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TRANSISTOR TEST
1.
Disconnect the test leads from any measurement circuits.
2.
Set the rotary switch at the "hFE" position.
3.
Determine whether the transistor under testing is NPN or PNP and locate the emitter, base and
collector leads. Insert the leads of the transistor into the proper holes of the hFE socket on the front
panel.
4.
Read the approximate hFE value at the test condition of base current 10uA and Vce 3V.
CONTINUITY CHECK
A continuity test is available to check the open/short of a circuit. Continuity is a complete path
for current flow. The beeper sounds if a circuit is complete.
1.
To avoid electrical shock and/or damage to the instrument, disconnect circuit power and discharge all
high-voltage capacitors before testing for continuity.
2.
Set the rotary switch at the "
3.
Connect the red test lead to the "VΩmA"- terminal and the black test lead to the "COM"- terminal.
4.
Connect the test lead probes tips to two points of the circuit. If continuity exists (less than 1.5K Ω), the
built-in buzzer will sound.
BATTERY REPLACEMENT
If
appears on display, it indicates that the battery should be replaced. To avoid false
readings, which could lead to possible electric shock or personal injury, replace the battery as
soon as the battery indicator appears.
To replace the battery, turn the Digital Multimeter off and remove the 2 screws in the bottom of
the case.
Open the case and replace the battery with a new one. Be careful to observe the battery polarity.
" position.
WARNING:
Before attempting to open the case, always be sure that test leads
have been disconnected from measurement circuits.
WARNING:
Close the case and tighten the screws completely before using the
Digital Multimeter to avoid electrical shock hazards.
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