DVM8852
00 (04/11/2008)
Velleman
®
7
7.
Analysis
•
The meter can store 32,700 readings. To analyse the readings, the included software must be
installed.
Software setup
•
Insert the included CD-ROM into a personal computer. Open the CD directory and double click on
the file named
setup.exe
to start the installation. Follow the instructions on the screen of your
computer.
•
Connect the USB port
[M]
of the meter with a free USB port of the computer using the included
USB cable.
•
Switch on the meter with the power on/off button
[I]
.
•
Press on the setup button
[D]
to start data transmission. The auto-power off icon
[14]
is no
longer displayed.
•
When the computer doesn’t recognize the USB device, copy the CP2101WIN directory from the
CD to a local directory and let the computer look for the drivers on the local directory.
Data analysis
•
Locate the
8852.exe
icon (
) and double click it to start the software. Select the right COM
port in the
ComPort(C)
menu. The COM port depends on the setup of the computer and the
used USB port. When the right port is selected, connection is established immediately. Refer to
the Figure 4 on page 3 of this manual for a screen shot.
•
Use the
Real Time(R)
menu to run or stop real time sound monitoring, set up or clear the
graph. Details are shown above the graph.
•
Real-time mode must be stopped to set the sampling rate. Note that this is not the sampling rate
of the meter, but the rate with which the software reads the meter.
•
Zoom in on the graph by selecting an area with left click, drag and release. To go back to full
screen graph, click on the
UnDo Zoom
button.
•
When in zoom mode, click on the
Graph(G)
menu and select
Histogram
. Click anywhere in the
graph to change the appearance to a histogram. Go to the
Graph(G)
menu, select
Line
and
click anywhere in the graph to change the appearance back to line.
•
Also in zoom mode, double click left mouse button on a point of the graph will set a green mark
line. Double click left mouse button again to set a second mark line (blue). Data between the two
mark lines is analyzed (e.g. max. value, min. value, average…) and shown below the graph. To
remove the mark lines, click on the right mouse button or double click left mouse button on a
new point in the graph.
•
To save the real-time data, stop real-time monitoring and start it again. At this point, the
software will ask to save the previous graph data. Data is saved as a text file.
•
To analyze previously recorded meter data, select the
DataLogger(D)
menu. Note that this will
not work when the meter is in record mode. A new screen opens; refer to Figure 5 on page 3 of
this manual for a screen shot.
•
The data is copied from the meter to the software memory and deleted from the meters’
memory.
To save the data on the computer
, use the
Save Data(S)
menu. If not, when
closing the application the data will be lost.
•
Double click left mouse button on a file to see the data. The graph also has the zoom and mark
lines functions.
•
It is possible to recall previously saved records with the
Import Data (I)
menu.
•
To print the graph, use the
Print Data (P)
menu.
8.
Battery replacement
•
To replace the battery, switch off the meter first.
•
Open the battery cover
[Q]
. Push gently on the mark (
) and slide the cover ±1cm downwards
and lift.
•
Remove the old battery and insert a new 9V battery.
Respect the polarity.
•
Place the cover on the back of the device and slide upwards. Make sure all keys are in place and
the battery cover is closed completely.
WARNING: A malfunction may occur if the power is on when the battery is
replaced. Dispose of batteries in accordance with local regulations. Keep the
battery away from children.
