Baumer Hubner tachogenerator TDP 0,2 LT-4 B10 55. MAIN FEATURES BAUMER HUBNER TDP0,2LT-4B10 55: ø 115 mm Up to IP55 protection. Open-circuit voltage: 60 mV per rpm. Reversal tolerance: ≤0.1 %. Linearity tolerance: ≤0.15 %. Operating temperature: -30...+130 °C. Double silver track. Euro Flange. Easy access to the terminals by a reversible terminal box. Maintenance-free during the life time of the ball bearings. Speed and direction of rotation measured in real-time.