Bently Nevada 330103-17-22-10-12-05 Proximity Transducer

Product Overview

The Bently Nevada 330103-17-22-10-12-05 proximity transducer provides non-contact measurement of shaft displacement and vibration in rotating machinery. This complete transducer system includes a probe, extension cable, and proximitor in one integrated assembly. It directly converts physical shaft movement into a proportional voltage signal for monitoring systems. Plant operators depend on this transducer for accurate radial and axial position measurements. Its reliable performance supports predictive maintenance strategies in turbines, compressors, and generators worldwide.

Technical Specifications

The following table presents the complete technical parameters for the Bently Nevada 330103-17-22-10-12-05 proximity transducer system.

Parameter	Specification
Product Type	Proximity Transducer System (Probe + Extension Cable + Proximitor)
Compatibility	Bently Nevada 3300 and 3500 monitoring systems
Probe Length	170 mm (probe tip to connector)
Extension Cable Length	22 meters (72 feet)
Probe Thread Size	3/4-20 UNF
Probe Tip Material	Polyphenylene sulfide (PPS) with internal coil
Proximitor Output	-1.5 VDC to -23.5 VDC (linear range)
Power Supply	-23.5 VDC to -27 VDC at 12 mA typical
Measurement Range	2.0 mm (80 mils) linear range
Sensitivity	7.87 mV/µm (200 mV/mil) ±5%
Transducer Weight	Approximately 1.15 kg (complete system)
Operating Temperature	Probe: -51°C to +177°C; Proximitor: -35°C to +85°C

System Components and Configuration

Probe Assembly and Physical Dimensions

The transducer system includes a probe with a total length of 170 millimeters from the tip to the connector. This probe uses a 3/4-20 UNF mounting thread for universal installation in standard housings. Its PPS tip material exhibits excellent chemical resistance and thermal stability. This robust construction ensures reliable operation in steam, gas, and process fluid environments.

Extension Cable and Interconnection

A 22-meter extension cable connects the probe to the proximitor within this system configuration. This cable length provides ample distance between the measurement point and the monitoring rack. The cable features gold-plated connector contacts for optimal signal integrity and corrosion resistance. Consequently, the Bently Nevada 330103-17-22-10-12-05 delivers consistent output signals regardless of installation distance.

Proximitor Signal Processing and Output

The proximitor drives the probe’s oscillator circuit and converts the impedance change into a DC voltage signal. This output ranges linearly from -1.5 VDC at 2.0 mm gap to -23.5 VDC at 0.3 mm gap. The system draws approximately 12 milliamperes from a -24 VDC power supply during normal operation. Its output sensitivity holds steady at 7.87 millivolts per micrometer with a tolerance of ±5% across the full temperature range.

Linear Range and Measurement Capabilities

This transducer offers a 2.0 millimeter linear measurement range suitable for most radial vibration and axial position applications. The system maintains linearity within 0.5% of full scale when you calibrate it correctly. This precise measurement capability allows operators to detect subtle shaft movements indicative of bearing wear or unbalance.

Installation and Application

The Bently Nevada 330103-17-22-10-12-05 integrates directly with standard Bently Nevada monitoring racks and data acquisition systems. Users install the probe into a threaded mounting hole, then connect the extension cable to the proximitor. After installation, you adjust the probe gap to position the output voltage at the midpoint of the linear range. This transducer serves all common turbomachinery monitoring applications including radial vibration, thrust position, and differential expansion measurement.