Chapter 9

Alarms

When a ventilator inoperative condition is detected, the Vent Inop indicator will display a steady red light, and the ventilator will sound a five-tone audible alarm sequence.

The Vent Inop alarm cannot be reset by an operator. It cannot be auto-reset or silenced. The ventilator must be serviced by a qualified service representative, in order for the Vent Inop audible and visual alarms to be cleared.

Safety Valve

This indicator signals that the Safety Valve is open and the ventilator is not providing breath support to the patient. It is accompanied by a five-tone audible alarm sequence and a Safety Valve Open message in the touch screen display.

The Safety Valve opens automatically whenever the ventilator is not able to provide breath support to the patient. It allows the patient to spontaneously breathe room air through the ventilator system.

The Safety Valve Open condition is normal during start-up and restart, and it automatically turns off when the start-up sequence is complete. If this condition occurs at any other time, it cannot be reset. Immediately use an alternative ventilation source and call for service.

WARNING:

When the safety valve open indicator is lit, the ventilator does not provide

 

any ventilatory support to the patient. Immediately use a backup means of

 

ventilatory support.

 

 

Alarm Silence

The indicator () on the Alarm Silence key will illuminate with a steady yellow light whenever the operator presses the alarm silence control. The indicator remains lit for two minutes after the Alarm Silence key is pressed. If Alarm Silence is active and an alarm takes place that involves an operator alarm limit being exceeded, the alarm will be anunciated visually, but Alarm Silence will continue to be active and the Alarm Silence timer will continue to time out. Alarms that can not be silenced are listed in Table 9-1: “Alarm Alert Messages” on page 9-5.If Alarm Reset is pressed at any time during the Alarm Silence period, the Alarm Silence period is terminated. If any high or medium priority alarm condition exists after pressing Alarm Reset, an audible alarm sounds.

WARNING:

Visually monitor the patient and ventilator during the Alarm Silence period

 

to ensure that alarms do not go undetected. Allowing alarm conditions to

 

continue without intervention may result in harm to the patient and/or

 

ventilator.

 

 

9-10

Respironics V200 Ventilator Operator’s Manual

REF 1057983 A

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Philips V200 manual Safety Valve, Ventilatory support
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