Chauvin Arnoux C.A 41 Notice De Fonctionnement page 44

Remarks:
A) If the field is fluctuating (i.e. the display varies without changes in the position of the probe) the use
of the SMOOTH and PEAK functions will be particularly useful:
- SMOOTH to read an average value which is more representative of the global field.
- PEAK to identify the peaks, some of which may exceed the maximum level that is wanted.
(Example: the peaks due to the closeness of a neon light are often greater than 3 V/m and cannot
be classed as level II).
For PEAK values which occur at more than 100 ms use in addition the MIN MAX function
(cf. chapter «OPERATION»).
Measurement mode
Normal measurement
Recording
(of min, max and avg.)
Smooth measurement
Recording of smooth values
Peak measurement
Recording of peak values
(1) As applicable, the MIN, MAX or AVG symbols are added to specify the type of measurement in the
particular mode.
(2) In all cases, the sampling time is 250 µs.
B) In operation, when the battery reaches a level of discharge that only just ensures correct measurement,
the battery symbol (23) appears on the display.
When the battery voltage no longer ensures the accuracy of the measurements: "bAt" appears on the
digital display and the instrument switches OFF automatically after 5 seconds.
Symbol (1)
RECORD
SMOOTH
RECORD SMOOTH
PEAK
RECORD PEAK
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Measurement time (2)
400 ms
400 ms
4 s
4 s
100 ms
1 ms