User's Manual Part 3

10-5
10.1.1.9. Recorder
Technical Parameters
Technical Detail
Technique:
Thermal line recorder at 3885-B Base Station
Data Type:
Single or Dual Waveform; Tabular
Paper Speed:
12.5 or 25mm/sec continuous
10.1.1.10. Gating
Technical Parameters
Technical Detail
Technique:
Cardiac or Peripheral
Digital Pulses:
3.3 p-p signal with a pulse duration of 10ms ± 3ms
10.1.1.11. Vital Signs
10.1.1.11.1. ECG
Technical Parameters
Technical Detail
Lead Set Configuration:
3 and 5 lead
Lead Color:
AAMI/AHA and IEC
Lead Configurations:
I, II, III, V, AVF, AVR, AVL
Lead Fail:
Passive, sensing signal imbalance
Input Impedance:
> 2.5MΩ (according to IEC 60601‐2‐27, 50.102.3)
Electrode Contact
Impedance:
≤ 20K ohms @ 10 Hz
Heart Rate:
30 - 250 bpm
Heart Rate Accuracy:
± 1% or ± 5 BPM, whichever is greater
Heart Rate Resolution:
1 beat per minute (BPM)
Heart Rate T-Wave
Rejection:
1.3 mV with a 1mV QRS amplitude
Cardiotach Sensitivity:
200 μV minimum
Cardiotach Bandwidth:
0.5 - 40 Hz
Heart Rate (HR)
Averaging Method:
Five point Mean filter
Heart Rate Meter
Accuracy and Response
to
Irregular Rhythm:
A1: Ventricular bigeminy: 40 BPM
A2: Slow alternating ventricular bigeminy: 30 BPM
A3: Rapid alternating ventricular bigeminy: 59 BPM
A4: Bidirectional systoles 90 – 110 BPM
Response Time of Heart
Rate Meter to Change
in Heart Rate:
HR change from 80 to 120 BPM: 5 sec
HR change from 80 to 40 BPM: 9 sec
Time to Alarm for
Tachycardia:
B1 ‐ Vent Tachycardia
1 mVpp, 206 BPM:
Gain 0.5 (12.03, 11.04, 14.1, 11.8, 11.4) Average: 6.25 sec (The
monitoring system may temporarily exit the alarm condition
during the arrhythmia waveform duration.)
Gain 1.0 (11.9, 11.6, 9.2, 9.6, 10.9) Average: 2.59 seconds
Gain 2.0 (8.8, 9.1, 10.3, 9.4, 12.1) Average: 3.93 seconds
B2 ‐ Vent Tachycardia
2 mVpp, 195 BPM:
Gain 0.5 (9.0, 10.4, 12.3, 8.1, 10.4) Average: 3.99 seconds
Gain 1.0 (8.4, 7.7, 12.5, 7.7, 8.3) Average: 1.82 seconds
Gain 2.0 (9.7, 12.6, 8.9, 11.8, 8.3) Average: 4.01 seconds