YSI 910 COD Colorimeter - Manual (Page 10)

10
Calibration Mode
4 user calibration (cal)
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 are aligned.
Press the [ZERO/TEST] key.
The “Range“ symbol flashes for approx. 8 seconds.
The display shows the following in alternating mode:
Perform measurement with a standard of known concentration as described.
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).
note:
The instrument calibration in the range MR is automatically taken also for
Hr.
user calibration (Display in calibration mode)
factory calibration (Display in calibration mode)
CAL
cAL
Time Cal
Store Date
4
Cal
CAL
LR
0.0.0
CAL
Zero
Test
Zero
Test
RANGE
RANGE
CAL
RESULT + x
CAL
Mode
On
Off
Zero
Test
: :
RESULT