Human HumaStar 300, Service Manual

Page: 295 / 405

maIntenanCe
277
27. Loosen screws (3 or 4) and rotate the ADJ Vertic. (1 or 2) and maxi-
mize the value displayed in “READINGS”. Lock the blocking screw. If
necessary repeat the alignment to obtain an optimum value that is
between 39.000 e 60.000.
28. Click on CHeCkboX  to block the continuous reading.
29. Repeat
[WateR b]
and check all the other 7 filters that the values
are within the required 39.000
÷
60.000.
30. Disconnect the lamp from its power supply board and connect the
second lamp for alignment. Wait about 5 min to stabilize the lamp.
31. Repeat operations from 13 above to align the second lamp.
When finished, turn OFF the analyzer and reinsert the side panel
tp3 mv Counts a/d % trasmission mabsorbance x 1000
1 5000 65535 100 0
2 4580 60030 91,6 38,1
3 3810 49937 72,6 118
4 3000 39321 60 221,8
5 2000 26214 40 397,9
6 1000 13107 20 698,9
7 500 6553 10 1000
8 250 3276 5 1301
9 100 1310 2 1,699
10 50 655 1 2000
11 5 65,5 0,1 3000
18.4.2 to equalize and ReplaCe filteRS
This procedure is to be done using the
Tester exe. When maximizing the va-
lue at 340 nm and the other filters are
below or above the optimum values
of 39.000 to 60.000 counts. The Trans-
mission value can be changed by incre-
asing or decreasing of the number of
neutral disks present inside the inter-
ference filter.
table 16
Conversion Values
figuRe 53
91,6
and
60
are
Optimum values
for Photometer
Lamp alignment.
before connecting the multi-
meter, the negative to jp1 of
board adC eb0089.01 and the po-
sitive to tp2, check first the vol-
tages of each filter inside the filter
wheel. note the value in volt of
each filter as measured with the
multimeter.
figuRe 54