18
9. Zero-adjustment
● What is zero-adjustment?
If errors occur in the measurement results due to light source consumption or other
causes, read the absorbance obtained from reflection on the zero-adjustment plate.
The measurement result will be stabilized by setting the absorbance as zero.
Make sure to perform this operation when making calibration curve or in the regular
measurement as well.
Also, the zero-adjustment is required after the power is turned on.
If performing zero-adjustment without cycling the power, operate the following:
①
Attach the zero-adjustment plate.
Open the light shielding cover, and set the zero-adjustment plate onto the rotation table of the
unit. Then, close the cover.
②
Perform zero-adjustment.
Press the [ZERO] key. The zero-adjustment screen will be displayed.
Z E R O
▶
X 1
0 . 0 0 0 1
X 2
− 0 . 0 0 0 1
X 3
0 . 0 0 0 2
X 4
0 . 0 0 0 3
X 5
− 0 . 0 0 1 2
X 6
0 . 0 0 0 8
Press the [ENTER] key. The zero-adjustment will be started.
When the zero-adjustment is completed, the initial screen will be restored automatically.
In the regular measurement mode, the previous measured value will be displayed.
0 1
F L O U R
1
…
M O I S T U R E
2
…
P R O T E I N
1 3. 3
8. 8
3
…
C O M P 3
4
…
C O M P 4
1. 4
7 6. 1
* The zero-adjustment is to calibrate the absorbance obtained by measuring the zero-adjustment plate to
zero. It does not make the composition measurement value zero.
