... Arrangement Winch together with JCK-1 Winch Controller is specially equipment, which is developed for the requirement of field logging. This ... automatic calibration depth, alarm for depth abnormal change. The equipment is manufactured according to the standard (DZ/T 0196.8 1997 < ... resources of the People's Republic of China (PRC), and is suitable for application to geology, metallurgy, coal, oil, and ...