Velleman DVM1090, Руководство пользователя

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DVM1090 GB 6
4.2.9. Frequency
Range Resolution Accuracy
20KHz 10Hz ±1.5% of rdg + 5 digits
Sensitivity : 200mV rms and input no more than 10V rms
Overload Protection : 250V rms AC
4.2.10. Transistor hFE
Range Function
hFE Read the approximate hFE value (0-1000) of the
transistor under test (ALL TYPES) from the display
4.2.11. Diode
Range Resolution Function
1mV Read the diode’s approximate forward
voltage value from the display
Forward DC Current : 1mA
Reversed DC Voltage : ±2.8V
Overload Protection : 250V DC or rms AC
4.2.12. Continuity
Range Function
Built-in buzzer sounds if continuity exists (resistance < 50
Ω
)
Open Circuit Voltage : ±2.8V
Overload Protection : 250V DC or rms
4.2.13. TTL Logic
Range Function
The LCD displays ▼ when the logic level
≤
0.8V.
The LCD displays ▲ when the logic level
≥
2.0V