Velleman ESR70 User Manual download pdf (Page 6)

Atlas ESR User Guide February 2008 – Rev 4

Page 6

Analysing Capacitors

The Peak Atlas ESR is designed to analyse capacitor ESR in or out of circuit.

The two test probes can be connected to the component any way around.

Remember though that in-circuit testing can result in less accurate readings.

Important: To minimise risk of damage to the unit, make sure that the

Atlas ESR has completed any previous analysis before attaching the test

probes to the capacitor. This ensures that the built-in protection circuit is

ready for any charge that may be present on the capacitor.

The Atlas ESR will start component

analysis when the on-test button is

pressed.

The analysis typically takes under 10 seconds to complete, depending on the

characteristics of the capacitor.

If the capacitor is charged (<50V), the

Atlas ESR will attempt to discharge the

capacitor while showing the progress

of the procedure:

If the Atlas ESR cannot recognise the

component connected to the test

probes, or the capacitance is out of

range, one the following messages may

be displayed:

Measuring

Capacitance...

Open circuit or

low capacitance.

Discharging...

Capacitor V= 23V

Capacitor value

too high

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Velleman ESR70 User Manual Page 6