11. Measuring with the measuring menus
Timer as
function channel
Measuring times can be output and saved via the function channels ´
Time
´ in
the format ´sssss´ or ´ssss.s´ (see 12.3.9). The 2nd timer with 0.1 seconds res-
olution can be obtained by programming the exponent to -1. At a count of
60,000 the timer is reset and starts again at 0. All the normal start / stop func-
tions can be used; in addition, the start, stop, output, and zero-setting of the
2nd timer can also be triggered by actions in the event of limit values being ex-
ceeded; (see 12.4.3).
11.4.7 Averaging over the cycle
To acquire average values at cyclic intervals over cyclic periods the averaging
mode ´
CYCL
´ must be used. This ensures that the average value, maximum
value, and minimum value are cleared after each cycle but continue to appear
in the display throughout the following cycle.
Set averaging over a cycle
Averaging mode CYCL
To program the cycle (see 12.1.2):
Cycle 00:15:00
Check
Start measuring operation, averaging runs
<START>
© »
Stop measuring operation
<STOP>
ll
Read out average value / cycle in average value function
Aver. val. 13.24 ms
To output all function values of the menu press
<PRINT>
Average value over manually set periods of time :
Using the same averaging mode but without the cycle the average value can
also be obtained over the period of time from one manual measuring point scan
to the next measuring point scan.
Set averaging over a cycle
Averaging mode CYCL
Select the cycle and clear by pressing
<CLR>
Cycle timer: 00:00:00
Check
Start measuring operation, averaging runs
<START>
© »
Manual measuring point scan
<MANU>
©
...
Average value over period from one measuring point scan to the next
Average value12.34 ms
For recording average values you will need an additional function
channel with range M(t) (see 12.3.9, 12.3.10) or the corresponding
output function M(t) instead of the measured value (see 12.4.5,
Manual 6.10.4).
44 ALMEMO
®
5690-2M
m
=
∑
i
m
i
/
N
Measuring rate m
i
m
1
m
2
Cycle
Display
m
1
