MSA DSL Serie Manual De Instrucciones página 20

Use
 Activate the flushing function again to depressurise the compressed air line breathing apparatus. The ASV
switches over to the self-contained breathing apparatus. The warning signal is activated at the ASV. Carefully
activate the flushing function of the lung governed demand valve again, closing the outlet opening as much as
possible.
 Watch the high pressure gauge on the self-contained breathing apparatus.
 The warning signal of the self-contained breathing apparatus must be activated at 55+/-5 bar (for "BD mini" at
105 +/-5 bar).
 Activate the flushing function again to depressurise the apparatus.
Air-tightness and Warning Signal Activation Pressure of Self-contained Compressed Air Breathing
Apparatus if Air Supply is from a Breathable Air Network
After attaching the compressed air line breathing apparatus and self-contained breathing apparatus, carry out a
short inspection in the following order:
 Open the compressed air supply.
 Read off and check the operating (medium) pressure on the pressure gauge.
 Open the cylinder valve(s) on the self-contained breathing apparatus by making about two turns of the hand
wheel.
 Read the pressure gauge of the self-contained breathing apparatus:
 Minimum pressure 270 bar for 300 bar cylinders
 Minimum pressure 180 bar for 200 bar cylinders
 Close the compressed air supply (DSL and self-contained breathing apparatus).
 The compressed air line breathing apparatus is air-tight if the medium pressure drops by no more than 1 bar
within 1 min.
 Carefully activate the flushing function until air flows out, while closing off the outlet opening as much as
possible. This depressurises the DSL compressed air line breathing apparatus and the ASV switches over to
the self-contained breathing apparatus. The warning signal is activated at the ASV.
 Carefully activate the flushing function of the lung governed demand valve again, closing off the outlet opening
as much as possible.
 Watch the high pressure gauge on the self-contained breathing apparatus.
The warning signal of the self-contained breathing apparatus must be activated at 55+/-5 bar (for "BD mini" at

105 +/-5 bar).
GB
 Activate the flushing function again to depressurise the apparatus.
20 DSL Series