When pressed simultaneously with LOCK, will erase all four memories and will
initiate a 1 minute count into all four memories. The displays will each read 65536 if
the test signal has been properly processed. This tests all digital circuitry in the
tester, but does not test the analog circuitry (high voltage supplies).
After approximately Jul 78, TEST will count 1/4 minute and
will display 16384.
This shortens TEST time as a
When pressed, the tester will count Density Only, retaining last moisture count. D-
ONLY is cancelled by pressing an Operations Key or by pressing CLEAR.
Same as D-ONLY except that only moisture is counted.
1/4 - MIN
Initiates 1/4 minute count cycle. Use for Statistical check per Paragraph
1/2 - MIN
Initiates 1/2 minute count cycle.
1 - MIN
Initiates 1 minute count cycle.
2 - MIN
Initiates 2 minute count cycle.
PRECISION OF VARIOUS TIME PERIODS
NOTE: ALL DISPLAYS NORMALIZED
TO 1/4 MINUTE.
PCF - Pounds Per Cubic Foot
BS - Backscatter
AC - Asphaltic Concrete