EN Figure 11-1 Principle diagram of measurement method ................................... 65 Figure 11-2 Zero adjustment schematic diagram ................................................. 66 Figure 11-3 Zero adjustment of clamp type test line .......................................... 67 Figure 11-4 Zero adjustment of needle shaped test line ................................... 67 Copyright © Qingdao Hantek Electronic Co., LTD HBT4000 series user manual IX