Hitachi 902 Service Manual page 16

Alarm
Alarm
Control
No.
61 to 65 R. DISK
71 SAMPLE
PROBE
72 to 85 SAMPLE
PROBE
NOTE: 1. S.STOP may be issued only during operation.
Sub-
Category Level
code
5 1 STOP
5 2 STOP
5 3 STOP
5 4 STOP
5 5 STOP
6 1 S.STOP/
STOP
(Note 1)
6 2 STOP
6 3 S.STOP/
STOP
(Note 1)
6 4 STOP
6 5 S.STOP/
STOP
(Note 1)
Description
The reaction disk cannot
recognize its stop position.
The reaction disk does not
stop at the specified
position.
At resetting, the reaction
disk cannot recognize its
home position.
At resetting, the first cell
on reaction disk does not
stop at the specified
position.
When the reaction disk
turns, the serum probe,
reagent probe, stirrer or
rinsing mechanism is not
set at the upper dead point
(on the cell side).
(When this alarm is
issued, another alarm (on
rinsing or stirring
mechanism) may concur.)
The serum probe does not
reach the upper dead point
in ascending motion (on
other than the cell side).
(Alarm at the first upper
dead point after resetting
will be issued from other
than the cell side.)
The serum probe does not
reach the upper dead point
in ascending motion (on
the cell side).
The serum probe moves
down abnormally in
descending action (on
other than the cell side).
(±3 mm from cup bottom,
0 to 4 mm from cell
bottom)
The serum probe moves
down abnormally in
descending action (on the
cell side).
The serum probe does not
go down from the upper
dead point in descending
motion.
2 - 4
(cont'd)
Remedy
Check the detectors for
stop positions on the
inner and outer tracks.
Same as above
Check the home
detector.
Check the home
detector or inner/outer
track detector.
(1) Perform resetting.
(2) Check the upper
dead point detector
of the mechanism
which caused
alarm.
Check the upper dead
point detector.
Same as above
(1) Check the liquid
level detector.
(2) Replace the liquid
level detector PC
board.
Same as above
Check the upper dead
point detector.