Three-Point Calibration; Point 2 - palintest Macro 900 Operation Manual

Macro 900 Operation Manual
In order to achieve this, one batch of the 0.5ppm solution should be put into a
refrigerator and the other two solutions should be put into a water bath at
25ºC.
Once all three solutions are at a stable temperature, calibration can begin.
16.8.2.

Three-point Calibration

During three-point calibration, the MAP 2000/2100 and Macro 900 Meter must
remain switched on. If the Macro 900 Meter is switched off between points, the
calibration process will be aborted and must be re-started from point 1. To
calibrate the ISE electrode follow these steps:
Point 1.
1. Remove the storage cap from the pH electrode, wash the Probe in
distilled water, dry the probe thoroughly then drop the Probe in to the
warm 0.5ppm solution.
2. Switch the Macro 900 Meter on and stir the probe until the temperature
and F readings are completely stable. A minimum of five minutes is
recommended.
3. Ensure the temperature of the solution is between 20ºC and 40ºC (68ºF -
104ºF).
4. Press the MENU key then select Calibration. The following screen will be
displayed.
5. Select Full Cal. The screen will change to:
6. Select Aux Electrodes. The screen will change to:
The Fluoride (F) electrode should have been assigned to AUX socket 2
when it was fitted. Move the pointer down to 2:F then press the OK or
right arrow key to select.
© 2013 Palintest Ltd.
Calibration
MacroCal
DO 100%
Full Cal
Calibration
pH/ORP
DO/EC
Aux Electrodes
SELECT ELECTRODE
1:TURB l 4:N/A
2:F l 5:N/A
3:N/A l 6:N/A
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