Sonel CMP-3000, User Manual

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CMP-3000 – USER MANUAL
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6.2.2 INRUSH function
The INRUSH function captures the starting current precisely in
the beginning of 106-millisecond period when the device is just
started, To perform the measurement:

activate the AC measurement,

briefly press INRUSH/PEAK button,

fasten the clamp on the cord supplying power to the tested object,

turn ON the tested object,

read the results.
6.3 REL/Hz button
6.3.1 REL function
This mode enables a measurement relative to a reference value.

To enable the mode, press REL/Hz . Then, the displayed readout
value is taken as the reference value, and the readout will be re-
set.

From this moment, the readings will be presented as the ratio of
the measured value to the reference value.

To enable the mode, press REL/Hz .
The displayed main result is the difference between the reference
value (read-out at the moment of activating REL mode) and the cur-
rent read-out. Example: if
the reference value is 20 A , and the cur-
rent reading is 12.5 A , then the main result on the display will be
-7.5 A. If the new reading is identical to the reference value, then
the result will be zero.

When the function is activated, the automatic adjustment
of the measuring range is not available.

If the reading is outside the measurement range, symbol
OL is displayed In this situation, turn off the function and
manually switch to a higher range.

This function is not available for diode test.