Mastech MAS830B User Manual

Diode and circuit on-off measurement
Range
Description
When the on-resistance is smaller than (70 30)),
the built-in buzzer will beep.
Display the approximate diode position voltage.
Overload Protection: 250V DC or RMS.AC.
Temperature measurement
Range
Test Range
Measurement
Accuracy
℃
1℃
-20℃ to 40℃
-0℃ to 400℃
400℃ to 1000℃
10% Range, 2 digits
1.0% Range, 3 digits
2.0% Range
TRANSISTOR hFE TEST (0-1000)
Range
Test Range
Test Current
Test Voltage
NPN & PNP
0-1000
Ib=10A
Vce=3V
Instructions
Notices before operation:
1. Plug the instruction, check the 9V battery, if it is slow, the
symbol will display, requiring battery replacement;
Otherwise follow the steps below.
2. The besides the probe jack indicates that the input
voltage or current should not exceed the specified limits to
protect the internal circuit.
3. Before measurement, turn the function/range switch to the
desired range.
Direct voltage measurement
1.
2.
Insert the red probe to the “V..mA” jack and the black
lead to the “COM” jack.
Turn the function/range switch to the range of V- and
connect the probe to the power supply or load to be
measured. The polarity touched by the red probe will be
on the display.
7

Mastech MAS830B Specifications

General

Brand	Mastech
Model	MAS830B
Category	Multimeter
Language	English