User Manual
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6. MAINTENANCE
Except for the batteries, the instrument contains no parts that can be replaced by personnel who have not been
specially trained and accredited. Any unauthorized repair or replacement of a part by an “equivalent” may grave-
ly impair safety.
6.1. CLEANING
Disconnect everything connected to the instrument and switch it off.
Use a soft cloth, dampened with soapy water. Rinse with a damp cloth and dry rapidly with a dry cloth or forced air. Do not use
alcohol, solvents, or hydrocarbons.
6.2. REPLACEMENT OF BATTERIES
The symbol indicates the remaining battery life. When the symbol is empty, all of the batteries must be replaced.
Disconnect everything connected to the instrument and switch it off.
Refer to §1.4 for the replacement procedure.
Spent batteries must not be treated as ordinary household waste. Take them to the appropriate recycling collection
point.
6.3. CONNECTION TO A CALIBRATOR
During calibration measurements performed on calibrators connected to line power, the test bench must be free of ground loops.
This can be achieved in two ways:
the instrument is powered by batteries.
the instrument is connected to line power via the USB cord, in which case a USB isolator must be used.
6.4. UPDATING THE EMBEDDED SOFTWARE
With a view to providing, at all times, the best possible service in terms of performance and technical improvements, Chauvin Arnoux
offers you the possibility of updating the internal software of this instrument by downloading, free of charge, the new version avail-
able on our web site.
See you on our site:
www.chauvin-arnoux.com
Then go to “Support”, then “Download our software”, then “C.A 1821”, “C.A 1822” or “C.A 1823”.
Updating the embedded software may reset the conguration and cause the loss of the recorded data. As a precaution,
save the data in memory to a PC before updating the embedded software.