Agilent Technologies 66309B, 66311B, 66111A manual Procedure Display Explanation

4 - Turn-On Checkout
	Procedure	Display		Explanation
7.	Plug the output connector			Restores the output sense connections. The Prot
	back into the unit.			annunciator is still on.
8.	Press Shift, Prot Clear	NO FAULT		Clears the protection condition. Prot is off; CV is on.
9.	Press Voltage	VOLT 0.000		Display shows the output voltage setting of the unit.
10.	Press Enter Number,	VOLT <15>		Programs the main output to 15 volts. After the value
	<15>, Enter	15.003V	0.0001A	is entered, the display returns to Meter mode.
				Because the output is enabled, the meter will indicate
				the actual output voltage.
11.	Press Shift, OV	PROT:LEV 22.00		Display shows the overvoltage protection trip voltage
				of the unit.
12.	Press Enter Number,	PROT:LEV <8>		Programs the OVP to 8 volts, which is less than the
	<8>, Enter			previously set output voltage.
		0.000V	0.0001A	Because the OVP voltage entered was less than the
				output voltage, the OVP circuit tripped. The output
				dropped to zero, CV turned off, and Prot turned on.
13.	Press Shift, OV,	PROT:LEV <22>		Programs the OVP to a value greater than the output
	Enter Number,			voltage setting of the unit. This prevents the OV
	<22>, Enter			circuit from tripping again when the protection
				condition is cleared.
14.	Press Shift, Prot Clear	15.003V	0.0001A	Clears the protection condition, thus restoring the
				output of the unit. Prot turns off and CV turns on.
15.	Press Output On/Off	0.000V	0.0000A	Turn the output off.
16.	Connect a jumper wire			Shorts the output of the unit.
	across the + and - output
	terminals.
17.	Press Output On/Off.	0.004V	3.0712A	The CC annunciator is on, indicating that the unit is
				in constant current mode. The unit is sourcing output
				current at the maximum rating, which is the default
				output current limit setting.
18.	Press Current,	CURR <1>		Programs the output current to 1 ampere.
	Enter Number,
	<1>, Enter.
19.	Press Shift, OCP	0.001V	0.0003A	You enabled the overcurrent protection circuit. The
				circuit then tripped because the unit was operating in
				constant current mode. The CC annunciator turns off,
				and the OCP and Prot annunciators turn on.
20.	Press Shift, OCP	0.001V	0.0003A	You have disabled the overcurrent protection circuit.
				The OCP annunciator turns off.
21.	Press Shift, Prot Clear	0.004V	0.998A	Restores the output. The Prot annunciator turns off.
				The CC annunciator turns on.

22.Turn the unit off and remove the shorting wire from the output terminals.

The next time the unit turns on it will be restored to the *RST or factory default state.

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