Calibration Mode; User Calibration - Lovibond CheckitDirect CSB Instrucciones

Calibration Mode

GB
cAL
CAL
CAL
Lr
Zero
Test
RANGE
0.0.0
CAL
Zero
Test
RANGE
RESULT
CAL
Mode
Zero
Test
CAL
RESULT + x
On
Off
: :
CheckitDirect COD_3b 05/2011

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/Lr.
Scroll through ranges using the [MODE] key.
Place the blank in the adapter making sure that the marks ı are aligned.
Press the [ZERO/TEST] key.
The "Range" 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 "Range" 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).
Recommended calibration values
LR: 100 mg/l O
2
MR: 500 mg/l O
2
HR: The instrument calibration in the range MR
is automatically taken also for HR.
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