9 Technical Specifications
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48
201000401000 / Rev 04
9.2 Application Software ers2
9.3 Receiver
9.3.1 Summary
Description Data
Heart rate calculation The heart rate is calculated by the ers2 software which
uses the Pan Tompkins algorithm for QRS detection.
Tall T-wave rejection capability For T-waves <= 0.8 mV, the heart rate indication is
within the specified error limits (+/– 10 % or 5 BPM)
Response to irregular rhythm A1 / (3a): 40 BPM
A2 / (3b): 30 BPM
A3 / (3c): 120 BPM
A4 / (3d): 90 BPM
to IEC 60601-2-27
Response time to changes in heart
rate
80 BPM increase to 120 BPM: max. 6 s
80 BPM decrease to 40 BPM: max. 12 s
Time to alarm for tachycardia B1: 11 s
0.5 B1: 12 s
2 B1: 23 s
B2: 11 s
0.5 B2: 12 s
2 B2: 16 s
To IEC 60601-2-27
Visual alarm Location: ers2 software monitoring screen
Color/Modulation: 1-Hz modulation between red and
yellow
Size: 160 23 pixels
[Monitor resolution 1920 1080]
Visual alarm update: every 2 min
Audible alarm Source: PC sound card
Frequency of sound: 1 Hz [on/off]
Audible alarm update: every 2 min
Description Data
Transmission mode Bluetooth 2.1 + EDR, class 1
Frequency range 2402–2483.5 MHz, ISM band
Operating mode continuous operation
Power supply via USB current (max.): 175 mA
Protection class SK II
Degree of protection IP 20
Max. output power 18.0 dBm
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