Mopv Pressure Relief Valve Test; Test Setup; Test Procedure - GE Datex-Ohmeda Aisys Carestation Reference Manual

6.4 MOPV pressure relief valve test

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WARNING

6.4.1 Test setup

6.4.2 Test procedure

M1046983 04/08
Objects in the breathing system can stop gas flow to the patient. This
can cause injury or death:
• Do not use a test plug that is small enough to fall into the breathing
system.
• Make sure that there are no test plugs or other objects caught in the
breathing system.
1. Remove the ABS breathing system.
2. Plug the inspiratory flow (drive pressure) port of the exhalation valve with a
stopper.
Plug Inspiratory Flow
(Drive Pressure) Port
To test the pressure relief valve, you must establish a flow (blocked by setup
above) of 30 l/min through the Inspiratory Flow Control valve.
19.Access the Ventilation Schematic (TRM - Section 12.3.3) of the Service
Application.
20.Set Gas Inlet Valve to On.
21.Adjust the Insp Flow Valve counts until the inspiratory flow value on the
schematic reads approximately 30 l/min.
3. Carefully listen for the MOPV relief weight to be relieving and "popping off"
from its seat (a purring sound). This indicates the valve is functioning
correctly.
4. Set the system switch to Standby.
5. Remove the stopper from the inspiratory flow port.
6. Reassemble the system.
7. Perform the Preoperative Checkout Procedure
(refer to the User's Reference manual).
6 Installation and Maintenance
Exhalation valve
6-7