102
Protocol Systems, Inc.
Impedance Pneumography (RESP) Specifications
Characteristic
Specification
Sweep speed
3.13, 6.25, 12.5 mm/s; user-selectable
Amplitude range
1x, 2x, 4x, 8x, 16x
Excitation signal characteristics
65 µA RMS ±5% at 63.0 kHz pseudo sine wave
Sensing electrodes
User selectable RA-LA or RA-LL
Base impedance (in addition to 1k
Ω
resistors in ECG cables)
100 to 1200 ohms is normal monitoring range, approx. 1200-1500
ohms range produces a “NOISY SIGNAL, CHECK ELECTRODES”
equipment alert. Above approx. 1500 ohms produces a “RESP
FAULT, LEAD FAIL” equipment alert. Thresholds are dependent on
ECG cable type.
Impedance dynamic range
20 ohms
Signal bandwidth after detection
0.06 Hz (single pole) to 3.2 Hz (2 pole)
Breath detection threshold
140 milliohms or 2x CVA, whichever is greater
Respiration rate range
Adult/Ped: 0 (apnea), 2 to 150 breaths/min
Neonate: 0 (apnea), 3 to 150 breaths/min
Respiration rate accuracy
±2 breaths/min or ±2%, whichever is greater
Respiration rate source (RR)
When CO
2
is active, CO
2
is the BR source. Otherwise, RESP from
ECG is the RR source.
Apnea alarm delay accuracy
+1 second
Resolution
5 seconds
Apnea alarm delay settings
Central apnea only - alarm delay is set by the user
Adult/Ped = 6, 10, 15, 20, 25, 30 seconds
Neonate = 6, 10, 15, 20 seconds
Cardiovascular artifact rejection
(CVA)
Presence of CVA is detected automatically. Breaths will be picked in
the presence of CVA unless the Breath Rate is within 5% of the
Heart Rate or a sub-multiple of the heart rate.
Motion artifact rejection
not rejected
Obstructive apnea
not detected
Содержание Propaq 242
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