... , voltmeter, power table and resistance meter calibration regulations, JJF1075-2001" clamp ampere ammeter calibration the requirements of the "standards for the ... dc analog output of digital instrument; All kinds of clamp ampere ammeter; Verification clamp ampere ammeter range for 200 A, 600 A ... .5 A, 2 A, 5 A, 10 A, 20 A; Clamp ampere ammeter range: 200 A, 600 A, 1000 A; Adjusting ...