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SECTION VII - SOURCE CHANGING
The special form sealed source, source assembly and the collimators contained in the Model 989 exposure device may only
be changed by QSA Global, Inc. or one of its authorized service centers. Source changing of this device requires the use of a
shielded cell and specially designed tools. A source changer/storage container is not available for the Model 97941, 98940 or
98941 source assemblies.
The Model 989 exposure devices must be returned to QSA Global, Inc. or one of its authorized service centers for source
replacement. During this source replacement, the device can be inspected as part of its annual inspection and maintenance as
required by the customer. Annual servicing of pneumatic actuators is also required to maintain the designed safety.
Summary of Contents for 989
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