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Mass Display
Hardware and Sensor
Diagnosis
Beta Attenuation Detector
Thermo Fisher Scientific
For the purpose of inserting a new filter tape, it is possible to open the
measuring head by pressing YES. The pump is then switched off
automatically.
To stop the motor, press the NEXT and BACK keys. Subsequently, the
measuring head should be closed again or a filter change should be
performed to continue operation.
In case the measuring head has been opened, as
described in the previous menu, the filter tape
transport motor can be switched on by pressing
the YES key. The number displayed symbolizes
the counts of the incremental encoder. This way,
it is always possible to check the filter tape for
correct transport (for example, especially after
installing a filter tape printer).
To close the measuring head, press YES. The
user may also press the FC+Z key to initiate a
full filter change and zero if sampling is to
resume. Press NEXT.
In this screen, the instantaneous mass reading
(MASS) smoothed mass (QLF) are made. In this
menu, the mass can be set to zero or the entire
mass calculation can be reset using the ZERO
and RESET keys, respectively. Once the mass is
stable, the QLF value will appear with an
asterisk (*) next to that value and a confidence
value will appear to the right of the QLF. Press
NEXT.
In this screen, a diagnosis of the measurements
being made are provided. Press YES.
Beta-attenuation Detector. In this screen, the
user can validate the initial beta count (R
real-time beta counts (R
(R
), and the reference setting (Rref ) are all
α
being measured by the proportional detector.
Model 5030 SHARP Monitor Instruction Manual
Operation
Service Menu
), the
βø
), the alpha counts
β
3-13
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