11. Measuring with the measuring menus
1. If a measuring operation has been started stop it by pressing
<STOP>
2. Set averaging mode (see 10.5)
Averaging mode CONT
For measured value smoothing, if necessary, select Smoothing
Smoothing 20
If necessary switch continuous measuring off
Meas. rate: 10 meas./s Cont:
-
3. After selection (see 10.4) to clear average value press
<CLR>
Average value function shows
Average value: ----- m¡
Number function shows :
Number : 00000
4. Acquire individual measured values Ex manually :
<MANU>
Average value function shows
Average value: 12.34 m¡
Number function shows :
Number : 00001
5. Repeat step 4 for each measuring point.
6. To output all function values of the menu press
<PRINT>
11.4.4 Networked measuring
Average velocity in a flow channel is calculated
as per VDI/VDE 2640, namely by performing
measuring operations at particular networked
points in a cross-section vertical to the pipe
axis (see Manual 3.5.5). To log all the individ-
ual values or to be able to repeat incorrect
measuring operations a special menu is pro-
vided for networked measuring. This special
menu can be accessed via the Average value
function by pressing
<ARRAY>
. This menu can
also be used of course for other point measur-
ing operations.
1. The averaging mode is not significant :
Averaging mode : ----
For measured value smoothing, if necessary, select Smoothing
Smoothing 20
2. Select Average value function
Average value
-----
3. To select the networked measuring menu press
<ARRAY>
4. For data acquisition press
PROG
5. Enter number of points
Net. measuring Points
5
A deleted array appears
01: --.-- m¡
6. To select a measuring point press
01
: --.-- m¡
7. To start the measuring operation press
<START>
01
: 11.22 m¡
8. To stop the measuring operation press
<STOP>
01
: 11.43 m¡
9. Acquire all points as per steps 6 to 8.
10. To delete the array and new measuring operation press
<CLEAR>
11. To return to the measuring menu press
<ESC>
42 ALMEMO
®
5690-2M
E1
E2
E3
E4
MANU
MANU
MANU
MANU
CLR
M
=
∑
i
E
i
/
N
Net measurement Points: 5
01: 11,43 m¡
02: 12.51 m¡
03: 19.71 m¡
04
: 12.51 m¡
05: --.-- m¡
Average value : 14.51m¡
STOP CLEAR F ESC