Seaward Power Clamp - Manual (Page 7)

6
Making Basic Measurements
Preparation and Caution Before Measurement
 : Observe the rules of  Warnings and  Cautions
The figures on the following pages show how to make
basic measurements.
When connecting the test leads to the DUT (Device Under Test)
connect the common test lead before connecting the live lead ;
when removing the test leads, remove the test live lead before
removing the common test lead.
Measuring Voltage
V