330703-000-040-10-02-00 Bently Nevada 11mm Probe

Bently Nevada 330703-000-040-10-02-00 3300 XL 11mm Proximity Probe

Bently Nevada 330703-000-040-10-02-00 3300 XL 11mm Proximity Probe

Availability: 10 left in stock

The Bently Nevada 330703-000-040-10-02-00, also cataloged as the 330703 Proximity Probe, operates as a dedicated hardware component for physical displacement...

SKU: 330703-000-040-10-02-00

Manufacturer: Bently Nevada
Product No.: 330703-000-040-10-02-00
Product Type: Proximity Sensors
Product Origin: USA
Payment:T/T, Western Union
Weight: 1500g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

The Bently Nevada 330703-000-040-10-02-00, also cataloged as the 330703 Proximity Probe, operates as a dedicated hardware component for physical displacement measurement within 3300 XL transducer networks.

Suffix Breakdown & Model Matrix

The part number 330703-000-040-10-02-00 designates specific physical properties based on the Bently Nevada ordering matrix:

330703: Base model for 3300 XL 11 mm Proximity Probe (with 1/2-20 UNF thread).
000: Unthreaded length option designating 0 mm.
040: Overall case length option designating 40.0 mm.
10: Total length option specifying 1.0 meter (3.3 feet).
02: Connector and cable type option specifying miniature coaxial ClickLoc connector, standard cable.
00: Agency approval option specifying no hazardous area approvals are required.

Hardware Specifications

Parameter	Specification
Model	330703-000-040-10-02-00
Brand	Bently Nevada
Origin	USA
Probe Tip Diameter	11.0 mm
Thread Type	1/2-20 UNF thread
Unthreaded Length	0 mm
Overall Case Length	40.0 mm
Total Probe Length	1.0 meter (3.3 feet)
Cable Type	Standard coaxial (unarmored)
Connector Type	Miniature coaxial ClickLoc
Agency Approval	None (Option 00)
Operating Temp	-51 to +177 deg C
Physical Weight	0.350 kg
Shipping Weight	1.50 kg
Power Consumption	Passive transducer sensor (0 W)

Eddy-Current Probe Scaling & Gap Voltage Validation

This 11 mm probe operates via eddy-current physics to generate a localized radio frequency (RF) field at the sensor tip. To maintain proper eddy-current probe scaling of 3.94 V/mm (100 mV/mil) typically associated with the 11 mm series, this 1.0-meter probe must connect to its matched 3300 XL 11 mm Proximitor sensor through a compatible extension cable, establishing a completed 5.0-meter or 9.0-meter electrical loop. Mechanical adjustment during installation is required to validate the gap voltage, targeting a baseline reading of -10 VDC at the physical center of the linear calibration range. This voltage stabilization enables the monitor rack to track dynamic rotor dynamics and shaft displacement while minimizing signal cross-talk suppression between adjacent probe assemblies.

Frequently Asked Questions

Q: Why does the 11 mm probe have a different scaling factor compared to the standard 8 mm probe?

A: The larger 11.0 mm tip diameter generates a wider RF field, allowing for a broader linear range (typically 4.0 mm or 160 mils) than the 8 mm probe. Consequently, the linear scale factor decreases to 3.94 V/mm (100 mV/mil) to cover the wider physical gap range.

Q: Can standard 8 mm cables and Proximitors be used with this 11 mm probe?

A: No. The 11 mm probe has distinct physical and electrical properties. Using it with 8 mm Proximitors or mismatched extension cables will compromise the system impedance, leading to massive calibration errors and incorrect vibration readings.

Field Installation Guidelines

Mounting and Torque: Thread the probe into the mounting sleeve. Do not exceed a tightening torque of 22.6 N-m (200 in-lb) for the 1/2-20 UNF threads to prevent damaging the internal components.
Adjusting the Gap Voltage: Slowly rotate the probe toward the shaft target while monitoring the Proximitor sensor output voltage. Secure the probe locknut when the voltage matches the target offset of -10.0 VDC.
Connector Insulation: Keep the coaxial ClickLoc terminal dry and clean during connection. Ensure the integrated connector protector covers the interface completely to isolate the shield from the machine ground casing.

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Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

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