6
Identifying the Correct
Com Port
T h e c o m p u t e r
Com
munications
Port
to
which the 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
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.