Manual - medicap

1 Introduction
1.1 Intended use
The Précise 1100 SD is a mains-operated measuring unit which can also be
used with batteries. It is used for determining oxygen content in percentage
form, for flow measurement at the output of oxygen concentrators and for
pressure measurement of non-aggressive gases (various pressure
measurement range options available). The measurement log and the
graphical displays can be printed out using the thermal printer.
Important notice!
The Précise 1100 SD may not be used for monitoring life support systems.
The oxygen concentration may only be measured in an oxygen + nitrogen
gas mix (e.g. oxygen concentrator).
1.2 Function description
An ultrasonic sensor is used to measure the oxygen concentration and flow.
This sensor needs no recalibration, although Medicap homecare
recommends that the unit measurements be checked annually.
The oxygen concentration measurement is based on the different sound
propagation times in oxygen and nitrogen. Flow measurement is carried out
by analysing different sound propagation times in and against the direction
of flow.
Pressure is measured by a pressure cell.
1.3 Important instructions for safety and use
The precondition for correct use of the Précise 1100 SD measuring unit is
thorough knowledge of and compliance with these instructions for use.
Operating manual P1100SD Rev. D 2012-01 3