8 Troubleshooting
97
8.3
Alarm Occurrence Condition
Item
Alarm
Alarm triggered
Alarm cleared
Alarm
release
*3
Common
WARM-UP
For 60 minutes after power ON
After 60 minutes passed since
power ON
○
CELL MOTOR ERR.
When a rotation of the motor
takes 5 seconds or more.
When a rotation of motor takes
less than 5 seconds.
△
SENSOR COMM.
ERR.
*1
When analyzer unit
communication is abnormal.
When analyzer unit
communication resumes.
△
SAMPLE LACK
When contact input of no sample
is ON for 5 seconds or more.
When contact input of no sample
is OFF for 5 seconds or more.
△
PIO COMM. ERR.
*2
When communication of the input/
output substrate is abnormal
When communication of the input/
output substrate resumes.
△
POWER ON/OFF
History is saved at start up.
BATTERY ERR.
When the backup battery voltage
for clock is less than 2.4 V.
When the backup battery voltage
for clock is 2.4 V or over.
○
LAMP ERR.
When the light intensity of the
light source is decreased.
When the light intensity of the
light source is restored.
△
UV
ZERO CAL.
When zero calibration value is out
of the calibration range.
When zero calibration value is
within the calibration range.
○
SPAN CAL.
When span calibration value is
out of the calibration range.
When span calibration value is
within the calibration range.
○
VIS
ZERO CAL.
When zero calibration value is out
of the calibration range.
When zero calibration value is
within the calibration range.
○
SPAN CAL.
When span calibration value is
out of the calibration range.
When span calibration value is
within the calibration range.
○
COD
HIGH
The status “measurement value >
MAX ALARM VALUE” continues
longer than the specified alarm
time.
The status “measurement value
MAX ALARM VALUE” continues
longer than the specified alarm
time.
△
LOW
The status “measurement value <
MIN ALARM VALUE” continues
longer than the specified alarm
time.
The status “measurement value
MIN ALARM VALUE” continues
longer than the specified alarm
time.
△
TURB
(turbidity)
HIGH
The status “measurement value >
MAX ALARM VALUE” continues
longer than the specified alarm
time.
The status “measurement value
MAX ALARM VALUE continues
while exceeding the specified
alarm time.
△
LOW
The status “measurement value <
MIN ALARM VALUE” continues
longer than the specified alarm
time.
The status “measurement value
MIN ALARM VALUE” continues
longer than the specified alarm
time.
△
SPAN CAL.
When span calibration value is
out of the calibration range.
When span calibration value is
within the calibration range.
○
*1 SENSOR COMM.ERR.: Communication error between analyzer unit substrate and control unit substrate
*2 PIO COMM.ERR.:
Communication error between control unit CPU substrate and input/output substrate
*3 Alarm release
Forced stop by pressing [DELETE] on the ALARM screen.
○
: Forced stop is possible.
△
: Though forced stop is possible, the alarm recurs because the cause has not
been resolved.
