Bently Nevada 991-06-50-01-00 Thrust TransmitterDescription This 991 06 50 01 00 is transmitter provides a 4 20 mA signal proportional to thrust position, ideal for monitoring shaft axial displacement. It is a 2 wire, loop powered device designed to accept inputs from the 3300 NSv proximity probe and its matching extension cable. The transmitter conditions these inputs into appropriate engineering units for accurate axial position readings. Specifications Full Scale: 0. 6 to 0. 6 mm Sensitivity: 0.