1-12 Getting Started 2400 Series SourceMeter
®
User’s Manual
Line frequency setting
At the factory, the SourceMeter is configured to sense the power line frequency and auto-
matically select the frequency setting. If, however, the line power source is noisy, the
SourceMeter may select the wrong setting on power-up. If this situation occurs, noisy
measurement readings will result, and accuracy may be affected. You can manually set the
line frequency from the front panel or via remote as follows.
Front panel line frequency
Set the line frequency from the front panel as follows:
1. Press the MENU key to display MAIN MENU.
2. Using the right arrow key, select AD-CTRL then press ENTER to display A/D
CONTROLS.
3. Select LINE-FREQ, then press ENTER to display LINE FREQUENCY.
4. Place the cursor on 50Hz, 60Hz, or AUTO, and press ENTER.
5. Press EXIT to return to normal display.
Remote command line frequency
Table 1-1 summarizes remote commands used to control line frequency. See “Select
power line frequency setting,” page 18-111, for additional information on using these
commands.
Programming examples
50Hz operation:
:SYST:LFR 50
Auto frequency operation:
:SYST:LFR:AUTO ON
Table 1-1
Line frequency remote commands
Commands Description
:SYSTem:LFRequency <freq> Select line frequency (freq = 50 or 60).
:SYSTem:LFRequency:AUTO <state> Enable/disable auto frequency (state = ON or
OFF).
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