Manual Metrel MI 3109 - Eurotest PV Lite (page 37 of 74) (English)

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MI 3109 EurotestPV Lite Measurements

 Enable and set the limit (optional).

 Connect PV continuity test lead to the instrument.

 Compensate test leads resistance (if necessary, see section 5.2.3).

 Disconnect from mains supply and discharge the object to be tested.

 Connect test leads to the tested object (see Figure 5.8).

 Press the TEST key to begin performing a continuous measurement.

 Press the TEST key to stop measurement.

 Store the result by pressing the MEM key (optional).

Figure 5.9: Example of continuous resistance measurement

Displayed result:

R............resistance

U:............ actual voltage on test inputs

5.2.3 Compensation of test leads resistance

This chapter describes how to compensate the test leads resistance in both continuity

functions, R LOWΩ and CONTINUITY. Compensation is required to eliminate the

influence of test leads resistance and the internal resistances of the instrument on the

measured resistance. The lead compensation is therefore a very important feature to

obtain correct result.

symbol is displayed if the compensation was carried out successfully.

Circuits for compensating the resistance of test leads

Figure 5.10: Shorted test leads

Compensation of test leads resistance procedure

 Select R LOWΩ or CONTINUITY function.

 Connect Continuity PV test lead to the instrument and short the test leads

together (see Figure 5.10).

 Press TEST to perform resistance measurement.

 Press the CAL key to compensate leads resistance.

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Others manual(s) of Metrel MI 3109 - Eurotest PV Lite

Metrel MI 3109 - Eurotest PV Lite Quick start guide - Dutch - 68 pages

Metrel MI 3109 - Eurotest PV Lite User Manual - Dutch - 68 pages

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Metrel MI 3109 - Eurotest PV Lite Manual

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