temperature). Overheating compensates heat loss during evaporation of large moisture
content in the test’s initial stage.
STEP mode
Enables determining up to three steps with random
drying temperature. Step mode is recommended for
drying substances with moisture content over 15%.
Temperature and heating time in each step have to
be adjusted by tests.
13.5. Selecting drying time
Drying time is set by selecting one of available finish mode criteria. This means that a
moisture analyzer must meet pre-set criterion (requirement) (mass over time, time) to
automatically finish the drying mode.
Finish of drying process can occur on elapsing defined amount of time, independently
on loss in mass. This criterion is used for substances that may decompose during drying
process, and their mass does not reach constant value.
The second criterion is loss in mass (less than 1 mg) in defined amount of time.
Automatic finish mode (Auto switch off mode)
The moisture analyzer MAX series enables selecting between various types of finish
modes:
- Automatic 1 (change 1mg/10s)
- Automatic 2 (change 1mg/25s)
- Automatic 3 (change 1mg/60s)
- Automatic 4 (change 1mg/90s)
- Automatic 5 (change 1mg/120s)
- Time defined (maximum drying time 99 hours 59 minutes)
- Manual (on pressing a function key)
- User defined 1 (set mass change ratio m 0,1-9,9mg and time interval t
max 2,55 sec.
- User defined 2 (set moisture content change ratio % M o ve r tim e
- Test (enables adjusting finish mode parameters to a tested sample)
Automatic finish mode – user defined criterion (mass/time)
The operator determines the limit value for loss of mass and time in which the loss of
mass must not exceed a pre-set value. As the moisture analyzer reaches the set criterion it
automatically finishes the measurement (drying process).
Manual finish mode
An operator ends drying process manually by pressing START/STOP button on
moisture analyzer’s display.
Time defined finish mode
Drying process finish takes place on elapsing a set amount of time, independently on
measurement result.
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