Hitachi 902 - ISE Data Alarm Check

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(6) ISE Data Alarm Check
Alarm Name Alarm Check Method
ADC abnormal The result of ADC is abnormal. (Checked in ADC task)
Sample short Sample volume is inadequate. (Checked in control task)
Noise error This alarm is issued when a difference between maximum and minimum
potential values at three out of five measurement points in each test is within
the following range (on internal standard and sample).
Na : 0.7 mVFIV (2) - FIV (4)
K : 1.0 mVFIV (2) - FIV (4)
Cl : 0.8 mVFIV (2) - FIV (4)
Level error This alarm is issued when a difference between maximum and minimum
potential values at three out of five measurement points in each test is within
the following range (on internal standard).
Na : -90.0 mV ≤ EAV ≤ -10 mV ⇒ OK
K : -90.0 mV ≤ EAV ≤ -10 mV ⇒ OK
Cl : 100.0 mV ≤ EAV ≤ 180.0 mV ⇒ OK
Sample value abnormal The sample concentration (C(S)) is within the following range.
Na : C (S) < 10 mEq/L or C (S) > 250 mEq/L
K : C (S) < 1 mEq/L or C (S) > 100 mEq/L
Cl : C (S) < 10 mEq/L or C (S) > 250 mEq/L
Calculated disabled Due to zero division, log-X, etc.