AGFA Drystar 5500 User Manual page 102

102 | Drystar 5500, Drystar 5503 | Advanced Operation (key-operator mode)
The displayed values (that have to be monitored) represent the following
steps on the test film:
Operating Level
Base + Fog
Low density the density value of the low den-
Mid density
High density the density value of the high
5. Record the density levels on Chart 1 ('Determination of Operating Levels').
6. Press the Confirm key to return to the main menu.
7. Repeat steps 1 through 6 once a day for five consecutive days, as indicated
on the Chart 1.
8. Calculate the average value of the densities from the five images. These
values represent operating levels or aim values, for each density.
9. Record the respective aim (average) values as the 'Operating levels' on
Charts 2a and 2b ('Daily Density Control Chart').
The calculated 'Operating levels' should be as follows:
Operating Level
Base + Fog
Low density
2901J EN 20191018 0826
the density value of the Base +
Fog step
sity step
the density value of the mid den-
sity step
density step
WARNING:
If the mid density value does not meet or exceeds the
recommended values, the cause must be found and the
problem solved before any further clinical films can be
printed. If the problem can not be solved, call your local
service organization.
Value (Macbeth units)
(according to NEMA standards XR 23-2006)
0.22 ± 0.03
0.52 ± 0.07
Value (Macbeth units)
(according to NEMA
standards XR
23-2006)
0.22 ± 0.03
0.52 ± 0.07
1.35 ± 0.15
2.35 ± 0.15