BERTHOLD TECHNOLOGIES LB 480 - Page 143

SENSseries LB 480 Level measurement
BERTHOLD TECHNOLOGIES GmbH & Co. KG
1 – 143
Volume 1 10 Source Replacement
1
Health hazards due to radiation!
Do not remove the source from the shielding!
Do not touch the source to prevent a high partial body dose. Touch
the source only with a tool that allows you to hold the source easily
and safely. Keep the source far away from your body and set it
down behind an auxiliary shielding.
 Screw the source holder (6) together with the source (7) using
a socket wrench (size 12 mm).
Remove source from shielding  Unscrew the source from the source holder using a socket
wrench (size 10 mm). Hold the source holder using a second
socket wrench (size 12 mm).
IMPORTANT
For this work, you should use the shielding housing as auxiliary
shielding between source and body.
 Take hold of the source using a pair of pliers and immediately
put it into the transport shielding or another shielding.
IMPORTANT
Make sure the source is not mixed up with the new or another
source.
 If necessary, clean and grease the thread on the source holder
and the shielding.
Install new source  Using a pair of pliers, take the new source out of the transport
shielding and firmly fix it onto the source holder together with
the locking washer (torque: 3.5Nm).
 Put the source holder with the source again into the shielding
and fix it using the socket wrench (torque: 44Nm).
 Check the proper ON/OFF function.
 Carefully close the transport shielding again, after you have put
the old source into the transport shielding.