Hach-Lange 2100 AN Laboratory Turbidimeter User Manual - Manual (Page 33)

7. Slowly put 250 mL of
deionized water down
the interior edge of the
inlet reservoir.
Put the CU standard
down the interior edge
of the reservoir to
prevent air bubbles in
the sample. 8. Push ENTER.
The instrument display
counts down from 30 to
0, and then measures
the deionized water and
sets the zero reference
point.
Note: To make
measurements using
the current calibration,
go to step 12. 9. Use the arrow keys
to change the display to
show the value of the
CU standard to be used
for calibration. 10. Slowly put 250 mL
of the CU standard in
the inlet reservoir. 11. Push ENTER.
The instrument display
counts down from 30 to
0, and then measures
the CU standard and
sets the calibration
point. Then, the
measured value is
shown.
The calibration is
complete, go to step 13. 12. Push UNITS/Exit
to go back to
Measurement mode.
13. Slowly put 250 mL
of the sample in the
inlet reservoir. 14. After the sample
flow stops and the
display stabilizes, read
and record the value.
Note: To print or send
(via RS232) a
measurement record,
push PRINT.
English 31