Derivative Action in PID Control Without Noise Problems
Learn what derivative action contributes to a PID loop, why it can amplify measurement noise and setpoint changes, and how filtering, sampling, and staged tests make D tuning safer.
Manufacturer: Bently Nevada
Product No.: 330101-00-34-10-02-CN
Country of origin:United States
Product Type: 3300 XL 8 mm Proximity Probe
Payment: T/T, Western Union
Weight: 320g
Shipping port: Xiamen
Warranty: 12 months
The 330101-00-34-10-02-CN is a high-performance eddy current sensor from the Bently Nevada 3300 XL series. This 8 mm proximity probe is engineered for non-contacting displacement measurements, specifically monitoring shaft vibration and axial position in critical rotating machinery.
This model features a 3/8-24 UNF thread and is supplied without armor, making it ideal for installations where the cable is routed through dedicated protective conduits or internal machine galleries. The CN approval ensures compliance with specific regional safety and hazardous area standards for the Chinese market.
| Code | Option Type | Technical Specification |
| 330101 | Base Model | 3300 XL 8 mm Probe, 3/8-24 UNF thread, without armor |
| -00 | Unthreaded Length | 0.0 inches (Fully threaded body) |
| -34 | Overall Case Length | 3.4 inches (Standard threaded reach) |
| -10 | Total Length | 1.0 metre (3.3 feet) integrated lead |
| -02 | Connector Type | Miniature coaxial ClickLoc™ connector (Standard cable) |
| -CN | Agency Approval | Country-specific approvals (China) |
Transducer Principle: Eddy Current (Inductive)
Linear Range: 2.0 mm (80 mils)
Scale Factor: 7.87 V/mm (200 mV/mil) ±5%
Frequency Response: 0 to 10 kHz
Target Material: AISI 4140 Steel (Standard Calibration)
Operating Temperature: -51 °C to +177 °C (-60 °F to +350 °F)
Tip Material: Polyphenylene sulfide (PPS)
Case Material: AISI 303 or 304 Stainless Steel (SST)
1. Mounting and Gapping
Thread the probe into the mounting bracket or machine casing. To set the gap accurately, use a digital voltmeter to monitor the DC output of the Proximitor® sensor. Adjust the probe position until the voltage reads -9.0 VDC, which corresponds to the midpoint of the 80-mil linear range.
2. Securing the Probe
Once the gap is set, tighten the locknut to the recommended torque of 4.5 N·m (40 in-lb). Re-check the gap voltage after tightening; if the voltage has shifted significantly, loosen the nut and re-adjust.
3. Connector Management
The ClickLoc™ connector requires a firm push to engage. You should hear/feel a "click" indicating a secure electrical connection. Since this is the "without armor" version, ensure the coaxial cable is supported and not subjected to sharp edges or high-tension pulling during routing.
4. System Length Consistency
This probe has a 1.0m total length. To ensure the system remains within calibration, it must be used with a 4.0m or 8.0m extension cable to achieve a total system length of 5.0m or 9.0m, matching the Proximitor® sensor's requirements.
Country of Origin: Made in U.S.A.
Net Weight: 0.323 kg
Shipping Weight: 2.0 kg
Compliance: NEPSI/CCC (CN Option) for hazardous area use.
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Returns & Warranty

Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
Silver
Blue
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| Country of origin |
United States
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