711449 (Rev.3) 02/2016
MiniOX
®
3000 Oxygen Monitor
Section 3, Operation
Section 3
Operation
This section describes the following operational
procedures and functions of the MiniOX
®
3000
Oxygen Monitor:
• Calibration
• Two-Point Linearity Check
• Setting the Alarms
• Alarm Conditions
• Silencing an Alarm
• Test Functions
• Installing the Sensor in a Breathing Circuit
• Mounting the Instrument with a Pole Bracket
Calibration
The MiniOX
®
3000 Oxygen Monitor requires
calibration:
• daily, while in operation
• when the operating environment changes
• after the monitor is turned ON
• if the sensor is disconnected and reconnected
to the instrument
Recommended practice of calibration is against
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When a more precise measurement is desired,
repeat calibration using 100% oxygen concentration.
Changes in pressure, humidity or temperature may
affect calibration accuracy (
See Appendix B, Effects
of Pressure, Humidity, and Temperature
).
Do not handle the sensor unnecessarily
during calibration or use. Body heat can
cause the sensor’s thermistor to change
disproportionately to the change in gas
sample temperature at the sensing electrode.
This can produce some error until thermal
equilibrium is restored.
To Calibrate In Room Air (Figure 3-1):
1. Expose sensor to room air.
2. Press
I/0
to turn ON the instrument.
•
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3. Press 21%. The following appears on the
display:
PRESS 21%
CALIBRATE
PRESS
I/0
EXPOSE SENSOR
TO ROOM AIR
PRESS
UNLOCK
AFTER 20 SECONDS
CALIBRATION COMPLETE AND
20.8% + 2% DISPLAYED
1
2
3
4
5
3-1
CAUTION
Figure 3-1
Calibrating the MiniOX
®
3000 Oxygen Monitor in Room Air
