... IIJ series fully automatic oil tester is designed as per the requirement of IEC156 Testing Method of Insulation Oil Medium Strength ... is convenient to reading and print. The testing data can keep 100 years under the condition of power off. 8) System time ... refiner, oil cleaning, oil recycle, oil reclaiming, oil separator, oil recovery, oil recycle, oil reclamation, oil refinery, oil separator, oil ...