MiniOX
3000 Oxygen Monitor
®
•
each time the monitor is turned ON
•
following sensor disconnection/reconnection
•
when environmental conditions (presssure,
humidity and temperature) change
When a MiniOX
3000 Oxygen Monitor with a sensor
®
connected is turned ON, the monitor performs a self-
test and a calibration requirement occurs.
•
"CAL" flashes on the display, telling the
operator to carry out the calibration procedure.
The calibration procedure is initiated by exposing the
sensor to a calibration gas [either room air (defined as
oxygen concentration of 20.8%) or 100% oxygen] and
pressing the corresponding key on the keypad. The
following appears on the display:
•
•
the selected calibration gas concentration.
When the
key is pressed the monitor displays:
•
"CAL"
•
a 10-segment bar graph which "counts down"
two seconds per bar for 20 seconds.
The monitor automatically calibrates to the selected
concentration. At the end of the 20 seconds, the
monitor:
•
emits a beep indicating that calibration is
complete
•
enters the operating mode
See Section 3, Calibration
Low/High Oxygen Concentration Alarms
The MiniOX
3000 Oxygen Monitor has audible
®
and visual alarms that activate when oxygen
concentrations exceed preset low or high alarm
settings. Default settings are 18% and 50%,
respectively.
When the MiniOX
3000 Oxygen Monitor detects an
®
oxygen concentration that exceeds the preset alarm
limit:
•
the red LED for that alarm flashes
•
an audible alarm activates
•
the measured concentration appears in the
display
The operator can silence the audible alarm for
three 30-second intervals for a total of 90 seconds;
however, the visual alarm continues to flash. At
the end of the silence period, the audible alarm
reactivates if the alarm conditions is not corrected.
(See Section 3, Silencing an Alarm)
Low Battery Alarms
The MiniOX
®
stage battery alarm that warns of depleted and
expired battery voltage:
•
The first alarm alerts the operator that the
monitor has approximately six hours of
operating time remaining:
•
a warning message appears in the display
•
an audible alarm sounds at 30-second
intervals
•
If the operator does not replace the battery
after this alarm, a second low battery alarm
activates when the battery is no longer able to
support monitoring. The monitor:
•
displays a warning message
•
activates an audible and visual alarm (See
Section 3, Low Battery Alarms)
Sensor Indicator
During monitor, the MiniOX
displays a warning message; audible and visual
alarms activate if:
•
the oxygen sensor becomes disconnected
•
the cable fails or disconnects from the sensor
or instrument
•
the sensor membrane is perforated
•
the thermistor circuit opens
Calibration Needed Indicator
The MiniOX
®
•
when the monitor is turned ON
•
following sensor disconnection/reconnection.
If a calibration is performed using a calibration
gas other than room air or 100% oxygen, or if the
microprocessor detects a calibration error during
normal operation:
•
the display flashes a warning message: "CAL"
711449 (Rev.3) 02/2016
Section 1, Introduction
3000 Oxygen Monitor features a two-
3000 Oxygen Monitor
®
3000 Oxygen Monitor flashes "CAL".
1-3