Description
Bently Nevada 330709-010-120-10-02-00
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 330709-010-120-10-02-00 |
| Thread Type | M16 x 1.5 |
| Armor Option | Without armor |
| Unthreaded Length | 10 mm |
| Overall Case Length | 120 mm |
| Total Cable Length | 1.0 meter (3.3 feet) |
| Connector Type | Miniature coaxial ClickLoc connector, standard cable |
| Agency Approval | Not required |
| Probe Tip Diameter | 11 mm |
| Sensitivity | 3.94 V/mm (100 mV/mil) ±10% |
| Linear Range | 4.0 mm (160 mils) |
| Frequency Response | 0 to 8 kHz |
| Temperature Range | -52°C to +177°C (-62°F to +351°F) |
| Weight | Approximately 200 g |
Functional Features The 120 mm case length is one of the longest standard configurations available in the 3300 XL 11 mm metric probe series. The 10 mm unthreaded length ensures the sensing element is properly positioned beyond the mounting thread. The probe features the same TipLoc and CableLoc patented designs as all 3300 XL probes. The M16 x 1.5 thread provides robust mounting strength for heavy industrial applications.
Application Scenarios Large steam turbine casing penetration monitoring, heavy-duty gas turbine axial position measurement, large industrial fan bearing housing monitoring, thick-walled pump housing vibration measurement, nuclear power plant rotating equipment monitoring, large marine propulsion shaft monitoring, steel mill rolling mill equipment.
Performance Parameters The probe delivers 3.94 V/mm sensitivity with linearity within ±0.10 mm over the standard 4.0 mm range. The extended case length adds approximately 1.1 g per mm to the probe weight. The DC resistance remains 5.9 ± 0.5 Ω for the 1.0 meter cable. The system is fully API 670 compliant when used with matching 3300 XL components.
Material Composition Probe tip is polyphenylene sulfide (PPS). Probe case is AISI 304 stainless steel. Cable is 75 Ω triaxial with FEP insulation. Connector is gold-plated brass. The pressure seal uses a Viton O-ring.
Structural Characteristics The probe features M16 x 1.5 metric thread with a 24 mm lock nut and 14 mm wrench flats. The 120 mm case provides extensive thread engagement for deep mounting. The 10 mm unthreaded length positions the probe shoulder at the correct distance from the mounting surface. The non-armored construction keeps the probe lightweight despite the long case. The cable has a 3.7 mm maximum outside diameter.
Working Principle The probe generates a high-frequency electromagnetic field at the 11 mm diameter probe tip. Eddy currents induced in the target surface modify the RF field characteristics. The Proximitor Sensor measures these modifications and outputs a DC voltage proportional to the gap distance. The extended case length does not affect the electrical performance or sensitivity of the sensing element.
Installation Requirements Install through a deep M16 x 1.5 threaded hole with adequate depth for the 120 mm case. The recommended torque is 11.2 N·m (100 in·lbf). Ensure the 10 mm unthreaded portion is correctly positioned relative to the mounting surface. Use a 1.0 meter 3300 XL 11 mm Proximitor Sensor. Verify the gap voltage at installation to confirm proper positioning at the 2.5 mm recommended gap.
