Starting The E4990A; Turning The Power On And Off - Keysight E4990A Installation Manual

Introduction

Starting the E4990A

Starting the E4990A
This section describes how to turn ON/OFF the E4990A power and how to cut
off the power supply in the case of emergency.

Turning the Power ON and OFF

The standby switch can turn ON/OFF the E4990A. The color on the button
shows the status, as indicated below:
Ind icator Color
Green
Orange
Red
Perform the following steps to turn the power ON or OFF.
Turning the Power ON
Step 1. Confirm if the Line Switch on the rear panel is turned ON. The switch should
always be turned ON.
Step 2. Press the standby switch once. It changes to green color.
This operation turns ON the power, and the E4990A starts the self- test.
Step 3. Confirm that the self- test indicates normal operation.
Normal operation is confirmed by the self- test if no error message appears.
Turning the Power OFF
Step 1. To turn OFF the power of the E4990A, first, press this standby switch or send
a shutdown command from the external controller to activate the shutdown
process (the process of software and hardware necessary to turn OFF the
power supply). This puts the E4990A into the standby state and the button
changes to orange color.
Keysight E4990A Impedance Analyzer
Description
Normal power on status
Standby status
Illegal power on status
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