-9-
case, please change battery immediately.
2. AC/DC measurement switch
The tester default to DC measurement after boot up. Press
to
switch the AC/DC function. LCD will display DC or AC to corresponding
switch function.
3. DC Calibration
Before measuring DC current, press DCA ZERO key to reduce the
residual magnetism to Zero, and then conduct measurement. Rational
usage of this Adjust Zero function will make the results more accurate.
For example, after boot, before measurement, we can take the jaw close
to the DC current wire. LCD will show an inductive current. Press DCA
ZERO to calibrate, which deduct the inductive value. Showing below: