26
DIODE TEST
1. Connect the test leads to the device.
2. Turn the dial button to the mark.
3. Using the
FUNCTION
button select the diode symbol on the display.
4. Now connect the test leads to the measured part so that the red test lead connects to the
anode, the black to the cathode.
5. The device will show the approximate forward voltage value. (In case of inverted connection,
the "OL" sign will show on the display.)
Note:
Circuit power needs to be disconnected from the measured device and all capacitors
have to be discharged before starting the measurement.
The forward voltage loss of a typical diode is between 0.3-0.8 V. The measured value can
change depending on the value of actual resistance present between the probe heads.
Maximum voltage: ~ 1.5 V
Forward current: approx. 1mA
Overload protection: 1000 V DC or 750 V rms AC
CAPACITANCE MEASUREMENT
1. Connect the test leads to the device.
2. Turn the dial button to the mark.
3. Using the
FUNCTION
button select the
nF
measurement unit on the right side of the display.
4. Now connect the test leads to the part to be measured.
Note:
The capacitor must be discharged before starting the measurement! Longer time may be required
(approx. 30 seconds) to display a stable value in case of measuring higher values (e.g.100µF) . In case
of measuring smaller values (e.g. below 100nF) it is practical to reset the display back to zero using
the
REL
button before starting measurements. Manual resetting of the display to zero may be necessary,
because the sensitive inputs of the device function as an open circuit. The internal insulation materials used in capacitors may cause
deviance in measurements. Within the 40nF measurement range this may typically mean a few nF difference in addition to the
threshold values shown below.
Range
Resolution
Accuracy (18-28
0
C)
40nF
10pF
± 3.0 % + 3 digit
400nF
100pF
± 3.0 % + 3 digit
4µF
1nF
± 3.0 % + 3 digit
40µF
10nF
± 3.0 % + 3 digit
100µF
100nF
±3.0 % + 3 digit
Overload protection: 1000V DC or 750V rms AC
FREQUENCY MEASUREMENT
1. Connect the test leads to the device.
2. Turn the dial button to the
Hz%
mark.
3. Select the
Hz
measurement unit using the
Hz%
button.
4. Now connect the test leads (in series connection) with the
circuit to be measured.
5. Power the measured circuit and read the displayed figure.
Note:
Alternatively, frequency measurement can be performed by entering
AC V
or
AC A
mode using the
Hz%
button.
MEASUREMENT OF THE POWER FACTOR
1. Connect the test leads to the device.
2. Turn the dial button to the
Hz%
mark.
3. Select the % measurement unit using the
Hz%
button.
4. Now connect the test leads (in series connection) with the circuit to be measured.
5. Power the measured circuit and read the displayed figure.
Ω
Ω
