Alarm Conditions And Priorities; Multiple Alarms; Backlight Operation; External Power Supply Operation - Maxtec MaxO2 ME+p Instructions For Use Manual

3.3 Alarm Conditions and Priorities
In the event of either a low alarm or high alarm condition, the corresponding LED will begin
to flash, accompanied by the audio buzzer. Pressing the SILENT key
buzzer but the LED and the alarm value digits on the display will continue to flash until the
alarm condition has been rectified. If the alarm condition still exists 120 seconds after silencing
the audio buzzer, the beeper will start to sound again.
An alarm condition will remain until the actual oxygen concentration or pressure is within the
alarm range.
To help differentiate the level of priority, the monitor provides three unique audible sequences
ALARM
ALARM
PRIORITY ALARM LED
Line Power
Informational
Plugged In
Line Power
Informational
Unplugged Yellow Pulse
External DC
Power Supply
Informational Solid Yellow
Voltage Out
of Range
No oxygen sensor
Medium
attached (EO2)
Battery Voltage
too low for
Medium
device to
operate (E04)
Oxygen/
pressure level
Medium
above the high
alarm setting
Oxygen/pressure
level below the Medium
low alarm setting
Oxygen level
below the low
oxygen alarm High Pulsing Red
setting and
lower than 18%
3.3.1 Multiple Alarms
When multiple alarms occur the LOW or HIGH alarm LED will flash respectively along with the
numeric alarm values that have been triggered. If both a LOW and HIGH alarm are triggered at
the same time the highest priority LED and tone will be produced. The alarm LEDs and tones
will automatically default to the highest priority alarm. Alarms will automatically clear once
the reading has returned within the specified alarm window.
3.4 Backlight Operation
To turn on the backlighting:
1. When the unit is on, pressing the Backlight
30 seconds. Additional presses will turn off the backlighting.
2. If the device is being used in a dark location, press any key to activate the back light.
CAUTION: Excessive use of the backlight can reduce the life of the batteries.
3.5 External Power Supply Operation
To extend the life of the batteries a Maxtec approved external power supply can be purchased.
Once connected to the unit, total power is supplied by the external power supply. The batteries are
still required to be in the unit and will provide emergency power in the event main AC power is lost.
NOTE: Use only the Maxtec approved external power supply in Section 10.0 Spare Parts and
Accessories.
WWW.MAXTEC.COM • (800) 748-5355
will deactivate the
LOW HIGH AUDIBLE
ALARM LED ALARM
Off Off 2 Pulses
Single Single
2 Pulses
Yellow Pulse
Solid Yellow 2 Pulses
Pulsing Pulsing
3 Pulses
Yellow Yellow
Pulsing Pulsing
3 Pulses
Yellow Yellow
Pulsing
Off 3 Pulses
Yellow
Pulsing
Off 3 Pulses
Yellow
Off 5+5 Pulses
key will turn the backlighting on for
NOTE: The power supply is not a battery charger.
WARNING: Do not position the equipment in a way that it would be difficult to unplug the
power supply. Unplugging the power supply is the only means of disconnecting or isolating
the equipment from AC mains power.
4.0 SENSOR REMOVAL AND
REPLACEMENT
The MaxO ME+p is shipped with a new MAX-550E oxygen sensor.
2
Although the sensor has a very long expected life, eventually the sensor will require replace-
AUDIBLE
ment. Removing or installing a sensor, when necessary, is a very simple procedure.
ALARM REPEAT
To remove and install a new sensor:
1. Grasp the sensor in one hand and, with the other hand, unscrew the cable connector
No Repeat
counter-clockwise at the sensor.
2. Pull out the cable connector plug from the expired sensor.
3. Unscrew the flow diverter from the sensor and discard the expired sensor or return it
No Repeat
to Maxtec for proper disposal.
NOTE: The sensor contains lead and lead acetate, be sure to dispose of expired sensors in
accordance with hospital, local, state, and federal regulations, or return to Maxtec for proper
Every 35 Sec.
disposal or recovery.
4. Remove the new sensor from the packaging and remove the protective film from the
sensor face.
5. Insert the cable connector plug into the receptacle of the new sensor and tighten the
Every 25 Sec.
cable connector.
6. Screw the flow diverter onto the new sensor.
7. Wait approximately 20 minutes for the sensor to reach equilibrium.
8. Calibrate the new sensor.
Every 25 Sec.
NOTE: If the monitor is on when the sensor is detached and replaced, the monitor will auto-
matically force a re-calibration. The display will read "CAL".
NOTE: If the cable locking nut is not fully fastened onto the sensor, then the sensor may not
function properly.
Every 25 Sec.
5.0 PRESSURE MONITOR TESTS
5.1 Pressure Monitor Accuracy Test
Every 25 Sec.
A Pressure Monitor Accuracy Test is recommended annually to verify performance of the pres-
sure monitor. The process involves applying a known pressure to the device and confirming
the readings using a calibrated manometer (pressure gauge). Use a calibrated manometer
with accuracy ≤ ±0.5 cmH2O.
Every 15 Sec.
1. Turn the device on and zero the pressure reading. (See section 2.3.5)
2. Use a clean syringe with a 4-way stopcock or tee and create the test setup shown.
3. Slowly apply pressure with the syringe to several test points across the range of
pressure measurement
the device may result in permanent damage to the pressure sensor.
4. The readings between the device and the calibrated manometer should be within
±1.0 cmH2O. Contact Maxtec technical service if the device fails to function as expected.
MaxO2 ME+p monitor
11
DO NOT use rechargeable batteries.
WARNING: Do not exceed 60 cmH2O. Over pressurizing
Syringe
Calibrated manometer
4-way
stopcock
or tee
ENGLISH