... or active, reactive errors of a multifunction meter, also can calibrate watthour meter and varhour meter. 7. Output electric energy constant can ... . Users can, according to demand, select clamp meter with 5A, 10A, 100A, 200A, 500A, 1000A, 2000A current span or flexible ... transformer: 1mA~12A, automatic gear shift. Clamp meter: 5A, 10A, 20A, 100A, 200A, 500A, 1000A and 2000A for selection. Flexible ...