Agilent Technologies U3401A Manuale utente
Agilent Technologies
Agilent U3401A
4 1/2 Digit Dual Display
Multimeter
Quick Start Guide
ii U3401A Quick Start Guide
Notices
© Agilent Technologies, Inc. 2009
No part of this manual may be reproduced in
any form or by any means (including elec-
tronic storage and retrieval or translation
into a foreign language) without prior agree-
ment and written consent from Agilent
Technologies, Inc. as governed by United
States and international copyright laws.
Manual Part Number
U3401-90019
Edition
First Edition, March 18, 2009
Printed in Malaysia
Agilent Technologies, Inc.
3501 Stevens Creek Blvd.
Santa Clara, CA 95051 USA
Warranty
The material contained in this docu-
ment is provided “as is,” and is sub-
ject to being changed, without notice,
in future editions. Further, to the max-
imum extent permitted by applicable
law, Agilent disclaims all warranties,
either express or implied, with regard
to this manual and any information
contained herein, including but not
limited to the implied warranties of
merchantability and fitness for a par-
ticular purpose. Agilent shall not be
liable for errors or for incidental or
consequential damages in connec-
tion with the furnishing, use, or per-
formance of this document or of any
information contained herein. Should
Agilent and the user have a separate
written agreement with warranty
terms covering the material in this
document that conflict with these
terms, the warranty terms in the sep-
arate agreement shall control.
Technology Licenses
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252.227-7015 (Technical Data - Commercial
Items) and DFARS 227.7202-3 (Rights in
Commercial Computer Software or Com-
puter Software Documentation).
Safety Notices
CAUTION
A CAUTION notice denotes a haz-
ard. It calls attention to an operat-
ing procedure, practice, or the like
that, if not correctly performed or
adhered to, could result in damage
to the product or loss of important
data. Do not proceed beyond a
CAUTION notice until the indicated
conditions are fully understood and
met.
WARNING
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly per-
formed or adhered to, could result
in personal injury or death. Do not
proceed beyond a WARNING
notice until the indicated condi-
tions are fully understood and
met.
iii U3401A Quick Start Guide
Contents
The Front Panel at a Glance 1
The Display at a Glance 2
Getting Started 4
1 Connect the power cord 4
2 Adjust the carrying handle 4
3 Connect the test leads to the input terminals 5
4 Turn on the multimeter 5
5 Select a function 6
6 Set the range 6
7 Using the secondary display 6
8 Math operation 7
9 For more information 8
iv U3401A Quick Start Guide
Getting Started 1
U3401A Quick Start Guide 1
The Front Panel at a Glance
Measurement
function
keypads
Secondary display
Input terminals
and current fuse
Autoranging,
manual range,
and comparator
operation
Power
on/off
switch
Math
operation
keypads
Shift
Primary display
1GettingStarted
2U3401A Quick Start Guide
The Display at a Glance
Figure 1-1 VFD full display with all segments illuminated
The highly visible vacuum fluorescent display (VFD) annunciators are
described in the following table:
Annunciator Description
Primary display
S Reading rate: Slow. Not applicable for the U3401A.
M Reading rate: Medium. Not applicable for the U3401A.
F Reading rate: Fast. Not applicable for the U3401A.
PEAK Peak measurement. Not applicable for the U3401A.
HOLD Data hold
MIN MinMax math operation: Minimum value shown on the primary display
MAX MinMax math operation: Maximum value shown on the primary display
REL Relative value
dBm Decibel unit relative to 1 mW
4 2 W 4-wire/2-wire resistance. Not applicable for the U3401A.
Diode test
Audible continuity test for resistance
AUTO Autoranging
DC Direct current
AC Alternating current
DCAC AC + DC
Polarity, digits, and decimal points for primary display
°C Celcius temperature unit. Not applicable for the U3401A.
°F Fahrenheit temperature unit. Not applicable for the U3401A.
mV Voltage unit: mV, V
Getting Started 1
U3401A Quick Start Guide 3
Annunciator Description
μmA Current unit: μA, mA, A
μmnF Capacitance unit: μF, nF, mF
MkΩResistance unit: Ω, kΩ, MΩ
MkHz Frequency unit: Hz, kHz, MHz
Secondary display
Polarity, digits, and decimal points for primary display
μmnF Capacitance unit: μF, nF, mF
°C Celcius temperature unit. Not applicable for the U3401A.
°F Fahrenheit temperature unit. Not applicable for the U3401A.
% Duty cycle measurement
mV Voltage unit: mV, V
μmA Current unit: μA, mA, A
SShiftmode
MkΩResistance unit: Ω, kΩ, MΩ
2ND Secondary display is enabled. Not applicable for the U3401A.
AUTO Autoranging
DC Direct current
AC Alternating current
DCAC AC + DC
COMP Compare operation
dBm Decibel unit relative to 1 mW
CAL Calibration mode
EXT External. Not applicable for the U3401A.
TRIG Trigger mode
REMOTE Remote interface control. For calibration use only.
LOCAL Local mode
STO Store instrument state. Not applicable for the U3401A.
RCL Recall stored instrument state. Not applicable for the U3401A.
1GettingStarted
4U3401A Quick Start Guide
Getting Started
This section describes the basic step- by- step procedures on how to
operate the multimeter.
1Connect the power cord
2Adjust the carrying handle
Grasp the handle by the sides and pull outward as indicated by the red
arrows below.
Then, adjust the handle to the desired position.
NOTE
The line voltage switch and fuse are set at the factory according to the country of
destination.
Getting Started 1
U3401A Quick Start Guide 5
3Connect the test leads to the input terminals
4Turn on the multimeter
Push to turn on the multimeter. The front- panel display
illuminates while the multimeter performs its power- on self- test.
The multimeter powers up in the DC voltage function with autoranging
enabled. Typical display :
+
–
AC or DC voltage, frequency, or resistance measurement and
diode or continuity test.
+
–
AC or DC current
up to 10 A RMS
+
–
AC or DC current
1GettingStarted
6U3401A Quick Start Guide
5Select a function
Press one of the following keys to select a measurement function.
6Set the range
For most measurement functions, you can allow the multimeter to
select the range automatically by using the autoranging function, or you
can select a fixed range using manual ranging. The AUTO annunciator is
displayed when the autoranging function is selected.
7Using the secondary display
Press followed by a specified function keys such a , ,
, or to enable the secondary display mode.
Selects autoranging and disables manual ranging. Press
to toggle between the manual ranging and autoranging.
Selects a higher range and disable autoranging.
Selects a lower range and disable autoranging.
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