56 63138-US-200110
Corrosion
If there are clear traces of corrosion on the source holder, you must measure the
local dose rate (µSv/h) in the
surrounding areas.
If the rate is clearly above the
values during normal operation, then you must cordone off the area and inform the
responsible radiation safety officer.
Make certain you exchange the corroded instruments and lock washers as soon
as possible.
Test Shutter Mechanism
Test the function of the shutter mechanism on the source holder at regular
intervals
. We recommend carrying out this test every six months. See the Shutter
(ON/OFF) Mechanism procedure.
Manual Shutter Mechanism
To test the function of the shutter mechanism on a manual shutter, complete the
following steps:
1. Remove the padlock.
2. Move the shutter several time from the "ON" to the "OFF" position.
If you are not sure of the proper functioning or condition of the
instrument, contact your VEGA representative.
Only the manufacturer. supplier, or specially authorized personnel
may make repairs or maintenance work beyond the scope of
normal inspection.
Replace source holder
s that have corroded or stiff locking
devices. Also, replace any source holder that has a shutter
that is not operating correctly.
!
CAUTION
!
CAUTION
!
WARNING
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