Calibration Mode
GB
Store
Date
Cal
4
Time
Cal
cAL
CAL
CAL
O3
Zero
Test
O3
0.0.0
CAL
Zero
Test
O3
RESULT
CAL
Mode
Zero
Test
CAL
RESULT + x
On
Off
:
:
32
User calibration
4
Note:
user calibration (Display in calibration mode)
factory calibration (Display in calibration mode)
After confirming the selection with the [MODE] key the instrument
will show CAL / O3.
Fill a clean vial with the standard up to the 10 ml mark, screw the
cap on and place the vial in the sample chamber making sure that
the
marks are aligned.
Press the [ZERO/TEST] key.
The method symbol flashes for approx. 8 seconds.
The display shows the following in alternating mode:
Perform calibration with a standard of known concentration (see
"Operation").
Press the [ZERO/TEST] key.
The method symbol flashes for approx. 3 seconds.
The result is shown in the display, alternating with CAL.
If the reading corresponds with the value of the calibration standard
(within the specified tolerance), exit calibration mode by pressing the
[ON/OFF] key.
Changing the displayed value:
Pressing the [MODE] key once increases the displayed value by 1 digit.
Pressing the [ZERO/TEST] key once decreases the displayed value by
1 digit.
Press the corresponding key until the reading equals the value of the
calibration standard.
By pressing the [ON/OFF] key, the new correction factor is calculated
and stored in the user calibration software.
Confirmation of calibration (3 seconds).
AL200_4 03/2018