VS 8/VS 8A Vital Signs Monitor Operator’s Manual 5 - 9
5.9 Latching Alarms
The latching setting for physiological alarms defines how alarm indicators behave if you
do not reset the alarms.
■ If you do not “latch” physiological alarms, their alarm indications disappear when
the alarm condition ends.
■ If you “latch” physiological alarms, all visual and audible alarm indications remain
(if configured) until the alarms are reset. For latched alarms the time when the
alarm is last triggered is displayed behind the alarm message.
The monitor can be set to separately latch visual indications or simultaneously latch the
visual and the audible indications.
■ When visual indications are latched, visual indications, including alarm lamp,
alarm message and its background remain when the alarm condition ends and the
time when the alarm last triggered is displayed behind the alarm message.
■ When audible indications are latched, the monitor continues to issues alarm
sounds when the alarm condition ends.
To set how you want to latch the physiological alarms, see section 16.5.3 Latching
Physiological Alarms.
• Changing alarm priority may affect the latching status of the corresponding
alarm. Determine if you need to adjust the latching status for the specific
alarm when you have changed its alarm priority.
• When the alarm system is reset, latched physiological alarms are cleared.
5.10 Nurse Call
The monitor provides a nurse call connector to output a nurse call signal when a user-
defined alarm occurs. To obtain a nurse call signal, use the nurse call cable to connect
the hospital nurse call system with the monitor’s nurse call connector.
Alarms are indicated on the nurse call device only when the following conditions are
met:
■ The nurse call system is enabled.
■ A user-defined alarm occurs.
■ Alarms are not paused or reset.
5 - 10 VS 8/VS 8A Vital Signs Monitor Operator’s Manual
• Do not rely exclusively on the nurse call system for alarm notification.
Remember that the most reliable alarm notification combines audible and
visual alarm indications with the patient’s clinical condition.
5.11 Testing Alarms
The monitor automatically performs a selftest at startup. Check that an alarm tone is
heard, and the alarm lamp illuminates, one after the other, in red, yellow, and cyan. This
indicates that the visible and alarm indicators function correctly.
To further test individual measurement alarms, perform measurement on yourself or
using a simulator. Adjust alarm limits and check that appropriate alarm behavior is
observed.
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