16CH Mega Switch for 1.5T

Prerequisites

Table 4. Safety

danger

STRONG MAGNETIC FIELD!
FERROUS MATERIALS CAN BECOME DANGEROUS PROJECTILES IN THE PRESENCE OF THE MAGNETIC FIELD PRODUCED BY THE SIGNA MAGNET.
Do not Bring any ferromagnetic tools or equipment into the magnet room.

Notice Image

warning

ELECTROCUTION HAZARD!
DANGEROUS VOLTAGES ARE PRESENT AROUND THE MAGNET SUBSYSTEM WHEN ENERGIZED.
LOCK AND TAG OUT POWER TO THE magnet room BEFORE STARTING WORK.

Procedure

Remove right middle side cover and right side covers.
- Side Middle Cover (Left side Only)
- Side Covers (Left side Only)
Remove Left Side Bracket.

Figure 1.
Disconnect all connectors from Mega Switch.

note:
Handle the Fibre Optic cables with care, they are very fragile.

Figure 2. Mega Switch Cable Removal

caution

Mega Switch contains ferrous materials.
Do not bring it very close to magnet bore during replacement.
If it is very close to the magnet bore, it will be attracted to the bore with great force.

Loosen 4 screws and remove Mega Switch.

Figure 3. Mega Switch Removal
Restore it by the reverse order of the removal.

Finalization

Restore the Power. Refer to System Cabinet PDU Main Breaker LOTO Procedure.
Perform the following Diags and confirm that all of the tests are passed.
Perform System Gain Calibration.
Perform one Body or Head Scan.
Perform SPT Coherent Noise Test .
note:
Perform SPT Coherent Noise Test Only by selecting 'No' for 'Select All Tests?' and 'ON' for 'Coherent Noise'. No need to perform SPT Full test.