3.
Programming the Measuring Time/Measuring Interval
The ALPHAiX allows setting of various measuring times in the IMPULSE mode or
measuring intervals for display in IMP/m but not in
µ
Sv/h. As already mentioned, the
new measuring intervals in the
µ
Sv/h and IMP/m measuring method are
automatically started after the pre-selected measuring time and the measured value
of the completed measuring interval is stored. In other words, it concerns indefinite
measurement series.
This is not possible in the IMPULSE mode. The unit stops after the set measuring
time showing the total number of impulses counted during the measuring time in
the display. The unit must be re-started manually (RUN key), which re-sets the
display to zero.
For the IMPULSE mode a longer measuring time is usually selected than for the
measuring methods (
µ
Sv/h & IMP/m) which involve automatic storage of the
measured values. To allow retrieval of intermediate results in the IMPULSE mode the
count can be stopped without interrupting it.
The display stops if the RUN/STOP + PERIOD keys are depressed simultaneously in
the IMPULSE node. The dots in the display disappear and only a flashing dot
indicates that the measurement is continuing in the background. The display is
reactivated by depressing the RUN/STOP and PERIOD keys again, i.e. the impulses
counted during that time are loaded to the display and the measurement is
continued with the current values.
Simultaneous depression of the SET + PERIOD keys and the
↑
/
↓
keys means 8
different measuring times/intervals can be set:
IMPULSE mode:
10 sec.
Imp/m +
µ
Sv/h
/
10 sec
1 min
1 min
10 min
10 min
60 min
60 min
100 min
100 min
6 hours
6 hours
12 hours
12 hours
indefinite
24 hours
The difference in the last stage follows from the fact that the measuring methods
IMP/m +
µ
SV/h run indefinitely anyway. The current flashing measuring time
appears on depression of the SET + PERIOD keys. The required measuring time can
be set with the
↑
/
↓
keys. After the required setting the SET key must be depressed
until the date display appears. A new series of measurements can then be started.
The
↑
/
↓
keys are identical to the TIME + SOUND keys and are generally used to
program the ALPHAiX. Programming is always completed with the SET key - i.e. it
must be depressed until the date display appears and can be switched over.
OPERATING INSTRUCTIONS
ALPHAiX 3000
JS Friday 22 April 2011 Page 4 of 7