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(cont’d)
No. Data Alarm Printer S. I/F Description Remedy
Level error LEVEL L (ISE)
This error is indicated if the
mean potential is outside the
following range at three of the
five measuring points for each
test (on internal standard).
Na: -90.0mV ≤ EAV ≤ -10mV
⇒ OK
K : -90.0mV ≤ EAV ≤ -10mV
⇒ OK
Cl : 100.0mV ≤ EAV ≤
180.0mV ⇒ OK
•Set reagent and perform
ISE priming (with
reference electrode
solution) twice.
•Replace the electrode
and perform ISE
priming (with reference
electrode solution)
once.
•Retighten the nipple.
Or after replacing the
rubber packing, perform
ISE priming (with
reference electrode
solution) once.
•Confirm the proper
combination of tube and
reagent.
•Plug in the cord
properly.
Slope abnormal SLOPE? E (ISE)
(1) The slope level for display
is within the following
range.
Na, K : SLOPE < 45.0mV,
Cl : SLOPE > -35.0mV
(2) Electrode response is
degraded.
(Carry-over rate is as
shown below.)
Na : 0.232 < A
K : 0.160 < A
Cl : 0.490 < A
•Replace the electrode.
•Remove the probe and
correct clogging.
•Set properly.
•Confirm the proper
combination of tube and
reagent.
Electrode
preparation
PREP. R Upon calibration, the slope
value is within the following
range.
Na, K : 45.0mV ≤ Slope value
≤ 49.9mV or
68.1mV ≤ Slope value
Cl : -39.9mV ≤ Slope value
≤ -35.0mV or
-68.1mV ≤ Slope value
•Make sure that the
standard solution and
reagent are set properly.
•Make sure that the
standard solution is free
from concentration or
deterioration.
•Make sure that the
electrodes (Na, K, Cl)
are within their
guaranteed life.
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