HTC DM 91 Manual do operador - Página 4
Procurar online ou descarregar pdf Manual do operador para Instrumentos de medição HTC DM 91. HTC DM 91 7 páginas. Digital multimeter
Imprimir página-- Response: average, calibrated in rms of sine wave
NOTES:
At the little voltage range, the meter will show unsteady reading when the test leads haven't reach the circuit, it's normal because the meter is
very sensitivity. When the test leads touch the circuit, you can get the true reading.
3.2.3 DC Current
Range
Resolution
20μA
2mA
200mA
100μA
10A
-- Overload protection:
20uA to 200mA ranges: F1-200mA/250V fuse
10A range: F2- 10A/250V fuse
-- Max. Input Current:
mA Jack – 200mA
10A Jack – 10A
-- voltage Drop: 200mV
3.2.4 AC Current
Range
Resolution
20mA
200mA
100μA
10A
-- Overload protection:
20mA to 200mA ranges: F1-200mA/250V fuse
10A range: F2- 10A/250V fuse
-- Max. Input Current: mA Jack – 200mA
10A Jack – 10A
-- voltage Drop: 200mV (full range)
-- Frequency Range: 40 to 500Hz
-- Test on 60Hz/50Hz
-- Response: average, calibrated in rms of sine wave.
3.2.5 Resistance
Range
Resolution
200Ω
2KΩ
20KΩ
200KΩ
100Ω
20MΩ
10KΩ
200MΩ
100KΩ
-- Open Circuit Voltage: 200MΩ range: 3V
other ranges: less than 700mV
-- over-load protection: 250V DC or rms
NOTES:
On 200MΩ range, if short input, display will read 1 MΩ. This 1 MΩ should be sustracted from measurements results.
3.2.6 Capacitance
range
Resolution
2nF
200nF
2μF
200μF
100nF
3.2.7 Transistor hFE Test (0-1000)
Range
NPN & PNP
3.2.8 Diode
Range
-- over-load Protection: 250V DC rms AC
-- forward DC current: approximate 1mA
-- Reversed DC voltage: approximate 2.8V
3.2.9 Continuity
Range
-- over-load protection: 250V DC or rms AC
10nA
±(1.2% of rdg + 3 digits)
1μA
±(1.0% of rdg + 3 digits)
±(1.5% of rdg + 5 digits)
10mA
±(2.0% of rdg + 10digits)
10μA
±(1.2% of rdg + 5 digits)
±(2.0% of rdg + 5 digits)
10mA
±(3.0% of rdg + 10digits)
0.1Ω
±(1.0% of rdg + 10 digits)
1Ω
10Ω
±(1.0% of rdg + 1 digits)
±(1.0% of rdg + 5 digits)
±[5.0% of (rdg-10 dgits) + 20 digits]]
1pF
0.1nF
±(4.0% of rdg + 3 digits)
1nF
±(5.0% of rdg + 3 digits)
Test Range
0-1000
Resolution
Display: read approximate forward
1mV
Function
Built-in buzzer will sound if resistance is less than 70Ω
Accuracy
Accuracy
Accuracy
accuracy
Test Current / voltage
I
=10uA / Vce=3V
b
Function
voltage of diode
4