BENTLY NEVADA 330780-90-00 3300 XL 11 mm Proximitor Sensor

Description

The BENTLY NEVADA 330780-90-00 is part of the 3300 XL 11 mm Proximitor Sensor System, a non-contact vibration and displacement measurement device designed to replace the 7200 series 11 mm and 14 mm sensor systems. It receives signals from non-contact 3300 XL 11 mm eddy current probes and extension cables, converting them into a voltage signal proportional to the distance between the probe tip and the monitored surface. Operating with a frequency range of 0 to 8 kHz, it supports measurements including radial vibration and displacement, axial displacement, key phase, differential expansion, piston rod displacement, and speed/zero speed monitoring. Key technical specifications include a power requirement of -17.5 Vdc to -26 Vdc (no barrier) with a maximum current draw of 12 mA, a linear measurement range from 0.5 mm (20 mils) to 4.5 mm (180 mils) from the target surface, and a sensitivity of 3.94 V/mm (100 mV/mil) ±10% across the 4.0 mm linear range. The model code 330780-AXX-BXX indicates the 90 designation corresponds to a specific total length and mounting configuration. With strong radio interference resistance, it is optimized for use on large rotating machinery in power plants, metallurgy, petroleum, and chemical processing facilities, and is compatible with 3300 and 3500 series monitor modules for signal processing, display, and alarm functions.