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Beat2Phone ECG Instruction Manual
Figure 6-29: The sensor is upside down in the electrode strap.
Someone wearing a pacemaker can see pacing spikes of about 2 ms in length at
various positions in relation to the PQRST complex, depending on the pace
mode of the pacer.
6.7
Beat2Phone application messages
For some reason monitoring has stopped in the sensor
– This message ap-
pears if the user removes the sensor from the electrode strap without stopping
the measurement in the mobile application and then connects the sensor to the
charging connector. This message can also appear if, for some reason, the sen-
sor has stopped the measurement, for example if the sensor battery has run out.
Select
DISMISS
to continue.
Something went wrong
: This message appears if the user tries to create a pro-
file, restore a profile, or edit a profile while the mobile device is not connected to
the internet. Enable mobile data or connect to a wi-fi network to continue. This
message can also appear if the user tries to transfer recordings from the sensor
to the mobile device while the sensor is not powered on. Shake the sensor or
place it in the charging station to continue.
6.8
Mode of operation ON/OFF
During monitoring, the sensor operation mode is non-continuous, as the sensor
operation time is limited to 24 hours by memory capacity and charging an empty
battery and reading a full memory will take 2 hours. The duty cycle consists of
ECG registration to sensor memory – ON time – and reading of the memory and
charging the sensor – OFF time. For maximum ON time, both the memory and
the battery capacity must be full when starting ECG registration. 24/2 duty cycle
may not be the most practical for users, whereas 11/1 may suit better for daily
monitoring with morning and evening maintenance breaks.
6.9
Measurement accuracy
The sensor measures the electrode voltage at 10 uV accuracy. Poor electrode
connection and chest movement will cause signal degradation that can hide