NARDA 8718B, User Manual

Page: 105 / 137

104 Operating the Meter
To establish communications between the meter and the
computer...
1. Use the supplied computer cable to connect between
the RS232 connector on the meter and a COM port
( COM 1 or COM 2 ) of your computer.
2. Start the User’s software. The Main Menu Screen
shows the COM port and baud rate settings. Check
that the COM port setting matches the location of the
cable. Note the baud rate setting. The default setting is
9600 baud.
3. Change the baud rate and/or COM port if desired by
selecting the ComPort pull down menu and selecting
the desired rate and/or COM port.
The User’s Software indicates the communications status. Prior
to establishing communications, the CTS ( C lear T o S end)
indicator will be black and the words “ Not On Line ” will be
shown below the indicator.
4. Turn the Model 8718B on.
5. Once the meter has finished booting up, press
F4
( MENU ) on the meter to access the First Menu Screen .
6. Press 6 ( RS232 ) to select the communications port
menu.
7. Check that the baud rate on the meter is set to the
same as the User’s Software . The meter setting will be
the same as the last time the meter was used.
8. Check that the CTS indicator on the computer screen has
turned red and the status has changed to “ On Line ”.
Viewing or Changing Probe Calibration Data
The 8718B knows the basic parameters of all 8700 series probes
i.e. frequency range, type of probe (electric or magnetic field),
measurement range, and standard calibration frequencies. The
term “installed” means that the meter has stored the calibration
date and the correction factors for a specific probe. Narda installs
probes that are shipped at the same time as the 8718B.
The cable must be a
RS232 serial cable with
a DB9 male connector
on one end and a DB9
female connector on
the other end. Do NOT
use a null modem ca-
ble since these are
wired differently. Note
that certain older
model computers have
a 25-pin connector for
a serial port that will
require either an
adapter or a different
cable.
N
ote
Operation of an older
model 8718 meter that
has been upgraded to
Version 3.0 firmware is
different. The default
condition upon meter
turn-on for the RS232
port is off (to con-
serve power). The
RS232 port must be
turned on from the
meter menu.
N
ote