The Bently Nevada 330106-05-30-90-12-CN belongs to the trusted 3300 XL series. This reverse mount probe measures 8 mm in diameter. Many engineers choose it for vibration and position monitoring on rotating machinery. For example, you can install it on turbines, compressors, and pumps. Additionally, the probe provides accurate readings in tight installation spaces.
The total length option reaches 9.0 meters (29.5 feet). This extended length allows flexible routing to your monitoring rack. Furthermore, the model includes a Miniature ClickLoc coaxial connector with the FluidLoc cable option -12. However, the FluidLoc feature is not necessary for most installations because the probe sleeve already offers sealing. Therefore, carefully evaluate your application before ordering this specific cable option.
The agency approval option CN means the probe meets country-specific standards. Moreover, the probe tip uses Polyphenylene sulfide (PPS) material. The probe case is machined from AISI 303 or 304 stainless steel (SST). These materials provide excellent resistance to corrosion and wear.
Electrical Characteristics
The nominal DC resistance (RPROBE) measures from the center conductor to the outer conductor. For this 9.0-meter probe, RPROBE equals 9.87 ± 0.50 Ω. This stable resistance ensures consistent signal transmission. Additionally, the probe cable uses a 75Ω triaxial design. The standard insulation is fluoroethylene propylene (FEP). For extended temperature ranges, you can order perfluoroalkoxy (PFA) insulation.
Mechanical Dimensions
The probe case thread is M10x1 with a maximum thread engagement of 15 mm. This thread size fits many standard mounting holes. Furthermore, the probe weight is 323 g per meter (11.4 oz per meter). The total weight for this 9.0-meter probe is approximately 2.9 kg. The connector uses gold-plated brass or beryllium copper for reliable conductivity.
Optional Armor
You can also order flexible armor made of AISI 302 or 304 SST with an FEP outer jacket. The armor protects the cable in abrasive or high-friction environments. However, this specific model 330106-05-30-90-12-CN does not include armor unless specified separately.
Temperature Ranges
The standard probe operates from -52°C to +177°C (-62°F to +350°F). For high-temperature applications, an extended range probe tip reaches +218°C (+425°F). Its cable and connector then handle up to +260°C (+500°F). Nevertheless, exposing the probe to temperatures below –34˚C (–30˚F) may cause premature failure of the pressure seal. Therefore, keep the probe within these limits during storage and operation.
Pressure and Sealing
The 3300 XL 8 mm probe seals differential pressure between the tip and case. A Viton® O-ring provides this sealing. However, Bently Nevada does not pressure-test each probe before shipment. If your application requires a tested pressure seal, contact the custom design department directly.
Humidity Performance
The probe shows less than a 3% change in the Average Scale Factor (ASF). This test follows IEC standard 68-2-3 at 93% humidity for up to 56 days. Thus, the probe maintains accuracy even in very humid environments.
Tensile Strength
The maximum rated tensile strength is 330 N (75 lbf) from the probe case to the probe lead. Additionally, the connection between the probe lead and extension cable handles 270 N (60 lbf). These ratings ensure the probe withstands normal installation and operational stresses.
First, verify that your mounting hole has M10x1 threads. Next, check the thread engagement depth. It should not exceed 15 mm to avoid damaging the probe. Meanwhile, clean the mounting surface thoroughly. Any debris can affect the probe’s sealing performance.
Then, gently thread the 330106-05-30-90-12-CN into the hole by hand. Do not use tools on the probe case directly. Overtightening may strip the threads or damage the internal components. After hand-tightening, use a torque wrench only on the hex section. The recommended torque is 1.4 to 2.2 Nm (12 to 20 in-lb).
Finally, connect the Miniature ClickLoc connector to your extension cable. Ensure the connector clicks firmly into place. A loose connection can cause signal noise or intermittent readings. For optimal performance, route the cable away from high-voltage lines and heat sources.
Bently Nevada 330106-05-30-90-12-CN probe assembly (9.0 meters total length)
Miniature ClickLoc coaxial connector (pre-installed)
FluidLoc cable option -12 (included as ordered)
Installation instruction sheet (printed)
Note: No calibration certificate or warranty documents are included in this package.
We ship all orders via FedEx, UPS, or DHL. Delivery times depend on your location. Most regions receive the probe within 3–7 business days.
1. Can I use the FluidLoc cable option -12 in all installations?
No, the FluidLoc option is not necessary for most 330106-05-30-90-12-CN installations. The probe sleeve already provides adequate sealing. Only order it if your application involves high moisture or chemical exposure.
2. Does this probe work with existing 3300 XL extension cables?
Yes, the Bently Nevada 330106-05-30-90-12-CN uses a standard Miniature ClickLoc connector. It mates directly with all 3300 XL series extension cables. However, verify that your extension cable has the same impedance (75Ω).
3. What happens if the probe tip sees temperatures below -34°C?
Exposure below -34°C (-30°F) may damage the internal pressure seal. This damage can cause premature failure. Therefore, always keep the probe within its rated operating temperature range.
4. Is the probe pressure-tested before shipment?
No, standard probes are not pressure-tested prior to shipment. If your application requires a validated pressure seal, contact Bently Nevada’s custom design department for a special test.
5. How do I clean the probe tip before installation?
Use a soft, lint-free cloth with isopropyl alcohol. Gently wipe the PPS tip and the stainless steel case. Avoid abrasive materials. Also, never submerge the probe in cleaning solvents.
| Brand Name | Bently Nevada |
| Model No. | 330106-05-30-90-12-CN |
| Product Type | Reverse Mount Probe |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
