Bently Nevada Proximitor | 330780-91-00

Engineering Purpose

The 330780-91-00 is a specialized signal conditioner for the 3300 XL 11 mm proximity transducer system. Designed for applications requiring an extended linear range—such as axial thrust position monitoring on large steam turbines—it converts the impedance changes of an 11 mm probe into a precise linear voltage. The 11 mm system is favored when target surfaces are too large for standard 8 mm probes or when significant shaft movement is expected.

Technical Data Summary

• Component Type: 3300 XL 11 mm Proximitor Sensor

• Part Number: 330780-91-00

• System Length: 9.0 meters (29.5 feet)

• Mounting: 35 mm DIN rail mount

• Scale Factor: 3.94 V/mm (100 mV/mil)

• Operating Voltage: -17.5 Vdc to -26 Vdc

• Operating Temperature: -35°C to +85°C (-31°F to +185°F)

• Net Weight: 0.255 kg (0.56 lbs)

Decoding the Model Configuration

• 330780: Bently Nevada 3300 XL 11 mm Proximitor series base platform.

• 91: Total Length and Mounting Option. Calibrated for a 9.0-meter system length and equipped with a DIN rail mounting base.

• 00: Agency Approval Option. Standard configuration; no hazardous area certifications required.