-00 Vibration Transmitter
A DIN-rail proximity transmitter configured for a longer general-purpose 3300 NSv measurement chain.
Product Overview
990-05-70-01-00 is a loop-powered vibration transmitter that accepts one compatible 3300 NSv sensor chain. It delivers a direct analog variable to machine control equipment while retaining a buffered proximity connection for service work.
This order code combines a longer sensor system with clip mounting and no agency approval. Those choices make it distinct from both the shorter 50-length model and the fully approved 03-05 execution.
Performance
- Provides continuous proportional vibration feedback for control, trending and alarm functions.
- Maintains sensor-condition visibility through an under-range not-OK indication.
- Supports both static gap checks and dynamic waveform observation from the buffered connection.
Technical Details
| Manufacturer | Bently Nevada, a Baker Hughes business |
|---|---|
| Complete Model | 990-05-70-01-00 |
| Full-Scale Range | 0 to 5 mil peak-to-peak (0 to 125 µm peak-to-peak) |
| System Length | 7.0 m (23.0 ft) |
| Mounting Option | 35 mm DIN-rail clips |
| Agency Approval | Not required |
| Sensor Type | 3300 NSv proximity probe system |
| Loop Output | 4 to 20 mA DC |
| Not-OK Output | Below 3.6 mA |
| Power-Up Inhibit | Approximately 2 to 3 seconds |
| Zero / Span | External, non-interacting adjustments |
| Target Material Basis | AISI 4140 steel unless otherwise calibrated |
System Integration
- Connect only the matching 3300 NSv probe and extension-cable combination.
- Check available loop voltage after accounting for the receiver and field wiring.
- Scale the PLC or DCS input to the selected transmitter range and implement separate not-OK handling.
Applications
- Longer pump or compressor sensor runs
- OEM machinery-control panels
- General-purpose vibration trending
FAQ
How does 990-05-70-01-00 differ from 990-05-50-01-00?
The total sensor-system length differs, so probe and extension-cable compatibility must be reviewed rather than transferring only the transmitter.
Can 990-05-70-01-00 be installed in a classified area?
Its approval code does not select agency approvals; choose and install equipment according to the actual area classification.
What receiver setup is needed for 990-05-70-01-00?
Use a powered two-wire analog loop with adequate voltage, acceptable resistance, correct scaling and logic for an under-range fault signal.
Why should target material be stated for 990-05-70-01-00?
Proximity-system scale depends on target electrical properties, so nonstandard materials may require manufacturer-supported calibration.
What checks confirm a healthy 990-05-70-01-00 loop?
Verify gap, buffered signal, loop endpoints, fault response, receiving-channel scaling and final alarm operation.
Which details should accompany a 990-05-70-01-00 quotation?
Provide probe and cable labels, total routing length, target, panel supply, controller input and installation environment.
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