Technical specifications:1) Working temperature: -30 ~ 70°C2) Relative humidity: 0 ~ 90%3) Hook load and weight on bit: 0 ~ 5,000kN (uncertainty ±1.5%F.S)4) Rotary torque: 0 ~ 40kN.m (display model 0-500) (uncertainty ±2.5%F.S)5) Tong torque: 0 ~ 100kN (load on the tail line) (uncertainty ±2.5%F.S)6) Mud pressure: 0 ~ 40MPa (uncertainty ±1.5%F.S)7) Rotary speed: 0 ~ 300rpm8) SPM: 0 ~ 300s/min9) Mud flow: 0 ~ 100%10) Working power: 220V AC ±10% (47 ~ 63Hz)