330780-91-05

Bently Nevada 330780-91-05 is a 3300 XL 11 mm Proximitor Sensor. The 91 selection combines 9.0 m electrical calibration with DIN mounting. A 1 m 3300 XL 11 mm probe and an 8 m compatible extension cable form one standard combination. Monitor field wiring is a separate circuit and does not count toward this calibrated probe-plus-extension length.

The Proximitor Sensor accepts one probe circuit and conditions target-distance changes into a voltage signal. The matched 11 mm system has a nominal 4.0 mm linear span and 3.94 V/mm scale factor under its reference conditions, with a recommended 2.5 mm gap. The receiving monitor must use the corresponding scale rather than the 7.87 V/mm scale of an 8 mm system. Without barriers the supply range is -17.5 to -26 V DC, at up to 12 mA. With barriers the specified range is -23 to -26 V DC. A supply more positive than -23.5 V DC can reduce output headroom and usable linear range. The extended deviation-from-straight-line range is not applicable with zener barriers.

SpringLoc terminals accept 0.2-1.5 mm2 conductors, or 0.25-0.75 mm2 with ferrules. The output resistance is 50 ohms; field wiring can extend to 305 m under the specified response conditions. Typical system response is 0-8 kHz at +0/-3 dB. The conditioner operates from -52 to +100 deg C and stores up to +105 deg C, independently of the higher probe temperature limit.