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Sales@ADMET.com www.ADMET.com R7 10/2018
Acquisition / Analysis Problems
Analysis Result is 0 or
NA
User specified analysis data range is not
consistent with the data being collected
during the test. Many analyses have user
selectable parameters such as displacement
or Load Change %, which specifies amount of
load drop from previous point over
successive points to trigger end of test.
These settings need to be consistent with
the data being logged.
Ensure that the parameters selected for any
analysis are appropriate to the logged data, ie will
data be logged in the region defined by the
specified parameters. Ensure that any
displacement range specified in the analysis
section is included in the actual test data logged.
Sample Break % and/or Data Logging
Threshold (Data Acq menu) not set to values
appropriate to your test
Ensure that the data logging Threshold and Sample
Break % are set to values appropriate for your test.
Threshold is where data logging begins. Once the
threshold is crossed the software is looking for the
load to drop fromthe maximum load as specified in
SampleBreak%. An insignificant drop in load at the
beginning of a test can trigger the end of the test if
the threshold is set to low. Similarly an extremely
low setting for Sample Break
Percentage can trigger a premature endof test.
Local Overload (Data Acq menu) set to low
Ensure that the Local Overload (Data Acqmenu)
value set to an appropriate amount. The purpose
of the local overload is for product testing where
you want to limit the load for a test to a value that
is less than load capacity of the machine in order
to protect the test specimen. If you are testing
samples to failure than the local overload should
be set to the full-scale capacity of the load cell.
Log Rate (Data Acq menu) not set to
appropriate value
Set the Log Rate (Data Acq menu) to a value
appropriate to your test. The maximum data
logging rate is 1000 Hz, which gives you 15 seconds
of test buffer. Ensure that the length of your test is
less than maximum time allowed at your specified
logging rate. The maximum time for each logging
rate is displayed in the menu selection
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