VS 8/VS 8A Vital Signs Monitor Operator’s Manual 7 - 1
7 Monitoring PR
7.1 PR Introduction
The pulse numeric counts the arterial pulsations that result from the mechanical activity 
of the heart.The pulse value can be from SpO
2
 or NIBP. The PR parameter area displays its 
source.
7.2 PR Display
• A functional tester or SpO
2
 simulator can be used to determine the pulse rate 
accuracy.
7.3 Changing the PR Settings
7.3.1 Changing the PR Alarm Settings
In Continuous Monitoring mode, you can change the PR alarm settings. Follow this 
procedure:
(1) PR unit
(2) PR high limit
(3) PR low limit
(4) PR Source: it can be sourced from SpO
2
 or NIBP, with SpO
2
 taking precedence.
(5) Pulse rate (PR): detected pulsations per minute.
(6) In Spot Check mode, select this area to mark the pulse as regular or irregular. It can 
be switched on or off. For details, see 7.3.3 Enabling Irregular PR.
7 - 2 VS 8/VS 8A Vital Signs Monitor Operator’s Manual
1. Select the PR numeric area to enter the PR dialog.
2. Select the PR Alarm tab.
3. Set the alarm properties of PR.
7.3.2 Changing the Pulse Volume
To change the pulse volume, follow this procedure: 
1. In Continuous Monitoring mode, select the PR numeric area to enter the PR 
dialog. In Spot Check mode, select the Main Menu quick key → from the 
Parameters column select Setup → select PR.
2. Select PR Setup tab.
3. Set the Pulse Volume to an appropriate level.
7.3.3 Enabling Irregular PR
To enable the Irregular PR function, follow this procedure:
1. Select the Main Menu quick key → from the Configuration column select 
Workflow → input the required password → select  . 
2. Select   on the right of the workflow to be set. Make sure the workflow is 
under Spot Check.
3. Select Parameters Setup → PR.
4. Switch on Irr. PR Switch.