Hitachi 902 Service Manual page 17

Alarm
Alarm Category
Control
No.
72 to 85 SAMPLE
PROBE
101 to SAMPLE
106 DISK
NOTE: 2. S.STOP may be issued only during operation.
Sub-
Level
code
6 6 STOP
6 7 S.STOP/
STOP
(Note 1)
6 8 S.STOP/
STOP
(Note 1)
6 9 S.STOP/
STOP
(Note 2)
6 11 S.STOP/
STOP
(Note 1)
6 12 WARNIN
G
6 13 S.STOP/
STOP
(
Note 2)
6 14 STOP
6 15 STOP
8 1 S.STOP/
STOP
(
Note 2)
8 2 S.STOP/
STOP
(
Note 2)
8 3 S.STOP/
STOP
(
Note 2)
8 4 S.STOP/
STOP
(
Note 2)
2 - 5
Description
The serum probe does not
go down from the upper
dead point in descending
motion (on the cell side).
Detection of abnormal
descending motion of the
serum probe remains on.
When serum probe turns to
the cell side, the cell position
cannot be detected.
When the serum probe turns
from the cell side to other
position, it does not come off
the cell position.
Before the probe goes down,
the liquid level detector is
already turned on.
The serum probe moves
down abnormally in
descending action (only at
turning of the serum probe in
adjustment).
In rotation of the serum
probe, it is not set at the
upper dead point.
In rotation of the serum
probe from the reset
position, it does not come off
the reset position.
In rotation of the serum
probe to the reset position, it
cannot detect the reset
position.
The sample disk cannot
detect the stop position on
outer track.
The sample disk does not
stop at the specified position
on outer track.
The sample disk cannot
detect the stop position on
inner track.
The sample disk does not
stop at the specified position
on inner track.
(cont'd)
Remedy
Check the upper dead
point detector.
Refer to alarm code
6-3.
Check the home
detector.
Same as above
Refer to alarm code
6-3.
Same as above
Check the upper dead
point detector.
Check the home
detector.
Same as above
Check the outer track
detector.
Same as above
Check the inner track
detector.
Same as above