Theory of Operation
10
1.6.2 Precautions
Caution: Refer to the maintenance intervals in the Preventive Maintenance section for
guidance on which steps are preformed when.
Caution: Use surgical gloves whenever touching or disassembling valves or other
internal components of the Patient Module.
Caution: If possible, always connect the output of the APL valve to the anesthetic
removal line, usually installed in the operation theater.
Caution: Carry out the daily checks specified on the checklist and do not operate the
system in case of a fault until the fault has been repaired.
Caution: The patient should be visually monitored by qualified personnel. In certain
situations circumstances may occur which may not necessarily trigger an
alarm.
Caution: Always set the alarm limits so that the alarm is triggered before a hazardous
situation occurs. Incorrectly set alarm limits may result in operation personnel
not being aware of changes in the patient’s condition.
Caution: This machine must only be operated by trained, skilled medical staff.
Caution: Before starting the machine, the operating personnel must be familiar with
operating instructions and must have been instructed by a qualified instructor.
Caution: If the machine does not function as described, the machine must be examined
and possibly repaired by qualified service personnel, before being returned to
use.
Caution: Handle the machine with care to prevent damage or functional faults.
Caution: Ensure that the gas supply of the machine always complies with the technical
specification.
Caution: Before clinical use, the machine must be correctly calibrated and/or the
respective machine tests performed, as described in the operation instructions.
Caution: If the machine should show faults during the initial calibration or testing, the
machine should not be operated until the fault has been repaired by a qualified
service technician.
Caution: After servicing, functional, sensor and system tests must be carried out before
clinical use.
Caution: Only bacteria filters with a low flow resistance must be connected to the patient
module and/or patient connector.
Caution: Failure to connect device to a grounded mains outlet may elevate leakage
current in excess of permissible values.
Caution: During transportation of the patient module, transportation should be applied to
the rear to protect the valve connectors.
Caution: After changing the CO
2
absorbent, carry out a system leak test.
Caution: The spring in the top of the APL valve may not be stressed. After removal, place
to one side, taking care that the spring is not unduly loaded.
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