Wattmeters

Wattmeters



Wattmeters are essential instruments for measuring electrical power in both AC and DC circuits, providing accurate readings of real, reactive, and apparent power. They are widely used in laboratories, industrial environments, energy monitoring systems, and research applications to ensure devices and systems operate efficiently and safely.



Our wattmeters combine high precision, reliability, and versatility, making them suitable for a broad range of applications, including:

  • Power consumption measurement in electronic devices and circuits

  • Energy efficiency testing

  • Electrical system diagnostics and troubleshooting

  • Industrial equipment monitoring and maintenance



El Eslèk offers a complete line of wattmeters designed to meet the needs of engineers, technicians, and educators. With features such as digital display, real-time data logging, multi-channel measurement, and compact or benchtop designs, our wattmeters provide accurate, repeatable, and easy-to-use solutions for any testing scenario.



Whether for education, research, industrial monitoring, or energy auditing, our wattmeters help users optimize performance, reduce energy loss, and gain precise insights into electrical power consumption.



Wattmeters

Active filters

IT9100 Series - Powermeters



Logo ITECH




References

IT9121 Powermeter, 600 V, 20A

IT9121E Powermeter, 600 V, 20A, without harmonics measurement

IT9121C Powermeter, 600 V, 50A

IT9121H Powermeter, 1000 V, 20A




The IT9100 Power Meter is a high-performance instrument capable of handling up to 1000 Vrms and 50 Arms, with a measurement bandwidth of 100 kHz. It provides precise and simultaneous measurement of voltage, current, power, frequency, harmonics, and other electrical parameters.

Equipped with standard USB, RS232, and LAN interfaces, as well as connections for USB-based peripheral devices, the IT9100 allows users to save measured data directly to external storage media. Its basic voltage and current measurement accuracy is 0.1%, ensuring reliable and precise readings.

With its extensive integration functions, including active power and energy measurement, the IT9100 is ideal for applications in motor testing, household appliances, UPS systems, and more.




Key Features

  • 4.3-inch color TFT LCD display for clear visualization of measurements
  • Input range: 1000 Vrms / 50 Arms
  • Simultaneous measurement of voltage, current, power, harmonics, and other electrical parameters
  • High measurement accuracy: 0.1% for voltage and current
  • Harmonics measurement: capable of measuring up to the 50th harmonic (*optional for IT9121E)
  • Comprehensive integration functions: includes energy measurement for both consumption and supply
  • Flexible data storage: save measured parameters to external media via USB-based peripheral support
  • Standard communication interfaces: USB, RS232, and Ethernet

The IT9100 combines accuracy, versatility, and ease of use, making it an essential tool for precise electrical testing and analysis.



GPM-8213 – Digital Power Meter



Logo GW Instek




Reference

  • GPM- 8213 : Digital Power Meter




Key Features

  • 4” TFT LCD
  • Two display modes: Standard and Simple
  • Standard: 2 major + 6 secondary measurements
  • Simple: 4 measurement parameters
  • Accepted for SPEC Power® testing
  • Compliant with IEC 62301 power measurement
  • Voltage/current test frequency bandwidth: DC ~ 6 kHz
  • Watt resolution: 1 mW
  • Minimum current range: 5 mA, resolution 0.1 µA
  • Current/voltage measurements: CF=3 (distorted wave), CF=6 (half range)
  • Integration W-h / A-h function
  • Total harmonic distortion measurement
  • Front panel test terminals
  • Standard interfaces: RS-232C, USB Device, LAN
  • Optional interface: GPIB
  • Optional test fixture: GPM-001



GPM-8310 – Digital Power Meter



Logo GW Instek




Reference

  • GPM-8310 : Wattmètre numérique




Key Features

  • 5” TFT LCD
  • Voltage/current test bandwidth: DC, 0.1 Hz ~ 100 kHz
  • Two numeric display modes: General (2 main + 8 secondary), Simple (4 main)
  • Waveform display: V (voltage), I (current), P (power)
  • CF for distorted waveform: 3, half-range CF: 6 or 6A
  • Accepted for SPEC Power® testing
  • Harmonic measurement up to 50th order, numeric and bar graph
  • Integration function with automatic level-changing
  • External current sensor inputs (EXT1/EXT2)
  • Standard interfaces: RS-232C, USB Device / Host, LAN, GPIB
  • Optional interface: Digital I/O (DA4, factory-installed)



GPM-8330 / GPM-8320 Digital Power Meter



Logo GW Instek




References

  • GPM-8320 : Digital Power Meter, two measurement modules
  • GPM-8320G : Digital Power Meter, two measurement modules
  • GPM-8330 : Digital Power Meter, three measurement modules
  • GPM-8330G : Digital Power Meter, three measurement modules




Overview

The GPM-8330 and GPM-8320 Digital Power Meters are high-precision instruments designed for accurate electrical power measurement and analysis. Equipped with a 5-inch TFT LCD display, these devices provide a wide measurement bandwidth for voltage and current. They allow detailed waveform visualization, harmonic analysis, and comprehensive power measurements in compliance with international standards.




Key Features

  • 5-inch TFT LCD color display
  • Voltage and current measurement bandwidth: DC, 0.1 Hz to 100 kHz
  • Waveform display for Voltage (V), Current (I), and Power (P)
  • Distorted waveform measurement capability:
    • Full range for CF = 3
    • Half range for CF = 6 (or 6 A)
  • Compliant with IEC 61000-4-7 harmonic measurement standard (50/60 Hz)
  • Selectable wiring configurations: 1P3W, 3P3W, 3P4W, 3V3A
  • Harmonic measurement and analysis up to the 50th order
  • Auto-ranging function for integration mode
  • Screen capture via USB Host
  • External current sensor input support (EXT1 / EXT2)




Interfaces

Standard Interfaces:

  • RS-232C
  • USB Device / USB Host
  • LAN




Optional Interface:

  • GPM-DA12 – GPIB + Digital I/O interface (factory installed only)



GPM-8330-60 & GPM-8320-60 - Digital Power Meters



Logo GW Instek




References

  • GPM-8320-60 : Digital Power Meter 60A, two measurement modules
  • GPM-8320-60G : Digital Power Meter 60A, two measurement modules, GPIB, DA12
  • GPM-8330-60 : Digital Power Meter 60A, three measurement modules
  • GPM-8330-60G : Digital Power Meter 60A, three measurement modulesGPIB, DA12




Key Features

  • 5” TFT LCD display
  • Voltage/Current test bandwidth: DC, 0.1 Hz to 100 kHz
  • Direct input current up to 60 A
  • Waveform display: Voltage (V), Current (I), Power (P)
  • Distorted current/voltage measurement: full range CF=3, half range CF=6 (or 6 A)
  • Compliant with IEC 61000-4-7 harmonic measurement (50 Hz / 60 Hz)
  • Wiring selection button: 1P3W, 3P3W, 3P4W, 3V3A
  • Harmonic measurement & analysis up to 50 orders
  • Auto-ranging function for Integration mode
  • Screen capture via USB host
  • External current sensor inputs (EXT1/EXT2)