Clarke CDM20 Instruções de Operação descarregar pdf (Página 13)

CDM-20 Page-12

3.3 MEASURING RESISTANCE

1. Connect the black test lead to the COM jack and the red test lead to the V/Ω jack. (The polarity of

red lead is “+” )

2. Set the rotary switch at desired Q position and connect test leads across the resistor under

measurement.

NOTE

1. If the resistance being measured exceeds the maximum value of the range selected or the input is

not connected, an overrange indication “1” will be displayed.

2. When checking in-circuit resistance, be sure the circuit under test has all power removed and that all

capacitors have been fully discharged .

3. For measuring resistances above 1M

Ω

the meter may take a few seconds to stabilise. This is normal

for high resistance measurements.

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Clarke CDM20 Instruções de Operação Página 13