9.1
Component Validation
4.
Checking the span
Content
of
inspection
This test checks whether the refractive index value
is
accurately
measured and displayed by testing the standard sample whose
index is already
known.
The test requires the following reagents and equipment.
Distilled water
Standard sample (Glycerin solution)
Syringe
Data processor
Refer to the section
8.2
Span Adjustment.
Test procedure
(1)
Set the parameters
of
the detector
as
follows.
CELL
TEMP:
40
polarity:
+
mode: A (When performing mode A span adjustment)
Set the detector
so
that the plot full scale of the data processor
becomes
128
x
10%.
AUX RANGE of the detector
2
(or
4)
A?TEN of the Chromatopac:
7
(or
9)
Use the syringe and adapter to deliver distilled water to the
(2)
(3)
-
inlet port. During delivery,
press
the and
[
R
flow)
keys
to flow the water to the reference flow lines.
After the inside of the sample
celvreference cell is replaced
with distilled water,
turn
Mow
OFF
by pressing
the
@
and
[R)
keys again.
When the baseline is stabilized, press the
@
and
[G)
keys to perform optical balance adjustment.
Press the
@
key and record the baseline level when the
cell is filled with distilled water.
Inject the standard solution from
the
inlet port. The baseline
moves up ward by
80%
of
the
full scale.
(4)
(5)
(6)
(7)
Record the baseline level when the cell is filled with
standard solution. When
the
Chromatopac is used, press the
[
P
L
O
T
J
key to record the baseline.
(8)
Read the difference of the baseline level between the
distilled water and the standard solution, and convert the
value into
RI
unit.
9
-
4
-
RID-1OA
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