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Ion measurement
(C933)
GLP
Calibration reminder
7
1. Select [ION] by pressing MODE. The display will immediately show the meas-
ured value according to the previous calibration. Should you want to recali-
brate, 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.
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 çè é ê to show a com-
plete calibration report. Press PRINT to print the report.
pH/mV/Conductivity/°C-meter C931
--------------------------------
Date
Time
Version
SETTINGS
--------
Identification No
Password
pH/°C correction
Temp. probe
Manual temp.
pH CALIBRATION
--------------
Date
Time
Eo
Buffer 4.008/6.865
Slope
Zero point
Buffer 6.865/9.180
Slope
Zero point
AVERAGE VALUES
--------------
Slope
Zero point
Response time
Temperature
STATISTICS
----------
Slope
Zero point
Response time
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.
: 15/05/2003
: 11:32:04
: 1.0
: 003
: OFF
: OFF
: ---
(°C)
: 22.6
: 15/05/2003
: 11:20:06
(mV)
: 0
(%)
: 98.4
(pH)
: 6.871
(%)
: 98.2
(pH)
: 6.879
(%)
: 98.3
(pH)
: 6.875
(s)
: 11
(°C)
: 22.6
(%)
: +0.4
(pH)
: +0.002
(s)
: -1
C931 • C932 • C933
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