Calibration Settings; Calibration Procedure - Hach sensION+EC71 Manual Del Usuario

3. Select Deactivated if no printer or PC is connected and confirm. Refer
to Select the data output on page 10 for more information about Data
Output.
Standard operations
Calibration
W A R N I N G
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the
the personal protective equipment appropriate to the chemicals that are handled.
Refer to the current material safety data sheets (MSDS) for safety protocols.

Calibration settings

The calibration settings contain Calibration type, Calibration frequency
and Display options.
1. From the main menu use the
2. Use the to enter the calibration menu.
3. Use the or to select the following options:
Option Description
Calibration Calibration type—select Molar Standards, Demal
type Standards, NaCl Standards, Calibration to a X value, data
introduction or Theoretical calibration. Refer to
types for more information.
Cal. frequency Calibration reminder—can be set between 0–99 days
(default 15 days). The display shows the remaining time to
the new calibration. Refer to
on page 9 for more information.
Display Ω Display Resistivity—select YES to show simultaneously
conductivity and resistivity.
Calibration types
Different calibration types can be selected.
1. From the main menu use the
2. Use the to enter the calibration menu.
8 English
or to select CALIBRATION. Confirm.
Calibration
Set the calibration reminder
or to select CALIBRATION. Confirm.
3. Use the or to select Calibration type.
Option Description
Molar Standards 147 µS/cm, 1413 µS/cm, 12.88 mS/cm and 111.8
mS/cm at 25 °C (77 °F)
Demal Standards 1049 µS/cm, 12.85 mS/cm and 111.31 mS/cm at 25
°C (77 °F)
NaCl Standards 1014.9 µS/cm 25 °C (77 °F)
Calibration to a X To adjust manually any scale value of the measured
value conductivity.
Data introduction Manual probe constant introduction.
Theoretical The probe calibration data is replaced with C=1.000
-1
calibration cm

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 probe
measuring chamber.
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 probe
measuring chamber.
8. Push to measure the second calibration solution.
.
on page 10.
or and and to select the