SECTION 5: OXYGEN MONITOR (OPTIONAL FEATURE)
Part No. 715-0080, Rev. B
- 54 -
For oxygen readings to be accurate, the oxygen monitor must be thermally stable when
calibrated and when measurements are taken. Calibration should also be done at the same
pressure as when in use due to the fact that the flow rate of sample gas can change the back
pressure at the sensing point, changing the oxygen reading. Never calibrate at a pressure
above 2 atmospheres as this is beyond the sensor’s intended use. The sensor should be
calibrated and used in environments < 95% relative humidity and placed upstream of any
humidifier to reduce the risk of water condensation which can affect the oxygen sensor.
CAUTION:
Dropping or severely jarring the oxygen sensor after calibration may shift the
calibration point enough to require recalibration.
OPERATIONAL ALARMS AND WARNINGS
When the measured oxygen concentration falls out of the user-selected range, either “HI” or “LO” will
flash on the OXYGEN screen approximately every 3 seconds. An audible alarm will also be heard
every 3 seconds. Pressing the
MUTE
button will silence the audible alarm for approximately one
minute.
TEST OF OPERATIONAL ALARMS
To ensure the oxygen monitor is generating the proper alarm indications, the following instructions
should be followed:
1.
After the oxygen sensor is placed in the area to be monitored, verify the out-of-range alarms are
functional by setting the oxygen high and low alarm limits beyond the oxygen readings of the
area.
a.
An audible alarm should sound.
b.
A “HI” or “LO” visual indicator should flash on the OXYGEN display screen.
2.
Verify the sensor alarm is functional by disconnecting the oxygen sensor from the cable
attached to the incubator.
a.
An audible alarm should sound.
b.
Error code “E7” should flash on the OXYGEN display screen.
Содержание AirBORNE A750i
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