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Macro 900 Operation Manual
V3
© 2013 Palintest Ltd.
www.palintest.com
Page 45 of 147
be displayed.
Calibration
Æ
MacroCal
DO 100%
Full Cal
5.
Select
Full Cal.
The screen will change to:
Calibration
Æ
pH/ORP
DO/EC
Aux Electrodes
6. Select
DO/EC
. The screen will change to:
Calibration
Æ
DOZero?[01/Jan/12]
DO100%?[01/Jan/12]
EC2570?[01/Jan/12]
The dates shown to the right of the screen are the dates of the last successful
calibration.
7. Select DOZero. The screen will change to:
PLEASE WAIT
Stabilising
000%
The Meter will wait until the readings are stable, then it will send the calibration
command to the Probe, where the calibration takes place. During calibration,
the Calibrating screen is displayed and the progress counter counts up. If the
calibration is successful, the counter will reach 100% and the following screen
will be displayed.
Output:4.4
Calibrating
100%
Press [OK]
The top line will display a value which represents the health of the luminophore.
This value should be between 3.5 and 4.5 (at 25°C). If the value returned is
less than 3.5, the Optical DO Cap should be replaced.