LifeSense® II Specifications
Pulse Oximeter Specifications
Oxygen Saturation Display Range: 0 to 100 % SpO2
Pulse Rate Display Range: 18 to 321 beats per minute (BPM)
Infrared: 660 nanometers @ 0.8 mW max. average
Red: 910 nanometers @ 1.2 mW max. average
Accuracy – Sensors: Declared accuracy data for compatible sensors can be found in Nonin’s Sensor Accuracy document.
*This information is especially useful for clinicians performing photodynamic therapy.
Respiration Range: 0 to 99 respirations/minute
3 to 50 respirations/min ± 2
51 to 60 respirations/min ± 3
Test method summary: To determine the rated respiration rate, calibrated CO2 gas tanks are used as the respiration rate is changed from 3 to 60 BrPM.
EtCO2/CO2 Range: 0 to 99 mmHg (0 to 13.2 kPa)
EtCO2/CO2 Accuracy1, 2:
±0.2 kPa / ±2 mmHg, +8% of reading3
540 – 795 mmHg (720 – 1060 hPA)
(EtCO2/CO2 reading reaches its steady state accuracy within 10 minutes after power up. From maximum storage temperature, monitor reaches steady state accuracy 19 minutes after power up.)
Calculated Update Frequency: Once every breath (“NO BREATH” alarm after 30 seconds)
Sampling Rate: 4 Hz (4 times per second)
Total System Response Time: <7 seconds (includes delay time and rise time)
Drift of Measurement: Within CO2 accuracy specifications for 6 hours of continuous monitoring
Measurement: Automatic barometric pressure compensation and CO2 temperature compensation
1 There is no known adverse effect on performance due to cyclical pressure up to 10 kPa.
2 There is no degradation in EtCO2 measurement accuracy as a function of BrPM and inspiratory/expiratory (I/E) time ratio.
3 Presented concentration of CO2 and EtCO2 can be false, indicating a high presence of nitrous oxide and other interfering gases.
The table below shows the CO2 and EtCO2 concentration corrections. Only use agents listed in the table below.
|Agent Concentration||Correction of Presented CO2 to Real Concentration|
|50 – 70% N2O||Presented CO2 x 0.75 = Actual CO2|
|30 – 50% N2O||Presented CO2 x 0.85 = Actual CO2|
|0 – 30% N2O||No correction|
Power Supply: 100 – 240 VAC 50 – 60 Hz
Power Consumption: 3.6 W with battery operation
Input: 9 W with power supply
12 VDC, 1.5 A
Type: Lithium Ion (Li-Ion) internal battery, non-field replaceable, rechargeable
Battery Capacity: Approximately 5 hours
Charging Time: Approximately 9 hours
Dimensions: 200 x 135 x 50 mm (7.9 x 5.3 x 2 in.)
Weight: 865 grams (1.9 pounds)
Memory: 36 hours (assuming continuous operation)
Operating: 0 to 40 °C (32 to 104 °F)
Storage/Transportation: -40 to 70 °C (-40 to 158 °F)
Time (from storage) for monitor to be ready for its intended use:
10 minutes to warm from -40 to 0 °C
19 minutes to cool from 70 to 40 °C
Applied part temperature will not exceed 41°C as measured during a controlled environment test.
Operating: 15% to 93% noncondensing
Storage/Transportation: Up to 93% noncondensing
Operating: Up to 2,740 meters (9,000 feet)
Atmospheric Pressure: 540 to 795 mmHg (720 to 1060 hPa)
Pump Flow: 75 ml/min (minimum sample flow rate: 60 ml/min)
Flow Accuracy: ±15 ml/min
High and Medium Priority Alarms (at 1 m):
Sound Pressure Level: 74.6 to 75.5 dB
Classification per ANSI/AAMI ES60601-1 and CAN/CSA-C22.2 No. 60601-1:
Type of Protection: Internally powered class II (with power supply)
Degree of Protection: Type BF-Applied Part
Mode of Operation: Continuous
Enclosure Degree of Ingress Protection: IP22
LifeSense® II Troubleshooting
A. Prior to turning on the monitor:
- Insert the filter into the trap.
- Insert the trap and filter into the monitor – insert the top of the trap first, then snap in bottom. (Look for the numbers 1 and 2 embossed on the monitor in the area where the trap inserts.)
B. Turn on the monitor.
- Disable audible alarms by pressing the ‘NO ALARM’ icon on the start-up screen.
- After starting the monitor and pump is running (about 15 seconds), you will see ‘WARM UP’ then ‘NO BREATH’ displayed.
C. Verify that trap and filter are seated properly
- Hold your finger over the trap inlet where the cannula connects. After a few seconds, the pump will slow and you will get an ‘OCCLUSION’ display.
- Release your finger and the monitor is ready. This indicates that the trap and filter are positioned correctly. (Skip to Section II.)
- If, after 5-10 seconds, ‘NO BREATH’ is still displayed, the filter is not seated properly. After re-seating the trap and filter, repeat Step 1 above. If again this does NOT show an ‘OCCLUSION’ alarm, then there may be trouble with the unit. (Proceed to Section D below.)
D. Checking the monitor
- With the unit running remove the trap and filter and place your finger over the small hole in the recessed area of the monitor. The monitor’s pump will stop running.
- Restart the pump by pressing the red ALARM/RESET button with your finger still over the hole.
- If the pump restarts and displays OCCLUSION followed by ‘TRAP FULL/PUSH ALARM’ the monitor is working properly. Change filters and try to insert the trap and filter again. If the pump restarts and runs without ‘TRAP FULL/PUSH ALARM’ displayed, then the monitor is not functioning properly. Contact Nonin Technical Service.
II. DURING OPERATION
A. Occlusion indication during operation
- If the monitor occludes, ‘TRAP FULL/PUSH ALARM’ will be displayed.
- Reset the monitor up to two (2) times by pressing the ALARM/RESET button.
- If the monitor occludes again, the pump will run for several seconds then shut off and display ‘OCCLUSION’ followed by ‘TRAP FULL/PUSH ALARM’.
- To determine if the occlusion is in the cannula or the filter/trap combination, disconnect the cannula from the trap (Luer connector) and press the ALARM/RESET button. .
If the monitor restarts and runs properly for 10-15 seconds, then the occlusion is in the cannula and the cannula should be replaced. If the unit occludes and shows the ‘TRAP FULL/PUSH ALARM’ the occlusion is in the filter. Replace the filter and restart the monitor by pressing the ALARM/RESET button.
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