On Site Meter Calibrator

Multifunction hand-held Working Standard of power and energy for on site meter testing
The Working Standard is an accurate single-phase (WS 2110) and three-phase (WS 2310) meter for electrical power and energy measurement dedicated for electricity meter site testing. The device is manufactured in two accuracy
classes and is designed for operation in a single- and three-phase systems. It evaluates and displays all individual quantities per phase and cumulative quantities as well. The current inputs can be equipped with interchangeable low current sensors up to 6 (12) A, current clamp type sensors up to 120 A or flexible current probe up to 3000 A.The meter is based on precision A/D conversion and digital signal processing technology enabling accurate high-speed real time evaluation of all main and informative quantities. Beyond measurement of all powers, voltage, current and phases the meter can measure the wave-form parameters of the input signals. The device allows to set any value of the meter constant of the impulse output by the operator. This unique feature allows precision error evaluation with minimum integration period. The impulse output can be assigned to active, reactive or apparent energy or generate constant frequency for testing purposes.