Uni-Probe LB 490
BERTHOLD TECHNOLOGIES GmbH & Co. KG
1 – 49
Volume 1 7 Source Replacement
1
you can later place the source holder and the source temporarily on
a piece of paper to protect it from dirt.
Turn the shieldings to the CLOSED position and secure them. We
recommend placing the individual shielding upright. In particular,
the rotating cylinder has to be secured against tipping over, before
releasing the head flange. Bring the transport shielding containing
the new source close to the measuring site and open it such that
the new source can be taken out and the old rod source put into the
transport shielding as quickly as possible.
Check that the sources are installed in the proper position. Note the
respective marking rings on the source (top = 1 ring; bottom = 2
rings (see Figure 7-2).
Figure 7-2 Markings on shielding and rod source
If you are working with several sources, make sure that the
sources cannot be mixed up. Multi-part sources must be set up in
the proper order. The installation pattern of multi-part sources is
indicated by the letters A, B, C etc. from top to bottom (see Figure
7-3 on page 1–50).
With multi-part sources, the rings on the rod source indicate the
installation order and position. It is important to observe these
instructions when replacing a source.
Shielding Rod sources
Top: 1 ring
Bottom: 2 rings
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