Warranty; Appendix - Chauvin Arnoux C.A 43 FILEDMETER Mode D'emploi

Unless otherwise stated, our instruments are guaranteed against any manufacturing defect,
or defective parts. They do not have "Safety" specification. Our guarantee, which may not
under any circumstances exceed the amount of the invoiced price, will not extend beyond
repair of our instruments, returned carriage paid to our workshops. It applies for normal use
of our instruments, and does not apply to damage or destruction caused, in particular due to
failure to connect up correctly, mechanical accident, defective use, overload or excess
voltage, or calibration done by third parties.
Our responsability being strictly limited to pure and simple replacement of faulty parts in our
instruments, the purchaser expressly resigns the right to claiming responsability from us for
damages or losses caused directly or indirectly.
Our guarantee applies, unless expressly stipulated, for twelve (12) months after the
date at which the equipment is supplied. The repair, the modification or replacement of a
part during the guarantee period will not extend the period of this guarantee.
CODING THE RESPONSE TO A RAPID READOUT OF THE MEASUREMENT
The two bytes transmitted in response to a rapid instruction are coded according to a special
law.
A byte comprises two digits coded in Hexadecimal called A
for the second byte transmitted.
To decode this information which arrives in the form A
information in order, to get a new digit in the form B
These four digits contain the measurement information in the form of a digital value with three
digits, followed by an exponential to the power 2 which multiplies the preceding digital value:
x x x X 2
Example: the two bytes transmitted after the normal measurement readout are: AF 6D.
After putting bytes in order, the final value becomes DAF x 2
After decoding this new value in decimal the measurement becomes :
DAF = (13 x 256) + (10 x 16) + 15 = 3503
3503 x 2 6

WARRANTY

x i.e. B A A
2 1 2
= 3503 x 64 = 224192

APPENDIX

A
2
X 2 B1
83
, A for the first byte, and B
1 2
A B B , you must start by putting the
1 2 1 2
A B .
1 2 1
6
, B
1 2