Baumer Hubner tachogenerator TDP 0,2 LT-1 B10 55. The main purpose of Baumer tachogenerator is measurement of the direction of rotation and speed via voltage output signal. The rate of this voltage corresponds to the speed of rotation of the shaft. MAIN FEATURES BAUMER HUBNER TDP0,2LT-4B10 55: ø 11 mm Protection: Up to IP55.. Open-circuit voltage: 150 mV per rpm. Linearity tolerance: ≤0.15 %. Reversal tolerance: ≤0.1 %. Operating temperature: -30...+130 °C. Double silver track. EURO Flange B10. Maintenance-free during the life time of the ball bearings. Easy access to the terminals by a reversible terminal box. Speed and direction of rotation measured in real-time.