Cloos Arc Flash 4 evo Instrukcja obsługi - Strona 12
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4.1.5 Setting the delay
The clearing delay can be adjusted manually by selecting the Delay MODE
and then by pushing the arrows on the "Ranges" button, up and down, to
select a delay between a fast clear (0.1 s) up to a slow clear (1.9 s).
4.1.6 Testing settings
Before use of the welding helmet the auto darkening filter (ADF) and hel-
met needs to be checked according to the following procedure:
• Check outer protection lens is clean and can be seen through.
• Ensure the the sensors are covered in any way and are clean.
• Once these checks have been carried out you can now test the ADF.
Select the darkest setting (shade 13) and set the sensitivity to the highest
setting. Now point the sensor towards a light source such as an overhead
light, lamp etc. The ADF should now switch to the dark state (please note if
the ADF is stored in a dark area away from light it may need to be left out
in strong light for 20 minutes to absorb power, if after 20 minutes if the
ADF does still not react then there is an issue with the sensor). Once the
filter is in the dark state you can check the shade variation is functioning
correctly, simply adjust the shade. By doing this, the shade should get ligh-
ter. If the shade does not appear to alter then you have an issue with the
shade variation.
To test the delay function set the delay to the maximum setting. Now
move the filter sensor away from the light source it should take 1 second to
return to the light state, now alter the delay setting to the minimum and
repeat the process, the time taken to return to the clear state should be 0.1
second. If the ADF does not react in this way then there is an issue with the
delay function.
Testing the sensitivity. Set the sensitivity to minimum setting and point
the ADF at the light source you used to test the other functions. If filter
switches to dark state, move away until the filter returns to clear state.
Slowly reduce the sensitivity until the filter switches to dark state (if it does
not, then move closer to the light until it reacts). If the ADF does not react,
then there is an issue with the light sensors.
If any of the functions fail during test or in use then please do not use the
ADF and contact your local distributor.
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