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  • Фирмата разработва и произвежда прецизни измервателни уреди – еталони за електроенергия, токови трансформатори, анализатори за трифазни мрежи и коректори на фактора на мощността cos φ

    Монофазен еталон за енергия клас 0.1 и източник на ток до 120А

    Single-Phase Current Load with Energy Standard Class 0.1

    Download the brochure

    Application and brief description

    The EE-120A-1S unit consists of a single-phase energy standard class 0.1 and current load up to 120A.
    The unit performs testing of all types single-phase electricity meters using the voltage of the site.
    The meter error can be measured for active, reactive or apparent energy, in Manual Mode or with predefined Test Plans using the keyboard and the LCD display on the panel. Register Test,
    Starting Current Test and No Load Test can be performed too.
    The energy standard of the system can be used without the phantom load to test meters with customer load and perform analysis of the site – with direct measurement or with optional current clamps.
    The analysis includes drawing of waveforms, harmonic analysis and display of numerical values of power,
    power factor, voltage, current, phase shift, THD and frequency of the site.
    The test results of 100 test sites are stored in a non-volatile memory. All these files can be transferred to a PC via USB port or viewed on the display of the unit.
    All meter and analysis tests can be performed by a PC via EE software.


    • Compact, light weight, user friendly menu
    • Full control from the keyboard and LCD display on the panel, or from a PC via USB
    • Automatic meter error measurements, using predefined Test Plans

    • Powerful software with MySQL database
    • Option – Control via RS232 of EE-300V-1 – a Single-Phase Voltage Generator, creating an independent
    • Test System for laboratory or on-site measurement of single-phase electricity meters

    Functions and screens

    PC Screens Control from a PC via USB and LCD Panel Screens Control by the panel keys

    Analysis – table with display of V, I, φ, P, Q, S, cosφ, THD and f information

    EE Test System PC control screen
    EE Test System panel screen

    Harmonic analysis of the voltage and current wave forms (up to 39th harmonic)

    EE Test System PC control screen
    EE Test System panel screen

    Wave form display of voltage and current

    EE Test System PC control screen
    EE Test System panel screen

    Manual test of electricity meters – Wh, VARh, VAh; Error Measurement, Register Test, Starting Current Test, No Load Test, Maximum Demand Test

    EE Test System PC control screen
    EE Test System panel screen

    Automatic meter error test with predefined Test Plans

    EE Test System PC control screen
    EE Test System panel screen

    Technical data


    Power Supply 85 … 265VAC, 47 … 63Hz
    (Overvoltage protection up to 500VAC)
    Power Consumption max 150VA
    Dimensions WxDxH 400x320x175mm
    Weight 9.2kg
    Housing Rugged plastic case
    Operation Temperature Range -10°C … +50°C
    Storage Temp. -15°C … +65°C
    Relative Humidity < 95% non condensing
    Safety Tests IEC61010-1-2002, IEC61010-4-2002
    Over-voltage Category 300V Cat. IV
    Degree of Protection IP-30 (opened), IP-65 (closed)
    Declaration of Conformity CE Conform

    Single-Phase Current Load

    Current Range 0.001A … 120.000A
    Phase Shift 0.00° … 359.99°
    Output Power 60VA
    Accuracy ±0.1 % (10mA … 120A)
    Harmonic Distortion < 0.8 % (10mA … 120A)
    Frequency Synchronization 45Hz … 65Hz

    Single-Phase Standard

    Measuring Quantities Volts, Amps, Phase Shift, P, Q, S, Wh, VARh, VAh, PF, Frequency
    Isolated Pulse Inputs Scanning Head, Manual Button, KYZ, BNC High Frequency Input (Vcc = 12V, f ≤ 3MHz, I ≤ 0.1A)
    Isolated Pulse Output Programmable: 5 000 000 or 500 000 or 50 000 imp/kWh (Level 4 … 24V)
    Flash Memory 100 tests reviewable on the LCD display

    Standard Measurement Accuracy

    Quantity Range Error
    Voltage 30.00 … 500.00VAC ≤ ±0.05 %
      5 … 30VAC ≤ ±0.05 % *
    Current (direct) 12mA … 120A ≤ ±0.05 %
      1mA … 11.9mA ≤ ±0.05 % *
    Current (120A CC) 100mA … 120A ≤ ±0.2 %
      10mA … 99.9mA ≤ ±0.2 % *
    Wh / VArh / VAh (direct) 12mA … 120A ≤ ±0.1 %
    Wh / VArh / VAh (120A CC) 100mA … 120A ≤ ±0.2 % **
    Phase shift 0.00° … 359.99° ≤ ±0.015°
    Power Factor -1.000 … +1.000 0.001
    Frequency 40Hz … 70Hz 0.01Hz
    Temperature coefficient (V, A, VA) -10°C … 50°C ≤ 20ppm/K
    Temperature coefficient (W, VAr) -10°C … 50°C ≤ 30ppm/K

    * Error related to the maximum value of the range

    ** Error related to apparent energy (to be divided by the power factor)