Legacy-compatible footprint
The panel pattern matches the traditional four-hole Proximitor footprint, allowing the radiation-resistant XL sensor to occupy the established mounting area.
01
Product Overview
Bently Nevada 138492-01 is the panel-mount pad used with radiation-resistant 330280 and 330281 XL Proximitor Sensors. The pad provides the mechanical interface between the sensor base and the panel so the signal-conditioning electronics can be secured near the associated probe and extension-cable path.
Installed beneath the sensor, Bently Nevada 138492-01 follows the panel-mount footprint rather than the alternative DIN-rail arrangement. The pad positions the mounting holes and supports the sensor while its field terminals remain accessible for the negative supply, common and conditioned output conductors.
Selection of Bently Nevada 138492-01 is therefore governed by the installed Proximitor mounting method, not by probe diameter alone. The pad belongs to the panel-mounted radiation-resistant sensor assembly and does not replace the probe, extension cable or signal-conditioning electronics.
02
Technical Specifications
| Technical Item | Specification |
|---|---|
| Brand | Bently Nevada |
| Model | 138492-01 |
| Product Name | Radiation-resistant XL Proximitor panel-mount pad |
| Country | United States |
| Component category | Mounting accessory |
| Mounting method | Panel mount |
| Associated sensors | 330280 and 330281 radiation-resistant XL Proximitor Sensors |
| System relationship | Installed beneath the Proximitor Sensor base |
| Panel-mount sensor footprint | 81.3 x 61.2 mm overall |
| Mounting-hole spacing | 50.8 x 50.8 mm |
| Mounting-hole diameter | 4.0 mm through holes |
| Alternative documented mount | 138493-01 DIN-rail mounting pad |
| Electrical function | None; passive mechanical mounting component |
| Signal path | Does not alter probe, extension-cable or Proximitor electrical calibration |
03
Key Features
Bently Nevada 138492-01 gives the radiation-resistant XL Proximitor Sensor a compact, electrically isolated four-hole panel-mount base.
Integrated electrical isolation
The mounting base isolates the sensor from the panel and removes the need for a separate isolator plate.
Stable panel support
The flat four-point base supports the 330280 or 330281 sensor while keeping its probe connector and SpringLoc field terminals accessible.
04
Installation Highlights
Bently Nevada 138492-01 uses a true mounting sequence: prepare the panel first, secure the passive pad and sensor next, and dress conductors only after the base is stable.
Prepare the panel
Lay out the documented hole spacing on a flat surface and reserve clearance for the sensor connectors and terminal conductors.
Secure the pad and sensor
Fasten the pad without twisting it, then place the compatible Proximitor Sensor on the matching mounting points and tighten evenly.
Dress and inspect the wiring
Route probe, supply and output conductors after the sensor is secure; confirm that cable pull does not lift or rotate the mounted assembly.
05
Frequently Asked Questions
01How do I know whether Bently Nevada 138492-01 is the correct mounting pad?
Bently Nevada 138492-01 is the panel-mount pad for 330280 and 330281 radiation-resistant XL Proximitor Sensors. Confirm the sensor model and required panel mounting method before drilling or wiring.
02Does Bently Nevada 138492-01 change the proximity system calibration?
No. Bently Nevada 138492-01 is a passive mounting component; calibration remains determined by the matched probe, extension cable and Proximitor Sensor.
03What clearance is needed around Bently Nevada 138492-01?
Allow Bently Nevada 138492-01 enough panel space for the full sensor footprint, connector access, conductor bend radius and tool access to the mounting fasteners.
04Can Bently Nevada 138492-01 replace the DIN-rail mounting pad?
Bently Nevada 138492-01 is for panel mounting. The documented DIN-rail arrangement uses a different pad, so select by the required mounting method rather than similar appearance.
05Why should wiring be completed after Bently Nevada 138492-01 is secured?
Securing Bently Nevada 138492-01 first prevents cable pull from shifting the Proximitor Sensor and keeps terminal conductors from carrying mechanical mounting load.
06What should be checked if the sensor rocks on Bently Nevada 138492-01?
For Bently Nevada 138492-01, inspect panel flatness, hole alignment, fastener seating and the sensor base before tightening further; do not use wiring tension to hold the assembly in place.
06
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