9
EC CALIBRATION
Theoretical cal.
C=1.000 cm-1
Continue...
Calibration
Calibration frequency
Automatic warning.
1 day
00
hours
Type of calibration
Cal. Frequency
Display :No
Calibration
Type of calibration
Cal. Frequency
Display :No
Calibration
Molar standards
Demal standards
NaCl standards
To a X value
Data introduction
Calibration
Molar standards
Demal standards
NaCl standards
To a X value
Data introduction
Calibration
Molar standards
Demal standards
NaCl standards
To a X value
Data introduction
Calibration
Demal standards
NaCl standards
To a X value
Data introduction
Theoretical cal.
Calibration
EC CALIBRATION
Data introduction
C=
1
.000 cm-1
Molar standards
Use standard 147 uS
Continue...
EC CALIBRATION
Molar standards
Demal standards
NaCl standards
To a X value
Data introduction
Calibration
Demal standards
Use
standard 12.85 uS
Continue...
EC CALIBRATION
Molar standards
Demal standards
NaCl standards
To a X value
Data introduction
Calibration
NaCl standard
Use
Standard 1014.90 uS
Continue...
EC CALIBRATION
To a X value
Use specific standard
Continue...
EC CALIBRATION
21,4
˚
C
* * *
uS/cm @25
˚
C
00:01
EC CALIBRATION
21,4
˚
C
* * *
uS/cm @25
˚
C
00:07
EC CALIBRATION
21,4
˚
C
83.1
uS/cm @25
˚
C
00:05
EC CALIBRATION
Adjust value
83.1
uS/cm @25
˚
C
00:15
EC CALIBRATION
Adjust value
85.0
uS/cm @25
˚
C
00:15
EC CALIBRATION
10-04-2010 17:15
EC CALIBRATION
Calibrate EC
...
Start calibration
Molar standards
ENGLISH
4.6. Other options for calibration
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 at 25 ˚C (77 ˚F)
Calibration to X value
Manual re-adjustment of the measured conductivity at any value
of the scale.
The EC readjustment is equivalent to calibration with only one
buffer.
Cell constant introduction
Manual introduction of the cell constant. For example, when the
cell has been calibrated previously in calibration laboratory.
Theoretical calibration
Selecting “theoretical calibration” the calibration data of the cell
in use are replaced by C=1.000 cm
-1
.
This step is prior to the obtention of a calibration certificate.
Calibration frequency
Select between 1 and 99 days.
The instrument by default is programmed for calibration every 15
days and indicates the remaining time to the new calibration.
Selecting 0 h the automatic re-calibration warning is deacti-
vated.
Note:
Select “Display “ for simultaneous display of EC and
resistivity.
Important note:
Once the calibration is re-programmed, it will be performed with
the new programming.
4. Operation
The instrument goes
to main menu.
Start of calibration with the selected
standards.
Start calibration
The instrument goes
to the option “EC
CALIBRATION”.
Accept with
The instrument goes
in MEASURE menu.
The theoretical cali-
bration will be used.
Modify the data with
Accept with
The instrument goes to
MEASURE menu. The
introduced calibration
data will be used.
EC71 HACH LANGE 7010.indd ANG:9
EC71 HACH LANGE 7010.indd ANG:9
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8/7/10 16:14:50
