330709-010-050-10-02-00 | Bently Nevada 1.0 m Probe

The Bently Nevada 330709-010-050-10-02-00 is a Probe for industrial control and automation applications.

When a turbine shaft exhibits vibration, the root cause often hides in the gap between probe and target. The Bently Nevada 330709-010-050-10-02-00 solves this by delivering precise, repeatable displacement measurements in a 3300 XL 11 mm proximity probe package. This model features a 1.0 metre (3.3 feet) total length and a miniature coaxial ClickLoc connector.

What Is the 330709-010-050-10-02-00?

Manufactured by Bently Nevada, this probe belongs to the 3300 XL 11 mm series. It carries an M16 x 1.5 thread and an unthreaded length of 10 mm, with an overall case length of 50 mm. The probe tip uses polyphenylene sulfide (PPS), while the case is AISI 304 stainless steel. Agency approval option 00 means no specific approval is required for this configuration.

Key Specifications and Practical Meaning

• Probe dc resistance: 5.9 ± 0.5 ohms from center conductor to outer conductor at 1.0 m length. This tight tolerance supports consistent signal integrity.
• Probe case torque: Maximum rated 63.3 N•m (560 in•lb); recommended 21.1 N•m (187 in•lb) for M16x1.5 cases. Proper torque prevents thread damage and maintains sensor position.
• Minimum bend radius: 25.4 mm (1.0 in) with or without SST armor. This guides cable routing in tight machine housings.
• Temperature range: Operating and storage from -52°C to +177°C (-62°F to +351°F). Note that exposure below -34°C (30°F) may cause premature pressure seal failure.

How Does This unit Support Reliability Programs?

Condition monitoring teams rely on accurate gap voltage to detect misalignment, unbalance, and bearing wear. The 75 Ω triaxial FEP-insulated cable resists electrical noise, while cross-talk limitations specify a minimum target diameter of 30.5 mm (1.2 in) for flat surfaces and 152 mm (6.0 in) for shafts. These figures help engineers validate installation geometry before commissioning. For rotating machinery such as compressors and motors, the probe’s pressure seal (Viton O-ring) protects against differential pressure between tip and case, though probes are not pressure tested prior to shipment.

Installation and Maintenance Essentials

Mount the probe using the M16x1.5 thread, observing the maximum thread engagement of 24 mm. Finger-tighten the ClickLoc connector to a maximum of 0.565 N•m (5 in•lb). Route the cable with at least a 25.4 mm (1.0 in) bend radius to avoid damage. Periodically inspect the probe tip and cable for wear, and verify gap voltage against baseline readings. For genuine Bently Nevada original spare parts, TenBN authorized distributor offers global shipping and competitive pricing for industrial MRO.

FAQ

What is the total length of This unit?

The Bently Nevada unit has a total length of 1.0 metre (3.3 feet), as indicated by option code 10.

What connector type does this probe use?

This probe uses a miniature coaxial ClickLoc connector, specified by option code 02.

What is the recommended torque for the probe case?

For M16x1.5 probe cases, the recommended torque is 21.1 N•m (187 in•lb), with a maximum rated torque of 63.3 N•m (560 in•lb).

Does This unit come with agency approval?

No, agency approval option 00 indicates that approval is not required for this configuration.