Amprobe DM-II-PLUS Power-Quality-Recorder - Manual (Page 13)

11
Connection with a PC.
Connect the Instrument to the PC 1.
The RS232 cable and the Download Suite software are required to transfer data to a •
PC. The RS232 port is located on the top side of the instrument. There is also a USB
converter kit (RS-USB) available for PCs without RS232 port.
Turn ON the instrument and wait until the Initial screen disappears.
•
Connect the RS232 cable with the meter. •
Connect the other end of the cable to the serial output of the PC. •
2. Install the Download Suite Software
Insert the Download Suite CD into the CD-ROM drive of the PC. •
Install the software by following the on-screen instructions. •
3. operation
Open the program by double-clicking the Download Suite icon. •
Click Work with instrument and then click Next. •
Select DM-II Plus and click Next. •
Select Program device and click Next. Click Next again to open the Programming •
Screen.
Set up the parameters and click OK to start recording
•
To download file from the device, click File>New Download or press F2 on your •
keyboard.
Follow the instructions and then click NEXT.
•
To start a new virtual instrument, click File>New Virtual Instrument or press F3 on •
your keyboard.
Follow the instructions and then click NEXT.
•
Click Visualizations to select digital meter, generic historical graph, or generic •
historical table. Select the parameters you want to visualize and click ok.
Note: Refer to the help in the Download Suite program for more information.
EVALUAtINg PARAMEtER VALUES
Push VOLTAGE, CURRENT, POWER, or ENERGY to see the related screen.
Push SAVE to save a Smp memory record containing the instantaneous values of voltage and
current inputs.
Push ENTER/HOLD key to interrupt the real time updating of the displayed values. Push again
to continue real time display of values.
Please see the appendix for definitions of messages displayed on the instrument.
Voltage (Refer to fig.6)
Displays in real time the RMS value of AC/DC voltage, the peak and Thd value of all phase
voltages, their waveforms and their harmonics spectrum.
HARM. Mode (Refer to fig.7)
Push F1 to view the Voltage HARMONIC mode.
Displays the harmonics of the phase or phase-to-phase voltage. The histograms represent the
harmonic content of the voltage under test.
NOTE: The value of the first harmonic h01 (fundamental at 60Hz) is not represented in scale
along with the other harmonics in order to maximize the display of the latter.
When both voltage and current are measured by the instrument and the harmonics become
negative (below horizontal axis), such indication refers to voltage harmonics generated by the
load.