Ohio Medical Corporation MiniOX 1, Руководство по эксплуатации

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P/N 711462 (Rev.3) 02/2016
Section 4
Operation
Set-up Procedures
1. Remove the contents from the shipping carton and
verify that you have one each of the following items:
• MiniOX
®
1 Oxygen Analyzer
• 9-Volt Alkaline battery
•
Oxygen Sensorand Deflector in Sealed Package
• 10’ Coiled Cable with twist collar
• Sensor Retaining Strap
• MiniOX
®
1 Operating/Maintenance CD
• Tee Adapter
2. Remove the sensor form the sealed package and
attach it to the coiled cable.
• Firmly press the connector until it snaps into
place; tighten the twist collar.
• Insert the opposite end of the coiled cable into
the jack on the side panel of the instrument;
tighten the twist collar.
3. Remove the deflector from the package.
• Insert the gasket into the open end of the
deflector, ensuring that the gasket is properly
seated within the deflector.
• Gently screw the deflector onto the sensor.
For monitoring in a breathing circuit, see
figure 4-1, installing the sensor in a breathing
circuit.
4. Attach the coiled cable to the instrument in the same
manner.
5. Remove the four screws holding the back panel in
place.
6. Install the battery.
7. Replace the back panel and screws.
8. After installing the sensor, allow to equilibrate prior
to calibration.
9. Proceed to Calibration procedures.
Calibration
The best method to calibrate the MiniOX
®
1 Oxygen
Analyzer is with 100% oxygen. Calibrating with oxygen
concentrations less than 100% or with room air is less
desirable, but still acceptable.
1. Press the green I/0 button on the front panel to turn
on the instrument.
2. Place the sensor in a stream of air with a known
oxygen concentration or in room air,.
3. Wait for a least one minute, or until the reading has
stabilized.
4. If the reading on the display is other than the known
oxygen concentration, adjust the reading using
the calibration dial. Turn clockwise to increase
the reading, or counter clockwise to decrease the
reading.
5. If the reading cannot be adjusted to the known
concentration value, the sensor or instrument is
malfunctioning and must be serviced.
Two-Point Linearity Check
The purpose of a two-point check is to determine the
linearity of the sensor. Serious deviation from linearity
( + 2%) indicates the sensor is nearing end-of-life. To
perform a two-point linearity check:
1. Place the sensor in a stream of a known oxygen
concentration between 90-100% until the reading
stabilizes.
2. Calibrate to match this concentration.
3. After calibration, measure room air; the reading
should be 20.8% +2%. (A +2% linearity variation is
allowed for differences due to the method of sample
introduction, and the precision of initial setting.) If
the variation is greater than 2%, repeat the two-point
linearity check. If the variation remains greater then
2%, replace the sensor.
Instrument Operation
The MiniOX
®
1 Oxygen Analyzer has a low battery
indicator. When the Low Battery indicator is activated,
LO BAT appears on the top left of the display. The
instrument functions normally for approximately eight
hours; however, replace the battery as soon as
possible.
If the sensor becomes disconnected while the
instrument is in use, the instrument displays between
-0.1 and +0.2.
The instrument is designed to read in percent from 0 to
100%; however, if incorrectly calibrated, it displays up to
199.
To maximize battery life, turn OFF the MiniOX
®
1
Oxygen Analyzer when not in use.
MiniO
X
®
1
Oxygen Analyzer Section 4, Operation
4-1