ESAB Air 160 Manual Del Usuario página 6

IRL
GB
7. AIR FLOW TEST
Air 160:
The turbo unit is designed to exceed the requirements of prEN146rev:1995 in that it will provide a flow rate of at
least 120 litres/min for at least 4 hours under all conditions when used with the Albatross welding shield or 140
l/min when used with the Eye-Tech auto-change welding shield, assuming a fully charged battery at start.
Typical Airflow from the unit is 160 l/min but will vary with battery charge and filter condition.
Airflow should always be checked before use or when insufficient airflow is suspected.
The Turbo units airflow is checked with a filter (and pre-filter, if used) fitted, a charged battery pack and with the
unit switched on.
Principle of operation
The Airflow indicator is designed to be situated in the centre of the filtered air stream and as the air stream
passes over the indicator, it causes it to rise relative to the airflow.
Indicated Airflow then can be read by means of a graduated scale situated on the body of the indicator.
Warnings and precautions
To ensure that your air flow indicator is maintained to give its optimum accuracy, the following precautions must
be adopted: - When not in use, the indicator must be stored in conditions
• To prevent physical damage.
• +5ºC to 35ºC @R.H.<90%.
• Away from direct sunlight.
• The indicator must be kept clean and free from any contamination.
• No adjustments, alterations or additional markings must be made.
Method of use
Prior to use
Visually inspect the Airflow indicator for any damage, contamination or distortion.
Ensure that the battery pack fitted is in good condition and fully charged.
Ensure a filter is fitted. (And pre-filter if used)
Position Vertically the Turbo unit for testing. (See diagram I).
Unlock the outlet ring (See diagram I) and remove Air hose (if attached) ensure that the outlet ring is in the
UNLOCKED position at all times during the air flow test.
Switch unit on and allow to run for a minimum of 10secs.
Locate Airflow indicator in the outlet ring with the letters of the graduated scale in the vertical and facing the
front of the unit.
Observe the airflow indicated from the graduated scale (See diagram II, III or IV). Ensure that when reading the
scale your eye is level with the top of the outlet ring.
NB It is possible that the airflow of the power unit when fitted with a fully charged battery pack and a new or
serviceable filter/pre-filter will be such that when the airflow indicator is located in the outlet ring (See diagram I)
it will be expelled.
This is not a fault condition but an indication of airflow above the designed limits of the indicator; it is an indica-
tion of sufficient airflow.
If you have both replaced the filter and fully charged the battery and line B is still not visible the unit and battery
should be returned to the supplier.
5