6.4.5 Averaging over Time
To acquire the average value of all meas. values over a defined period without
cycle, the averaging mode ´STSTP´ must be set for the selected measuring
channel. For example, by uniformly scanning an area, this mode also allows to
determine the average flow velocity in a ventilating channel (see manual 3.5.5).
A measuring point scan will be performed on start and stop allowing to record
the start and end values including the time of day. Again, a function channel
M(t) is required for the average value .
M
If the continuous meas. point scan (see 8.3) is activated, all sensors will be
considered with a correspondingly reduced conversion rate, if it is switched off,
only the selected channel will be acquired with the actually set conv. rate:
As required, de-/activation of cont. meas. point scan:
ConvRate: 10 Cont: -
Set the averaging mode:
Averag.Mode:
STSTP
Automatic clearing of average val. on start (see 10.8)
Check:
or, after selecting the average value, by using:
<
CLR
>
Starting the averaging using the key:
<
START
>
!
M
¯
Reading the meas. time (see 6.4.6) in function:
MeasTime: 00:01:23.40
Stopping the averaging using the key:
<
STOP
>
"
Reading the average value in function:
AverageVal: 13.24ms
M
Output of all function values of the menu by using:
<
>
6.4.6 Measurement Time
For the averaging over time (see above) and for many other measurement
experiments, in many cases, the actual measurement time, from start to stop,
is required. The function ´Meas.Time´ has a resolution of 0.10s and is available
to allow a continuous monitoring of the measurement time without clearing the
real time. If the function ´Clear Meas. Values On Start of a Measurement´ is
activated within the operating parameters (see 10.8), the measurement time
will also be automatically cleared on each start.
Function ´Measurement Time´:
MeasTime: 00:00:00.00
Clearing the meas. time in function ´Meas.Time´ by using:
<
CLR
>
The time of day must be cleared before start (see 7.1) if the measurement time
should also be displayed at measuring point scans with output to the
interface or memory.
mi ...
M=( m )/N
Σ
i
i
Start
Stop
M
Conv. rate
32
ALMEMO
®
2590-9
Displaying a Measuring Point
