Prokit's Industries MT-3109 User Manual
Page 10
MT
/DC Digital Clamp Multimeter
-3109 AC
Warning
To avoid damages to the Meter or to the devices under test,
disconnect circuit power and discharge all the high-voltage
capacitors before measuring resistance.
The resistance ranges are:
400Ω, 4kΩ, 40kΩ,400kΩ,4 MΩ and 40MΩ.
To measure resistance, connect the Meter as follows:
1. Insert the red test lead into the Hz Duty%
terminal
and the black test lead into the COM terminal.
2. Set the rotary switch to Ω. Resistance measurement is
default to auto range mode, press RELA to switch to manual
ranging measurement mode.
3. Connect the test leads across with the object being
measured. The measured value shows on the display.
Note
To obtain a more precise reading, you could remove the
objects being tested from the circuit when measuring,
When resistance measurement has been completed,
disconnect the connection between the testing leads and the
circuit under test and remove testing leads from the input
terminals.
C. Testing Diodes (see figure 5)
Warning
To avoid damages to the Meter or
to the devices under test,
disconnect circuit power and
discharge all the high-voltage
capacitors before testing diodes.
Use the diode test to check diodes,
transistors, and other semiconductor
devices. The diode test sends a
current through the semiconductor junction, then measure the
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