Accuchek-1 is a rugged handheld device for error testing of single-phase energy meters installed in the field.  It supports both static and electro-mechanical meter types.  Its wide current range, from 20 mA to 60 A, facilitates testing of meters under a range of real-world load conditions.

Intuitive operation and automated error computation make Accuchek-1 one of the most widely-used in-field meter testing devices for utilities and service industries.



  • Service testing of energy meters

    Electricity meters are the main source of revenue for energy suppliers. Without accurate metering data the supplier will lose revenue. Suppliers are responsible for ensuring that metering is installed and maintained correctly, so that consumers are billed correctly. Meters are sometimes installed incorrectly, with wires swapped over, or with incorrectly configured instrument transformers.

    For these reasons it is essential to perform periodic in-service testing of meters and associated equipment.

  • Key Feature

    • Compact, portable unit for in-service accuracy testing of single-phase electricity meters
    • High accuracy (Class 0.2S with ring-type CT, or Class 0.5S in clamp-on mode)
      • Highly precise display of percentage error of the meter under test
      • Ring-type and clamp-on CTs for testing meter without disconnecting power supply
    • Optical sensor works with LEDs and with rotating disc indicators
      • Works with all electronic and electro-mechanical meters
    • Extensive data storage for test results
      • Internal non-volatile memory stores up to 175 test results
      •  Data can be downloaded to software (supplied with unit) for analysis and reporting
    • Ergonomic design for fatigue-free operation
      • Easy mounting arrangement
      • Simple menu-driven operation for meter testing
    • Specification
    • System architecture
    • Voltage:

      240 V ± 30%

      Current range:

      200 mA to 10 A with integral ring-type CT


      500 mA to 60 A with external clamp-on CT


       50 Hz ± 5%


      Class 0.2S with ring-type CT

      Class 0.5S with clamp-on CT


      0.9 kg (approx.)

      Dimensions (W x H x D):

      210 × 350 × 40 mm (approx.)


      RS-232 serial port for data transfer to analysis software (included)

      Optical scanner frequency range: Up to 200 Hz, un-modulated.


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