Getting Started - CLAS AC 7495 Mode D'emploi

AC 7495
UNIVERSAL ELECTRONIC LEAK DETECTOR R134/1234YF/HYDROGEN

GETTING STARTED

Operation guide :
The AC 7495 is not equipped with anti-explosive designs and measures. Do not use this unit in the
environment with the burnable gases.
There are some environmental conditions that might cause error reading:
• Pollutant places.
• Large temperature variation.
• Places with high wind velocity.
• Organic solvent, adhesive vapor, fuel gas and vesicant will cause abnormal response from the sensor. Try
to avoid the environment involved with this substance.
• Places fill with too much to Freon Gas
Insertion batteries :
• Loose the screw and remove the battery compartment door located on the bottom of the instrument as
show below (Fig.1).
• lnstall 4 "AA" size alkaline batteries.
• Reinstall the battery cover by aligning it with the handle.
• When the batteries are nearing the end of their useful life, the Red LED Low Battery indicator illuminates.
The batteries should be replaced as quickly as possible.
Automatic Ambient Reset Feature :
The AC 7495 features an Automatic Ambient Reset function that sets the unit to ignore ambient concentrations
of refrigerant.
• Automatic Ambient Setup
Upon initial power on, the unit automatically sets itself to ignore the level of refrigerant present at the tip.
Only a level, or concentration, greater than this will cause an alarm.
Be aware that this feature will cause the unit to ignore any refrigerant present at turn on. ln other words, with
the unit off if you place the tip up to a known leak and switch the unit on, no leak will be indicated!
• Ambient Reset Feature
Resetting the unit during operation performs a similar function, it programs the circuit to ignore the level of
refrigerant present at the tip. This allows the user to 'home-in' on the source of the leak (higher concentration).
Similarly, the unit can be moved to fresh air and reset for maximum sensitivity.