330101-00-10-10-12-CN: The Humidity-Rated 1.0 m Configuration
This variant is specified by two characteristics that matter in environments the standard variants do not cover: a documented humidity tolerance and the CN approval designation. The humidity figure is the unusual one — less than 3% change in scale factor at 93% relative humidity per IEC 68-2-3, for up to 56 days.
That specification exists because scale factor drift under humidity is a real failure mode in coastal, offshore or humid plant installations. A probe whose scale factor moves with humidity produces vibration readings that drift with ambient conditions — which gets misdiagnosed as a changing machine condition rather than an instrument problem.
| Feature | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Brand | Bently Nevada |
| Part Number | 330101-00-10-10-12-CN |
| Probe Temperature Range (Standard) | -52°C to +177°C (-62°F to +350°F) |
| Probe Relative Humidity | Less than 3% change in ASF at 93% humidity per IEC 68-2-3 for up to 56 days |
| Probe Case Material | AISI 303 or 304 stainless steel (SST) |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Linear Range | 2 mm (80 mils) |
| Recommended Gap Setting | -9 Vdc (1.27 mm) |
| Incremental Scale Factor (Standard 5 or 1 meter) | 7.87 V/mm (200 mV/mil) ±5% |
| Nominal Probe DC Resistance (1.0 m) | 7.59 ± 0.50 Ω. |
Where This Variant Differs from the Standard 330101
Probe temperature range is -52 °C to +177 °C (-62 °F to +350 °F), tip is PPS and case is AISI 303 or 304 stainless steel, linear range 2 mm (80 mils). The differentiators against the standard variants are the documented humidity tolerance and the CN approval designation:
| 3301xx Part Number | Case / Length / Approval |
|---|---|
| 330101-00-08-05-02-00 | 3300 XL 8 mm platform — confirm case length and approval designation |
| 330101-00-08-05-02-05 | 3300 XL 8 mm platform — confirm case length and approval designation |
| 330101-00-08-05-12-CN | 3300 XL 8 mm platform — confirm case length and approval designation |
| 330101-00-08-10-01-CN | 3300 XL 8 mm platform — confirm case length and approval designation |
| 330101-00-08-10-02-00 | 3300 XL 8 mm platform — confirm case length and approval designation |
| 330101-00-08-10-02-05 | 3300 XL 8 mm platform — confirm case length and approval designation |
| 330101-00-08-10-02-CN | 3300 XL 8 mm platform — confirm case length and approval designation |
| 330101-00-08-10-11-00 | 3300 XL 8 mm platform — confirm case length and approval designation |
| 330101-00-08-10-11-CN | 3300 XL 8 mm platform — confirm case length and approval designation |
| 330101-00-08-20-02-05 | 3300 XL 8 mm platform — confirm case length and approval designation |
All Bently Nevada parts · Sensors & Instrumentation
Reading the Humidity Specification
Less than 3% change in ASF (analog scale factor) at 93% humidity per IEC 68-2-3 for up to 56 days is a bounded drift figure, not a zero figure. It tells you the probe holds calibration within a known envelope under sustained humidity — which is a different claim from saying humidity does not affect it.
Where vibration alarm limits are tight, that 3% envelope is worth carrying into the alarm margin rather than assuming the reading is unaffected.
Approval Designation in Classified Installations
The CN approval designation is part of the ordering identity, not a label. On a platform with several hundred catalogue variants, the trailing designation is what determines whether the delivered part carries the approval the installation requires — a mismatch is a compliance problem, not a fit problem.
Supply & terms: Stock status: In Stock · Condition: New · Warranty: One Year · Origin: US. Listed by AutoDCS Tech Parts Team · Last updated .
Availability & Condition at AutoDCSTech
| Part Number | 330101-00-10-10-12-CN |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
