10.2 Maintenance Schedule
Caution
⚫
This schedule is based on a maximum total annual usage time of 2000 hours per year. If the
actual annual usage exceeds 2000 hours, maintenance must be increased accordingly.
⚫
Local policies or regulations may require that maintenance be performed more frequently than
stated here.
Minimum Frequency
Maintenance
Daily
• Clean external surfaces.
• Perform a flow sensor and pressure sensor calibration.
Monthly
•Perform 21% and 100% O
2
cell calibrations.
• Drain the vaporizers.
•Clear water build up inside the water traps of CO
2
module.
Yearly
•Replace O-ring on the patient circuit port and the vaporizer manifold.
• Perform CO
2
module Calibration.
• Perform AG module Calibration.
Every two years
•Replace every filter in the gas inlet.
• Replace with new built-in battery
During of Cleaning and
setup
•Inspect parts for damage. Replace/repair as necessary.
As necessary
•Install new cylinder gaskets on cylinder yokes.
•Empty the water collection cup If there is water build up in it.
•Empty and clean the overflow trap on the optional suction regulator.
•Replace the soda lime in the canister if soda lime color change is
detected.
•Replace the O
2
sensor if a great deviation of the measured value by the
O
2
sensor occurs and the problem persists after multiple calibrations.
•Replace the flow sensor if the seal for the flow sensor is damaged, the
membrane inside the flow sensor is cracked or distorted.
•Replace the transfer tube if damaged.
10.3 Pressure Sensor Zeroing
Caution
⚫
Do not perform calibration while the unit is connected to a patient.
⚫
During calibration, do not operate the flow meter or ventilator systems. Do not move or
compress the breathing tubes.
Procedure
1. Stop manual or mechanical ventilation.
2. Open the breathing tube patient connection to air. Check that the bellows falls to the bottom.
3. Turn the flow meter to minimum.