1. PQube vs. X (instrument from competitors)
Go Green. Know your power.™
PQube vs. X (instrument from competitors)
©2009 Power Standards Lab 1 1

2. UL-recognized, TUV-certified, CE, JS, RoHS
PQube vs. X
Go Green. Know your power.™
Basic features
Instrument X
PQube
Why it’s
important
Basic accuracy
NIST-trace Certificate
±0.05% rdg ±0.05% FS
voltage at 256 samples per cycle
Yes
Every PQube has Certificate
Necessary for green energy applications, energy savings, credible measurements
Nominal Voltages for direct connection
100V - 690V,
1-phase, 3-phase, delta, wye/star
50/60 Hz
World-wide applications from a single model
Software required No
No software to learn.
No software to upgrade.
Network required
to be useful
Avoid battles with IT department, phone issues
Safety
UL-recognized, TUV-certified, CE, JS, RoHS
Safe, legal installation
Complete energy measurements
See next slides
Required to understand energy
Complete power quality measurements
Must record all types of PQ events to decide if PQ or not
Standard memory,
Expanded memory
4 GB
(2+ years of data)
32 GB
(16+ years of data)
Communication can be disrupted during PQ disturbances – backup is essential 2 2

3. Instrument X PQube Why it’s important
PQube vs. X
Complete Power Quality measurements
Go Green. Know your power.™
Instrument X
PQube
Why it’s
important
Built-in UPS
Yes
User-replaceable battery
Necessary for recording deep dips, interruptions
Dips/sags, swells, interruptions
IEC Class A
The most common events – Class A means
correct measurements
High-frequency impulses
Detects 1 microsecond
Lightning, inductive loads
Voltage THD, Current TDD
to the 63th harmonic
TDD per IEEE519 for correct measurements
RMS flicker
Arc furnaces, sensitive loads
Voltage unbalance
Transformer losses, overheating motors
Current unbalance
Easiest way to reduce power losses
Underfrequency and Overfrequency
Generator, UPS problems
Pre- and post-trigger waveforms, RMS graphs
256 samples per cycle waveforms, plus RMS signatures
Signatures of power problems
Daily, weekly, monthly trends and statistics
Includes cumulative probability
Compliance, and long-term predictions 3 3

4. Instrument X PQube Why it’s important
PQube vs. X
Go Green. Know your power.™
Complete Energy measurements (with PQube current module)
Instrument X
PQube
Why it’s
important
Amps, watts, volt-amps, VAR’s
Yes
Updated 5 times per second
Basic meters
Watt-hours, VA-hours, VAR-hours
Basic energy accumulators
true Power Factor
Easy to reduce costs
Daily, weekly, monthly trends graphs and spreadsheets
1-minute min/avg/max daily
5-min min/avg/max weekly
Understand opportunities, see where energy is going
Daily, weekly, monthly
load duration curves, stats
Identify peak demand opportunities
1-cycle peak demand
1-minute peak demand
10/15 minute peak demand
Circuit breaker sizing
UPS selection
Transformer ratings
Data storage
2+ years of 1-minute data
©2009 Power Standards Lab 4 4

5. Instrument X PQube Why it’s important
PQube vs. X
Go Green. Know your power.™
Easy communication (with optional ETH1 module)
Instrument X
PQube
Why it’s
important
Built-in server
Yes
Automatically sends
s to you.
POP, SMTP, MD5
Easiest network setup – fewest objections from IT department
Built-in web site server
Status, real-time meters, event graphs, trend graphs
View from any web browser, anywhere in world
Built-in FTP server
Transfer files to/from your computer
Built-in Modbus/TCP server
Read real-time meters from thousands of programs
Built-in network time synchronization
Perfect real-time sync anywhere in the world, with 2-second absolute accuracy
Fully functional without network
(works with or without network)
Quick installation – no IT department approvals needed. All files automatically available on pop-out SD card.
©2009 Power Standards Lab 5 5

6. Instrument X PQube Why it’s important
PQube vs. X
Go Green. Know your power.™
No software required – files on digital camera SD card
Instrument X
PQube
Why it’s
important
Software package required
No software required
No training, no software packages to install, no updates, no Windows® compatibility problems
Setup:
Thresholds, communication, preferences
Text file on SD card
Edit with any text editor. Send by , or copy onto SD card.
Output files: pictures
Yes
GIF pictures, in dual languages, straight from PQube SD card.
No software required.
Easy copy-paste into report. Discuss with engineers world-wide.
Output files: spreadsheets
Excel®-compatible CSV files, straight from PQube SD card.
Do your own analysis, graphing.
Output files: PQDIF
IEEE PQDIF files, straight from PQube SD card.
PQDIF is the IEEE Standard for power quality data – analyzed by dozens of programs
PRICE
(price)
(list of options included)
(no comment)
©2009 Power Standards Lab 6 6