Parkside PZM 2 A1 Operation And Safety Notes page 50

Press REL 11 . The product enters the relative
mode . The current reading is stored in the
memory .
–0 and
–REL 16
are shown in the display 6 .
NOTE: The product cannot enter the relative
mode if OL ("over range") is shown in the
display 6 .
In subsequent measurements, the difference
between the stored reference and the new
measurement is shown in the display 6 .
Exit relative mode:
–Press REL 11 again .
–REL 16 goes off in the display 6 .
NOTES:
The actual value of the object under test
must not exceed the full-scale value of the
present range when using the relative mode
(Exception: This does not apply to the
capacitance function) .
Avoiding wrong measurement result: Do not
enter the relative mode when
in the display 6 .
If measurements are "over range": OL is
shown in the display 6 .
50 GB/IE
21 is shown