Datex-Ohmeda D-Tec Operations Instructions download pdf (Page 13)

Page 8 D-Tec Vaporizer

August 2001 O & M Manual Part No. 1107-0622-000

3.3.4 Low Agent Level

The amber LOW AGENT light flashes accompanied by a

long tone operation of the auditory alarm which is a

repetitive 1.5 seconds ON and 0.5 seconds OFF. The

alarm indicates that there is less than 60 ml of agent

remaining in the sump.

Pressing the mutes the auditory alarm for a period of 120

seconds to allow time to fill the vaporizer to above 60 ml.

If a LOW AGENT condition occurs during normal

operation, the alarm is activated but the green

OPERATIONAL light remains illuminated.

Fig. 7 Low Agent Level

3.3.5 No Output

The NO OUTPUT alarm is activated if any one of the

following occurs:

1. The agent level decreases to below 20 ml.

2. The vaporizer is tilted.

3. A power failure of longer than 10 seconds duration occurs.

4. An internal malfunction is detected.

The alarm consists of a flashing red NO OUTPUT light

accompanied by short tone operation of the auditory alarm

which is a repetitive 0.5 seconds ON and 0.5 seconds OFF.

The alarm indicates that the vaporizer has closed down and

is no longer delivering any vapor.

Fig. 8 No Output

If the NO OUTPUT alarm occurs while the vaporizer is in use, the vaporizer dial must be turned to q. This

mutes the auditory alarm and illuminates the red light continuously. Either an alternative vaporizer or an

alternative method of anesthesia must be used.

If the NO OUTPUT alarm is activated as a result of a power failure and

the dial is at q when the power supply is restored, the alarm and

display test is activated and then the vaporizer returns to either the

WARM-UP or the OPERATIONAL mode.

If the dial is not at q when the power supply is restored, the NO

OUTPUT alarm continues and can only be cancelled by turning the dial

to q. In this condition the alarm and display test is not activated and

the vaporizer returns to either the WARM-UP or the OPERATIONAL

mode after a 10 second delay.

3.3.6 Alarm Battery Low

The amber ALARM BATTERY LOW light continuously illuminates to

indicate that the alarm battery voltage is low. A new battery must be

fitted within eight hours to support the NO OUTPUT alarm in the

event of a subsequent mains failure condition. There is no auditory

alarm in the ALARM BATTERY LOW condition.

Fig. 9 Alarm Battery Low

AA.43.041

AA.43.042

AA.43.043

DESFLURANE

NO OUTPUT

LOW

AGENT

ALARM

BATTERY LOW

ARM

-UP

OPERATIONAL

DESFLURANE

NO OUTPUT

LOW

AGENT

ALARM

BATTERY LOW

ARM

-UP

OPERATIONAL

DESFLURANE

NO OUTPUT

LOW

AGENT

ALARM

BATTERY LOW

ARM

-UP

OPERATIONAL

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Datex-Ohmeda D-Tec Operations Instructions Page 13

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