Bently Nevada 330902-00-10-10-02-05 Proximity Probe
This 330902-00-10-10-02-05 proximity probe belongs to the 3300 NSv transducer family from Bently Nevada. It measures shaft vibration and position in rotating machinery protection systems. The probe carries a 1/4-28 UNF thread and a 1.0-metre (39 in) armored cable.
Key Technical Specifications
The probe uses 75 Ω coaxial construction with fluoroethylene propylene (FEP) insulation. Its DC resistance from center conductor to outer conductor (RPROBE) is 4.2 ± 0.5 ohms at 1.0 metre length. Additionally, the miniature coaxial ClickLoc connector ensures a secure, locking interface with extension cables.
Furthermore, the probe case material is AISI 304 stainless steel (SST), while the probe tip uses polyphenylene sulfide (PPS). This combination delivers durability and stable electrical performance in industrial environments.
Mechanical and Environmental Parameters
The 330902-00-10-10-02-05 operates within a temperature range of -52°C to +177°C (-62°F to +351°F) for both operating and storage conditions. However, exposing the probe to temperatures below -34°C (-30°F) for sustained periods may cause premature failure of the pressure seal.
Moreover, the maximum rated case torque is 7.3 N·m (65 in·lb), with a recommended torque of 5.1 N·m (45 in·lb) for 1/4-28 or M8×1 probe cases. The maximum thread engagement length is 0.375 in for the 1/4-28 thread.
The probe seals differential pressure between tip and case using a Viton O-ring. Note that probes are not pressure tested before shipment. Probe weight ranges from approximately 14 to 150 g (0.5 to 5.3 oz).
Installation Guidelines
First, verify that the probe length plus the extension cable length equals the Proximitor Sensor total length. This matching requirement preserves calibration accuracy across the measurement loop.
Next, mount the probe using the 1/4-28 UNF thread and observe the maximum thread engagement of 0.375 in. Apply the recommended torque of 5.1 N·m (45 in·lb) and never exceed the maximum of 7.3 N·m (65 in·lb).
Additionally, route the armored cable away from excessive heat and mechanical stress. Secure it with suitable clamps to prevent vibration-induced wear. Connect the miniature coaxial ClickLoc connector firmly to the extension cable.
Finally, confirm the temperature classification for your hazardous area. For EPL Ga and Gc applications, the T2 rating permits ambient temperatures from -55°C to +177°C. Always follow local installation codes.
Packaging List
FAQ
Q1: What thread size does the 330902-00-10-10-02-05 use?
A: The 330902-00-10-10-02-05 features a 1/4-28 UNF thread with a maximum engagement length of 0.375 in.
Q2: What is the total cable length of this probe?
A: This probe offers a 1.0-metre (39 in) total length, indicated by the 10 option code in the model number.
Q3: What connector type does this probe include?
A: Option code 02 specifies a miniature coaxial ClickLoc connector with standard cable for secure, locking connections.
Q4: What is the maximum rated torque for this probe case?
A: The maximum rated torque is 7.3 N·m (65 in·lb), while the recommended torque is 5.1 N·m (45 in·lb).
Q5: Can this probe operate in hazardous areas?
A: Yes, option code 05 provides Multiple Approvals. The T2 classification permits ambient temperatures from -55°C to +177°C for EPL Ga and Gc applications.
