Boonton 4240 RF Power Meter - Manual (Page 24)

Boonton 4240 Series RF Power Meter
6. Press the <MENU> key and select DIAGNOSTICS with the down arrow key. Press <ENTER>.
S
8. Use the <Down Arrow> key to move the "<" cursor to SWITCHES and press <ENTER>. Press each
y press will result in an identifying message;
<MENU> will exit the test and return to the MENU.
9. st will sequentially
send a DC voltage in 1 volt steps to the recorder output BNC connector on the rear panel. The test
10. Press <MENU> to return to the measurement display.
11.
nnel with no sensor installed will report a table number.
L OUT, press the <Menu> key followed by the
<Zero/Cal> key and select ZERO function for the active channel. Verify the ZERO operation
14.
15.
16.
the bottom line
BOONTON ELECTRONICS, 4242, 11002, 20100717
17. Connect a dumb terminal or PC serial terminal to the Model 4240. Use a null modem if the terminal is
wired as DCE. For message communication to take place, the parameters of the serial connection and
message strings must agree between the terminal and the Model 4240. Use <Menu> <SETUP> <RS-
232> to set parameters for the 4240. Send the command or "*IDN?" EOL and verify that the correct
identification string is returned.
Verify the following sub-menu:
RTN
SELFTEST <
SWITCHES
RECORDER
7. Press <Enter> to execute the self-test. The items tested are as follows:
PROCESSOR
RAM MEMORY
EEPROM
Each test will display the OK message if passed. When the test is completed the menu will reappear.
front panel key, avoiding <MENU> until last. Each ke
Use the <Down Arrow> key to select RECORDER and press <ENTER>. This te
will continue until <MENU> is pressed. Use a DC voltmeter to verify correct operation.
Press the <Sensor> key and verify that the RF Sensor serial number(s) appear under the channel
heading(s). An active cha
12. Press the <AVG> key and verify that the filter time and number of samples appear for each active
channel.
13. With each installed sensor connected to the CA
completes successfully.
Next press the <Menu> key followed by the <Zero/Cal> key and select the FIXED CAL function for
the active channel. Verify the CALIBRATE operation completes successfully.
Repeat steps 13 and 14 for channel 2 if installed.
Connect a GPIB controller to the Model 4240. Verify that the instrument can be addressed to Listen at
its IEEE bus address, and set to Remote. The display must show the correct status on
of the display. For message passing, the line terminators for the controller and the Model 4240 must
be compatible for both Listen and Talk. Use <Menu> <SETUP> <IEEE> to set address and
terminators for the 4240. Address the Model 4240 to Listen/Remote and send the command "*IDN?"
EOL. Then address the Model 4240 to Talk (controller to listen) and verify that the correct
identification string is returned. For example using SCPI emulation the ID string returned would be as
follows;
Installation
2-4