AC/DC Adaptor
AC of 100-240V should be used as much as possible if available to prolong service life of
internal battery. Make sure that the output plug of the adaptor is inserted into the adaptor
socket as shown in the figure below. Then the output plug of the adaptor is inserted into
the power outlet.
Adaptor
Adaptor Socket
At this time the instrument screen displays the changing frame.
Inspection of crystal
Turn on the power switch and the instrument is energized as shown in the figure below.
Then the operation status shifts to blinking “wait”. Waiting in about 10 seconds until the
crystal frequency becomes steady, “wait” is no longer blink. Check the surplus frequency
first.
a. If there is too much dust on the crystal (
>
10
μ
g), “cleaning” will blink, indicating
crystal needs cleaning.
b. In other condition the user can judge by the surplus frequency the amount of dust on
the crystal to determine whether crystal needs cleaning (if surplus frequency is
approaching the right end point, this shows the frequency may exceed upper limit, then
“cleaning” is shown. It may affect the measurement precision or pause the measurement).
2002/12/12 12:12:12
120s No:003
｜
｜
0 . 0 0
ｍｇ／ｍ３
WAIT
Surplus of cleaning
Operational Status
8
