Bently Nevada 330878-50-00 Proximitor Sensor

The Bently Nevada 330878-50-00 Proximitor Sensor delivers accurate vibration and position measurements for high-value rotating machinery. The 3300 XL series design improves signal stability, while the 50 system-length option supports efficient panel mounting in both compact and large-scale protection systems.

Product Overview

Engineers integrate the 330878-50-00 into critical monitoring loops because the sensor maintains consistent linearity across its full 50 mm measurement range. The 5.0 m system length also creates flexible routing paths, and the stainless-steel probe construction improves durability in harsh industrial environments.

Performance Characteristics

The 330878-50-00 operates on a 10–30 VDC supply and outputs a 4–20 mA signal that interfaces smoothly with Bently Nevada monitoring hardware. The sensor maintains tight ±0.5% full-scale accuracy, and its electrical characteristics ensure clean, low-noise performance across long cable runs.

Technical Specifications

Electrical & Measurement Data

Parameter	Specification
Model Number	330878-50-00
Sensor Type	3300 XL 50 mm Proximitor Sensor
Measurement Range	0–50 mm
System Length	5.0 m (16.4 ft)
Output Signal	4–20 mA
Supply Voltage	10–30 VDC
Output Resistance	50 Ω
Capacitance	69.9 pF/m (21.3 pF/ft) typical
Accuracy	±0.5% full scale

Mechanical & Material Data

Parameter	Specification
Mounting Option	Panel mount
Material	Stainless steel probe assembly
Weight	Approx. 0.246 kg

Environmental Limits

Condition	Specification
Operating Temperature	–40 °C to +85 °C

Origin

Item	Specification
Country of Manufacture	United States
COO Availability	Certificate of Origin available

Dimensions & Weight

Item	Specification
System Length	5.0 m total system length
Weight	Approx. 0.246 kg

Application Value

Technicians deploy the 330878-50-00 across turbines, compressors, and high-speed rotating equipment because the sensor delivers high-resolution displacement data and enables stable long-term protection strategies.