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儀表測(cè)量范圍與消耗:

儀表型號(hào)	測(cè) 量 范 圍	直  流  電  阻	電      感
D19-mA	10/20mA 25/50mA 50/100mA 100/200mA 150/300mA 250/500mA	≈3400/850Ω ≈540/135Ω ≈124/31Ω ≈28/7Ω ≈14/3.5Ω ≈4.4/1.1Ω	≈2400mH/600mH ≈400mH/100mH ≈120mH/30mH ≈24mH/6mH ≈16mH/4mH ≈4mH/1mH
T19-A	0.5/1A 1/2A 2.5/5A 5/10A	≈1.08/0.27Ω ≈0.28/0.07Ω ≈0.08/0.02Ω ≈0.02/0.005Ω	≈1.2mH/0.3mH ≈0.24mH/0.06mH ≈0.04mH/0.01mH ≈0.012mH/0.003mH
T19V	7.5/15V 15/30V 30/60V 50/100V 75/150V 150/300V 300/600V	≈15/60Ω ≈60.5/250Ω ≈240/960Ω ≈666/2664Ω ≈1250/5000Ω ≈5000/20000Ω ≈12000/48000Ω	──── ──── ──── ──── ──── ────           ────