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MAN-MAXPRO
REV. B.0.
Oxygen Enriched Atmospheres:
This instrument is safe for use in normal oxygen (20.9%v/v)
atmosphere. In enriched oxygen atmospheres (above 21%)
extreme caution should be exercised as electrical safety
certification is not applicable nor has it been tested as being
safe to use in such atmospheres.
Oxygen Deficient Atmospheres:
The LEL readings cannot be relied upon in atmospheres
deficient of oxygen. For example, most catalytic sensors
cannot be relied upon when oxygen is lower than 10% v/v.
Use extreme caution when the oxygen readings are below
10% v/v and do not enter any confined space when oxygen
alarm is operating and/or reading shows less than 19.5% v/v.
APPENDIX A - SPECIFICATIONS
83
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