Operation; Setup - Speed Shuttle Calibration - Thermo Scientific Apex Service Manual

Operation

Setup – Speed
Calibration
Thermo Fisher Scientific
REC 4258 Rev C
Ensure product calibration (sensitivity and phase) is complete before
AuditCheck is enabled.
After initial setup the test sphere is firing synchronized with the
product at a regular interval set by the Test interval. The resulting head
signal (Current Peak) is then measured and compared with the
calibration results (Learnt Peak).
If the signal is outside of tolerance, a fault is generated. This indicates
there has been a change in sensitivity and/or phase angle. Such small
changes would not typically be detectable using manual methods.
To begin initial setup, the valves on the ends of the AuditCheck tube
must now be adjusted for proper passage of the shuttle. The air
Shuttle
regulator for AuditCheck should be set at the desired setting. The
setting is not critical but must not be changed after AuditCheck has
been setup since the change in air pressure affects the speed of the
AuditCheck shuttle as it passes through the head.
The AuditCheck shuttle should be adjusted so it moves from position
"A" to "B" at the same speed as the product, dwells for a minimum
amount of time, then returns to position "A" as rapidly as possible so it
is ready for the next operation.
1. Select
2. Use the down arrow to screen 2 of 4 and select
If the detector is in bulk mode with no photoeye, the
AuditCheck shuttle fires when the RUN MANUAL AUDIT
CHECK icon is pressed. If there is a photoeye installed it does
not fire until a package passes the photoeye and reaches the
head. (It is not necessary to pass a package the infeed photoeye
can be blocked with a hand).
Observe the shuttle as it emerges from the downstream side of
the head after AuditCheck is fired. The shuttle should just reach
the O-ring stop and then return. If it does not reach the stop, the
valve on the downstream side should be opened up (turned
counter clockwise) to allow more airflow through the valve. If it
reaches the stop and remains there, the airflow should be
restricted by turning the valve clockwise.
AuditCheck™
AuditCheck™ 7-3