Cov yam ntxwv ntawm cov digital multimeter
1. Kev ntsuas ntau
(1) AC thiab DC voltage (AC zaus ntawm 45Hz ~ 500Hz); ntau yam yog 200mV, 2V, 20V thiab 1000 tsib qib, DC qhov tseeb ntawm ± (0.8% ntawm kev nyeem +2 lo lus) lossis tsawg dua, AC qhov tseeb ntawm ± (1% ntawm kev nyeem +5 lus); Input impedance, DC cov ntaub ntawv rau 10MΩ, AC cov ntaub ntawv rau 10MΩ, 100PF.
(2) AC thiab DC tam sim no
Ntau yam ntawm 200μA, 2mA, 200mA thiab 10A tsib qib, DC qhov tseeb ntawm ± (1.2% ntawm kev nyeem + 2 cov lus), AC qhov tseeb ntawm ± (2.0% ntawm kev nyeem ntawv {{9}) } cov lus), * qhov loj tshaj plaws voltage load ntawm 250mV (AC RMS).
(3) Kuj:
Qhov ntau yog: 200Ω, 2kΩ, 200kΩ, 20MΩ thiab 20MΩ rau qib. Qhov tseeb yog ± (2.0% ntawm kev nyeem + 3 lo lus).
(4) diode conduction voltage:
Qhov ntau yog {{0}} ~ 1.5V, thiab qhov ntsuas tam sim no yog 1mA ± 0.5 mA.
(5) Triode -value nrhiav tau:
Test tej yam kev mob yog: VCE=2.8V, IB=10μA.
(6) Kev kuaj xyuas luv luv:
Test Circuit Court kuj<20Ω±10Ω
2. Sampling time: TS=0.4S.
Digital Multimeter Txheej txheem cej luam
Cov multimeter digital yog peb-thiab-ib-ib-nrab-tus lej LCD zaub me me digital multimeter. Nws tuaj yeem ntsuas AC thiab DC voltage thiab AC thiab DC tam sim no, tsis kam, capacitance, transistor -value, diode ntawm voltage thiab circuit shorting, thiab lwm yam. Los ntawm ib tug rotary band hloov mus hloov lub functionality thiab ntau yam ntawm kev ntsuas, tag nrho ntawm 30 lub zog .
