Datex-Ohmeda 7100, Technical Reference Manual

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7 Repair Procedures
1006-0836-000 02/03 7-19
7.4 Monitoring Interface Assembly (MIA) in an Aestiva machine
Note: This section applies only to an Aestiva machine . For an Aespire machine , refer
to the Aespire machine Technical Reference Manual for details about the Ventilator
Monitoring Board.
The MIA is located in the breathing system, below the front and rear subfloors. It is held
in place by the bulkhead. If you are not familiar with this area, refer to the service manual
for the Aestiva anesthesia machine.
To replace the
Monitoring Interface
Assembly (MIA)
1. Remove the following items to gain access to the subfloor area:
• Flow sensors, breathing circuit, bag arm, open control panel, bellows
assembly, main manifold, and the exhalation valve.
2. Remove the front and rear subfloors.
3. Remove the bulkhead cover.
4. Disconnect the pressure gauge tubing; disconnect the control panel harness;
remove the control panel.
5. Disconnect the four inline tubing connectors ( A ) between the MIA and the bulkhead
connector.
6. Disconnect the cables at the rear of the MIA. Slide the cable retainer ( B ) on each
connector toward the outside of the breathing system (away from each other.
7. Remove the two bulkhead mounting screw from below the breathing system
chassis.
8. Raise the bulkhead to release the MIA. The MIA is secured with Velcro on the
bottom.
9. Move the MIA backwards for easier access to the front cable connectors.
10. Disconnect the cables at the front of the MIA.
• Cable from O
2
sensor (release latch at bottom of connector).
• If present, cable from ACGO switch (release latch at top of connector)
11. Reassemble in reverse order.
w w w w
Caution Position each component carefully so that you do not pinch any of the tubing or
wiring.
B
B
MIA A