Mastech MS8268 - AC Voltage Measurement Specifications; Resistance Measurement Specifications; Audible Continuity Specifications; Diode Test Specifications

4.2.2
4.2.2
4.2.2
4.2.2AC
A C
AC
ACVoltage
V oltage
Voltage
Voltage
RangeResolutionAccuracy
400mV0.1mV±(3.0%ofrdg+3digits)
4V1mV
±（0.8%ofrdg+3digits） 40V10mV
400V100mV
750V1V±（1.0%ofrdg+3digits）
Inputimpedance:10MΩ
Max.inputvoltage:1000Vdcor750Vacrms.
FrequencyRange:40Hz-200Hzfor4Vrange,40Hz-1kHzfor
otherranges.
Response:Average,calibratedinrmsofsinewave
4.2.3
4.2.3
4.2.3
4.2.3Resistance
R esistance
Resistance
Resistance
RangeResolutionAccuracy
400.0Ω0.1Ω
±（ 1.2%%ofrdg+2digits）
4.000kΩ1Ω
40.00kΩ10Ω
400.0kΩ100Ω
4.000MΩ1kΩ
40.00MΩ10kΩ±（2.0%ofrdg+5digits）
OpenCircuitVoltage:approx.250mV.
Overloadprotection:250Vdcor250Vacrms.
4.2.
4.2.
4.2.
4.2.4
4
4
4Audible
A udible
Audible
Audiblecontinuity
c ontinuity
continuity
continuity
RangeContinuitybeeper
≤50Ω
Opencircuitvoltage:approx.0.5V.
Overloadprotection:250Vdcor250Vacrms.
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4.2.
4 .2.
4.2.
4.2.5
5
5
5Diode
D iode
Diode
Diode
RangeResolutionFunction
1mV
Displayreadapprox.forward
voltageofdiode
ForwardDCCurrent:approx.1mA
ReversedDCVoltage:approx.1.5V
Overloadprotection:250Vdcor150Vacrms.
4
4
4
4.2.
. 2.
.2.
.2.6
6
6
6Transistor
T ransistor
Transistor
Transistor
RangeDescription Test Condition
hFE
Displayreadapprox.HFE
value(0-1000)oftransistor
undertest(alltype).
BaseCurrent
approx.10μA,Vce
approx.2.8V.
Overloadprotection:ResettableFuse(F400mA/250V)
4.2.
4.2.
4.2.
4.2.7
7
7
7Capacitance
C apacitance
Capacitance
Capacitance
RangeResolutionAccuracy
4nF1pF±(5.0%ofrdg+5digits)
40nF10pF
±(3.0%ofrdg+3digits)
400nF100pF
4µF1nF
40µF10nF
200µF100nF
Overloadprotection:250Vdcor250Vacrms.
4
4
4
4.2.
. 2.
.2.
.2.8
8
8
8Frequency
F requency
Frequency
Frequency
RangeResolutionAccuracy
9.999Hz0.001Hz
±(2.0%ofrdg+5digits)
99.99Hz0.01Hz
999.9Hz0.1Hz
9.999kHz1Hz
99.99kHz10Hz
199.9kHz100Hz
>200kHz100HzUnspecified@>200kHz
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