Chauvin Arnoux C.A 1725 Notice D'utilisation page 49

The K symbol can be made to disappear only by reprogramming the original value of coefficient K (see
the table below).
The programming of K is limited to values between 99.999 and 0.010. No other values are accepted.
Measurement
K in tr/mn
K in m/min
K in RPM
K in ft/min
K in kHz, ms, %
Programming a coefficient K does not change the maximum measurement and display limits (0.1 to
10,000Hz and 0 to 99,999 points).
The table below indicates the frequency limits as a function of the programmed value of coefficient K
(it is assumed that the external input connector is used). Beyond these limits, the display indicates "OL"
for an overshoot and "-----" for an undershoot.
Measurement unit
Hz
tr/min or RPM
m/min
Measurement unit
ft/min
1ft = 0.3048cm
1m = 3.281ft
Counting
K in revolutions
K in m
K in REV
K in ft
K in pulse count
MAX input freq.,
giving a MAX
display of
MIN input freq.,
giving a MIN
display of
MAX input freq.,
giving a MAX
display of
MIN input freq.,
giving a MIN
display of
MAX input freq.,
giving a MAX
display of
MIN input freq.,
giving a MIN
display of
49 49
Original K
1
0.1
1
0.328
1
Programmed coefficient K
0.01 99.999
9999.9Hz 1000Hz
99999pts 99999pts
0.1Hz 0.1Hz
0.0010pts 9999pts
10.000Hz 16.666Hz
6000.0pts 99999pts
0.1Hz 0.1Hz
0.0600pts 59999pts
Programmed coefficient K
0.033 32.81
10000Hz 50.8Hz
19800pts 99999pts
0.1Hz 0.1Hz
0.1980pts 196.86pts