راهنمای جامع فایروالهای صنعتی و تقسیمبندی شبکه OT
فایروالهای صنعتی نقش حیاتی در امنیت سایبری OT ایفا میکنند و از شبکههای PLC، DCS و SCADA از طریق بخشبندی، کنترل ورود/خروج و ادغام IDS/IPS مطابق با اصول IEC 62443 محافظت میکنند.



The Bently Nevada 330104-00-04-10-02-01 is a high-reliability 3300 XL 8 mm Proximity Probe equipped with an M10 x 1 metric thread and integrated stainless steel armor. As a fundamental component of the 3300 XL series eddy current proximity transducer system, it delivers an output voltage directly proportional to the static and dynamic distance between the probe tip and an observed conductive target surface. The physical design features a robust polyphenylene sulfide plastic tip combined with an AISI 303 or 304 stainless steel case, engineered specifically for critical vibration and position monitoring on fluid-film bearing machinery, speed sensing, and Keyphasor phase reference measurements.
| Model Code Segment | Selected Option Value | Technical Meaning & Specification |
|---|---|---|
| 330104 | Base Model | 3300 XL 8 mm Proximity Probe, M10 x 1 thread, with protective armor |
| -00 | Unthreaded Length | 0.0 mm unthreaded length configuration |
| -04 | Overall Case Length | 40 mm overall case length configuration |
| -10 | Total Length | 1.0 meter (3.3 feet) total probe system length |
| -02 | Connector Type | Miniature coaxial ClickLoc connector, standard triaxial FEP cable |
| -01 | Agency Approval | Multiple Hazardous Area Approvals (ATEX, CSA, IECEx) |
| Parameter | Value / Specification |
|---|---|
| Manufacturer | Bently Nevada (Baker Hughes) |
| Country of Origin | United States |
| Linear Range | 2 mm (80 mils), beginning at 0.25 mm (10 mils) from target |
| Incremental Scale Factor (ISF) | 7.87 V/mm (200 mV/mil) nominal |
| Recommended Gap Setting | 1.27 mm (50 mils) |
| Nominal DC Resistance (RPROBE) | 7.59 ohms plus or minus 0.50 ohms for 1.0 meter option |
| Frequency Response | 0 to 10 kHz: +0, -3 dB down with up to 305 meters of field wiring |
| Operating Temperature Range | -51 degC to +177 degC (-60 degF to +351 degF) |
| Storage Temperature Range | -51 degC to +105 degC (-60 degF to +221 degF) |
| Relative Humidity Resistance | Less than 3% change in Average Scale Factor when tested in 93% humidity up to 56 days |
| Tip Material | Polyphenylene sulfide (PPS) |
| Case Material | AISI 303 or 304 stainless steel (SST) |
| Armor Composition | Flexible AISI 302 or 304 SST with FEP outer jacket |
| Cable Specifications | 75 ohm triaxial, fluoroethylene propylene (FEP) insulation |
| Connector Pull Strength | 330 N (75 lbf) probe case to probe lead; 270 N (60 lbf) at link to extension cable |
| Maximum Probe Case Torque | 22.6 N-m (200 in-lbf) |
| Minimum Cable Bend Radius | 25.4 mm (1.0 inch) |
| Shipping Weight (Calculated) | 0.38 kg (0.84 lbs) |
| Package Dimensions (Calculated) | 200 mm x 150 mm x 50 mm |
Before beginning any installation, verification, or probe adjustments, ensure the machine train has been brought to a complete mechanical standstill and all associated machinery monitoring control networks are fully bypassed. De-energize all connected electrical power lines and verify that the target area matches the certified classification mapping to guarantee absolute local safety compliance.
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