15
6. Operation
ENGLISH
6.4.3. Two- and three-point calibration
Follow the diagram below.
The equipment will repeat the
process described for the first
standard solution with the second
and third.
Dip the sensor into the tube several times to homogenize the
liquid. Do not hold it by the tube to avoid heating of the stan-
dard solution.
Note:
if the measuring instrument is not used for 5 minutes, it
shuts off automatically.
If errors occur during calibration, an error message will appear
on screen (see pg. 23).
When you switch standards, rinse the sensor with deionized
water.
(1)
Press
or
to go to the required option.
Important:
before beginning calibration, rinse the
sensor with plenty of deionized water, followed by
the first conductivity standard.
Screw the
sensor
to the 1st tube
Screw the
sensor to the
2nd tube
To exit calibration
Two-point calibration
To exit calibra-
tion.
One-point cali-
bration
(1)
MM150 HACH 0710.indd ANG:15
MM150 HACH 0710.indd ANG:15
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