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Delete Stored Data (Not available on 21 CFR, Part 11 compliant units)
This function is used delete individual results and is nonreversible. Normally
results are deleted to make management of the data easier. If the test results need
to be saved, they should first be printed or stored in a computer file. Moving the
selector bar to a particular test and pressing [DELETE] will erase the record so be
careful! If the list is empty, the screen will show NO MENU ITEMS.
Print Stored Data
®
Stored data can be printed to a parallel printer attached to the MAX
5000XL. That
same data can also be routed to a computer. To print stored data, select that option
on the STORED DATA MENU and press [PRINT].
High Temperature Lift Calibration
4.4.
®
The MAX
5000XL High Temperature
Lift Calibration routine records the lift
that is created in the heat chamber
from air currents. The calibration will
significantly improve low ash
accuracy and unit to unit correlation.
Since the calibration is performed at 600 °C and ramps the temperature to 600 °C
twice with a room temperature cool down in between, it takes about 2 ½ hours to
complete the calibration. The calibration can be run at night if the room temperature
is similar at night as during the hours of operation. If a fume hood is used during
testing, then use a fume hood during calibration. Note, the High Temperature Lift
Calibration runs at 600 °C, so it will clean the oven chamber.
The calibration typically has a lift at 30min of -0.0005g to -0.0060g and typically has
a heater power of 55% to 85%.
The 600 °C calibration is scaled to provide compensation at other test temperatures.
This calibration is performed at the factory and can be routinely performed by the
customer. The calibration report can be printed before and after the calibration to
provide a record of the calibration difference. The interval between calibrations may
be increased if experience demonstrates minimal difference between successive
calibrations, or the interval may be decreased if experience dictates otherwise.
Page 14 of 24
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