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Macro 900 Operation Manual
V3
© 2013 Palintest Ltd.
www.palintest.com
Page 82 of 147
Offset:2500mV
Calibrating
100%
Press [OK]
The Calibration Report on the top line displays the voltage output from the
probe in millivolts (mV). This value is not stored in memory so should be noted
down in a calibration record book for the probe.
15.5.7.
Calibrating Point 2
Remove the Probe from the calibration bottle, shake off any excess water then
dry the outer sleeve with a soft cloth.
Fill a calibration bottle with freshly mixed Rhodamine calibration solution and
drop the Probe in all the way.
Again, bang the Probe against the bottom of the bottle several times in order to
remove any air bubbles that may be clinging to the probe.
Follow the procedure detailed above for Zero point calibration as far as step 6,
then select Pt-2. Wait while the Meter stabilises and calibrates.
After successful calibration, the ‘Calibrating 100%’ screen will be
displayed
along with the Calibration Report, which will show the voltage output from the
probe in millivolts (mV). Press the
OK
key to continue.
Calibration is now complete.
15.5.8.
Errors During Calibration
If a problem occurs during calibration, an error message will be displayed.
Refer to
Error! Reference source not found.
in section 10 for error message
handling.
15.5.9.
Lens and Sleeve Maintenance
On a daily basis, the lenses on the probe should be wiped over with a soft damp
cloth.
Similarly, the inside of the Probe Sleeve and Sleeve Cap should be kept clean
and free from any deposits that may cause stray fluorescence.
Never use an abrasive cleaner on the inside of the Probe sleeve or cap
as they have been treated with a non-reflective coating which can be
easily damaged.
The inside of the sleeve should be wiped over with a soft
damp cloth and
non-abrasive
detergent.
Always re-calibrate the zero point after cleaning the sleeve or lenses.