Product Introduction
When unexpected machine downtime halts production, reliable vibration monitoring is critical. The Bently Nevada 330709-000-030-90-02-00 3300 XL 11 mm Proximity Probe delivers precise shaft displacement and vibration measurements for critical rotating machinery. This probe is designed as a direct replacement for older 3300 series probes, offering improved performance and rugged construction in a compact M16x1.5 threaded package.
Technical Specifications
The Bently Nevada 330709-000-030-90-02-00 provides the following key parameters:
| Parameter |
Value |
| Probe Type |
3300 XL 11 mm, M16 x 1.5 thread, without armor |
| Unthreaded Length |
0 mm |
| Overall Case Length |
30 mm |
| Total Length |
9.0 meters (29.5 feet) |
| Connector & Cable Type |
Miniature coaxial ClickLoc connector, standard cable |
| Probe DC Resistance (RPROBE) |
8.5 ± 1.1 ohms (Center to Outer conductor at 9.0 m) |
| Cross-talk: Min. Target Size |
30.5 mm (1.2 in) diameter |
| Cross-talk: Min. Shaft Diameter |
152 mm (6.0 in) |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel (SST) |
| Probe Cable Specification |
75 Ω triaxial, FEP insulated, 9.0 m total length |
| Probe Case Torque (M16x1.5) |
Recommended 21.1 N·m (187 in·lb) |
| Connector-to-connector Torque |
Finger tight (max 0.565 N·m / 5 in·lb) |
| Minimum Bend Radius |
25.4 mm (1.0 in) |
| Max Thread Engagement |
24 mm |
| Operating & Storage Temperature |
-52°C to +177°C (-62°F to +351°F) |
Industry Applications
The Bently Nevada 330709-000-030-90-02-00 3300 XL 11 mm Proximity Probe is ideal for upgrading legacy vibration monitoring systems in steam turbines, centrifugal compressors, pumps, and large electric motors. Its 9-meter cable length suits installations where the probe must be located remotely from the monitor, and the rugged stainless steel case withstands harsh environments. Use this probe to reduce false alarms and improve machine protection accuracy.
Installation & Setup Guidance
Proper installation ensures reliable readings. For the Bently Nevada 330709-000-030-90-02-00, observe these guidelines:
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Thread Type: M16x1.5 – use a matching threaded hole or adapter.
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Torque: Apply 21.1 N·m (187 in·lb) to the probe case; do not exceed 63.3 N·m (560 in·lb).
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Connector: Tighten the ClickLoc connector finger-tight only; over-torquing (max 0.565 N·m) can damage the miniature coaxial connector.
-
Cable Routing: Maintain a minimum bend radius of 25.4 mm (1.0 in) to prevent cable stress.
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Temperature: Avoid exposures below -34°C (-30°F) to preserve the pressure seal integrity.
Maintenance & Reliability
The Bently Nevada 330709-000-030-90-02-00 is designed for long service life with minimal maintenance. Periodic inspection of the cable for cuts or kinks and verification of the connector tightness will sustain accuracy. The probe operates reliably across a wide temperature range (-52°C to +177°C) and is compatible with flameproof equipment per the temperature schedule (see Parameters for details). Regular calibration checks against a known target are recommended for critical applications.
Selection Guide & Purchasing Advice
Before ordering the Bently Nevada 330709-000-030-90-02-00, verify your system requires an 11 mm probe with M16x1.5 thread and 9-meter cable. This model does not include SST armor; if additional cable protection is needed, consider other 3300 XL variants. For expert application assistance, contact UBEST Automation (ubest101) – your trusted source for genuine Bently Nevada spares and industrial automation parts.