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reading is the approximation of the diode positive volt drop.
3. Connect the test leads to two points of the measured circuit, if
buzzer sounds, the resistance is lower than approx. (70±20)
Ω.
4.9 TEMPERATURE MEASUREMENT
Insert the cathode of thermocouple’s cold end to " mA" jack and
anode to " COM " terminal, put the working end on or in the
tested object, temperature value can be read on LCD in Celsius.
4.10 TRIODE hFE
1. Set the range knob to hFE.
2. Verify the type of the transistor is NPN or PNP, insert the
emitter, basic and collector to the proper jack on test acces-
sory.
4.11 AUTO POWER OFF AND LCD BACKLIGHT
When power on, the LCD screen showing “APO”, means the
meter is in automatic power off mode, if there is no any opera-
tion within fteen minutes, the meter will auto power off.
Press LCD backlight button or turn the rotary selector to resume
operation of the meter. At the same time, when power is on,
press LCD backlight button for 2 seconds, the letter of “APO”
will disappear, the auto power off function will be disable, and
press LCD backlight button 2 seconds again, the “APO” function
will be enable.
5. MAINTENANCE
DO NOT try to verify the circuit for It’s a precision meter.
1. Beware of waterproof, dustproof and shockproof.
2. Do not operate and store the meter in the circumstance of
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