3.2.13 Diode Test
Range
Resolution
*
1mV
forward voltage of diode
-Forward DC current -1 mA
-Reversed DC voltage -1.5V
-Overload Protection: 250V DC or rms AC
3.2.14 Continuity Test
Range
Function
Built in buzzer will sound if resistance is
01))
lower than 400.
-Open circuit voltage
- 0.5V
-Overload Protection: 250V DC or rms AC
4. Operating lnstruction
4.1 Holding Readings
1) Press the "HOLD/8.L" button to hold the readings
while taking measurement, and the value on the
display will be held.
2) Press the "HOLD/8.L" button again to release the
READING HOLD function.
4.2 SWitching Functions
1) Press the "SELECT" button to switch between AC
and DC measurement at the current and voltage
ranges.
2) Press the "SELECT" button to switch among
resistance, diode and continuity ranges.
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Function
displaying approximat e
4.3 Switching Ranges
1) When the meter is turned on, it is at the auto range
mode for measuring current, voltage and resistance.
2) Press the "RANGE" button for manual range mode.
The range will go up one level at each press and return
to the lowest level when the highest level is reached.
3) Press the "RANGE" button for two or more seconds
to return to the auto range.
4.4 Switching Between Frequency/Duty
1) Press the "Hz/DUTY" button at the frequency range
to switch between frequency and duty measurement.
2) When the meter is at the voltage and current ranges,
press the "Hz/DUTY" button to measure the frequency
of the voltage or current signa l. Another press on the
"Hz/DUTY" button will change into the Duty range for
measuring the duty cycle of the voltage or current
signal.
3) Press the "Hz/DUTY" again to resume the meter to
voltage and current measurement at the manual
range mode.
4.5 Switching To Relative Measurement
1) Press the "REL" button to enter the relative
measurement mode when taking measurements.
The initial reading will resume zero.
2) At the relative measurement mode, the existing
reading will be stored in the memory as reference
value for later measurements. The displayed reading
is the difference between the input value and
reference value. i.e. REL (present reading) = input
value - reference value
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