7
T h e c o m p u t e r
Com
munications
Port
to
which the PC-3.5 serial
cable is connected can be
identified by using a paper
clip.
1. Disconnect the serial
cable from the meter.
2. To bring up the
Port Selection
screen, click on the
Com Port
Button, select the com port to be tested and
click the
Port Test
button. Click the
Test Port Now
button. If the message “Connection OK” is displayed,
another device (such as a modem) is probably connected
to that port. If the message “No Connection” is displayed,
this port may be the one connected to your serial cable and
you can proceed to the next step.
3. Place a paperclip on the end of the serial pin so that it
touches both the tip of the pin and the metal area between
the two black rings. Again click on the
Test Port Now
button. If the message “Connection OK” now appears,
this is the com port connected to your serial cable.
paper clip
or wire
Identifying the
Correct Com Port
NOTE: The meter does not short-circuit the serial pin.
Therefore, when the
Test Port Now
button is clicked
while the meter is connected, the “No Connection”
message will be displayed.
