SIGNA MR355 / SIGNA MR360
Service Manual
5856356-3EN Revision 5.0
Basic Service Documentation. Copyright General Electric Company.
Object ID: 00000018WIA308E8F20GYZ
Topic ID: id_13106887 Version: 2.0
Date: Jul 19, 2019 11:01:13 AM

Respiratory Compensation Checks

Prerequisites

Table 1. Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
2	Not Applicable	25 minutes	Not Applicable

Table 2. Tools and test equipment
Item	Quantity	Effectivity	Part number	Manufacturer
Respiratory Bellows	1	-		-

Table 3. Safety

Notice

Never vent the bellows. Always connect the bellows to the PAC Assembly before stretching it. Failure to connect bellows to PAC Assembly first causes inaccurate waveforms and, therefore, inaccurate results.

Procedure

At Operator Workspace, select Service Desktop and click on 'Gating' tab.
Select 'Respiratory' check box.

Figure 1. Gating Control
The respiratory waveforms window appears on the LCD Panel Display.
Take the respiratory bellows in both hands and gently pull on either end to duplicate the motion of typical regular breathing.
Verify that the LED of Magnet Center Display move. If the bellows and respiratory compensation software is working properly, the LED's should follow the actions of the bellows.

Figure 2. Magnet Center Display
Verify that the waveform appears on the window of LCD Panel Display. If the bellows and respiratory compensation software is working properly, the waveform should follow the actions of the bellows.

Figure 3. Respiratory Waveform
If the LED or waveform does not work properly, proceed troubleshoot the bellows (for tears or holes), connections and then the PAC assembly is self for problems.

Finalization

Restore the system to patient scanning condition.