Electrolyte Compensable Range Check; Calibration Check; Std Check; Handling Of Calibration Result With Comment - Hitachi 902 Service Manual

(a)

Electrolyte compensable range check.

When the ratio of change in calibrator concentration or slope value from the
previous one is larger than the input value, comment CALIB is printed. Unless
check is desired, input 200%.
(b)

Calibration check

When calibration factor K has changed by 20% or more from the previous value,
comment CALIB is printed (check value is fixed at 20%).
(c)

STD check

If any of the following alarms occurs on calibration data, comment STD? is printed.
• ADC abnormal (ADC?)
• Cell blank abnormal (CELL?)
• Sample short (SAMPL)
• Reagent short (REAGN)
(S1ABS?)
• Absorbance over (ABS!)
• Prozone error (xxxxxP)
(d) Measure to be taken on printout of comment
When comment STD? or SENS is indicated, calibration curve will not be updated.
Therefore, recalibration is necessary. In case of CALIB or SD!, sample
measurement is allowed after making sure the result of calibration is normal. In this
case, however, the result of calibration will not be saved automatically onto the
floppy disk. Before turning off power supply, parameters should be recorded on the
maintenance screen.
Table 2-1 Handling of Calibration Result with Comment
Printed
Comment
STD? Not updated
(previous result remains)
SENS Not updated
(previous result remains)
CALIB Updated
(to new result)
SD ! Updated
(to new result)
Calibration Result
(display on screen)
Calibration curve generation disabled
(code 70-1 to 49)
Standard solution sensitivity abnormal
(code 73-1 to46)
Calibration abnormal
(code 70-1 to 49)
Calibration SD abnormal
(code 72-1 to 46)
2 - 54
• Reaction limit over (LIMT0, 1, 2)
• Reaction linearity abnormal (LIN. or LIN.8)
• Duplicate error (DUP)
• Standard 1 absorbance abnormal
• Calculation disabled (???)
Alarm Name on
Operation Monitor Screen
Automatic Saving onto
Floppy Disk
The reagent blank (S1ABS)
and calibration factor (K) of
the relevant test are not
saved automatically onto
floppy disk.