User's Manual

Monitoring ECG Understanding the ECG Display

TM80/TM70 Telemetry Monitor Operator’s Manual 7 - 17

◆ [Auto]: the TM80/TM70 will use the heart rate from the ECG measurements

as the alarm source whenever a valid heart rate is available. If the heart rate

becomes unavailable, for example the ECG module becomes disconnected,

the TM80/TM70 will automatically switch to PR as the alarm source.

◆ [Both]: both HR and PR are used as the alarm source for HR/PR.

7.6 Understanding the ECG Display

7.6.1 HR Digital Area

The HR digital area displays:

1. Parameter name

2. Measurement unit

3. Heart rate value

4. PR source: when ECG leads are not connected and valid PR value is detected, PR

source is displayed.

5. Activation state off symbol: when HR/PR alarm is switched on and valid HR/PR

value is detected, HR/PR alarm high and low limits in place of the activation state

off symbol are displayed.

7.6.2 About the HR Digital Area

■ The HR area displays heart rate in the unit of bpm with a resolution of 1 bpm.

■ If the HR measurement is invalid, “- - -” displays in place of the HR value.

■ The HR value displays “0”, when the HR value is less than 15 bpm.

■ When lethal arrhythmia alarms are switched off, corresponding alarm off message

is displayed in the HR digital area.

NOTE

• When [Alm Source] is set to [HR], systole beep comes from heart beat.

When [Alm Source] is set to [PR], systole beep comes from pulse rate.

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