Megger PA-9 Series User manual

AVTMP9P
Rev. I
January 2009
Instruction Manual
Megger PA-9Series User
and
MegPa9IEC Software
Manual
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Valley Forge Corporate Center
2621 Van Buren Avenue
Norristown, PA 19403 U.S.A.
www.megger.com

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Copyright 2008 by Megger. All rights reserved.
The information presented in this manual is believed to be adequate for the intended use of the product.
If the product or its individual instruments are used for purposes other than those specified herein,
confirmation of their validity and suitability must be obtained from Megger. Specifications are subject to
change without notice.
Megger
Valley Forge Corporate Center
2621 Van Buren Avenue
Norristown, PA 19403 U.S.A.
Tel.: [phone]
Fax: [phone]
www.megger.com

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AVTMP9P Rev. I January 2009 i
TABLE OF CONTENTS
1 INTRODUCTION ...............................................................................................................................................1
2 OVERVIEW........................................................................................................................................................5
Power Analyzer Operation .................................................................................................................................7
Sample Rate...........................................................................................................................................................7
Response Time .....................................................................................................................................................7
Storage Interval.....................................................................................................................................................7
Demand Interval ..................................................................................................................................................7
Out-of-Limits Recording ....................................................................................................................................8
Sub-Cycle Event Capture....................................................................................................................................8
Frequency Recording...........................................................................................................................................8
Exceedance-Only Recording ..............................................................................................................................9
Capturing Waveform ...........................................................................................................................................9
Waveform Capture Impact on Memory ...........................................................................................................9
Memory Full Condition.......................................................................................................................................9
Recording Times ............................................................................................................................................... 10
AC Power and Charging the Battery .............................................................................................................. 13
Battery Backup .............................................................................................................................................. 13
Battery Conditioning .................................................................................................................................... 13
Energy Conservation ........................................................................................................................................ 14
Communications ............................................................................................................................................... 14
Setting the Real-Time Clock............................................................................................................................ 14
Selecting Inputs ................................................................................................................................................. 14
Power Measurement Theory-- For Power Measurements Using 1 Less Wattmeter than Lines....... 15
3 SAFETY............................................................................................................................................................. 19
Warnings and Safety Precautions.................................................................................................................... 19
Safety Precautions ............................................................................................................................................. 19
4 INSTALLATION ............................................................................................................................................ 21
Installation Procedure....................................................................................................................................... 21
Battery Charging............................................................................................................................................ 22
Low-Battery ................................................................................................................................................... 22
Installation...................................................................................................................................................... 22
Unit Power Connections ............................................................................................................................. 22
Voltage and Current Connections.............................................................................................................. 23
Current Probe Direction Hook Up Check................................................................................................ 23
Current Probe Range Verification.............................................................................................................. 23
Wireless Modem Connection (PA9Wireless only)................................................................................... 24
Input Ratio Verification............................................................................................................................... 24
Verify Setup Parameters............................................................................................................................... 24
Verify Required Inputs................................................................................................................................. 24

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5 OPERATION and SCREEN DESCRIPTIONS...........................................................................................27
User Controls......................................................................................................................................................27
Turning the Power Analyzer ON/OFF .........................................................................................................28
About Screen..................................................................................................................................................29
Programming and On-Site Adjustments ........................................................................................................29
Erasing Stored Data ......................................................................................................................................30
Changing Setups.............................................................................................................................................30
Recording ............................................................................................................................................................30
Start Recording...............................................................................................................................................31
Recording Mode Off Screen Description ..................................................................................................31
Recording Mode Off.....................................................................................................................................32
Stop Recording...............................................................................................................................................32
Recording Mode On Screen Description...................................................................................................32
Recording Mode On......................................................................................................................................33
Recording and Loss of Input Power...........................................................................................................33
A Word About Screen Descriptions ...............................................................................................................34
Home Screen ......................................................................................................................................................34
Status Screen.......................................................................................................................................................35
Readings Screen..................................................................................................................................................36
Stored Data Screen ............................................................................................................................................36
Test Log ..........................................................................................................................................................37
Waveform Log ...............................................................................................................................................39
Event Log .......................................................................................................................................................42
Event Summary..............................................................................................................................................42
RMS Intervals.................................................................................................................................................43
Demand Intervals ..........................................................................................................................................43
Phasor ..................................................................................................................................................................44
Harmonics Screen..............................................................................................................................................45
To Select/Make Changes:.............................................................................................................................46
Setup Screen........................................................................................................................................................47
Specify Inputs.................................................................................................................................................47
Select Setup.....................................................................................................................................................48
Setup Display..................................................................................................................................................49
Required Inputs..................................................................................................................................................49
Stored Setups..................................................................................................................................................50
Input Ratios ....................................................................................................................................................50
Options................................................................................................................................................................51
Special ..................................................................................................................................................................51
Record Control ..............................................................................................................................................52
Erase Data.......................................................................................................................................................52
Removable Card.............................................................................................................................................53
Contrast Control............................................................................................................................................53

TABLE OF CONTENTS
AVTMP9P Rev. I January 2009 iii
6 HOW TO . . ....................................................................................................................................................... 55
Purpose ............................................................................................................................................................... 55
Functions and Data........................................................................................................................................... 55
Menu of Screens............................................................................................................................................ 55
Battery (Voltage and Status), Memory Available, Recording Status, Date, Time, Stored Events and
Tests, Active Setup ....................................................................................................................................... 55
Default Screen ............................................................................................................................................... 55
Erasing Stored Data, Record Control........................................................................................................ 56
Record—ON/OFF...................................................................................................................................... 56
Harmonics and Direction of Harmonic Screen ....................................................................................... 56
(RMS, Demand Intervals), Event Summary, Event Log, Test Log ...................................................... 56
Unit Options Installed.................................................................................................................................. 56
Phasor Diagrams........................................................................................................................................... 56
Real-Time Readings...................................................................................................................................... 56
View Stored Setups, Select Setup, Specify Inputs, Input Ratios, Setup Display, Required Inputs... 57
Unit Part Number, Firmware Version, Unit Serial Number, Date of Last Calibration, Owner
Specified Text Lines ..................................................................................................................................... 57
7 REMOVABLE COMPACT FLASH OPTION.......................................................................................... 59
Automatic Data Transfer ................................................................................................................................. 61
8 WIRING DIAGRAMS .................................................................................................................................... 63
Notes on Wiring Diagrams.............................................................................................................................. 63
Floating Wye Neutral Measurement .......................................................................................................... 77
9 TROUBLESHOOTING................................................................................................................................... 79
Battery Reset for the Megger PA-9Series ...................................................................................................... 79
10 SPECIFICATIONS ........................................................................................................................................ 81
11 MegPa9 IEC SOFTWARE and MODEM SOFTWARE........................................................................... 85
Megger End User License Agreement ........................................................................................................... 87
Getting Started................................................................................................................................................... 89
System Requirements ................................................................................................................................... 89
Installing Metrosoft®.................................................................................................................................... 89
Metrosoft®Main Window ........................................................................................................................... 90
About Metrosoft®.............................................................................................................................................. 91
Communication Setup...................................................................................................................................... 92
Directory Setup.................................................................................................................................................. 93
Verify Communication with the Analyzer..................................................................................................... 94
How to Create New Metrosoft®Windows Setup Files Save Them and Program a Unit..................... 96
Raven Wireless Modem Setup Instructions ................................................................................................ 109
Upgrading Firmware in Analyzer.................................................................................................................. 113
Resetting the Analyzer.................................................................................................................................... 114

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Get and View Test Data from the Analyzer ............................................................................................... 115
Transferring Files to and from a Compact Flash Card .............................................................................117
Verify the Compact Flash Card Readers Drivers are Installed Properly............................................ 117
Importing a Data File from a Compact Card......................................................................................... 117
Exporting a Setup File to a Compact Flash Card ..................................................................................120
Clearing or Copying a Setup file from the Compact Flash Card......................................................... 121
Remote Operation .......................................................................................................................................... 122
Clearing Test Results at the Analyzer (Remote Operation) ................................................................. 123
Searching For and Retrieving Stored Test Data......................................................................................... 135
Searching For Data Files............................................................................................................................ 135
Creating a Chart Using Metrosoft®.............................................................................................................. 136
Select the Desired Test to be Charted ..................................................................................................... 136
Advanced Charting Features..................................................................................................................... 147
Report Generation .......................................................................................................................................... 151
To Create a Report using Metrosoft®:..................................................................................................... 151
Side Bar ........................................................................................................................................................ 168
Edit File Information................................................................................................................................. 169
File Information.......................................................................................................................................... 170
Harmonic Analysis.......................................................................................................................................... 172
EN50160 Report............................................................................................................................................. 176
PA-9 Series Modem Configuration .............................................................................................................. 178
PA-9 Series Modem Operation ................................................................................................................ 178

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AVTMP9P Rev. I January 2009 v
PROPRIETARY INFORMATION NOTICE
This document contains information proprietary to Megger. All rights are reserved.
No part of this document may be reproduced, transmitted, processed or recorded by any
means or form, electronic, mechanical, photographic or otherwise, nor be released to any
third party without the express written consent of Megger.

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AVTMP9P Rev. I January 2009 vii
Warranty Clause
Megger warranties each new product manufactured and sold to be free from defects in
material, workmanship and construction, and that when used in accordance with this
manual, will perform to applicable specifications for a period of one year after shipment.
If examination by Megger discloses that the product is or has been defective, then our
obligation is limited to repair or replacement of the defective unit or its components, at
our option.
The foregoing warranty constitutes Megger's sole liability and is in lieu of any other
warranty of merchantability or fitness. Megger shall not be responsible for any incidental
or consequential damages arising from any breach of warranty.
Disclaimer: The PA9 Wireless unit should be used for data analysis and not for real
time monitoring and/or control applications.
Service Information
In the event the Megger PA-9Series Power Analyzer or MegPa9IEC Metrosoft®for Windows
appears defective, call the Megger service department at 610-676-8500. The Service
Department will determine the cause of the apparent malfunction and provide the
necessary support to correct the problem. In some cases, problems can be corrected
over the telephone. Therefore, before returning any equipment to the factory for service,
discuss all problems with the Service Department. Web Site Information: www.megger.com
is our web site containing product information, software information and upgrades, what
is new, patches and more.
Service Contracts are available on request.
Equipment Return
Prior to returning the Megger PA-9Series Power Analyzer, you must obtain Return
Authorization from the Megger Service Department
610-676-8500. Each shipment must have a packing slip, which includes:
1. A list of all items enclosed with applicable serial numbers.
2. Reason for returning (e.g. malfunction, described in detail).
3. Billing and shipping address for return.
4. Copy of Purchase Order if billing charges are applicable.
5. Actual Package returned must have our RMA label on it.

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viii AVTMP9P Rev. I January 2009
Returns must be properly packaged with transportation charges prepaid to Megger;
return transportation charges will be F.O.B. factory. Send returns to:
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Valley Forge Corporate Center
2621 Van Buren Avenue
Norristown, PA 19403 U.S.A.
610-676-8500 (Telephone)
610-676-8610 (Fax)
Attention: Service Department
IMPORTANT!
Megger periodically provides updates of unit firmware and software. These updates may
include enhancements that improve the performance of your unit. See our web site
www.megger.com to obtain these download updates.
SEE ALL OF OUR PRODUCTS, APPLICATION NOTES, FAQ’s BY PRODUCT,
AND LOCAL REP INFORMATION ON THE WEB AT: www.megger.com

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AVTMP9P Rev. I January 2009 1
1
INTRODUCTION
Congratulations on your purchase of the Megger PA-Series Power Analyzer. Be assured
that your unit has been designed with emphasis on reliability, simplicity and ease of use.
It will provide you with the information you need to investigate customer power quality
complaints and compliance situations, verify billing, and pinpoint locations of high
demand and power consumption.
PURPOSE OF THIS MANUAL
This document is the operator manual for the Megger PA-9Series Power Analyzer. It
provides a description of the operation of the unit as well as installation and operating
instructions. Read this manual before installing or using the equipment. Special emphasis
should be placed on all safety discussions.
AUDIENCE
This manual is written for technical personnel who are familiar with the various
measurements performed by power analyzers and have a general understanding of their
use and operation. Such personnel should also be thoroughly familiar with the hazards
associated with the use of this equipment and should have received proper safety
training.

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CUSTOMER FEEDBACK
We listen to our customers very seriously when they express interest in or suggest new or
modified features. Please feel free to call, e-mail, fax, or write with any comments or
suggestions you may have. We can be contacted at the following:
By Phone: [phone] Ask for Sales
By Fax: [phone]
By Website: www.megger.com
By Mail: Megger
Valley Forge Corporate Center
2621 Van Buren Avenue
Norristown, PA 19403 U.S.A.

INTRODUCTION
AVTMP9P Rev. I January 2009 3
MANUAL CONVENTIONS
This manual uses the following conventions:
Bold indicates emphasis or a heading.
NOTE: is used to set off important information from the rest of the
text.
F
A WARNING symbol alerts you to a hazard that may
result in equipment damage, personal injury, or
death. Carefully read the instructions provided and
follow all safety precautions.
G
A CAUTION symbol alerts you that the system may
not operate as expected if instructions are not
followed.

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2
OVERVIEW
The Megger PA-9Series is a portable, nine-channel analyzer capable of performing
functions on four AC/DC voltages and five current inputs.
In addition to the Power Analyzer, your system includes the MegPa9IEC Metrosoft®for
Windows, a user-friendly, menu driven software package that allows you to program the
unit within minutes. This is accomplished by creating a setup on a computer using
MegPa9IEC and uploading it to the
Megger PA-9Series. Each unit can store up to 60 user-defined setups. Should you need to
change setups on site, you may select any of your 60 setups using the Power Analyzer’s
front panel controls. The software package is also used to download recorded Power
Analyzer data, perform database searches, and more.
Some of the Power Analyzer’s features include:
powered from VA input 90-600 VAC or 110-600 VDC
(no separate power source required)
auxiliary power input port, 90 to 250 VAC, standard
contains rechargeable battery backup
12 megabyte of non-volatile memory for data storage, standard
5 x 1-1/2 LCD provides alphanumeric and graphic displays
simultaneously records power quality and power flow information*
measures power for single phase, split phase, and three phase systems using 1, 2, 2-
1/2, and 3 element wattmeters*
* with Power Flow option
samples at 256 samples/cycle per channel and MegPa9IEC can perform harmonic
analysis through the 63rd harmonic
performs continuous or exceedance-only recording
displays real-time values and graphs and records them for downloading to a
computer using MegPa9IEC
with the power flow option installed, when used as a Demand Meter, records either
fixed or sliding window demand data
Recorded power quality and power flow parameters include: (Power Flow is an option)

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True RMS voltage, minimum RMS voltage, and maximum RMS voltage
True RMS current, minimum RMS current, and maximum RMS current
watts, per phase pair and total system
vars, per phase pair and total system
voltamps, apparent power per phase and total system
true power factor (watts divided by voltamps)
displacement power factor (cosine of the angle between the fundamental of voltage
and current)*
kilowatt hours, per phase and total system
kilovar hours, per phase and total system
kilovoltamp hours, per phase and total system
harmonic direction from source or load
harmonic magnitude and phase shift
up to 1000 out-of-limits events, with time stamp and duration
sub-cycle events to 65μs resolution (at 60Hz)
waveform capture using selectable triggers
Out of Limits Trending
Frequency Trending
IEC Flicker Trending
THD Trending
TDD Trending
Harmonic Trending

OVERVIEW
AVTMP9P Rev. I January 2009 7
Power Analyzer Operation
The following sections describe the basic operations of the Megger PA-9Series unit.
There are several time intervals that are used by the Megger PA-9Series for storing and
calculating RMS voltage, current, and other power related parameters. These time
intervals are: sample rate, response time, RMS storage interval, and demand interval.
Sample Rate
The sample rate is simply the rate at which the input voltages and currents are sampled
and is fixed at 256 samples/cycle per channel. The Analyzer uses a phase-lock loop to
ensure that each cycle is measured 256 times. The voltage frequency on Phase A is
measured and that frequency determines the period of the sampling.
Response Time
Response time determines how many samples will be used to calculate
RMS V and I values. Think of response time as resolution. How sensitive do you want
the analyzer to be? The software allows you to set the response time to 1, 2, 3, 4, 5, 10,
12, 15, 20, 30 or 60 cycles. If, for example, you select a 2-cycle response time, the Power
Analyzer will use 512 samples (256 samples x 2 cycles) for the calculation. This will be
repeated every two cycles, and a single RMS value will be stored awaiting the end of the
data storage and/or demand interval.
Storage Interval
The RMS storage interval dictates how often the minimum RMS, average RMS, and
maximum RMS values of voltage and current will be stored. At the end of each storage
interval the minimum, maximum, and average values of the stored RMS values will be
saved to memory. The data storage interval can be set from MegPa9IEC to be cycles,
seconds, minutes or hours. The minimum data storage interval can be set to one-cycle
and the maximum to six hours.
MegPa9IEC automatically computes the maximum recording time for you based on the
selections you make when creating a setup. When recording in the Stop When Full
mode, the Status Screen on the unit’s LCD shows how much time is left before memory
is filled.
Demand Interval
The demand interval dictates how often power related parameters (voltage, current, KW,
KVA, KVAR, True and Displacement Power Factors, KWH, KVAH, KVARH, etc.) are
recorded. The demand interval can be set using
MegPa9IEC from one-minute to one-hour for a fixed demand window. The demand
interval for a sliding window can be set from 15 minutes to 1 hour with a 1-minute or 5
minute demand storage rate.

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The Megger PA-9Series computes power related parameters on a per phase basis. For
each phase, the voltage and current are sampled simultaneously to eliminate phase angle
error due to sampling skew. Integration over the demand interval gives true power for
that phase.
A summation of the response intervals is done to calculate RMSvolt/RMScurr and
Power Calculations.
NOTE: Power Factor is either leading, lagging or in phase. The
Power Analyzer indicates a lagging power factor by placing a
plus sign (+) ahead of the value, and leading power factor by
placing a negative sign (-) ahead of the value.
Out-of-Limits Recording
The MegPa9IEC software allows you to program the Power Analyzer to save detailed
information on out-of-limits events. This function runs parallel to the set recording
mode to obtain minimum RMS, average RMS, and/or maximum RMS values per storage
interval. The unit compares the response time measured value against the programmed
voltage and/or current limits (upper, lower, and total harmonic distortion). Upon
detection of an out-of-limit event, it records event data. This data includes the date and
time the event started and stopped, the duration of the event, and the maximum,
minimum and average RMS values on all inputs during the event timeframe.
The Megger PA-9Series has the capacity to record 1000 out-of-limit events.
NOTE: It is highly recommended that limits always be set and turned
on. This may yield valuable information. Since out-of-limit
data resides in separate dedicated memory, recording time is
not sacrificed by using this feature. If waveform capture is on,
then memory will be affected.
Sub-Cycle Event Capture
The Power Analyzer can detect events as short as 65 µs at 60Hz. To use this feature, the
sub-cycle event capture must be enabled and the limits set. Sag and swell limits must also
be enabled. The unit will compare each sample within the present cycle to each
corresponding sample of the previous cycle. Any time a single sample differs from the
corresponding sample by more than the programmed limit, a sub-cycle event occurs.
This event data includes the trigger source, time of, duration, and exceedance value.
They are logged in the out-of-limits reports, and reported as sub-cycle.
Frequency Recording
The MegPa9IEC software will allow you to program the Power Analyzer to record
frequency. The Power Analyzer will record the frequency of the voltage input on Phase
A of the recorder (Channel 1 Input).

OVERVIEW
AVTMP9P Rev. I January 2009 9
Exceedance-Only Recording
Using the MegPa9IEC software, the Power Analyzer can be programmed to record on
exceedance-only using defined limits. This mode saves memory and allows for longer
recording time than the continuous recording mode.
For exceedance-only recording, you specify the high and/or low limits. The Power
Analyzer compares the measured value against the thresholds and will start recording
when at least one input exceeds them. Recorded data includes the Minimum RMS,
Average RMS, and Maximum RMS readings during the exceedance. Also recorded is any
storage parameters setup in the program. Recording will continue until all inputs are in
the normal range again.
Capturing Waveform
The Megger PA-9Series can be programmed to capture and save waveform data on either
a time or event triggered basis. On a time basis, you can program how often waveforms
will be recorded and how many cycles to record. On the event triggered basis (includes
RMS limits, sub-cycle event, and THD event), the unit will save the response time trigger
cycles up to (2) pre-trigger and 99 post-trigger cycles.
MegPa9IEC will provide from this data total harmonic distortion (THD), harmonic
analysis, amplitude and phase shift data in addition to the Minimum RMS, Average RMS
and/or Maximum RMS values per storage interval. The recorded data can be displayed
alphanumerically and graphically on the unit’s LCD. This data can also be downloaded
for computer viewing using MegPa9IEC.
Waveform Capture Impact on Memory
To calculate how much memory waveform capture used, perform the following
calculation.
(Sample rate PA9 Wireless) x (2) x (Number of Waveform Captures Recorded) x (Number of Channels On) x (Program Setup Post Trig + Pre Trig + 1) = Memory Used
NOTE: This is an approximate formula.
Memory Full Condition
Based on user selected functions and programming, the MegPa9IEC automatically
configures the non-volatile memory into separate blocks. At some point during
recording, the Power Analyzer may fill its memory with data. You can program the unit
to either stop recording when out of memory, or to continue recording by wrapping to
the start of memory. This will result in overwriting the oldest recorded data with recent
data. In both the Stop When Full mode and the Wrap Around mode the unit will need
to stop recording to be downloaded. To view differences of maximum record times for
different memory modes, recalculate maximum record time in
MegPa9IEC with each memory mode selection.

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Recording Times
When programming the Power Analyzer, MegPa9IEC will calculate your recording time
based on the programmed setup. When performing these calculations, the software also
takes into account the number of inputs being used, the number of values being saved
(Minimum RMS, Average RMS, and/or Maximum RMS), the memory capacity, demand
interval, whether or not to capture waveform, the waveform capture rate, and expected
events, if any.
NOTE: The analyzer itself does not take into account
UNEXPECTED events when calculating record time.
Waveform capture can have a big impact on recording time. Should your unit stop
recording before expected, check to see how many waveform captures were recorded.
You can then enter this number into the expected waveform # of events box under
program/waveform in the MegPa9IEC software. Click CALCULATE MAX RECORD
TIME to see how your record time was impacted by actual waveforms captured.
For tests that stop recording earlier then expected, view the following screen. From
Home select Stored Data/Test Log/the stored test of interest/Statistics. This screen shows you
the stop condition for this test.
Overall Statistics
Start Time: XX/XX/XX XX:XX:XX.XXX
Duration: X days XX:XX:XX hrs
Stop Condition: Normal – Local or Power Loss
Lost at: N/A or XX/XX/XX XX:XX:XX.XXX
Restored at: N/A or XX/XX/XX XX:XX:XX.XXX
↓↓