Introduction; Before Applying Power; Applying Power; Power-On Self-Test - Agilent Technologies 3458A User Manual

Chapter 2

Introduction

Before Applying Power

Applying Power

Power-On Self-Test

Power-On State

This chapter is intended for the novice multimeter user. It shows you how to
use the multimeter's front panel, how to send commands to the multimeter
from remote, and how to retrieve data from remote. Since front panel
operation is discussed first, it covers important topics such as the power-on
state, display annunciators, the various ways to select or enter parameters,
and how to make a simple DC voltage measurement. For this reason, you
should read the entire chapter even if you intend to use the multimeter
primarily from remote.
•
Make sure the line voltage selection switches on the multimeter's rear
panel are set to match the local line voltage.
•
Make sure the proper line fuse is installed.
If you have any questions concerning installation or power requirements,
refer to Chapter 1.
To turn on the multimeter, depress the front panel Power switch. If the
multimeter does not appear to turn on, verify that the multimeter is connected
to line power. If line power is not the problem, remove the power cord and
check the line power fuse and the line voltage selection switch settings.
When power is applied, the multimeter performs a limited power-on self-test.
This test verifies that the multimeter is operating but does not necessarily
verify that measurements will be accurate.
When the power-on self-test is finished, the multimeter beeps once,
automatically triggers, automatically selects the range, and performs DC
voltage measurements. Also, the multimeter has set many of its commands
to predefined power-on values as shown in Table 5, This is called the

power-on state.

Getting Started
Chapter 2 Getting Started 25