10 BG 805 812 BE (0206) CP400.oi
6 Troubleshooting
Before any trouble shooting of the CP 400 is started, please verify the
proper functioning of the SEM.
Problem Possible cause Correction
High voltage arcs, coronas or pulses
registered where no peaks occur when
the high voltage is on
Condensed water
or
High voltage unit contaminated
Open cover, dry thoroughly with hot air
(£50 °C).
Clean carefully.
No pulses counted High magnet fields in the area of the
SEM, caused e.g. by the permanent
magnet of cold cathode vacuum gauges,
magnetic clamps etc.
Remove the reason for the magnetic
fields or arrange them in a way to avoid
the influence on the SEM
For repairs please contact your local Pfeiffer Vacuum service center.
7 Storage
Caution
Caution: electronic component
Inappropriate storage (static electricity, humidity etc.) can damage
electronic components.
Store product in antistatic bag or container. Observe the correspond-
ing specifications in the Technical Data (®26).
8 Returning the Product
WARNING
Caution: forwarding contaminated products
Contaminated products (e.g. radioactive, toxic, caustic or biological
hazard) can be detrimental to health and environment.
Products returned to Pfeiffer Vacuum should preferably be free of
harmful substances. Adhere to the forwarding regulations of all
involved countries and forwarding companies and enclose a duly
completed declaration of contamination (®212).
Products that are not clearly declared as "free of harmful substances" are decon-
taminated at the expense of the customer.
Products not accompanied by a duly completed declaration of contamination are
returned to the sender at his own expense.
