Electrical Technical Index - Mastech MS8232B User Manual

• Automatic power off.
• Working temperature and humidity: 0~40°C
(32~104°F);relative humidity <80%RH
• Storage temperature and humidity: -10~50°C
(14~122°F);relative humidity <70%RH
• Altitude < 2000m
• Power Supply: AAA 2*1.5V Battery
• Safety Class: EN61010-1, CAT III 600V
• Dimension (LxWxH): 110X58X33mm,Weight:
about 150g

4-2. Electrical Technical Index

(Ambient Temperature: 23±5°C Relative Humidity: <75%)
4.2.1 DC Voltage
Measuring Range
Resolution
400mV 0.1mV
4V 1mV
10mV
40V
400V 100mV
1v
600V
Input Impedance: 10MΩ
Max. Input Voltage: 600V DC
4.2.2 AC Voltage
Measuring Range
Resolution
4V 1mV
10mV
40V
400V
100mV
600V 1v
Input Impedance: 10MΩ
Max. Input Voltage: 600V AC
Frequency Range: 40~400Hz
Accuracy
±(0.5% rdg + 3dgt)
±(0.8% rdg + 5dgt)
Accuracy
±(0.8% rdg + 3dgt)
±(1.0% rdg + 5dgt)
05
Response: average value response (r.m.s. of sine wave)
4.2.3 Resistance
Measuring Range
Resolution
400Ω 0.1Ω
4KΩ 1Ω
40KΩ 10Ω
400KΩ
100Ω
4MΩ 1KΩ
40MΩ 10KΩ
Open Circuit Voltage: about 0.25V.
Overload Protection: 250V DC or AC (r.m.s.)
4.2.4 Diode, Continuity
Measuring Range Function
Display forward voltage drop
of diode
The buzzer makes a sound when
the resistance is less than 50±20 . Ω
Open Circuit Voltage: diode is about 1.5V, buzzer is
about 0.5V.
Overload Protection: 250V DC or AC (r.m.s.)
4.2.5 DC Current
Measuring Range
Resolution
400uA 0.1uA
4mA 1uA
40mA 10uA
400mA 100uA
Max. Current: 400mA
Overload Protection: mA measuring range:
F500mA/250V fuse
06
Accuracy
±(1.0% rdg + 3dgt)
±(1.2% rdg + 15dgt)
Accuracy
±(1.8% rdg + 5dgt)