Calibration Procedure - Hach sensION+ MM340 Manuel D'utilisation

Calibration types
Different calibration types can be selected.
1. From the main menu use the
2. Use the to enter the calibration menu.
3. Use the or to select Calibration type.
Option Description
Technical buffers pH 2.00, 4.01, 7.00, 9.21 and 10.90 at 25 °C (77 °F)
DIN19266 Buffers pH 1.679, 4.006, 6.865, 7.000, 9.180, 10.012 and
12.454
User Buffers Selected when the technical or DIN19266 buffers are
not used. Refer to
19267)
sets at varying temperatures.
Calibration to a X To adjust manually any scale value of the measured
value pH.
Data introduction Manual probe constant introduction.
Theoretical The probe calibration data is replaced at 25 °C (77 °F).
calibration

Calibration procedure

This procedure is for general use with liquid calibration solutions. Refer to
the documents that are included with each probe for additional information.
Note: Solutions should be stirred during calibration. For more information about the
stirring settings, refer to Change the stirring settings
1. Pour the buffers or calibration solutions into the labeled calibration
beakers.
2. From the main menu use the
CALIBRATION parameter. Confirm.
3. If required select the Operator ID (1 to 10) and confirm.
4. Rinse the probe with deionized water and put the probe into the first
calibration beaker. Be sure that there are no air bubbles in the
membrane.
or to select CALIBRATION. Confirm.
Technical buffer solutions (DIN
on page 17 for pH values of specific buffer
on page 11.
or and and to select the
5. Push to Start calibration.
6. Push to measure the first calibration solution.
The next calibration solution is shown.
7. Rinse the probe with deionized water and put the probe into the first
calibration beaker. Be sure that there are no air bubbles in the
membrane.
8. Push to measure the second calibration solution.
The next calibration solution is shown.
9. Rinse the probe with deionized water and put the probe into the first
calibration beaker. Be sure that there are no air bubbles in the
membrane.
10. Push to measure the third calibration solution.
When the calibration is good, the display briefly shows Calibration OK
and then returns to the main menu.
Note: When a printer is connected the print menu opens and the result can be
printed.
View the calibration data
Data from the most recent calibration can be shown.
1. From the main menu use the
Confirm.
2. Select Display data.
3. Select Calibration data and confirm with
is shown.
• pH-the slope and offset values are shown alternating with the
deviation (in %) and calibration temperature.
• ORP-the measured mV value and calibration temperature are
shown.
• Conductivity-the cell constant and calibration temperature for each
standard are shown.
Set the calibration reminder
The calibration reminder can be set between 0 to 23 hours or 1-7 days
(default 0 days). The display shows the remaining time to the new
calibration.
Note: When 0 days is selected, the calibration reminder is turned off.
or to select DATA LOGGER.
. The last calibration data
English 9