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Macro 900 Operation Manual
V3
© 2013 Palintest Ltd.
www.palintest.com
Page 70 of 147
CALIBRATE BGA-PE
Æ
Pt-1? [01/Jan/12]
Pt-2? [01/Jan/12]
Calibration point 1 (Pt-1) is the Zero point. Calibration point 2 (Pt-
2) is the upper calibration point.
The dates shown to the right of each point are the dates of the last
successful calibration.
7.
Select Pt-1. 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.
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.
15.3.7.
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.