Operation; Recording Of Min, Max And Avg - Chauvin Arnoux C.A 41 Notice De Fonctionnement

The C.A 41 has four buttons whiwh provide access to specific functions for recording, filtering or holding
the measurement value.
Each press on a button sets off a beep at 2 kHz for 65 ms. In all cases, the response time for one press
is less than 50 ms.

4.1. RECORDING OF MIN, MAX AND AVG

The MIN MAX button allows recording of the minimum, maximum and average values of the measurement.
A brief press (less tha 2 seconds) on this button places the instrument in record mode (the RECORD
symbol lights up).
The RECORD and
mode (the AUTO OFF function is not in operation).
MIN value
When MIN MAX is pressed the displayed value is memorised in the MIN register.
Each time that a measurement is less than that contained in the register, it is transferred into
the MIN register and a 1 kHz beep is emitted for 125 ms.
MAX value
A measurement value greater than that contained in the memory will update it.
At each modification of the MAX memory, a 2 kHz beep is emitted for 125 ms.
AVG value*
Initially, the memorised value is zero. The instrument inputs the digital value every second,
then it takes the sum of all the values input since the start of the record instruction and
divides the total by the number of seconds that have passed.
The result (the average value) is stored in memory.
Thus the contents of the AVG memory are reset every second.
Readout of the MAX, MIN and AVG memories
The display of the values contained in the MIN, MAX and AVG registers is produced by
successive presses on MIN MAX.
The circular display successively indicates the maximum value reached (MAX symbol), the
minimum value reached (MIN symbol), the average value (AVG symbol) then the current value
of the measurement.
Switch OFF the MIN, MAX and AVG functions
The MIN, MAX and AVG recording functions are switched OFF by pressing the MIN MAX button
for more than 2 seconds (1 kHz beep for 250 ms)
*AVG : AVERAGE

4. OPERATION

symbols on the display mean that the instrument is in permanent recording
30