Transistor; Capacitance; Frequency - Mastech my68 Instruction Manual

4.2.3 4.2.3 Resistance 4.2.3 4.2.3 Resistance Resistance Resistance
Range Resolution
400.0Ω 0.1Ω
4.000kΩ 1Ω
40.00kΩ 10Ω
400.0kΩ 100Ω
4.000MΩ 1kΩ
40.00MΩ 10kΩ
Overload protection: 250V dc or 150Vac rms.
Open Circuit Voltage: approx. 250mV.
4.2. 4.2. 4.2. 4.2.4 4 4 4 Diode Diode Diode Diode
Range Resolution
1mV
Forward DC Current: approx. 1mA
Reversed DC Voltage: approx. 1.5V
Overload protection: 250Vdc or 150Vac rms.
4.2. 4.2.5 5 5 5 Audible 4.2. 4.2. Audible Audible continuity Audible continuity continuity continuity
Range Continuity beeper
≤50Ω
Open circuit voltage: approx.0.5V.
Overload protection: 250Vdc or 250Vac rms.
4 4 4 4 .2. .2.

.2.6 6 6 6 Transistor

Transistor
.2. Transistor Transistor
Range Description
Display read approx. HFE
hFE value (0-1000) of transistor
under test (all type).
23
Accuracy
±（ 1.2%% of rdg +2 digits）
±（2.0% of rdg +5 digits）
Function
Display read approx.
forward voltage of diode
Test Condition
Base Current
approx. 10μA,
Vce approx. 2.8V.

4.2.7 7 7 7 Capacitance

4.2. 4.2. 4.2. Capacitance Capacitance Capacitance
Range Resolution
4nF 1pF
40nF 10pF
400nF 100pF
4µF 1nF
40µF 10nF
200µF 100nF
Overload protection: 250Vdc or 250Vac rms.
4 4 4 4 .2. .2. .2.

.2.8 8 8 8 Frequency

Frequency Frequency Frequency
Range Resolution
9.999Hz 0.001 Hz
99.99Hz 0.01 Hz
999.9Hz 0.1 Hz
9.999kHz 1Hz
99.99kHz 10Hz
199.9kHz 100Hz
>200kHz 100Hz
Overload protection: 250V dc or 250V ac rms.
Input Voltage range: 0.6V-3V ac rms (Input voltage must be
enlarged
under measurement)
Frequency Response: 10Hz-200kHz, sine wave.
0.5Hz-200kHz, square wave.
4 4 4 4 .2. .2. .2. .2.9 9 9 9 Current Current Current Current (with (with (with (with clamp, clamp, clamp, clamp, optional) optional) optional) optional)
Range Resolution
DC40A 0.1A/1mV
DC400A 1A/1mV
AC40A 0.1A/1mV
AC400A 1A/1mV
Input impedance: 1MΩ
Max. input voltage: 250Vdc or 250Vac rms.
24
Accuracy
±(5.0% of rdg+5 digits)
±(3.0% of rdg+3 digits)
Accuracy
±(2.0% of rdg+5 digits)
Unspecified @ >200kHz
with increasing frequency
Accuracy
±(0.8% of rdg+3 digits)
±(0.8% of rdg+3 digits)
±(1.0% of rdg+3 digits)
±(1.0% of rdg+3 digits)