Sierra Monitor Corporation 55, T10008 instruction manual Introduction

1.Introduction

1.1The SMC Model 55 is a portable oxygen efficiency monitor for personnel in confined work places. It is self-contained, light weight and battery operated. It does not require any adjustments by the user other than routine calibrations. The monitor reads true percent oxygen in the presence of any diluents including humidity and will not be affected appreciably by barometric pressure changes caused by elevation or weather changes.

OXYGEN DEFICIENCY MONITOR PAGE 1