Mindray BeneView T1, Operator'S Manual

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10-2
10.3 Selecting the Active Alarm Source
In most cases the HR and pulse numerics are identical. In order to avoid simultaneous alarms on HR and Pulse, the
monitor uses either HR or Pulse as its active alarm source. To change the alarm source, select [ Alm Source ] in the [ ECG
Setup ] or [ SpO2 Setup ] menu and then select either:

[ HR ]: The monitor will use the HR as the alarm source for HR/pulse.

[ PR ]: The monitor will use the PR as the alarm source for HR/pulse.

[ Auto ]: If the [ Alm Source ] is set to [ Auto ], the monitor will use the heart rate from the ECG measurement as the
alarm source whenever the ECG measurement is switched on and a valid heart rate is available. If the heart rate
becomes unavailable, for example if leads becomes disconnected, and a pulse source is switch on and available, the
monitor will automatically switch to Pulse as the alarm source. When the Leads Off condition is corrected, the
monitor will automatically switch back to the heart rate as the alarm source.
10.4 QRS Tone
When PR is used as the alarm source, the PR source will be used as a source for the QRS tone. You can change the QRS
volume by adjusting [ Beat Vol ] in the [ SpO2 Setup ] menu. When a valid SpO
2
value exists, the system will adjust the
pitch tone of QRS volume according to the SpO
2
value.