Anritsu ML248 A Series User manual

ML248xA / ML249xA
Wideband Peak Power Meter
Operation Manual
ML2487A and ML2488A software release 2.00
ML2495A and ML2496A software release 2.00
Originated by Anritsu Ltd, EMD, Stevenage, U.K. P/N: 13000-00162
REVISION: E
CREATED September 2005
COPYRIGHT 2005
ANRITSU

Crossed-out Wheeled Bin Symbol
Equipment marked with the Crossed-out Wheeled Bin Symbol complies with the
European Parliament and Council Directive 2002/96/EC (the “WEEE Directive”) in
European Union.
For Products placed on the EU market after August 13, 2005, please contact your local
Anritsu representative at the end of the product's useful life to arrange disposal in
accordance with your initial contract and the local law.

13000-00162 i
September 2005
Warranty
The Anritsu product(s) listed on the title page is (are) warranted against defects in
materials and workmanship for one year from the date of shipment. Anritsu’s obligation
covers repairing or replacing products that prove to be defective during the warranty
period. Buyers shall prepay transportation charges for equipment returned to Anritsu for
warranty repairs. Obligation is limited to the original purchaser. Anritsu is not liable for
consequential damages.
Limitation of Warranty
The foregoing warranty does not apply to Anritsu connectors that have failed due to
normal wear. Also, the warranty does not apply to defects resulting from improper or
inadequate maintenance by the buyer, unauthorized modification or misuse, or operation
outside of the environmental specifications of the product. No other warranty is expressed
or implied, and the remedies provided herein are the buyer's sole and exclusive remedies.
Notice about Documentation
Anritsu has prepared this manual for use by Anritsu personnel and customers as a guide
for the proper installation and operation of Anritsu equipment and computer programs.
The drawings, specifications, and information contained herein are the property of Anritsu.
Any unauthorized use or disclosure of these drawings, specifications, and information is
prohibited; they shall not be reproduced, copied, or used in whole or in part as the basis
for manufacture or sale of the equipment or software programs without the prior written
consent of Anritsu Limited.
Trademark Acknowledgements
Adobe and Acrobat Reader are registered trademarks of Adobe Systems Incorporated.

ii 13000-00162
September 2005
Safety Symbols
To prevent the risk of any personnel injury or loss related to equipment malfunction,
Anritsu uses the following symbols to indicate safety-related information. For your own
safety, please read this information carefully BEFORE operating the equipment.
Symbols Used in This Manual
Danger Indicates a very dangerous procedure that could result in serious
injury or death if not performed properly.
Warning Indicates a hazardous procedure that could result in serious injury or
death if not performed properly.
Caution Indicates a hazardous procedure or danger that could result in light-
to-severe injury, or loss related to equipment malfunction, if proper
precautions are not taken.
Safety Symbols Used on Equipment and In Manuals
Some or all of the following five symbols may be used on Anritsu equipment. In addition,
there may be other labels attached to products that are not shown in the diagrams in this
manual.
The following safety symbols are used inside or on the equipment near operation locations
to provide information about safety items and operation precautions. Ensure that you
clearly understand the meanings of the symbols and take the necessary precautions
BEFORE operating the equipment.
This symbol indicates a prohibited operation. The prohibited
operation is indicated symbolically in or near the barred circle.
This symbol indicates a compulsory safety precaution. The required
operation is indicated symbolically in or near the circle.
This symbol indicates warning or caution. The contents are indicated
symbolically in or near the triangle.
This symbol indicates a note. The contents are described in the box.
These symbols indicate that the marked part should be recycled.

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September 2005
For Safety
Always refer to the operation manual when working near locations
at which the alert mark, shown on the left, is attached. If operation
is performed without heeding the advice in the operation manual,
there is a risk of personal injury. In addition, the equipment
performance may be reduced.
Moreover, this alert mark is sometimes used with other marks and
descriptions indicating other dangers.
or
When supplying AC power to this equipment, connect the
accessory 3-pin power cord to a 3-pin grounded power outlet. If a
grounded 3-pin outlet is not available, use a conversion adapter
and ground the green wire, or connect the frame ground on the
rear panel of the equipment to ground. If power is supplied without
grounding the equipment, there is a risk of receiving a severe or
fatal electric shock.
The operator cannot repair this equipment. DO NOT attempt to
remove the equipment covers or to disassemble internal
components. Only qualified service technicians with knowledge of
electrical fire and shock hazards should service this equipment.
There are high-voltage parts in this equipment presenting a risk of
severe injury or fatal electric shock to untrained personnel. In
addition, there is a risk of damage to precision components.
If this equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may
be impaired.

iv 13000-00162
September 2005
Declaration of Conformity (ML248xA)
Manufacturer’s Name: Anritsu Limited European Measurement Division
Manufacturer’s Address: Rutherford Close
Stevenage, Hertfordshire
United Kingdom
declares that the product specified below:
Product Name : Peak Power Meter
Model Number : ML2487A / ML2488A
conforms to the requirements of:
EMC Directive 89/336/EEC as amended by the Council Directive 92/31/EEC & 93/68/EEC
Low Voltage Directive 73/23/EEC as amended by Council directive 93/68/EEC
Electromagnetic Interference:
EN61326:1997 + Amd 1:1998 Class A
EN61000-3-2:2000
EN61000-3-3:1995
Electrical Safety Requirement:
Product Safety: EN61010-1:2001
Anritsu Limited 26th Nov. 2003
Date Nick Orchiston, Quality Assurance Manager
European Contact:- For Anritsu product EMC & LVD information contact Anritsu Limited, EMD, Wiltron
House, Rutherford Close, Stevenage Herts, SG1 2EF UK, (FAX [phone])

13000-00162 v
September 2005
Declaration of Conformity (ML249xA)
Manufacturer’s Name: Anritsu Limited European Measurement Division
Manufacturer’s Address: Rutherford Close
Stevenage, Hertfordshire
United Kingdom
declares that the product specified below:
Product Name : Power Meter
Model Number : ML2495/6A
conforms to the requirements of:
EMC Directive 89/336/EEC as amended by the Council Directive 92/31/EEC & 93/68/EEC
Low Voltage Directive 73/23/EEC as amended by Council directive 93/68/EEC
Electromagnetic Interference:
EN61326:1998 + A1 + A2 + A3
EN61000-3-2:2000
EN61000-3-3:1995
Electrical Safety Requirement:
Product Safety: EN61010-1:2001
Anritsu Limited 19th Sept. 2005
Date Nick Orchiston, Quality Assurance Manager
European Contact:- For Anritsu product EMC & LVD information contact Anritsu Limited, EMD, Wiltron
House, Rutherford Close, Stevenage Herts, SG1 2EF UK, (FAX [phone])

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September 2005
Table of Contents
Warranty ................................................................................................................... i
Limitation of Warranty............................................................................................... i
Notice about Documentation .................................................................................... i
Trademark Acknowledgements ................................................................................ i
Safety Symbols........................................................................................................ ii
For Safety ............................................................................................................... iii
Declaration of Conformity (ML248xA) .................................................................... iv
Declaration of Conformity (ML249xA) ..................................................................... v
Chapter 1. About this Manual....................................................................................1-1
Purpose and Scope of this Manual.............................................................................1-2
Your Comments on this Manual .................................................................................1-2
Software Versions.......................................................................................................1-2
Notification of Software Release.................................................................................1-2
Using this Manual .......................................................................................................1-3
Associated Documentation and Resources................................................................1-5
Notation Conventions Used in this Manual.................................................................1-6
Chapter 2. Product Overview.....................................................................................2-1
About the ML248xA / ML249xA Peak Power Meter ...................................................2-2
Model Types ...............................................................................................................2-2
Features......................................................................................................................2-3
Options and Accessories ............................................................................................2-4
Associated Sensors ....................................................................................................2-5
Sensor Accessories ....................................................................................................2-6
Associated Products ...................................................................................................2-6
Chapter 3. Assembly and Connections .....................................................................3-1
Initial Inspection ..........................................................................................................3-2
Shipped Items.............................................................................................................3-2
Storage and Repackaging ..........................................................................................3-3
Preparation for Storage ........................................................................................3-3
Environmental Requirements ...............................................................................3-3
Preparation for Shipment......................................................................................3-3
Rack Mounting............................................................................................................3-3
Single Unit Rack Mounting (Option 01) ................................................................3-4
Tools Required .....................................................................................................3-4
Assembly Procedure ............................................................................................3-5
Side-by-Side Rack Mounting (Option 03) .............................................................3-8
Tools Required .....................................................................................................3-9
Assembly Procedure ............................................................................................3-9
Power Requirements ................................................................................................3-12

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September 2005
Environmental Requirements ................................................................................... 3-12
Rear Panel Connections........................................................................................... 3-13
Chapter 4. Front Panel Layout and Operation ..........................................................4-1
Power-On Procedure.................................................................................................. 4-2
The Front Panel.......................................................................................................... 4-3
The Numeric Keypad.................................................................................................. 4-4
The Hard Keys............................................................................................................ 4-6
The Screen ................................................................................................................. 4-7
Sensor Information............................................................................................... 4-8
Channel Information............................................................................................. 4-9
Status Bar .......................................................................................................... 4-12
The Soft Keys ........................................................................................................... 4-13
Dialog Boxes ...................................................................................................... 4-15
The Connectors ........................................................................................................ 4-16
Data Entry Procedure ............................................................................................... 4-17
Numeric Entry Example ..................................................................................... 4-17
Text Entry........................................................................................................... 4-18
Power-Off Procedure................................................................................................ 4-18
Chapter 5. Common Procedures...............................................................................5-1
“How Do I …” Quick Reference Table ........................................................................ 5-2
Channel .................................................................................................................... 5-10
Understanding and Setting Up the Channels ........................................................... 5-10
Sensor Inputs ..................................................................................................... 5-10
Channels ............................................................................................................ 5-10
Modes ................................................................................................................ 5-10
Measurement Displays....................................................................................... 5-11
Channel Configuration Overview ....................................................................... 5-12
Selecting the Measurement Mode............................................................................ 5-13
Selecting the Measurement Type............................................................................. 5-14
Selecting the Measurement Display Style................................................................5-16
Selecting the Sensor Input (ML2488A and ML2496A only) .....................................5-17
Setting the Units of Measurement ............................................................................5-19
Selecting the Resolution........................................................................................... 5-20
Entering the Settling Percentage.............................................................................. 5-21
Selecting Dual Display Channel Mode .....................................................................5-22
Setting Up the Second Channel......................................................................... 5-22
Displaying Both Channels Simultaneously............................................................... 5-23
Understanding Triggering ......................................................................................... 5-24
Selecting the Triggering Mechanism ........................................................................5-25
Selecting the Type of Triggering .............................................................................. 5-26
Entering the Triggering Capture Time ...................................................................... 5-27

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Random Repetitive Sampling (RRS) (ML249xA only)........................................5-28
Entering the Triggering Delay ...................................................................................5-29
Enabling Auto Triggering ..........................................................................................5-30
Entering the Triggering Level....................................................................................5-31
Setting the Trigger Bandwidth (ML249xA only) ........................................................5-32
Selecting the Trigger Arming Method .......................................................................5-33
Entering a Frame Arming Level and Duration ..........................................................5-34
Setting the Sampling Rate ........................................................................................5-35
Selecting the Trigger Indicator (ML249xA only)........................................................5-36
Linking the Channel Trigger Settings........................................................................5-37
Gates and Fences ....................................................................................................5-38
Setting Up and Enabling Gates and Fences.............................................................5-39
Viewing Gating Patterns ...........................................................................................5-41
Setting the Active Gate .............................................................................................5-42
Setting Up Repeat Gates ..........................................................................................5-43
Averaging..................................................................................................................5-44
Setting Up Averaging................................................................................................5-44
Enabling Averaging in Pulsed/Modulated Mode .......................................................5-45
Enabling Averaging in CW Mode..............................................................................5-46
Restarting Averaging in Pulsed/Modulated Mode.....................................................5-46
Markers .....................................................................................................................5-47
Setting Markers.........................................................................................................5-47
Turning all Markers Off .............................................................................................5-48
Setting and Viewing the Active Marker .....................................................................5-49
Positioning the Active Marker ...................................................................................5-49
Positioning the Delta Marker.....................................................................................5-50
Setting the Delta Marker Calculation ........................................................................5-51
Linking the Delta Marker to the Active Marker..........................................................5-51
Moving the Active Marker to the Maximum Point .....................................................5-52
Moving the Active Marker to the Minimum Point ......................................................5-52
Zooming In or Out on the Active Marker...................................................................5-52
Measuring the Pulse Rise Time................................................................................5-53
Measuring the Pulse Fall Time .................................................................................5-54
Measuring the Pulse Width.......................................................................................5-55
Measuring the Off Time ............................................................................................5-56
Measuring the Pulse Repetition Interval ...................................................................5-57
Setting the Search Target Levels .............................................................................5-58
Setting the Duty Cycle in CW Mode .........................................................................5-59
Limits.........................................................................................................................5-60
Creating and Viewing Simple Limits .........................................................................5-60
Creating and Saving Complex Limits........................................................................5-61
Recalling User or Predefined Complex Limits ..........................................................5-63