20
Thermo Scientific Orion AQUAfast AQ3010 Turbidity Meter User Guide
1 . Make sure the meter is sitting on a flat and level surface and is in the
measurement mode . The display will show the last measured value or
“STbY” .
2 . Place the sample vial in the sample well .
3 . Cover the vial using the light shield cover, if necessary . For many
environments this is not required . The vial cap seals the sample well .
4 . Press the
READ/ENTER
key and hold it . See
Figure 14
.
5 . Wait for the reading to stabilize before rotating the sample vial . You
can rotate the sample vial for indexing purpose . See the
Indexing a
Vial
section for more information .
Note:
During continuous measurement, the display is updated every
2 seconds . The displayed reading may not be the actual turbidity
value . For accurate measurement, use the single-shot measurement .
6 . Once you release the
READ/ENTER
key, the meter automatically
performs a single-shot measurement .
• After a measurement is completed and the display is updated, a 4
second recovery time occurs before the meter can perform another
function . If any key is pressed during this time, the meter will
perform the corresponding action at the end of the recovery period .
• When performing a measurement, if the meter detects stray light
exceeding the amount equivalent to 0 .02 NTU in the low range, the
measurement is immediately aborted and an error message [ERR 8] is
displayed . Ensure that the vial sits properly into the sample well and
the light shield cover is on . Press the ENTER/READ key to retake
the measurement .
Figure 14
Continuous
Measurement
Continuous
Measurement
Notes
For Continuous
Measurement
Reading flashes and
updates every 2 seconds
SAMPLE
Unknown
NTU
Place sample
vial into the
sample well
NTU
R EA D
EN TER
Measurement Mode
Press key and hold
and cover with
the light shield
cap
