Audio Precision Portable One Plus Access User manual

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Portable One Plus Access
User’s Manual
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Portable One Plus Access
User’s Manual
Version 2
June 2001
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Audio Precision Portable One Plus Access User’s Manual
Copyright © 1998, 2001 by Audio Precision, Inc. All rights reserved. No part o
this document may be reproduced or transmitted in any orm or by any means,
electronic or mechanical, including photocopying, recording, or by any in ormation
storage and retrieval system, without permission in writing rom the publisher.
Audio Precision®, System One®, System One + DSP, System Two,
FASTTEST®, APWIN, Portable One®, Accessand Dual Domain® are
trademarks or registered trademarks o Audio Precision, Inc.
This mark signi ies that the product con orms to all applicable
requirements o the European Community. A Declaration o
Con ormance is included with the user in ormation that describes the
speci ications used to demonstrate con ormity.
Published by:
Printed in the United States o America
Audio Precision Part # 8211.0029
Audio Precision, Inc.
PO Box 2209
Beaverton, Oregon 97075-2209
U.S. Toll ree: 1-800-231-7350
Tel: [phone] ax: 503-641-8906
email: [email protected]
Web: audioprecision.com
®
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CONTENTS
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Introduction to this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Introducing the Portable One Plus Access . . . . . . . . . . . . . . . . . . . . 1-1
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
ront Cover and Tilt Bail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Connecting Mains Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . 2-3
ront Panel Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Rear Panel Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Options Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Typical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
External Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Concepts and Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Balanced vs. Unbalanced . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Analyzer Inputs and Generator Outputs . . . . . . . . . . . . . . . . . . . . . 3-2
Trigger Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Monitor Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Printer Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
GPIB Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
CONTRAST Knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
INSTRUMENT MODE Keys – Navigating the Panels . . . . . . . . . . . . . . 4-1
RECALL/SAVE Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Soft Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Portable One Plus Access User's Manual iii
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UNCTION Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
INPUT Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
OUTPUT Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
REQUENCY Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
AMPLITUDE Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
dBr Zero Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
MONITOR Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Setup Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Screen Saver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Controlling the Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Generator Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Generator Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Generator Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Controlling the Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Analyzer Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Input Selection Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
UNCTION Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
UNCTION Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23
THD+N (Total Harmonic Distortion plus Noise) . . . . . . . . . . . . . . 4-25
SPECIAL SECTION: Understanding THD+N . . . . . . . . . . . . . . . . . . 4-29
What Signa is Dominant? . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Se ecting Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Changes with Frequency . . . . . . . . . . . . . . . . . . . . . . . . 4-34
Changes with Amp itude . . . . . . . . . . . . . . . . . . . . . . . . 4-35
THD+N at 100% (or 0 dB) . . . . . . . . . . . . . . . . . . . . . . . . 4-36
Iso ating Sources of THD+N . . . . . . . . . . . . . . . . . . . . . . . 4-37
SINAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38
Phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40
IMD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43
Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45
W+ (Wow and lutter) . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-48
XTALK (Crosstalk) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-51
AC Mains (Power Line Monitor) . . . . . . . . . . . . . . . . . . . . . . . 4-53
Gen Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55
Bargraphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-57
Sweeps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-59
External Sweeps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63
Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63
Saving and Recalling Setups . . . . . . . . . . . . . . . . . . . . . . . . . 4-68
Printing Saved Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-70
iv Portable One Plus Access User's Manual
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Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-71
Amplitude units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-71
SPECIAL SECTION: Is it dBm or dBu? . . . . . . . . . . . . . . . . . . . . . . 4-73
Power units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-74
requency units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-75
Phase units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-76
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
requency Response of
Amplifiers, Mixing Consoles, Etc. . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Audio Transmission Link Testing . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Analog Tape Recorder Alignment and Performance Verification . . . . . . 5-2
Reproduce Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Record-Reproduce Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Compact Disc Players . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Detailed Technical Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Generator Output Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Analyzer Input Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Cable Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Balanced Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Unbalanced Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Unbalanced Stereo Connections . . . . . . . . . . . . . . . . . . . . . . . 6-11
Appendix A - Units Quick Reference . . . . . . . . . . . . . . . . . . . . . . . 7-1
Appendix B - Option ilter Installation . . . . . . . . . . . . . . . . . . . . . . 8-1
Appendix C - Monitor Source Selection . . . . . . . . . . . . . . . . . . . . . 9-1
Appendix D - Line Voltage and use Selection . . . . . . . . . . . . . . . . . 10-1
Checking the Selected Line Voltage . . . . . . . . . . . . . . . . . . . . . . . 10-1
Changing the Line Voltage Selection . . . . . . . . . . . . . . . . . . . . . . 10-2
Checking the use Block Orientation . . . . . . . . . . . . . . . . . . . . . . 10-3
Changing the use Block Orientation . . . . . . . . . . . . . . . . . . . . . . 10-4
Checking the uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Appendix E - ilter Shapes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
Appendix - Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
Appendix G - Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
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vi Portable One Plus Access User's Manual
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Safety Information
Do NOT service or repair this product unless properly quali ied.
Servicing should be per ormed only by a quali ied technician or an
authorized Audio Precision distributor.
Do NOT de eat the sa ety ground connection. This product is
designed to operate only rom a 50/60 Hz AC power source (250 Vrms
maximum) with an approved three-conductor power cord and sa ety
grounding. Loss o the protective grounding connection can result in
electrical shock hazard rom the accessible conductive sur aces o this
product.
For continued ire hazard protection, uses should be replaced ONLY
with the exact value and type indicated on the rear panel o the
instrument and discussed on page 10-5 o this manual. The AC
voltage selector also must be set to the same voltage as the nominal
power source voltage (100, 120, 230, or 240 Vrms) with the
appropriate uses. Di erent uses are required depending on the line
voltage.
The International Electrotechnical Commission (IEC 1010-1) requires
that measuring circuit terminals used or voltage or current
measurement be marked to indicate their Installation Category. The
Installation Category is de ined by IEC 664 and is based on the
amplitude o transient or impulse voltage that can be expected rom
the AC power distribution network. This product is classi ied as
INSTALLATION CATEGORY II, abbreviated “CAT II” on the
instrument ront panel.
Do NOT substitute parts or make any modi ications without the written
approval o Audio Precision. Doing so may create sa ety hazards.
This product contains lithium batteries. Dispose only in accordance
with applicable regulations.
This product is or indoor use - pollution degree 2.
Portable One Plus Access User's Manual vii
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Safety Symbols
The ollowing symbols may be marked on the panels or covers o
equipment or modules, and are used in this manual:
WARNING! - This symbol alerts you to a potentially hazardous
condition, such as the presence o dangerous voltage that could pose a
risk o electrical shock. Re er to the accompanying Warning Label or
Tag, and exercise extreme caution.
ATTENTION! - This symbol alerts you to important operating
considerations or a potential operating condition that could damage
equipment. I you see this marked on equipment, consult the User’s
Manual or Operator’s Manual or precautionary instructions.
FUNCTIONAL EARTH TERMINAL - This symbol marks a terminal
that is electrically connected to a re erence point o a measuring circuit
or output and is intended to be earthed or any unctional purpose
other than sa ety.
PROTECTIVE EARTH TERMINAL - This symbol marks a terminal that
is bonded to conductive parts o the instrument. Con irm that this
terminal is connected to an external protective earthing system.
Safety Information
viii Portable One Plus Access User's Manual
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Introduction to this Manual
This is the primary operator’s manual or the Portable One Plus
Access. It describes all o the instrument’s eatures and unctionality.
Audio Precision makes every e ort to make the instrument simple and
easy to use. However, some background in audio testing may be
necessary in order to understand all aspects o this manual and the
unctionality o the Portable One Plus Access.
The irst chapter is a basic introduction to the instrument and this
manual. It includes a section on symbols which are used or your
sa ety and the table o contents.
The second chapter explains how to set up the instrument. This is the
place to start i you want to get up and running right away.
The third chapter discusses the external connections to the Portable
One Plus Access. You will want to read this section or instructions on
connecting to the device-under-test, printers, oscilloscopes, or other
equipment.
The ourth chapter is about operating the instrument. It describes the
buttons and knobs, the in ormation shown on the display, and how to
control every aspect o the instrument.
The i th chapter is about applying the Portable One Plus Access to
speci ic real-world situations. I you are involved in any o the
situations listed in this chapter, you may ind some use ul hints.
The sixth chapter contains technical diagrams o the internals o the
instrument. While not necessary to operate the Portable One Plus
Access, these diagrams may allow advanced users to apply it more
intelligently and understand its limitations.
Appendixes include a quick re erence to available units, instructions on
changing the option ilters, audible monitor source and AC mains
voltage, instructions or running the instrument’s sel test, and complete
instrument speci ications.
&This symbol is
used throughout
this manual to
direct you to more
information on
related topics.
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Intro uction to this Manual
x Portable One Plus Access User's Manual
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Introducing the Portable One Plus Access
The Audio Precision Portable One Plus Access is a comprehensive
two-channel analog audio test instrument. It eatures the ollowing
measurement unctions:
.
Level (two channels simultaneously)
.
Noise or signal-to-noise ratio (wideband, weighted, or selective)
.
THD+N (total harmonic distortion plus noise)
.
Interchannel phase or phase shi t through a device
.
SMPTE/DIN intermodulation distortion (optional)
.
Real-time two-channel amplitude ratio (interchannel balance or
device gain/loss)
.
Real-time requency-selective crosstalk
.
Wow and Flutter
.
SINAD (ratio o {signal + noise + distortion} to {noise +
distortion})
.
Loading (AC resistance o the input o a device connected to
the generator output)
.
AC mains check (voltage, requency, and distortion o the AC
power line)
Figure 1-1. Portable One Plus Access
1
Introduction
Portable One Plus Access User's Manual 1-1
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The Portable One Plus Access can sweep most o these measurements
across a user-speci ied requency or amplitude range and display a
graph o the results. The graph top and bottom values may be set by
the user, even a ter a sweep, with the data dynamically re-scaling.
A ter sweeping, a cursor may be used to provide numeric readout o
any point on the graph. Measurements may also be displayed on an
analog-style bargraph with a user-selectable range.
The Portable One Plus Access is capable o generating low-distortion
sine and square wave orms, plus an intermodulation distortion test
signal (with purchase o intermodulation distortion option).
Measurements may be displayed in a wide variety o units, including
the ollowing:
.Volts
.dBm (with a user-speci ied impedance re erence)
.dBu
.dBV
.dBr (dB relative to a stored measured value)
.dBg (dB relative to the present generator output amplitude)
.Watts (with a user-speci ied impedance re erence)
.Hz/kHz
.% or dB or relative measurements
The chosen units are remembered or each measurement unction, so
when you return to that unction, the same units will be automatically
displayed.
The ollowing band-limiting and noise-weighting ilters are provided:
.Standard 22 Hz-22 kHz audio bandpass
.30 kHz and 80 kHz lowpass
.400 Hz highpass
.Tunable 1/3 octave bandpass
.A-weighting (ANSI/IEC-A)
.CCIR weighting
.Sockets or two optional ilters, selectable rom a wide variety
1Introduction
Intro ucing the Portable One Plus Access
1-2 Portable One Plus Access User's Manual
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The selected ilter or each measurement unction is remembered, so
that next time you use that unction the same ilter will be selected.
Printer support is provided, allowing printout o high-resolution graphs,
ast screen dumps, numerical data rom sweeps or sel -test, and
printout o bargraph displays.
Signals within the audible range can be monitored using the built-in
loudspeaker or with user-supplied headphones. An external volume
control is provided.
Up to 30 complete panel setups can be stored in internal memory so
that common test setups can be easily recalled. This memory persists
even when the unit is unplugged. In addition, test setups can be
stored with a set o data, so that ield test results can be saved or later
analysis or printing.
All measurements, settings, and graphs are displayed on a sharp, clear,
backlighted liquid crystal display.
The Portable One Plus Access can be purchased with or without the
‘P1-IMD’ option, which allows generation and analysis o
Intermodulation Distortion test signals.
The Portable One Plus Access may also be purchased with the ‘EURZ’
option, which replaces the 150 Ωgenerator output impedance with
200 Ω, which is more common in European broadcast applications.
Another option is ‘P1DD-488’, which provides GPIB capabilities or
connection to computer-controlled automation systems.
Other options include a so t carrying case and optional ilters or
speci ic band-limiting or weighting applications.
Any installed options are listed on the Options Label on the rear panel.
&For more
information on the
Options Label, see
page 2-8.
1
Introduction
Intro ucing the Portable One Plus Access
Portable One Plus Access User's Manual 1-3
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NOTES:
1Introduction
Intro ucing the Portable One Plus Access
1-4 Portable One Plus Access User's Manual
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Getting Started
Front Cover and Tilt Bail
The two square blue buttons on top o the instrument are releases or
the protective ront cover. Press these buttons (as shown in the
ollowing igure), and then pivot the cover down to a horizontal
position and slide it into the storage slot below the ront panel .
Notice that on the inside o the cover are simpli ied operation
instructions or use as a quick reminder o common eature usage.
Cover Release
Buttons
Figure 2-1. Cover Release Buttons
2
etting Started
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The tilt bail is used to elevate the ront o the instrument or more
com ortable viewing. It is located on the bottom o the instrument, near
the ront. Normally it will be latched into its storage position. To use
it, pivot it out toward the ront panel and rest the instrument on it, as
shown in the ollowing igure:
Tilt Bail
Figure 2-2. Tilt Bail
2Setting Up
Getting Starte Front Cover an Tilt Bail
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Connecting Mains Supply Voltage
Be ore plugging the unit in or the irst time, it is a good idea to veri y
that the power supply line voltage selection is correct. The units are
con igured at the actory or the expected voltage at their intended
destination, so usually the voltage will be correct unless the unit has
been transported into another area.
The supply voltage indicator is located on the rear panel o the
instrument next to the power plug. A small white plastic indicator tip
identi ies the line voltage setting as 100V, 120V, 230V, or 240 V.
The ollowing diagram shows the location o the voltage indicators:
In one o the holes should be a small white plastic indicator tip
showing which line voltage is currently selected. I the selected voltage
is not the same as the line voltage in your area, see Appendix D or
instructions on changing the line voltage selection.
Once the line voltage selection is correct, connect the line cord rom
the power outlet to the power cord connector and move the power
switch to the ‘On’ position (marked ‘1’).
I
O
FUSE REPLACEMENT DATA
230/240 VAC 250mA T/SB 250V
100/120 VAC 500mA T/SB 250V
SUPPLY VOLTAGE FUSE
MAXIMUM POWER: 60 VA
FRE UENCY: 50/60 Hz.
100/120/230/240 VAC
SUPPLY VOLTAGE:
TRIGGER SIGNALS
INPUT ANALOG DIGITAL
BAL
BAL
UNBAL UNBAL
5Vpp MAX
5Vpp MAX
OPTICAL OPTICAL
MONITORS
INPUT
REFERENCE DIGITAL OUTPUT DIGITAL INPUT
Manufacture in Beaverton, Oregon, USA
PARALLEL PRINTER
IEEE-488 INTERFACE
5,247,458; 5,420,516; 5,336,989. Other patent applications pending.
4,614,914; 4,563,652; 4,631,522; 5,089,981; 5,136,267; 5,265,201;
This product is protected by one or more of the following patents:
INSTRUMENT RESET
To restore factory default instrument settings,
hold dBr button and turn on mains power switch.
To set instrument GPIB address, use utility menu
under PANELS selection on front panel.
GPIB
ADDRESS
RL1, PP0, DC1, DT1, C0, E1
SH1, AH1, T6, TE0, L4, LE0, SR1,
PORTABLE ONE
R
ANALYZER
100 V
120 V
230 V
240 V
Date of manufacture Code
Audio Measurement System
PORTABLE ONE PLUS
Aux 2:
Aux 1:
Opt'l Filters:
Installe Options:
Special
EGZ Euro. Impedances
P1P-488 GPIB Inter.
P1-IMD Intermod. Distortion
LINE VOLTAGE
INDICATOR HOLES
POWER CORD
CONNECTOR
POWER
SWITCH
Figure 2-3. Location of Voltage In icators
2
etting Started
Connecting Mains Supply Voltage Getting Starte
Portable One Plus Access User's Manual 2-3
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Front Panel Overview
.SOFT KEYS - These six keys have a variety o purposes
depending on what is displayed on the screen. In most cases,
the upper buttons change display units and the lower buttons
change parameters shown just above each button on the display.
.LCD DISPLAY - This is where all readings, graphs, and
operating parameters are displayed. It also shows the current
unctions o the lower so t keys. The display contrast is
controlled by the CONTRAST control. I no buttons are pressed
or two hours, the ‘screen saver’ will be invoked, and the display
will darken to preserve the use ul li etime o the display.
Touching any key will turn it on again.
.dBr KEY - This key is used to set the dBr re erence or
measurement to the current measured value. When saving and
recalling setups, it provides some additional so t key unctions.
.FUNCTION KEYS - These keys select the measurement to be
per ormed by the analyzer.
&CONTR ST
control - page 4-1.
&dBr and other
units- page 4-71.
&Saving and
recalling setups -
page 4-62.
&FUNCTION KEYS -
page 4-17.
&Screen saver-
page 4-10.
dBr ZERO
350 Vpk MAX
PRINT
INSTRUMENT MODE
PANELS BARGRAPH SWEEP
MONITOR CONTRAST RECALL
SAVE
CAT II
FUNCTION
dBr ZERO
LEVEL
PHASE
RATIO
XTALK
GEN
LOAD
THD+N
SINAD
IMD
W+F
AC MAINS
CHECK
AMPL
NOISE
ANALYZER INPUTS
GENERATOR OUTPUTS
PORTABLE ONE PLUS
OUTPUT
AMUTE B
GEN
AB
INPUT
AMPLITUDE
DEC
+10dB
INC
-10dB
FREQUENCY
-10
INC
10
x
.
.
DEC
BA
AB
!
350 Vpk MAX
!
CAT II
350 Vpk MAX
PRINT
INSTRUMENT MODE
PANELS BARGRAPH SWEEP
MONITOR CONTRAST RECALL
SAVE
CAT II
FUNCTION
dBr ZERO
LEVEL
PHASE
RATIO
XTALK
GEN
LOAD
THD+N
SINAD
IMD
W+F
AC MAINS
CHECK
AMPL
NOISE
ANALYZER INPUTS
GENERATOR OUTPUTS
PORTABLE ONE PLUS
OUTPUT
AMUTE B
GEN
AB
INPUT
AMPLITUDE
DEC
+10dB
INC
-10dB
FREQUENCY
-10
INC
10
x
.
.
DEC
BA
AB
!!
CAT II
PORTABLE ONE PLUS
!
SOFT KEYS Br KEY
FUNCTION
KEYS FREQUENCY
CONTROLS
AMPLITUD
E
CONTROLS
INPUT
CONTROL
KEYS
OUTPUT
CONTROL
KEYS
INSTRUMENT
MODE KEYS
RECALL/SAVE
KEY
MONITOR AND
CONTRAST
CONTROLS
ANALYZER
INPUTS
GENERATOR
OUTPUTS
LCD DISPLAY
PORTABLE ONE PLUS
Figure 2-4. Front Panel Overview
2Setting Up
Getting Starte Front Panel Overview
2-4 Portable One Plus Access User's Manual
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com