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Velleman DVM894 Manual

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DVM894
V. 01 – 21/01/2015 55 ©Velleman nv
3. Conecte los cables de prueba a dos terminales del circuito. Si la resistencia
del circuito es inferior a 50 Ω, el zumbador incorporado sonará.
7.8 Capacidad
PARA EVITAR DESCARGA ELÉCTRICA Y LESIONES, APAGUE LE CIRCUITO Y
DESCARGUE LOS CAPACITORES ANTES DE MEDIR LA CAPACITANCIA.
1. Conecte el cable de prueba negro en la entrada COM y el cable de prueba rojo
en la entrada hFE conector mA.
2. Coloque el interruptor giratorio en la posición y seleccione el rango
adecuado.
3. Conecte los cables de prueba a dos extremos del circuito / capacitor y lea el
valor en la pantalla LCD.
7.9 Medir la frecuencia
1. Conecte el cable de prueba negro en la entrada COM y el cable de prueba rojo
en la entrada VTempΩ Conector Hz.
2. Coloque el interruptor giratorio en la posición Hz.
3. Conecte los cables de prueba a dos extremos del circuito y lea el valor en la
pantalla LCD.
7.10 Temperature
PARA EVITAR CHOQUE ELÉCTRICO Y LESIONES, NO MEDIR LA SUPERFICIE DE
UN OBJETO CON UN POTENCIAL ELÉCTRICO SUPERIOR A 60 VDC / 24 VAC
1. Conecte la toma multifunción con el terminal IN en el conector Hz VTempΩ y
el terminal COM en el conector COM.
2. Inserte el termopar tipo K en la toma multifunción con la polaridad correcta.
3. Coloque el interruptor giratorio en la posición TEMP.
4. Utilice el termopar para medir la temperatura de la superficie del objeto de
prueba.
5. Lea el valor en la pantalla LCD.
7.11 Ganancia del Transistor
PARA EVITAR CHOQUE ELÉCTRICO Y LESIONES, NO PRUEBE CON TENSIONES
SUPERIORES A 250 V AC/DC.
1. Conecte la toma multifunción con el terminal IN en el conector mA hFE y el
terminal COM en el conector COM
2. Coloque el interruptor giratorio en la posición hFE y seleccione el rango
adecuado.
3. Determine si el transistor a probar es do tipo NPN o PNP, luego inserte los
tres pines del transistor en los orificios correspondientes de la toma
multifunción.
4. Lea la ganancia del transistor aproximada en la pantalla LCD.
… 55 …


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