Calibration Interval; Settings For Orp Measurements - Xylem WTW Multi 3320 Operating Manual

Multi 3320
Setting the calibra-
tion interval
ba77053e04 07/2018

10.1.3 Calibration interval

The calibration evaluation is displayed as a sensor symbol.
The sensor symbol flashes after the adjusted calibration interval has expired. 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.
You can change the interval (1 ... 999 days):
1. Open the menu for measurement settings with <ENTER>.
2. In the Calibration / Calibration interval menu, set the calibration interval
with <>< >.
3. Confirm the setting with <ENTER>.
4. Quit the menu with <M>.

10.1.4 Settings for ORP measurements

The settings for ORP measurements are made in the menu for calibration and
measurement settings of the pH/ORP measurement. To open the settings, dis-
play the required measured parameter in the measured value display and
press the <ENTER>key. After completing the settings, switch to the measured
value display with <M>.
In the following table, only those settings are listed that influence the ORP mea-
surement.
Default settings are printed in bold.
Menu item
Man. temperature
Resolution mV
Reset
Possible Explanation
setting
-25 ... +25 ... Entry of the manually determined
+130 °C temperature. For measurements
without temperature sensor only.
0.1 Resolution of the mV display
1
- Resets all sensor settings to the
delivery condition (see section
10.3.1 R
MENT SETTINGS
Settings
ESETTING THE MEASURE
, page 72).
-
61