Go Green Know your power PQube vs

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

PQube vs. X Go Green. Know your power. ™ Basic features Instrument X Basic accuracy PQube ± 0. 05% rdg ± 0. 05% FS voltage at 256 samples per cycle Yes Why it’s important Necessary for green energy applications, energy savings, credible measurements NIST-trace Certificate Every PQube has Certificate Nominal Voltages for direct connection 1 -phase, 3 -phase, delta, wye/star 50/60 Hz Software required No No software to learn. No software to upgrade. Network required to be useful No Avoid battles with IT department, phone issues Safety UL-recognized, TUVcertified, CE, JS, Ro. HS Safe, legal installation Complete energy measurements Yes See next slides Required to understand energy Complete power quality measurements Yes See next slides Must record all types of PQ events to decide if PQ or not Standard memory, 4 GB Communication can be disrupted during PQ disturbances – backup is essential Expanded memory 100 V - 690 V, (2+ years of data) 32 GB (16+ years of data) World-wide applications from a single model 2

PQube vs. X Complete Power Quality measurements Instrument X Built-in UPS Go Green. Know your power. ™ PQube Yes User-replaceable battery Why it’s important Necessary for recording deep dips, interruptions Yes The most common events – Class A means correct measurements Yes Lightning, inductive loads Yes TDD per IEEE 519 for correct measurements RMS flicker Yes Arc furnaces, sensitive loads Voltage unbalance Yes Transformer losses, overheating motors Current unbalance Yes Easiest way to reduce power losses Underfrequency and Overfrequency Yes Generator, UPS problems Yes Signatures of power problems Yes Compliance, and long-term predictions Dips/sags, swells, interruptions High-frequency impulses Voltage THD, Current TDD Pre- and post-trigger waveforms, RMS graphs Daily, weekly, monthly trends and statistics IEC 61000 -4 -30 Class A Detects 1 microsecond to the 63 th harmonic 256 samples per cycle waveforms, plus RMS signatures Includes cumulative probability 3

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

PQube vs. X Go Green. Know your power. ™ Easy communication (with optional ETH 1 module) Instrument X PQube Why it’s important Yes Easiest network setup – fewest objections from IT department Yes View from any web browser, anywhere in world Yes Transfer files to/from your computer Yes Read real-time meters from thousands of programs Built-in e-mail server Automatically sends e-mails to you. POP, SMTP, MD 5 Built-in web site server Status, real-time meters, event graphs, trend graphs Built-in FTP server Built-in Modbus/TCP server Built-in network time synchronization Fully functional without network © 2009 Power Standards Lab www. Power. Standards. com Yes (works with or without network) Perfect real-time sync anywhere in the world, with 2 -second absolute accuracy Quick installation – no IT department approvals needed. All files automatically available on pop-out SD card. 5

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 e-mail, or copy onto SD card. Yes Easy copy-paste into report. Discuss with engineers world-wide. Output files: pictures GIF pictures, in dual languages, straight from PQube SD card. No software required. Output files: spreadsheets Excel®-compatible CSV files, straight from PQube SD card. No software required. Do your own analysis, graphing. Yes PQDIF is the IEEE Standard for power quality data – analyzed by dozens of programs (price) (no comment) Yes IEEE PQDIF files, straight from PQube SD card. No software required. Output files: PQDIF PRICE © 2009 Power Standards Lab www. Power. Standards. com (price) (list of options included) 6

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