Agilent Technologies 6814B, 6834B manual Setting the Output Frequency, Setting a Protection Feature

Front Panel Operation - 4

2 - Setting the Output Frequency

When you turn on the ac source, the default output frequency is a 60 Hz. Assuming the voltage output from example 1 is in effect (120 Vrms sinewave), change the frequency to 50 Hz as follows:

	Action	Display
You can set the frequency in the same way that you set the voltage:
1.	On the Function keypad, press Freq. On the Entry keypad, press 5 0 Enter.	FREQ	50
2.	On the Function keypad, press Freq. On the Entry keypad, press ↓ or ° to	FREQ	50
	increment or decrement the existing value.

3.Rotate the front panel Frequency knob to obtain 50 Hz.

To verify the output, you can measure it as follows:

4.On single-phase ac sources, the φ1 annunciator is lit. On three-phase ac sources, the phase annunciator of the last selected phase will be lit. The Meter menu is presently displaying the measured voltage and frequency of the selected output phase.

You can scroll through all of the measurement functions in the Meter Menu by pressing the ￿ and  keys.

FREQ 50

120 V 50 Hz

3 - Setting a Protection Feature

You can set the ac source to disable its output if it detects an overvoltage or overcurrent fault condition. Other automatic fault conditions (such as overtemperature) also will disable the output. Set the

overcurrent protection feature as follows:

	Action	Display
1.	On the Function keypad, press Protect.	PROT:CLEAR
2.	Press ° to obtain the overcurrent command.	CURR:PROT OFF
3.	On the Entry keypad, press once to scroll to the ON parameter and press Enter. The	CURR:PROT ON
	OCP annunciator will light, indicating that the overcurrent protection circuit is on.
	CURR:PROT ON
	If you wish to set a time delay between the detection of the fault and the disabling of	DELAY .1
	the output, scroll to the delay command on the protection menu. The default delay is
	100 milliseconds.
	Enter the delay from the Entry keypad, such as . 2 5 0 Enter.	DELAY .250
4.	When you want to restore normal operation after the cause of the overcurrent	PROT:CLEAR
	condition has been removed, scroll to the protection clear command and press
	Enter. The OCP annunciator then will go off.

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