11
Thermo Scientific Orion AQUAfast AQ3010 Turbidity Meter User Guide
Note:
Before switching on the AQ3010 turbidity meter, a sample vial
must be placed in the sample well . You can use any of the calibration
standards for this purpose . If a sample vial is not placed in the sample
well, the turbidity meter will display the Err 8 error message . To clear the
error message, power off the meter ., insert a sample vial into the sample
well and power on the meter .
1 . Place the AQ3010 turbidity meter on a flat and level surface .
2 . Press the
ON/OFF
key to turn on the meter . The meter goes to
measurement mode after the self test power-up sequence .
3 . Select the calibration function of the instrument by pressing the
CAL
key once . The “CAL” annunciator will blink momentarily and
the meter will prompt for the first calibration standard by displaying
“CAL 1 800 NTU” .
4 . Insert the CAL 1 standard (800 NTU) into the sample well, aligning
the mark on the vial with the alignment mark on the meter .
See
Figure 11
.
5 . Press down the vial until it slides fully into the instrument .
6 . Cover the vial using the light shield cover, if necessary . For many
environments this is not required . The vial cap seals the sample well .
7 . Press the
READ/ENTER
key .
8 . The “CAL 1 800 NTU” annunciator will blink for about 12 seconds
while the instrument performs the calibration of CAL 1 point .
When the instrument has completed calibration for this point, it will
prompt you to insert the next calibration standard into the sample
well by displaying “CAL 2 100 NTU” .
9 . Repeat steps 4 through 8 for the CAL 2, CAL 3 and CAL 4
calibration standards .
10 . After you successfully calibrate the CAL 4 standard (0 .02 NTU), the
meter will display “STbY” .
11 . The meter is now ready for measurement .
Figure 6
shows the complete calibration sequence .
Calibration
Procedure
