Hitachi 902 - Page 56

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(cont’d)
No. Data Alarm Printer S. I/F Description Remedy
Sensitivity error SENS Y (Photometry assay)
Sensitivity check is carried out
only for linear (2 to 6-point),
non-linear or isozyme P
calibration.
This error is indicated if the
difference in mean absorbance
between STD (1) and STD (N)
is smaller than SENSITIVITY
LIMIT (input value).
N: Linear (2-point)/
isozyme P calibration ..... 2
Non-linear/linear (3 to 6-
point) calibration ..... 2 to 6
(input value for SPAN
POINT)
Note, however, that N = 2
when CALIB. POINTS = 2 in
non-linear LOGIT-LOG
(3P)/(4P) calibration.
For the mean absorbance of
STD (1) in span calibration, the
following data is used.
Linear ..... Previous S1 ABS
Non-linear ..... Previously
updated mean
absorbance
Sensitivity check is not made
in R.B. calibration.
• The parameters on the
screen and FD are not
updated.
• Set the standard
solutions and reagent
properly.
• Prepare the standard
solutions newly.
• Check the sample
syringe for leakage,
clogging, etc.
• Unless check is
desired, input 0 for
"sensitivity limit
absorbance" on the
parameter registration
menu.
SD error SD? G (Photometry assay)
This error is indicated upon
completion of non-linear
calibration or if the SD value in
linear (multi-point) calibration is
larger than SD LIMIT (input
value).
• Set in correct
concentration series.
• Replace the seal piece
of pipettor.
• Check fastening of
joints.
• Unless check is
desired, input 999.9
for "SD limit
absorbance" on the
parameter registration
menu.