The 330907-05-30-10-12-CN belongs to the 3300 NSv series from Bently Nevada. Manufacturers use this reverse mount probe in harsh process compressor environments. It has better chemical resistance than the older 3300 RAM probe. Additionally, its side-view characteristics allow more accurate gapping at the same target distance.
This model comes with an M10x1 thread and a total length of 1.0 meter (39 inches). The connector option 12 means a miniature coaxial ClickLoc connector with FluidLoc cable. Users appreciate the ClickLoc locking mechanism because it prevents loosening over time. Furthermore, the patented TipLoc molding method creates a strong bond between the probe tip and body.
The agency approval option CN indicates this unit meets country-specific requirements for China.
The 330907-05-30-10-12-CN probe offers a linear range of 1.5 mm (60 mils). This range starts at approximately 0.25 mm (10 mils) from the target. It extends from 0.25 to 1.75 mm (10 to 70 mils), which equals about -1 to -13 Vdc. The recommended gap setting is 1.0 mm (40 mils).
Probe DC resistance from the center conductor to the outer conductor is 4.2 ± 0.5 ohms for the 1.0 meter length. For field wiring, use 0.2 to 1.5 mm² (16 to 24 AWG) cable. With ferrules, the recommended size is 0.25 to 0.75 mm² (18 to 23 AWG). Bently Nevada suggests using a three-conductor shielded triad cable. The maximum length between the 3300 XL NSv Proximitor Sensor and the monitor is 305 meters (1,000 feet).
The probe tip material is polyphenylene sulfide (PPS). The probe case uses AISI 304 stainless steel (SST). For reverse mount probes, the maximum rated torque is 22.6 N•m (200 in•lb). However, the recommended torque is only 7.5 N•m (66 in•lb).
The operating temperature ranges from -52°C to +177°C (-62°F to +351°F). Storage temperature is the same. Nevertheless, exposing the probe to temperatures below -34°C (-30°F) for a sustained period may cause premature failure of the pressure seal.
The 330907-05-30-10-12-CN probe seals differential pressure between the probe tip and case. A Viton O-ring provides this sealing capability. The maximum length of thread engagement for the M10x1 thread is 15 mm. System weight ranges from approximately 14 to 150 g (0.5 to 5.3 oz).
First, ensure the target surface is clean and within the recommended gap of 1.0 mm (40 mils). Next, apply the recommended torque of 7.5 N•m (66 in•lb) when installing the reverse mount probe. Do not exceed 22.6 N•m (200 in•lb) to avoid damage.
Then, connect the miniature coaxial ClickLoc connector. You will hear it lock into place, which prevents the connection from loosening. For field wiring, use a three-conductor shielded triad cable. Specifically, keep the total cable length under 305 meters (1,000 feet) to maintain signal integrity.
Finally, verify the DC resistance between the center and outer conductors. The measured value should be 4.2 ± 0.5 ohms for the 1.0 meter probe length.
One 330907-05-30-10-12-CN 3300 NSv reverse mount probe
One ClickLoc connector (pre-attached)
One FluidLoc cable assembly
Installation instruction sheet
1. Can I use the 330907-05-30-10-12-CN probe in a process compressor?
Yes, absolutely. This probe has increased chemical resistance compared to the 3300 RAM probe. Therefore, it works well in many process compressor applications.
2. What is the difference between the NSv probe and the 3000-series 190 probe?
The 3300 NSv probe offers superior side-view characteristics when gapped at the same distance from the target. Additionally, it has better chemical resistance.
3. What does the CN agency approval mean for this model?
The CN option indicates country-specific approval for China. This variant meets local regulatory requirements for that market.
4. What torque should I apply when installing this reverse mount probe?
The recommended torque is 7.5 N•m (66 in•lb). Do not exceed the maximum rated torque of 22.6 N•m (200 in•lb).
5. How do you ship the Bently Nevada 330907-05-30-10-12-CN probe?
We ship using FedEx, UPS, or DHL. Delivery times depend on your location and the selected shipping method.
| Brand Name | Bently Nevada |
| Model No. | 330907-05-30-10-12-CN |
| Product Type | Reverse Mount Probe |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
