Two-Point Calibration; Single-Point Calibration - palintest Macro 900 Operation Manual

Macro 900 Operation Manual
Pt-1 calibration temperature, an OUT OF TEMP RANGE calibration error will be
reported. If this happens, adjust the temperature and try again.
Point 3
1. Remove the probe from the 100ppm solution and wash thoroughly in
deionised water. Dry the probe then drop it into to the cool 10ppm
solution.
2. Stir the probe until the temperature and Cl readings are completely
stable. A minimum of five minutes is recommended.
3. Ensure the temperature of the solution is at least 10ºC cooler
than the previous 100ppm calibration point. If the solution is too
warm, calibration will fail.
4. Referring to steps 4-7 above, select Pt-3 and press OK.
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 as
shown above. If the calibration is successful, the counter will reach 100% and
the calibration report screen will be displayed.
If the temperature of the cool 10ppm solution is less than 10ºC cooler than the
Pt-1 and Pt-2 calibration temperatures, an OUT OF TEMP RANGE calibration
error will be reported. If this happens, adjust the temperature and try again.
16.6.3.

Two-point Calibration

Two-point calibration should be carried out weekly. For this, 10ppm and
100ppm solutions are required. The two solutions can be at any temperature
between 5ºC and 30ºC but they both must be the same temperature (within
1ºC).
If the temperature of the two solutions differ by more than 1ºC, an OUT OF
TEMP RANGE calibration error will be reported. If this happens, adjust the
temperature and try again.
During two-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 the steps outlined above under three-point
calibration for points 1 and 2 only.
16.6.4.

Single-point Calibration

Single-point calibration should be carried out daily. For this, just 10ppm
solution is required. The solution can be at any temperature between 5ºC and
30ºC.
To calibrate the ISE electrode follow the steps outlined above under three-point
calibration for points 1 only.
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