This user manual provides instructions for the safe use, maintenance, and servicing of the Scott SIGMA 2 self-contained breathing apparatus.
The document serves as a comprehensive guide for personnel trained in the use of compressed air breathing apparatus. It outlines critical safety warnings, including the requirement for full training before operation and restrictions on usage by untrained individuals or those with facial hair that affects mask sealing.
The manual details the technical description of the SIGMA 2 system, which features a lightweight backplate and harness with a two-stage pneumatic system. It provides specific instructions for pre-use checks, donning and doffing procedures, cylinder replacement, cleaning, and scheduled maintenance intervals.
The manual must be used by personnel trained in the use and care of compressed air breathing apparatus.
The quality of air must meet EN 132 : 1990, with mineral oil content below 0.3 mg/m3 and water content not exceeding 50 mg/m3.
The apparatus must be serviced at least on an annual basis by certified personnel.