10
21,4
˚
C
* * *
uS/cm @25
˚
C
Sample 1 00:01
...
Start meas. EC
By stability
MEASURING
by stability
21,4
˚
C
825
uS/cm @25
˚
C
Sample 1 00:01
MEASURING
(continuous)
21,4
˚
C
830
uS/cm @25
˚
C
Stirring
30%
Sample 1 00:05
MEASURING
(continuous)
21,4
˚
C
* * *
uS/cm @25
˚
C
Stirring
30%
Sample 1 00:05
MEASURING
by stability
21,4
˚
C
831
uS/cm @25
˚
C
Sample 1 00:25
MEASURING
(continuous)
21,4
˚
C
* * *
uS/cm @25
˚
C
Sample 1 00:10
MEASURING
by stability
21,4
˚
C
1215
uS/cm @25
˚
C
Sample 1 00:25
Next sample
STABLE MEASUREMENT
21,4
˚
C
831
uS/cm @25
˚
C
Sample 1 00:28
Next sample
HOLD
10-04-2010 17:45
EC MEASURE
New calibration
in 15 days
21
˚
C
* * *
uS/cm @25
˚
C
Sample 1 00:01
MEASURING
by stability
21
˚
C
825
uS/cm @25
˚
C
Sample 1 00:01
MEASURING
(continuous)
21
˚
C
* * *
uS/cm @25
˚
C
Sample 1 00:01
MEASURING
by stability
21
˚
C
825
uS/cm @25
˚
C
Sample 1 00:01
MEASURING
(continuous)
19
˚
C
* * *
uS/cm @25
˚
C
Sample 1 00:05
MEASURING
by stability
19
˚
C
825
uS/cm @25
˚
C
Sample 1 00:05
MEASURING
(continuous)
19
˚
C
* * *
uS/cm @25
˚
C
Sample 1 00:10
MEASURING
by stability
19
˚
C
825
uS/cm @25
˚
C
Sample 1 00:25
MEASURING
(continuous)
21,4
˚
C
830
uS/cm @25
˚
C
Stirring
30%
Sample 1 00:28
MEASURING
(continuous)
21,4
˚
C
* * *
uS/cm @25
˚
C
Stirring
30%
Sample 1 00:25
MEASURING
by stability
...
Start measurement
By stability
Sample:
_
by STABILITY
21,4
˚
C
* * *
uS/cm @25
˚
C
Sample 1 00:01
MEASURE
by stability
21,4
˚
C
825
uS/cm @25
˚
C
Sample 1 00:01
MEASURE
(continuous)
10-04-2010 17:45
EC MEASURE
New calibration
in 15 days
4.7. EC measurements
Measurement by stability
This is the default measuring mode for the
sensION
™
+
EC 71
.
Meanwhile the reading is in evolution, it appears on the display
momentary to orient the user. When the cell signal remains invar-
iable during a certain period of time, the reading is fixed on the
display, the reading is stable.
Stability criterion:
1 digit in 6 seconds.
If after 120 seconds the reading is not stable, the instrument
automatically passes in continuous measurement (the measured
value is displayed all the time).
To change measuring parameters see “Measure re-program-
ming”, page 11.
Magnetic stirrer:
the instrument controls automatically the
start/stop of the stirrer.
Continuous measurement
The instrument displays the value obtained by the electrode all
the time. These data can be stored or printed with program-
mable interval of time. To select this type of measurement see
“Re-programming measurement”.
From the standard measuring mode (by stability), pressing twice
the key
the measured value is shown on the display at any
moment but without option for data acquisition.
Measurement by time
The measurement is shown on the display after programmed
time. To select this measuring mode see “Re-programming meas-
urement”.
Manual samples coding
With
sensION
™
+
EC 71
it is possible to introduce specific
code (maximum 15 characters) per each sample using an external
PC key board or bar code. See SYSTEM, page 17.
4. Operation
Pressing twice measure-
ment in continuous.
With connected temperature probe.
Manual introduction of the temperature
Press ESC to quit measurement
etc.
etc.
etc.
etc.
Manual coding: introduce
the code for the sample.
A PC keyboard is required.
To vary stirring speed
Press to re-program
measurement. see page 11.
EC71 HACH LANGE 7010.indd ANG:10
EC71 HACH LANGE 7010.indd ANG:10
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8/7/10 16:14:51