3.
Select Deactivated if no printer or PC is connected and confirm. Refer
to
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 or to select CALIBRATION. Confirm.
2.
Use the to enter the calibration menu.
3.
Use the or to select the following options:
Option
Description
Calibration
type
Calibration type—select Molar Standards, Demal
Standards, NaCl Standards, Calibration to a X value, data
introduction or Theoretical calibration. Refer to
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 or to select CALIBRATION. Confirm.
2.
Use the to enter the calibration menu.
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
value
To adjust manually any scale value of the measured
conductivity.
Data introduction
Manual probe constant introduction.
Theoretical
calibration
The probe calibration data is replaced with C=1.000
cm
-1
.
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
1.
Pour the buffers or calibration solutions into the labeled calibration
beakers.
2.
From the main menu use the or and and to select 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.
8
English
Содержание sensION+ EC71
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