how to reset prepaid electricity meter

{"cid":"91176406","title":"Contactless RF Intelligent Electric Meter , Prepaid Energy Meter Using Smart Card","imgUrl":"https:\/\/img.ismap.com\/nimg\/6f\/83\/7bd582088b8f73be82bc24522b6b-200x200-1.jpg","attrs":{"Price":"Negotiate","Brand Name":"Radarking","Model Number":"DTSY150\/RF","Minimum Order Quantity":"100pcs","Delivery Time":"30 days","Certification":"IS09001; IS014001; IEC62052-11; IEC62053-21;","Place of Origin":"Made in China","Payment Terms":"Western Union, T\/T, L\/C","Packaging Details":"Standard Package","Supply Ability":"5000000 pcs\/year","Theory":"Three Phase Prepaid Electric Meter","Card Type":"RF Card","Indicator":"LED","Data Storage Period":"More than 10 Years","Refer. Voltage":"3*220V\/230V\/240V","Refer. Current":"3*5(40)A"}}