IR Compensation

Polarisation tests (cyclic sweep custom sweep LPR sweep & LPR step) may be compensated by a measured or a manually set IR compensation value. IR compensation is typically used with high impedance test subjects such as concrete samples.

Before IR compensated techniques can be used a compensation value has to be specified this is done by adding the technique IR compensate – set value before any IR compensation techniques:

After IR compensation set value has been added to the sequence list subsequent IR compensated tests will use the last set IR compensation value for example:

 The Cyclic sweep and LPR step techniques will be compensated by the IR compensate set value in position 1 whilst LPR sweep will be compensated by the value set in position 4.

 IR Compensated Techniques

The various IR compensated techniques are identical in all but two respects to their standard counter parts:

1. No over sample option is available for IR compensated techniques

There is no gradual delay sweep option at the beginning of the test.

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