Bently Nevada 330850-50-CN | 3300 XL Proximity Sensor

Product Overview

The 330850-50-CN functions as a 5 mm proximity sensor within the Bently Nevada 3300 XL series. This compact unit captures non-contact displacement and vibration data from rotating machinery. Consequently, engineers gain reliable measurements in tight installations where mounting space remains limited.

Technical Specifications

Parameter	Value
Probe Tip Diameter	5 mm
Total Length	0.5 meter (probe plus cable)
Weight	Approximately 150 g
Connector Type	ClickLoc coaxial connector
Cable Type	75 Ω coaxial, FEP insulated
Operating Temperature	-35°C to +177°C
Storage Temperature	-51°C to +177°C
Linear Range	1.5 mm (60 mils)
Recommended Gap	-10 V DC (about 1.0 mm)
Frequency Response	0 to 10 kHz
Tip Material	Polyphenylene sulfide (PPS)
Case Material	Stainless steel
Mounting Thread	3/8-24 UNF
Minimum Target Size	15 mm

Construction and Materials

The sensor tip uses polyphenylene sulfide, which resists abrasion and chemical exposure. Meanwhile, the stainless steel body delivers rugged mechanical protection during continuous duty. The slim housing fits narrow spaces, so technicians mount it without extensive machine modification.

Interface and System Compatibility

This sensor pairs with 3300 XL extension cables and Proximitor sensors. Additionally, its 75 Ω impedance maintains signal fidelity across the entire measurement chain. Therefore, readings stay stable even when cable lengths differ between installations.

Installation Guidelines

A target measuring at least 15 mm wide ensures complete linear range coverage. Furthermore, technicians must observe side clearance and cable bend radius limits. Correct gap voltage adjustment directly influences measurement accuracy, so verify it after every mounting change.