Measuring Capacitance; Measuring Frequency / Duty Cycle - Egatronic 51253 Manual De Instrucciones

F. Measuring Capacitance
To ensure accuracy, the Meter inside is discharged against the tested capacitor.
Warning!
To avoid damage to the Meter or to the equipment under test, disconnect circuit
Use the DC Voltage function to confirm that the capacitor is discharged.
To measure capacitance, set up the Meter as shown in Figure 3-6 and proceed as follows:
1. Insert the red test lead into the
2. Set the rotary switch to
is a internal distributed capacitor value. For testing less than 10nF capacitor, the tested value must
subtract the internal distributed capacitor value to maintain the accuracy.
To improve the measurement accuracy of small value capacitors (less than 10nF), press REL
with the test leads open to subtract the residual capacitance of the Meter and leads.
3. It is recommended to use test clip to carry out measurement to reduce the effect of internal
distributed capacitor.
Note
- The LCD displays OL indicating the tested capacitor is shorted or it exceeds the maximum
range.
- Capacitors larger than 400¦ÌF take longer time. The analogue bar graph shows the time left
before finishing the measurement.
- When capacitance measurement has been completed, disconnect the connection between the
testing leads and the circuit under test and remove the test leads away from the input terminals of
the Meter.
G. Measuring Frequency / Duty Cycle
To avoid harms to you, please do not attempt to input voltage higher than 30V rms.
Warning!
To measure frequency and duty cycle, connect the Meter as Figure 3-7 and do the following:
1. Insert the red test lead into the Hz terminal and the black test lead into the COM terminal.
"DIS.C" will be shown on the display when it is under discharging, this
process will be quite slow.
power and discharge all high-voltage capacitors before measuring
terminal and the black test lead into the COM terminal.
measurement mode, the Meter may display a fixed reading which
Figure 3-6. Capacitance Measurement
capacitance.
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