1.Cut-off signal protection. 2.Over-torque of two- way protecting function. 3.Auto switch function. 4.Dynamic braking. 5.Servo-motor with double protection and high-efficiency. 6.Stronger anti-interference function. Input signal4-20 ma dc Output signal4-20 ma dc Basic error±0.5%, ±1%, ±2.5% Deviation?¤1.5% Dead zone0.5%-3% (can ajust as requirements) Damping characteristic no swing Supply voltagek: 220v. Ac 50hz Supply voltagef: 380v. Ac 50hz Connection typeflanged directly&horizontal(foot) type Temperatureintegrated type:-10+55 Discrete type:-25+7c Humidity?¤85%, excluding corrosion medium in ambient air Protection classip55, ip65, ip67 Protection of signal interruptionfully-closed or remain original position