Model 3440-L 6–3
6. SPECIAL FUNCTIONS
STAT TEST
The Stat Test, or statistical stability test, may be performed to validate the
normal operation of the gauge. Erratic readings or readings that seem to
fluctuate may indicate a problem with the gauge. If the readings are
suspect, the stat test may be executed.
A stat test should result in a ratio of actual-to-predicted standard deviation.
Ideally, the ratio should be 0.25, but acceptable limits are between 0.17 and
0.33. A definite instability exists if the ratio is outside these limits. Contact
the nearest Troxler Service Center for additional instructions.
To execute the stat test, press 〈SHIFT〉 and 〈SPECIAL〉 for the display:
SPECIAL FUNCTION
YES- Next menu
1- STAT TEST
2- DRIFT TEST
Press 〈1〉 for the display:
- STAT TEST -
Want to view
last Stat data?
If 〈YES〉 is pressed to view the last stat test data, the display is:
DENS STAT TEST
Avg cnts: xx
R: x.xxx
-ENTER for Moist
To view the moisture data from the last stat test, press 〈START/ENTER〉.
The display is:
MOIST STAT TEST
Avg cnts: xx
R: x.xxx
View Stat. data?
The data for each of the readings may be viewed on the screen as described
on page 6–5.
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