Hach-Lange 2100Q and 2100Qis Basic User Manual - Manual (Page 10)

Advanced operation
Calibrate the turbidimeter with StablCal ® Standards
Note: For best accuracy use the same sample cell or four matched sample cells for
all readings during calibration. Insert the sample cell in the instrument cell
compartment so the diamond or orientation mark aligns with the raised orientation
mark in front of the cell compartment.
1. Push the
CALIBRATION key to
enter the Calibration
mode. Follow the
instructions on the
display.
Note: Gently invert
each standard before
inserting the standard. 2. Insert the 20 NTU
StablCal Standard and
close the lid.
Note: The standard to
be inserted is bordered. 3. Push Read. The
display shows
Stabilizing and then
shows the result.
4. Repeat Step 2 and
3 with the 100 NTU and
800 NTU StablCal
Standard.
Note: Push Done to
complete a 2 point
calibration. 5. Push Done to
review the calibration
details. 6. Push Store to save
the results.
After a calibration is
complete, the meter
automatically goes into
the Verify Cal mode.
Additional information is
available on the
manufacturer's website.
Reading modes
1. Push the UP or DOWN key to enter the Reading Options menu.
2. Select Reading Mode to select one of the following options:
Option Description
Normal
(Default
setting) The normal mode reads and averages three readings. The
result is shown after the reading.
10 English