General Tools and Instruments DMM51FSG User Manual
Page 5
B-5
RESISTANCE
Range
Resolution
Accuracy
DMM51FSG
200
Ω
0.1
Ω
± (0.8% rdg + 3 digits)
2K
Ω
1
Ω
20K
Ω
10
Ω
200K
Ω
100
Ω
± (0.8% rdg + 1 digit)
2M
Ω
1K
Ω
20M
Ω
10K
Ω
±(1% rdg + 2 digits)
200M
Ω
100K
Ω
± [ 5% (rdg-10 + 10 digits) ]
VOLTAGE AT OPEN CIRCUIT:
≤700mV (200MΩ range, open circuit voltage
around 3V).
OVERLOAD PROTECTION: All ranges 250VDC or AC RMS.
CAUTION: At 200M
Ω 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
≤70Ω. Display near value
Unit “
Ω”
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
10
A,Vce abt 2.8V
hFE Range: 0-1000
DMM51FSG Manual FINAL-091908:Layout 1 9/19/08 4:03 PM Page 5