Covidien Puritan Bennett 540, User Manual, Page: 22 / 141

Safety Information
1-10
Puritan Bennett 540™ Ventilator User’s Manual
Precautions Regarding Oxygen
Precautions Regarding Electromagnetic Interference
1.4 Symbols and Markings
Caution
•
The oxygen supply hose ages even when it is not in use and should be replaced periodically. The exhalation
date may be located on the back of the hose end-piece.
•
The oxygen supply must be regulated using a flow meter connected to the source gas outlet.
•
The oxygen supply must be shut off when ventilation is interrupted. Before disconnecting the oxygen hose,
allow the ventilator to continue for a few cycles without oxygen to flush the patient circuit of excess oxygen.
Caution
•
The Puritan Bennett 540™ requires special precautions for electromagnetic compatibility and should be
installed and started according to the recommendations found in Appendix
A, “Specifications.”
In particular, the use of nearby mobile and portable communications equipment using radio frequencies, such
as mobile telephones or other systems exceeding the levels set in the IEC 60601-1-2 standard, may affect its
operation;refer to section A.9, “Manufacturer’s Declaration” in the Clinician’s Manual.
•
The use of any accessory other than those specified, with the exception of the power supplies or cables sold
by Puritan Bennett, may lead to an increase in electromagnetic emissions or a decrease in the equipment
protection against electromagnetic emissions. If the ventilator is used adjacent to such accessories or stacked
with such devices, the ventilator’s performance should be monitored to verify normal operation.
Table 1-1. Ventilator Symbols
Symbols Descriptions
It is essential to read, understand, and follow these instructions before using the Puritan Bennett 540™
Ventilator (ISO 7000-0434A).
This symbol appears on the ventilator’s back panel, and internal battery; see Table 1-2 , item 11.
Type BF applied part (IEC 60417-5333).
A regulatory standard classification for protection against electrical shock for the part of the device that
contacts the patient.
This symbol appears on the ventilator’s back panel; see Table 1-2 , item 6.
Direct current, DC (IEC 60417-5031).
This symbol appears on the ventilator’s back panel; see Figure 1-4 , item 10. Figure 4-5 on page 4-5
Alternating current, AC (IEC 60417-5032).
This symbol appears on the ventilator’s back panel and keyboard; see Figure 1-4 , item 9, and
Figure 2-3 on page 2-5, item 10.
Internal Battery.
This symbol appears on the ventilator’s keyboard; see Figure 2-3 on page 2-5, item 10.
Insulation class II equipment (IEC 60417-5172).
A regulatory standard classification for protection against electric shock. Class II equipment relies on
double insulation rather than protective earthing.
This symbol appears on the ventilator’s back panel; see
Table 1-2 , item 6.