RenNuo Bioinformation Science and Technology Co. LTD RN141 用户手册
6
Frequency response:
a) Applying a square wave of 3 mV and 100ms to a recorder, the bias
between the baseline after the pulse appears and the baseline before the
pulse appears should not exceed 0.1 mV, and the slope after the pulse
end point should be not more than 0.3 mV/s, the overshoot of the pulse
edge should be less than 10%;
b)For the sinusoidal signal with a frequency of 0.67Hz~40Hz, the
response magnitude should be between 140% and 70% of the
magnitude at 5Hz (-3dB~3 dB);
c) The response amplitude of the 1.5mV 40ms triangular wave pulse
group for simulating a series of R wave narrowband should be between
60%~110% of the response amplitude at 1.5mV 200ms triangular wave
pulse group.
Minimum detection signal:
When the operating speed is set to 25mm/s and the gain is set to
10mm/mV, after a sinusoidal signal of 10Hz, 50μV(peak - Valley value) is
applied, there should be an apparently visible deflection.
Gain stability:
After the device is powered on for 1min, the gain change in 3min cannot
exceed 3% (under stable ambient conditions).
Heart rate measurement range:
Heart rate display range: 30bpm~200bpm, error: ±1bpm
Measurement time
setting
1. 30s
2. 180s
Product life 5 Years
Typical operation time
or number of
procedures of battery
Battery endurance of about 8 hours
Typical service life of
5 years