ESO 2 ICU Ventilator
59
User Manual
Oxygen Monitor
Measurement Range:
0 - 100%
Resolution:
± 1%
Accuracy and Linearity:
± 2% of full scale (at constant temperature and pressure)
Response Time:
90% of final value in approximately 15 seconds (air to 100% O2)
Operating Temperature:
-20 to 50°C (-4 to 112°F)
Storage Temperature:
-5 to 40°C (23 to 104°F)
Relative Humidity Range:
0 to 99% (non-condensing)
Battery Back-up:
As per ventilator, see section 3.2.2.
High Priority Alarm:
Flashing, 2 x 5 audio pulses with 6 seconds repeat time.
Medium Priority Alarm:
Flashing, 3 audio pulses with 24 seconds repeat time
Low Priority Alarm:
Static with single beep sound
Alarm Mute:
30 seconds for high priority alarm
120 seconds for medium priority alarm
Low Alarm Set Range:
18% - 99% (± 1%)
High Alarm Set Range:
19% - 105% (± 1%)
Cable length:
2 m (6 ft), fully extended
Sensor
Type:
Galvanic fuel cell sensor (0 - 100%)
Life:
1500000
O2% hours at 20°C (68°F)
800000
O2% hours at 40°C (104°F)
Interference Gases and Vapours
Interference
Test
Gas
Mixture
Interference
in
O2%
Nitrous
Oxide
80%
N2O + 20% O2
1
to
1.5%
Carbon Dioxide
5% CO2 + 66.5% N2O + 28.5% O2
<
1%
Helium
50% He + 50% O2
<
1%
Humidity Effects
Sensor output is relatively unaffected by prolonged operation in either high or very low relative humidity.
If the sensor shows signs of being affected by condensation, dry the sensor with soft tissue.
CAUTION
DO NOT use heat to dry the sensor.
Temperature Effects
The sensor has a built-in temperature compensation circuit, and is relatively unaffected by temperature changes within the
operating temperature range given above.
Pressure Effects
The sensor measures O2 partial pressure, and its output will rise and fall due to pressure change (e.g. changes in barometric
pressure, or breathing system pressure).
An increase in pressure of 10% at the sensor inlet will produce a 10% increase in sensor output.
NOTE
Altitude compensation is automatically applied during calibration.
Appendix
Содержание ESO 2
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