eutech-instruments waterproof c401 colorimeter Manuel D’Utilisation
Calibration: Cyanuric Acid
C401/301/201/102/101
28
Shake for
1 minute
11. Select another clean vial, un-screw the cap and fill it with 10 ml of the
prepared Cyanuric Acid standard solution (fill up to the line on the
vial).
vial).
12. Select a Cyanuric Acid sachet. Open the sachet and tip the contents
into the vial containing the calibration standard.
13. Replace the cap, ensuring it is screwed on finger tight
to the vial. Shake the vial for approximately one
minute, until the powder has dissolved.
minute, until the powder has dissolved.
Note: a small amount of the powder may remain un-dissolved in the vial, but
this will not affect the measurement.
this will not affect the measurement.
14. Insert the vial fully into the sample well of the meter, whilst again
aligning the ▼ mark on the vial with the ▲ mark on the meter.
15. Wait for two minutes, then press the READ/ENTER key within five
minutes from the time the reagent was added to the vial.
16. The meter will display [--Rd--] whilst the calibration standard is being
measured and then displays [SAVE] to prompt for calibration
acceptance and saving of calibration data.
acceptance and saving of calibration data.
Cyanuric
Acid
Sample
70 ppm
Acid
Sample
70 ppm
ppm
READ
ENTER
CAL
17. Press the READ/ENTER key. The meter will now accepts the
calibration value and momentarily display [HoLD] and CAL
annunciator before returning to the beginning of the calibration as in
step 4.
annunciator before returning to the beginning of the calibration as in
step 4.
18. To continue with another calibration, press the MODE key to select
the desired calibration mode.
19. To exit the calibration mode, press the ZERO key to return to the
measurement mode.
CAL
MODE
READ
ENTER
Press Mode to
select another
calibration test
ZERO
Press ZERO to
return to
measurement
measurement
mode
CAL