Portable Oxygen Monitor OPERATING & SERVICE INSTRUCTIONS MX300-I

Introduction MX300-I
Teledyne Analytical Instruments 14
The oxygen level is calculated and then displayed on the liquid
crystal display (LCD) on the front panel.
In the MX300-I monitor, user-programmed high and low alarm set
points are stored in random access memory (RAM), which resides within
the microprocessor. The oxygen level calculated by the microprocessor is
compared to these set points, and an alarm activated, if necessary.
The audio alarm is used for both the concentration alarms and the
sensor disconnects alarm. The user can manually bypass the
concentration alarm for a set amount of time. Pressing the ALARM
SILENCE key () will provide an audible alarm override for 115
seconds. After that, if the alarm condition still prevails, the audible
alarm will resume. The ALARM SILENCE key () can also be used
to interrupt the sensor disconnects audible alarm.