Velleman DVM990BL User Manual

Page 8

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DVM990BL VELLEMAN

7

NOTE:

With the 200 Mohm range, if the input is short circuited, the display will
read 1Mohm. This 1Mohm should be subtracted from the measured
results.


3.2.6. Capacitance

Range

Resolution

Accuracy (% reading + digits)

2nF 1pF

± (4.0% of rdg + 3 digits)

20nF

10pF

± (4.0% of rdg + 3 digits)

200nF

0.1nF

± (4.0% of rdg + 3 digits)

2µF

1nF

± (4.0% of rdg + 3 digits)

20µF

10nF

± (4.0% of rdg + 3 digits)

Overload Protection: 250V DC or rms AC


3.2.7. Diode

Range Resolution

Function

1mV

Display: reads approximate

forward voltage of diode

Overload Protection: 250V DC or rms AC

Forward DC current: approximate 1mA

Reverse DC voltage: approximate 2.8V


3.2.6. Continuity

Range Function

Built-in buzzer will sound, if resistance is less

than 70 ohms

Overload Protection: 250V DC or rms AC

Open circuit voltage: approximate 2.8V


3.2.9. Frequency

Range

Resolution

Accuracy (% reading + digits)

20kHz

10Hz

± (1.5% of rdg + 10 digits)

Overload Protection: 250V DC or rms AC

Sensitivity: 200mV rms and input no more 10V rms

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