2. Determine whether the transistor under testing is NPN or PNP type and
locate the emitter, base and collector leads. Insert the leads into proper
holes of the hFE socket on the front panel.
3. The meter will show the approximate hFE value at the condition of base
current 10
μ
A and Vce 3V.
NOTE:
Before attempting to insert transistors for testing, always be sure that test
leads have been disconnected from any measurement circuits.
Components should not be connected to the hFE socket when making
voltage measurements with test leads.
DIODE TEST
1. Connect the red test lead to “V
Ω
mA” jack and the black lead to “COM”
jack. (The polarity of red lead is positive “+”).
2. Set the rotary switch at
position.
3. Connect the red lead to the anode of the diode to be tested and the
black lead to the cathode of the diode.
4. The approx. forward voltage drop of the diode will be display in mV. If
the connection is reversed, only figure “1” will be shown.
BATTERY & FUSE REPLACEMENT
If the sign “BAT” appears on the LCD display, it indicates that the battery
should be replaced. Loosen screws on the back cover and open the case.
Replace the exhausted with a new one of the same type.
Fuse really need replacement and blow almost always as a result of
operator’s error. Open the case and replace the blown fuse with the
ratings specified: F250mA/250V.
WARNING
Before attempting to open the case, always be sure that test leads have
been disconnected from measurement circuits. Close case and tighten
screws completely before using the meter to avoid electrical shock
hazard.
ACCESSORIES
•
Operator’s instruction manual
•
Set of test leads
•
Battery: 1
×
9V
6F22 or NEDA 1604 type