Calibration Interval - wtw pH 3310 IDS Operating Manual

Settings
Setting the calibra-
tion interval
44
No. Buffer set *
21 Reagecon 20 *
22 Reagecon 25 *
23 Riedel-de Haen *
24 USABlueBook *
25 YSI *
* Brand names or trade names are trademarks of their respective owners pro-
tected by law.
The buffers are selected in the menu, pH / <ENTER> / Calibration
/ Buffer (see section 7.1.1 S
41).

7.1.3 Calibration interval

The calibration evaluation is displayed as a sensor symbol.
After the QSC function has been enabled the sensor symbol is replaced by the
QSC scale (see section 5.2.8 QSC
35).
After the specified calibration interval has expired the sensor symbol or the
QSC scale flashes. It is still possible to measure.
To ensure the high measuring accuracy of the measuring system,
calibrate after the calibration interval has expired.
The calibration interval is set to 7 days in the factory.
pH values
2.000
4.000
7.000
10.000
13.000
2.000
4.000
7.000
10.000
13.000
2.000
4.000
7.000
10.000
4.000
7.000
10.000
4.000
7.000
10.000
H
ETTINGS FOR P MEASUREMENTS
(
FUNCTION SENSOR QUALITY CONTROL
pH 3310 IDS
at
20°C
25 °C
20°C
25 °C
25 °C
, page
), page
ba77035e01 02/2014