Smoothing Of The Measurement; Manual Choice Of Range - Chauvin Arnoux C.A 1725 Notice D'utilisation

Application :
When the tachometer is used in a place where it is difficult or impossible to read the display unit, the
HOLD function can be used in conjunction with MIN/MAX recording to store the minimum and maximum
values reached.

4.4 SMOOTHING OF THE MEASUREMENT

Pressing the key starts the smoothing of the measurement (SMOOTH displayed). The digital
value indicated is then the sliding average of the last 10 measurements (approximately 5 seconds).
The bargraph always indicates the instantaneous measurement.
In MIN/MAX recording, if the SMOOTH symbol is displayed, the values recorded are the smoothed
values.
Activating or deactivating the SMOOTH mode during MIN/MAX recording cancels the MIN and MAX
values already stored.
Remark: The SMOOTH function has no effect on the counting function.

4.5 MANUAL CHOICE OF RANGE

When the device is switched on, or during a change of function, the device automatically selects the
most appropriate measurement range. Each function has 4 or 5 ranges, except for the duty cycle
function (2 ranges).
In automatic operation, the digital display unit has a display capacity of 20,000 points and the possible
full-scale values of the bargraph are 2, 20, 200, 2000, 20,000, and 200,000.
In the automatic mode, the digital display unit switches to a higher range when
20,000 points is reached.
A first brief press (<2 s) on the
appears on the display unit. The digital indicator then has a display capacity of 100,000 points.
Each new press on the
higher range. From the highest range (20,000) the
To exit from the manual range change mode, press the
Remark:
If the measurement value exceeds the display capacity, the display unit indicates OL and the range
overshoot arrow appears to the right of the bargraph.
ATTENTION :
The functions described in the paragraphs that follow are available only on the C.A 1727.
key freezes the current measurement range. RANGE
key switches both displays (bargraph and digital) to the next
key switches the device to the 2 range.
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key for more than 2 seconds.