Agilent Technologies E4356A manual Using the Keypad, Output Checkout, Shifted Keys, Backspace Key

Using the Keypad

Shifted Keys

Some of the front panel keys perform two functions, one labeled in black and the other in blue. You access the blue function

by first pressing the blue key, which is not labeled. When the Shift annunciator is on, you will know you have access to the key’s shifted (blue) function.

Backspace Key

The key is an erase key. If you make a mistake entering a number and have not yet entered it (have not pressed

), you can delete the number by pressing . You may delete as many numbers as you wish by repeatedly pressing this key.

Output Checkout

Important When the power supply is turned on, it asserts the state stored in EEPROM memory location 0. For a new unit, this is the factory default (*RST) state. The following procedures assume that the factory default state is still in location 0 (Turn-On Conditions in Chapter 5 for details).

Checking the Voltage Function

The tests in Table 3-1 check the basic voltage functions with no load connected to the power supply. The VOLTS display will show various readings. Ignore the AMPS display.

Table 3-1. Checking the Voltage Functions (Output Terminals Open)

Procedure

Display

Explanation

Output Terminals Open or Connected to a Voltmeter

If Dis is on, turn it off by pressing
Press	key	VOLT 0.000

Default voltage setting. CV annunciator should be on. (If CC

annunicator is on, increase the current by pressing one or more times until CC turns off and CV turns on.)

Press

Press

VOLT 40

40.00

Program output to 40 volts.

Enter the voltage. Meter mode displays output voltage. During these tests, there may be a small (relative to full output) AMPS reading that will be ignored.

Press several times

Press the same number of times

Rotate Voltage control first counterclockwise and then clockwise

Press

Press

Voltage decreases several millivolts each time you press the key.*

Voltage increases several millivolts each time you press the key.*

*The number of millivolts change is determined by the voltage programming resolution of your power supply (see Appendix A -"Supplemental Characteristics").

Control operates similarly to and keys. The control is rate sensitive. Turning it more quickly causes a more rapid change in voltage.

40.00	Program output to 40 volts.
	Display shows default OVP (overvoltage protection) trip voltage for
	your unit (see Appendix A - "Supplemental Characteristics").

22 Turn-On Checkout