General-tools-and-instruments DMM51FSG Manual de usuario Pagina 5

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B-5 RESISTANCE
Range Resolution Accuracy
DMM51FSG
200 0.1 ± (0.8% rdg + 3 digits)
2K 1
20K 10
200K 100
± (0.8% rdg + 1 digit)
2M 1K
20M 10K ±(1% rdg + 2 digits)
200M 100K ± [ 5% (rdg-10 + 10 digits) ]
VOLTAGE AT OPEN CIRCUIT: 700mV (200M range, open circuit voltage
around 3V).
OVERLOAD PROTECTION: All ranges 250VDC or AC RMS.
CAUTION: At 200M range, as test lead is short circuit the LCD display 10 digits
is normal, deduct the 10 digits from the measured reading during
measuring.
B-6 DIODE TEST AND CONTINUITY BEEPER
Range Comment Measuring Condition
Display diode forward- Forward DC current abt 1mA
voltage near value, Backward DC voltage abt 2.8V
Unit “mV”
Beeper sounds if Voltage at open circuit
Continuity Resistance abt 2.8V
70. Display near value
Unit
OVERLOAD PROTECTION: 250V DC or AC RMS.
B-7 TRANSISTOR hFE TEST
Range Comment Measuring Condition
hFE Can measure NPN Basic polarity current abt
or PNP transistor 10A,Vce abt 2.8V
hFE Range: 0-1000
DMM51FSG Manual FINAL-091908:Layout 1 9/19/08 4:03 PM Page 5
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