Edwards ELD500 Series, Инструкция по эксплуатации

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D13510840D - Calibrated leak He 8
Page 70
Handling of calibrated leaks
Calibrated leaks are delicate instruments and should be carefully handled and protected
against shocks. Calibrated leaks are made of glass contained in a protective metal tube.
Therefore, calibrated leaks should be stored in a dry dust-free location. When unused, the
built-in valve should remain open - see Description .
If the sealed-off glass tip in the gas filling port of the calibrated leak He 8 becomes
damaged due to rough handling, a loss of search gas may cause a change of the nominal
leak rate.
Maintenance
Return of equipment
In order to comply with law (occupational, health and safety regulations, safety at work
law and regulations for environmental protection) vacuum pumps, components and
measuring instruments returned to the manufacturer can be repaired only when certain
procedures are followed. Read form HS1 and fill out HS2, which can be found at the back
of printed manuals or can be downloaded from http://edwardsvacuum.com/HSForms/.
Factory inspection
Calibrated leaks are not subject to wear and the helium loss is less than 1% per year.
Nevertheless, the leak rate may change over time due to external influences. A yearly
factory inspection is therefore advisable.
Waste disposal
The equipment may have been contaminated by the process or by environmental
influences. In this case the equipment must be decontaminated in accordance with the
relevant regulations.
Separate clean components according to their materials and dispose of them accordingly.
When returning any equipment observe the guidance given in
Return of equipment .
CAUTION:
Before beginning any work, first find out whether any parts are contaminated. Adhere to
the relevant regulations and take the necessary precautions when handling contaminated
parts.