．基本+/- 0.1%的准确度 ．电压、电流与瓦特皆为true rms 量测 ．电压及电流具有手动或自动的换档功能，及自动换档之频率量测 ．使用4 1/2位类比数位转换器为基准，提供高准确度、高解析度及高稳定度的量测 ．使用3个多工的显示器，可依所需来选择，且均可选择所有的量测功能(vrms, arms, vrms, pf, va, var, hz) ．具有电压三段、电流三段及瓦特九段的输入档位选择 ．自动保存关机前之设定状态，关机后自动回复原先设定 ．输入电流峰值超过档位警告
系列规格
item
voltage
current
input circuit type
resistive voltage divider
shunt input
rated input (range rms)
2012: 20/200/600v
2012/14: 200ma/2a/20a
input impedance
approx. 1m
2012: approx. 10m
max. input (at 50/60hz)
600vrms
2012: 20arms/50apeak
range se-lection
2012 : auto range,
a/d conversion
4 1/2 digits adc
input filter
2012 : none,
input terminal
2012: screw terminal,
量测功能
item
voltage / current
effective power
frequency range
2011/12: 10hz to 20khz, 2014 : 10hz to 50khz, 2015: 10hz to 5khz
crest factor
“3” at rated input
operating principle
ture rms
display accuracy 10hz to 45hz 45hz to 66hz 66hz to 2khz 2khz to 10khz 10khz to 50khz
0.15% of rng + 0.2% of rdg 0.1% of rng + 0.1% of rdg 0.1% of rng + 0.1% of rdg 0.15% of rng + 0.2% of rdg 0.15% of rng + 0.2% of rdg +( 0.3%＊(f-10khz))
0.2% of rng + 0.2% of rdg 0.1% of rng + 0.1% of rdg 0.12% of rng + 0.1% of rdg 0.15% of rng + 0.2% of rdg+( 0.3%＊(f-2khz)) 0.15% of rng + 0.2% of rdg +( 0.5%＊(f-10khz))
