How to measure a zero line with a universal watch?
The black pen line around the left circle (see Figure 2-3) of course, the more the better, pay attention: this black pen needle do not touch hands, to prevent electric shock
Range from 200mV~750V, the general 200V file, some clamp type table no 200V file can choose a bigger range, the pointer multimeter stalls to dots can choose 10 V ~100V 3, and then the probes were inserted in V /COM (Jack 220V voltage measuring everyday appliances)
The meter switches to the AC voltage file, so all the meters should have such a function
Right hand with the red pen were measured in the zero line or line, you write down the results of the 2 measurements, the small FireWire, zero line.
