Edwards CP35KB, Инструкция по эксплуатации, Страница: 12 / 20

D0300010001EN - Maintenance
Page 6
Maintenance
Cleaning of the gauge head
To clean the gauge, pull out anode ring ( Figure 2 item 5), ceramic disc ( Figure 2 item 6) and
cathode plate ( Figure 2 item 4) inside the housing ( see Mechanical maintenance ). If required,
clean the anode ring with abrasive emery cloth. Do not attempt to clean the cathode plates.
Dirty cathode plates must be exchanged.
In order to provide protection against soiling of the bushing, the gauge heads are supplied
with a ceramic disk between the anode ring and the bushing.
The position of the disk is shown in Figure 2 .
Each time the anode ring or cathode plate is exchanged, the ceramic disc must also be
exchanged.
No cleaning is required when exchanging the cathode plate and anode ring. Refer to
Mechanical maintenance .
After removing the emery paper residues and reassembly of the components, any
fingerprints and other residues have to be removed by rinsing the gauge head with a solvent,
followed by a drying period.
For thorough cleaning of the gauge head cell, it is recommended to dismantle the permanent
magnets. Only then it is possible to flush out any iron filings from the measuring chamber that
have been attracted by the magnets.
WARNING:
Contaminated parts can be detrimental to health and environment.
Before beginning work, find out whether any parts are contaminated. Adhere to the
relevant regulations and take the necessary precautions when handling contaminated
parts.
CAUTION:
Dirt and damage can impair the function of the vacuum component.
When handling vacuum components, take appropriate measures to ensure cleanliness
and prevent damage.
CAUTION:
Touching the product with bare hands increases the desorption rate.
Always wear clean, lint-free gloves and use clean tools when working in this area.