7
C861 • C862 • C863 • C864 • C868
C861 • C862 • C863 • C864 • C868
8
Ion measurement
1.
Select the desired input, e.g. [CH.1], by pressing
MODE
. The display will imme-
diately show the measured value according to the previous calibration. Should
you want to recalibrate, press
CAL
.
2.
Select two proper standards from the values in memory, covering your future
measuring range, and press
CAL
.
3.
Select [CALIBRATE] and press
CAL
.
4.
After rinsing the electrodes with distilled water, immerse them in the first
standard solution. Select the first calibration value and press
CAL
when read-
ings are stable. Go on in the same way with the second standard solution.
5.
Decide whether a blank correction should be carried out or not. Follow the
instructions on the screen. After rinsing the electrodes with distilled water,
immerse them in a blank solution. When readings are stable press
CAL
.
6.
Rinse the electrodes with distilled water, immerse them in the samples, and
read the concentration on the display.
• Maintenance: we refer to the manual supplied with the ion specific elec-
trodes.
GLP
1.
Select the desired range by pressing
MODE
and then press
CAL
.
2.
Select [GLP] and press
CAL
.
3.
Select [SHOW REPORT] and press
CAL
. Browse with
çèéê
to show a com-
plete calibration report. Press
STORE
to send the report to a computer.
pH/mV/Conductivity/°C-meter C861
--------------------------------
Date
: 15/05/2003
Time
: 11:32:04
Version
: 1.0
Input
: CH.1
SETTINGS
--------
Identification No
: 003
Password
: OFF
pH/°C correction
: OFF
Temp. probe
: ---
Manual temp. (°C) : 22.6
pH CALIBRATION
--------------
Date
: 15/05/2003
Time
: 11:20:06
Eo (mV) : 0
Buffer 4.008/6.865
Slope (%)
: 98.4
Zero point (pH) : 6.871
Buffer 6.865/9.180
Slope (%)
: 98.2
Zero point (pH) : 6.879
AVERAGE VALUES
--------------
Slope (%)
: 98.3
Zero point (pH) : 6.875
Response time (s)
: 11
Temperature (°C) : 22.6
STATISTICS
----------
Slope (%)
: +0.4
Zero point (pH) : +0.002
Response time (s)
: -1
Calibration reminder
1.
Select the desired range by pressing
MODE
and then press
CAL
.
2.
Select [INTERVAL] and press
CAL
.
3.
Select the desired time interval between each automatic warning for a new
calibration of the electrodes and press
CAL
.
(C863, C864)
Содержание C861
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