... power source technology, and operation software Test 3~60 various meters Comprises of PWM power sourceStandard meter configuration: wide-measurement- ... 5ma, accuracty:5%, starting power: accuracy 5%3~60 meters testing stations are availableBasic tests: intrinsic error test, hidden acction ... :1,500vaOn-line calibration can be conducted on 1p2w single-loop watthour meter and also off-line calibration on ...