a Zero Correction. See 1-a. (Fig. 3-1)
4
DC Current Measurements.
b Range Selection.
The selector switch can be
rotated to any one of the five current ranges
prescribed. When in doubt as to the approximate
current present, always start with the highest range.
The switch can be reset to a lower range for a
more accurate reading. (Fig. 3-2)
To obtain an accurate reading, use a range which
will allow the pointer to fall within the right hand
half of the scale.
— lti —