VEGA VEGASOURCE 31 - Manual (Page 40)

40
7 Maintenance and fault rectification
VEGASOURCE 31 •
38131-EN-130415
tions and comprise, apart from the source container also all other
affected parts of the process vessel.
The tightness test must be carried out immediately after an incident.
The tightness test described below is:
•
For regular test during operation
•
During a longer storage period of the source container
•
When the source container is put into operation after a longer
storage period
The tightness test (also wipe test) must be carried out by an author-
ized person or organisation by means of a tightness test facility which
is procured by an authorised organisation. Tightness test facilities
must be used according to the instructions of the manufacturer. Proto-
cols on the rest results must be kept.
If there is no other instruction available, carry the tightness test as
follows:
A B
C D
KLMN
Fig. 29: Wiping surfaces for the tightness test
1. Take wipe samples at least from the following positions:
Version A B C D - along the groove between source insert and
housing
Version K L M N - along the thread of the proximity switch and the
three circular grooves on the cylinder housing
With manually operated source holders, the thighness test can be
carried out when the source holder is in position ON or OFF.
With source holders with pneumatic switching facility, the switch
must be fixed with the lock in position OFF before starting the
tightness test.
Sequence of the tight-
ness test