BioSpec User Documentation - Exchanging Gradient Inserts

User Documentation BioSpec/PharmaScan with AVANCE NEO, V004

Exchanging Gradient Inserts

		CAUTION
	There is a risk of personal injury and/or property damage when lifting, carrying or installing the gradient insert. Due to its weight (≥ 20 kg) the gradient insert has to be handled by at least 2 persons to avoid personal injury or damages. • Ensure compliance with worker protection regulatory limits. • Potentially, hire professional staff trained in handling heavy loads.

In order to install a gradient insert in the MR instrument, proceed as follows:

1.: Switch the MR instrument in the operation mode System OFF.

2.: Remove all RF coils and animal beds from the system gradient.

3.: Move the insert from the service end of the magnet to the iso-center of magnet.

⇨: Information about the distances are labeled on the type plates of the magnet and gradient insert.

4.: Adjust the rotation of the gradient insert in such a manner, that the thick mark is oriented along the physical +Y axis of the magnet coordinate system (12 o’clock position). Refer to section Physical Coordinate System.

5.: Fix the gradient insert with the non-magnetic tools. Therefore, carefully turn the eccentric screws until the gradient insert is well fixed. Do not apply brute force!

⇨: The tool is in the scope of delivery.

6.: Disconnect the gradient current connector (Schaltbau) of the system gradient set inside the CCM and connect the equivalent connector of the new insert.

7.: Disconnect the shim current connector (Hypertac) of the main shim set inside the CCM and connect the equivalent connector of the insert.

8.: Feed the water cooling tubes of the insert through the RF shield on the side of the CCM.

9.: Remove the U-shaped bypass tube and connect the cooling tube of the gradient insert at the water distribution panel

10.: Switch the MR instrument in the operation mode System ON.

	NOTICE
	Each kind of mechanical force can cause property damage to the gradient shim system and its connectors. • Avoid each kind of mechanical force such as bumps or shakes when connecting the gradients and shims. • Do not twist any housing, sealing or quick-lock connectors. • Always use the protective cover of the shim connector, when the insert or the main shim set is not connected.