Portable Power Quality Analyzer

The Elspec G4500 Blackbox Portable Power Quality Analyzer is tailored for PQ Analysis at any location. It features a quick and simple set up, remote connectivity with no missed events.

PQZIP inside

Continuous waveform recording Trigger free setup 5,000 power parameters @ 1/2 cycle resolution Easy deployment

Class A

Far surpassing the highest standards set by the industry, the BLACKBOX device series complies with standards for: aggregations, time clock uncertainty, flagging, and transient influence quantities.

Superior Accuracy

Elspec’s pioneering measurement method utilizes a dual-range gain of 2 x 16 Bit to yield, a superior accuracy far surpassing IEC 61000-4-30 Class A requirements, thereby capturing the finest details & deviations in Power Quality parameters.

Synchronized Monitoring

A unique time synchronization algorithm assures that logged data from multiple units is synchronized & displayed on the same time scale with typical 0.1 ms resolution. Every event on a grid is accurately analyzed for precise root cause analysis, behavior propagation, and traced to its source.


  • Optimizes protective equipment configuration and substation automation solutions
  • Ensures a reliable and consistent supply of energy
  • Evaluates the performance of breakers and relays
  • Identifies and manage peak demand
  • Real time power quality monitoring to meet any international standard
  • Produces detailed & comprehensive statistical records

Energy Consumer

  • Measures and analyzes system efficiency, provides solutions and increases profits
  • Negotiates capabilities with power providers
  • Detects electric bill inconsistencies
  • Avoids power quality compliance issues
  • Monitors and analyses power quality in real time

Continuous Waveform Recordings

The G4500 portable power quality analyzer is able to record and store all electrical waveform continuously for more than a year, with no gaps in the data. The G4500 portable power quality analyzer offers a clear and comprehensive picture of the conditions before, during, and after an event.

Supreme Trends Resolution

The G4500 portable power quality analyzer measures and records 5,000 power parameters continuously at a resolution of ½ cycles, 10/12 cycles, 150/180 cycles, 10 min and 2 hours of which, any given resolution is calculated for display and reporting purposes. Hence, there is no need to select which parameters to log, and more importantly, which parameters to ignore.

Harmonics & Inter-Harmonics Analysis

The G4500 portable power quality analyzer has two FFT engines for harmonics analysis: Cycle by Cycle: performs FFT at 1 cycle resolution for extended bandwidth. This engine provides 512 harmonics order at 50Hz resolution. 10/12 Cycles: performs FFT 10/12 cycles resolution for extended resolution and sub-grouping calculation. This engine provides the magnitude and angle of 512 spectrum components at 5Hz resolution.

Comprehensive Event Mechanism

The G4500 portable power quality analyzer is designed to detect any event occurring on your system. The mechanism allows you to configure events on any measured parameter (more than 1,000) and/or I/O ports. The event mechanism supports out-of-limit events as well as rate of changed limits. The G4500 analyzer is capable of recording waveform signals continuously. The event configuration doesn’t trigger the recording but rather stores summary logs including start and end time, duration, severity and magnitude of the event. All events can be displayed in a tabular or scatter charts as CBEME/ITIC.


Waveform Sampling

Voltage Sampling Rate

1024 Samples/Cycle

Current Sampling Rate

256 Samples/Cycle

Voltage Harmonics (Individual, Even, Odd, Total) Up to –


Current Harmonics (Individual, Even, Odd, Total) Up to –


Type of Analog to Digital Converter

16/201 bit

Storage Capacity

Internal Memory

32 GB/32TB2

Power Quality Analysis

transient Detection, Microseconds (50Hz/60Hz)


Communication Ports

Ethernet Ports


Wi-Fi Communications (802.11g)


Power Over Ethernet (PoE- Out)


Digital Input







Dimensions mm

314 X 84 X 271




Comprehensive web server for local and remote real-time monitoring and control

Applicable Standards

Measurement Standards

EN50160, IEEE1159, IEEE519, IEC61000-4-15, IEC61000-4-7, IEC61000-4-30 Class A
EMC Standards EN61326, CFR47FCC, CISPR11 Group 1, FCC PART 15 Subpart B,
EN61010-2, IEC61000-3-3, IEC61000-4-2, IEC61000-4-3,
IEC61000-4-4, IEC61000-4-5, IEC61000-4-6, IEC61000-4-11

Environmental Standards

IEC60068-2-1, 2, 6, 27, 30, 75

Safety Standards

 EN61010-1:2001 2nd Edition

Power Supply

Operating Range

100-260 VAC: 50/60 Hz 100-300 VDC

Auxiliary DC Supply

48 VDC

Auxiliary Supply

PoE In According to 802.3af

Battery Backup

2 Hours

Environmental Conditions

Operation Temperature

0°C – 50°C (32°F – 122 °F)

Storage Temperature

-20°C – 60°C (-4°F – 140 °F)

Time Synchronization

Real Time Clock

±1 Second per 24 Hours





SNTP Server




Voltage Channels

Voltage Channels

4 (3 Phases + Neut.)+ 1 DC

Nominal Full Scale


Maximum Peak Measurement


Input Impedance



0.1% of Nominal

Current Channels

Current Channels

4 (3 Phases + Neut.)+ 1Grn/DC

Current Channels Receive From Clamp

I1-I4: 0-10 VPk I5: 0-3 VPk


0.1% ±0.1 mV

Frequency Measurement

Fundamental Frequency

42.5 Hz to 69 Hz

Frequency Resolution

10 mHz

Frequency Accuracy

±10 mHz