Agilent Technologies E3633A User Manual (English)

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Chapter 3 Front-Panel Operation

System-Related Operations

Display Control

For security reasons, you may want to turn off the front-panel display. From the remote

interface, you can display a 12-character message on the front panel.

• The display can be enabled / disabled from the remote interface only.

• When the display is turned off, outputs are not sent to the display and all

annunciators are disabled except the

ERROR annunciator. Front-panel operation

is otherwise unaffected by turning off the display.

• The display state is stored in volatile memory; the display is always enabled when

power has been off, after a remote interface reset, or after returning to local from

remote.

• You can display a message on the front panel by sending a command from the

remote interface. The power supply can display up to 12 characters of the message

on the front panel; any additional characters are truncated. Commas, periods, and

semicolons share a display space with the preceding character, and are not

considered individual characters. When a message is displayed, outputs are not

sent to the display.

• Sending a message to the display from the remote interface overrides the display

state; this means that you can display a message even if the display is turned off.

• The display state is automatically turned on when you return to the local (front

panel) operation. Press

(Local) key to return to the local state from the

remote interface.

• Remote interface operation:

DISP {OFF|ON} Disable / enable the display

DISP:TEXT <quoted string> Display the string enclosed in quotes

DISP:TEXT:CLE Clear the displayed message

The following statement shows how to display a message on the front panel from a

Hewlett-Packard controller.

‘‘DISP:TEXT ‘HELLO’ ’’

Store

Local

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General

Output Current Range	0 to 3 A
Operating Temperature Range	0 to 50 °C
Storage Temperature Range	-40 to 70 °C
Ripple and Noise (Vp-p)	Voltage: <2 mV
Current Ripple and Noise (20 Hz to 20 MHz)	<500 μA
Voltage Programming Accuracy	0.05% + 10 mV
Current Programming Accuracy	0.1% + 5 mA
Ripple and Noise (rms)	≤ 350 µV