Viewing or changing probe calibration data – NARDA 8718B User Manual

Page 105

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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 (Clear To Send)

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

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