330701-00-20-40-02-00 Sensor Technical Guide and Installation
Product Introduction
The Bently Nevada 330701-00-20-40-02-00 belongs to the renowned 3300 XL series of proximity transducers. Firstly, this probe measures static and dynamic displacement of rotating shafts. Moreover, it integrates seamlessly with 3300 and 3500 monitoring systems. The model number 330701-00-20-40-02-00 specifies a 1-meter system length with a standard armored cable. In addition, the probe tip uses a polyimide material for high-temperature resistance. Therefore, plant engineers trust this sensor for critical turbomachinery applications.
Core Value
This proximity probe delivers exceptional measurement accuracy for condition monitoring. Firstly, the 330701-00-20-40-02-00 provides a linear range of 2 mm with high sensitivity. Moreover, its non-contact design eliminates wear and extends service life. The probe also resists electromagnetic interference in harsh plant environments. Furthermore, the 3300 XL series offers interchangeability without recalibration. Besides, the sensor supports API 670 compliance for machinery protection. Consequently, maintenance teams reduce unplanned downtime significantly.
Technical Insights
The 330701-00-20-40-02-00 operates on eddy current principles. Firstly, the probe generates a high-frequency radio signal from its tip coil. Moreover, the target surface modulates this signal according to shaft position. The system then demodulates the signal into a proportional voltage output. In addition, the probe achieves a frequency response up to 10 kHz. Furthermore, the 8 mm tip diameter suits standard shaft targets. Meanwhile, the armored cable protects against mechanical damage. Specifically, the operating temperature range reaches 177°C at the probe tip. Therefore, the sensor performs reliably in steam turbine and compressor applications.
Installation & Maintenance
Proper installation ensures accurate measurements from the 330701-00-20-40-02-00. Firstly, mount the probe through a rigid bracket to avoid vibration errors. Moreover, maintain the specified gap voltage between 8 and 12 volts DC. In addition, route the extension cable away from high-voltage sources. Furthermore, verify the probe gap with a feeler gauge during setup. Besides, perform periodic checks on cable connectors for tightness. Meanwhile, clean the probe tip gently during scheduled outages. Specifically, inspect the armor jacket for wear or abrasion damage. Therefore, follow these steps to maximize sensor reliability.
Buyer's Guide FAQ
Q1: What is the measurement range of the 330701-00-20-40-02-00?
The probe offers a linear range of 2 mm with a sensitivity of 7.87 mV/µm.
Q2: Which monitoring systems support this probe?
The 330701-00-20-40-02-00 works with Bently Nevada 3300 and 3500 series monitors.
Q3: What is the cable length of this model?
This model includes a 1-meter system length with armored cable construction.
Q4: Can the probe operate in high-temperature areas?
Yes, the probe tip withstands temperatures up to 177°C for turbine applications.
Q5: Does the probe require calibration after replacement?
The 3300 XL series allows probe interchange without full recalibration in most cases.
