Using Macrocal - palintest Macro 900 Operation Manual

Macro 900 Operation Manual

10.3. Using MacroCal

MacroCal is an easy way to calibrate the MAP 2000/2100 in the field using just
one calibration solution. MacroCal calibrates EC at 2570µS/cm, the pH7.00
point and the optional Optical Electrode Zero point simultaneously. Ideally, this
procedure should be carried out at the beginning of each day the Probe is to be
used. To use MacroCal:
1. Remove the lid from a fresh bottle of MacroCal solution, remove the
storage cap from the pH electrode if fitted, wash the Probe in distilled
water, then drop the Probe in all the way. Bang the Probe against the
bottom of the bottle several times in order to remove any air bubbles that
may be clinging to the electrodes.
2. When the Probe is inserted,
the neck of the bottle.
covered and EC will not calibrate properly. If the level is low, top up with
fresh MacroCal solution.
3. Switch the Macro 900 Meter on and wait until all readings are
completely stable. The longer you can leave the probe to achieve
thermal equilibrium before proceeding, the better.
4. Ensure the temperature of the solution is between 5ºC and 40ºC (41ºF –
104ºF). The closer to 25ºC the better.
5. Press the MENU key then select Calibration. The following screen will be
displayed.
6. Select MacroCal. The screen will change to:
The Meter will wait until all readings are stable, then it will send the MacroCal
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.
© 2013 Palintest Ltd.
ensure the level of the solution is right up to
If the level is low, the EC electrodes will not be
Calibration
MacroCal
DO 100%
Full Cal
PLEASE WAIT
Stabilising
000%
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