3300 XL 11 mm Proximity Probe - Bently Nevada 330701
Product Introduction
The Bently Nevada 330701-00-15-10-02-05 is a high-performance 3300 XL series proximity probe designed for critical shaft monitoring. This 3300 XL 11 mm Proximity Probe provides precise, non-contact measurement of vibration and position in turbines, compressors, and pumps. Its rugged construction ensures stable operation across wide temperature ranges. Additionally, its compact case length simplifies installation in space-constrained machinery.
This model uses a 1/2-20 UNF thread and offers a 1.5-inch overall case length. The Bently Nevada 330701 probe comes with a 1.0-metre total length and a standard Miniature coaxial ClickLoc connector. Moreover, its PPS tip and 304 SST case deliver excellent chemical and corrosion resistance. Therefore, this sensor is a dependable choice for both retrofit and new installations.
Technical Specifications
The 330701-00-15-10-02-05 includes a probe tip manufactured from Polyphenylene sulfide (PPS), which provides superior wear resistance. Furthermore, its AISI 304 stainless steel (SST) case withstands corrosive industrial atmospheres. The integral 75 Ω triaxial cable uses FEP insulation for reliable signal transmission over extended distances.
Specifically, the DC resistance from the center conductor to the outer conductor (RPROBE) is 5.9 ± 0.5 ohms for this 1.0-metre model. Meanwhile, the operating and storage temperature range spans -51°C to +177°C (-60°F to +351°F). The probe also features a Viton O-ring to seal differential pressure between tip and case. Consequently, this design prevents process media from affecting internal components.
Mechanical and Environmental Parameters
The Bently Nevada 330701 probe is equipped with a 1/2-20 UNF thread with a maximum engagement length of 0.750 inches. Its recommended installation torque is 15.2 N•m (133 in•lb), while the maximum rated torque is 45.2 N•m (400 in•lb). For the ClickLoc connector, finger-tight is the recommended torque, with an absolute maximum of 0.565 N•m (5 in•lb).
Additionally, the minimum bend radius for the probe cable is 25.4 mm (1.0 inch), regardless of armor. This flexibility aids cable routing in tight machinery spaces. However, note that exposing the probe below -34°C (30°F) can shorten the pressure seal's lifespan. Therefore, always verify your environmental conditions against these limits.
The unit's light weight of 0.17 kg makes handling and installation effortless. Its 1.5-inch case length is shorter than many alternatives, offering more mounting flexibility. For high-vibration zones, ensure the mounting hole is clean and properly threaded.
Installation Guidelines
First, inspect the mounting hole to confirm it matches the 1/2-20 UNF thread specification. Clean any debris or oil from the threads before installation. Next, thread the 330701-00-15-10-02-05 carefully into the hole by hand to avoid cross-threading. Then, tighten it to the recommended torque of 15.2 N•m using a calibrated wrench.
After securing the probe, connect the Miniature coaxial ClickLoc connector to the extension cable. Finger-tighten the connection, then apply no more than 0.565 N•m of torque. Afterwards, route the cable while maintaining a bend radius larger than 25.4 mm. Finally, power up the system and verify the gap voltage is within the expected range.
For best results, avoid routing the cable alongside high-voltage power lines. Use cable ties to secure the cable at regular intervals. Additionally, consider using a connector protector if the environment is dusty or wet. Following these steps ensures accurate and stable measurements from your Bently Nevada 330701 probe.
Packaging List
Bently Nevada 330701-00-15-10-02-05 Proximity Probe (1 unit)
Miniature coaxial ClickLoc connector (pre-attached)
Standard triaxial cable, 1.0 metre (integral)
Quick-start installation guide
Protective ESD-safe packaging bag
Shipping: FedEx, UPS, DHL
Frequently Asked Questions
Q1: What does the "15" option in the model number indicate?
A: The "15" stands for a 1.5-inch overall case length, making this 3300 XL 11 mm Proximity Probe more compact than the 2.5-inch version.
Q2: Is this probe compatible with existing 3300 XL extension cables?
A: Yes, the Bently Nevada 330701-00-15-10-02-05 uses a standard Miniature coaxial ClickLoc connector, which mates with all 3300 XL series extension cables.
Q3: Can I use this probe in a high-pressure steam turbine application?
A: It seals differential pressure with a Viton O-ring, but it is not pressure-tested before shipment. For critical pressure applications, contact Bently Nevada for custom testing services.
Q4: What is the difference between the "02" and "11" cable options?
A: The "02" option denotes standard cable, while "11" includes FluidLoc cable and a connector protector. This model uses standard cable for general-purpose use.
Q5: How do I check if the probe is installed at the correct gap?
A: Use a proximity probe driver and a voltmeter to measure the output voltage. Adjust the probe position until the voltage matches the recommended gap setting for your application.