are working normally
Malfunction 2: When the arm sways to reaction disk
position, photo sensor couldn’t detect signal
Solution: Manually make the probe mechanism rise to
peak repeatedly, transfer the multimeter to DC, negative
point P042 core plug No.3, positive point P042 plugs to
core plug No. 2.
1, multimeter readings between the positive changes in 5V
and 0, indicates photo sensor and lead are normal
(1) Check conductors
Check conductivity of probe photo sensor J202 to the
reagent disc circuit board (P042) is connected good or not,
check both ends of the connector are connected well or
not.
(2) Check sample&reagent disc circuit board’s photo
sensor’s input electric circuit
2, No change on multimeter reading
(1) Check lead
Check plug P042 core plug 1,2,3 is connected well or not
and whether both ends of the connection wire is good or
not
(2) Check photo sensor signal
Check voltage between P042 pin plugs 1,3, if the voltage
is not 5v, check the connection plug is connected well or
not. If the voltage is 5v, check the J042 socket 2 feet of
potentials, when it is up to peak, when the potentials is
high, if not, potential’s low. If the potential is not normal,
check photo sensor.
Malfunction 3: Couldn’t sway to reaction disk position
Solution: mechanical repair
8-6
Reagent probe
abnormal
When the
Sample&reage
nt probe
switches to
another
location, it
couldn’t leave
reaction disk
window, execute "mechanical movement". Observe probe
running status.
Malfunction 1: Sample&reagent probe couldn’t sway
Solution：same as to 8-5
Malfunction 2：The arm can leave reaction disk position,
however, the photo sensor couldn’t detect any signal
To Next Page
Loading...