Product Introduction
The 330907-05-30-70-02-05 is a 3300 NSv reverse mount probe from Bently Nevada. This transducer measures radial vibration and position on rotating machinery. Specifically, its side-view characteristics simplify gapping compared with older 3000-series probes. Therefore, engineers prefer it for process compressors, turbines, and pumps where chemical resistance and reliability matter.
Technical Specifications
This probe uses M10X1 threads and provides a total length of 7.0 meters (23.0 feet). The connector option is a miniature coaxial ClickLoc connector with standard cable. Additionally, the agency approval option covers multiple approvals for global installations.
The probe dc resistance from center conductor to outer conductor measures 5.9 ± 0.9 ohms at 7.0 meters. The linear range spans 1.5 mm (60 mils), starting about 0.25 mm (10 mils) from the target and running to 1.75 mm (70 mils), roughly -1 to -13 Vdc. Moreover, the recommended gap setting is 1.0 mm (40 mils).
Field wiring accepts 0.2 to 1.5 mm² (16 to 24 AWG) conductors, or 0.25 to 0.75 mm² with ferrules. Bently Nevada recommends three-conductor shielded triad cable with a maximum length of 305 meters (1,000 feet) between the 3300 XL NSv Proximitor Sensor and the monitor.
Mechanical and Environmental Parameters
The probe tip uses polyphenylene sulfide (PPS), while the probe case uses AISI 304 stainless steel. The maximum thread engagement for M10X1 threads is 15 mm. For reverse mount probes, the maximum case torque is 22.6 N·m (200 in·lb), and the recommended torque is 7.5 N·m (66 in·lb).
The 330907-05-30-70-02-05 operates from -52°C to +177°C (-62°F to +351°F), and the storage range matches. However, sustained exposure below -34°C (-30°F) may cause premature failure of the pressure seal. The probe seals differential pressure between tip and case with a Viton O-ring. Typical probe weight ranges from 14 to 150 g.
Installation Guide
First, confirm the machine port accepts M10X1 reverse mount threads. Next, set the gap to 1.0 mm (40 mils) using the side-view target. Then, tighten the probe case to 7.5 N·m (66 in·lb) recommended torque. After that, route the standard cable through protected conduit and secure the ClickLoc connector until it locks. Finally, connect the triad cable to the Proximitor Sensor and verify voltage before startup.
Packaging List
330907-05-30-70-02-05 3300 NSv reverse mount probe (1 unit)
7.0 m standard cable with ClickLoc connector (pre-attached)
Viton O-ring (pre-installed)
Protective shipping carton
FAQ
Q1: What thread size does this probe use?
A: The 330907-05-30-70-02-05 uses M10X1 reverse mount threads with a 15 mm maximum engagement.
Q2: What is the recommended gap setting?
A: Set the gap to 1.0 mm (40 mils) for optimal linear range performance.
Q3: How long is the probe cable?
A: This probe includes a 7.0-meter (23.0-foot) standard cable with a miniature coaxial ClickLoc connector.
Q4: What is the operating temperature range?
A: The probe operates from -52°C to +177°C, though sustained exposure below -34°C may damage the pressure seal.
Q5: What shipping methods do you offer?
A: We ship via Fedex, UPS, and DHL. Orders usually dispatch within 3 to 5 business days after payment confirmation.
