11
PPM sample gas. Press OK and then
to go to the next point. In this way
the demarcation of all the seven points is finished ( six sample gas value and
one zero point value ). After all the sample gas
’
s demarcation is finished, the
user can restart the leakage detector for the next detection.
VI. Announcements
1. Please keep the body of the whole instrument clean and tidy. Avoid the
entrance of any impurities to enter the probe or the vacuum pump. The
machine should be kept in a dry and windy place to avoid humidity.
2. Since the probe needle valve has been adjusted well before it is sold,
do not adjust it in normal condition. If the place of the needle valve changed
due to any improper use or uncertain reason, the user should readjust it till the
intaking gas reaches an appropriate amount. The three adjustable
potentiometer inside the searching unit has been set for its output voltage and
signal output value before selling. In generall it doesn
’
t need to be adjusted
again. If there is a need to adjust it, please refer to the technical parameter of
the instrument to do it, or the inside component may be burnt. Each time when
the inside potentiometer is adjusted, the instrument has to be demarcated too.
Or else the detectiong data will not be accurate.
3. After a long-term use the O-like rubber washer at the connection point
of the needle valve gets aged. As a result, the leakage at the connection point
affects the vacuum degree. So it should be changed at once.
44. Do not overturn the detector or shake it violently. It may cause
abnormal state of the searching unit or other movable components and affects
the detector
’
s function.
5. If there is no signal or a snowflake screen when the detector is started,
press
and then QUIT to refresh it.
