Presentation; Precautions For Use - Chauvin Arnoux CA850 Notice D'utilisation

The CA 850 pressure gauge is ideal for measuring pressure levels in air-conditioning
installations, medical equipment and pneumatic control systems.
It measures relative pressures – pressure measured in psi in relation to atmospheric pressure
– and differential pressures – difference between two pressures.
11 measurement units are available for selection : bar, mmHg, ozin², kg/cm², inH ² O, kPa,
ftH ² O, inHg, cmH ² O, mbar.

2. PRECAUTIONS FOR USE

the pressure gauge should only be used by people qualified to work on pressurized
circuits. The manufacturer and its distributors disclaim any responsibility for damage
resulting from improper unqualified use of the instrument. Refer to the general
terms of sale.
The battery compartment must be closed before using the pressure gauge.
Ensure that no dust or foreign matter penetrates inside the pressure gauge.
To avoid damage due to overpressure, comply with the measuring range of the
pressure gauge.
To prevent corrosion of the pressure sensor, the pressure gauge must not be used
with corrosive gases.
To prevent a sudden pressure drop in a pressurized circuit, close valves to isolate
the portion of the circuit where the pressure gauge is to be mounted or removed
and slowly release the pressure before attempting to open this portion of the circuit.

1. PRESENTATION

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