2 - 14
Alarm
Control
No.
Alarm Category
Sub-
code
Level Description Remedy
3551 to
3588
SENSITIV-
ITY?
86 1 to 36
(ch.)
WARNING In linear (with 2 to 6 points) or
nonlinear calibration, a
difference between the mean
STD (1) absorbance and the
mean STD (N)
(Note 7 )
absorbance is smaller than
the sensitivity limit (input
value).
NOTES :
7.N:=2 for linear
(2points)
=2 to 6 for nonlinear
and linear (3 to 6
points)
(Span point input value)
8.If either STD (1) or STD
(N) alone has been
measured, the
absorbance value of the
other STD is checked
using the previous data.
The result of
calibration is not
updated nor saved
onto FD.
4151 to
4153
ISE LEVEL 90 1 WARNING The mean potential value
(EAV) at three out of five
measurement points of
internal standard solution is
outside the following range.
(Internal standard)
Na:-90.0mV ≤ EAV ≤-10mV
⇒OK
(1)Replace STD
and carry out
calibration.
(2)Replace the Na
electrode.
90 2 WARNING K:-90.0mV ≤ EAV ≤ -10mV
⇒OK
(1)Same as above
(2)Replace the K
electrode.
90 3 WARNING Cl:100.0mV ≤ EAV ≤
180.0mV
⇒OK
(1)Same as above
(2)Replace the Cl
electrode.
4161 to
4163
ISE NOISE 91 1 WARNING A difference (FIV) between
maximum and minimum
potential values at three of
five measurement points of
internal standard solution is
outside the following range.
(Internal standard, sample)
Na:0.7mV < FIV(2) - FIV(4)
Carry out reagent
priming and check
for bubble
formation.
91 2 WARNING K :1.0mV < FIV(2) - FIV(4) Same as above
91 3 WARNING Cl:0.8mV < FIV(2) - FIV(4) Same as above
(cont’d)
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