Xylem PH3110 FIELD PH METER - Manual (Page 21)

pH 3110 Operation
21 ba75791e02 11/2008
4.3.1 Calibration interval (Int.C)
The calibration interval reminds you to calibrate regularly. When the
adjusted calibration interval (Int.C) has expired, the sensor symbol
flashes. It is still possible to measure.
Note
To ensure the high measuring accuracy of the measuring system,
calibrate after the calibration interval has expired.
Setting the calibration
interval
The calibration interval (Int.C) is set to 7 days (d7) in the factory.
You can change the interval (1 ... 999 days):
5 Set the buffer set to be used for calibration as necessary.
1 Open the menu for measurement settings with <M
_
>.
2 Confirm all settings with <ENTER> until Int.C is displayed.
3 Set the calibration interval with <
▲><▼>.
4 Confirm the setting with <ENTER>.
8 D
C T N 1
pH
Time