Varian UNITY INOVA NMR, Hardware Installation, Page: 28 / 65

4.2 Installing the Solids Relay Driver Board
01-999044-00 C0501 UNITY INOVA Solids Hardware Installation
27
b. If the distance is less than the distance indicated above, determine how much
distance must be added to accommodate the solids cabinet:
c. Place the acquisition console at the correct distance. Disconnect all cables
from the magnet leg and move the cables away from the right side of the
console.
5. Shut down the data system using the steps below:
a. Exit VNMR by entering
svs(file)
, where
file
is the name of the shim
file. Then enter
exit
.
CAUTION:
Shut down the system according to the instructions provided in the
manual User Guide: Solid-State NMR. Failure to shut down the system
properly can corrupt system files.
b. Shut down VNMR and UNIX system according to instructions in the User
Guide: Solid-State NMR.
c. After VNMR and UNIX are shut down, turn off the power switch located at
the rear, center of the acquisition console.
d. Remove the power connector from the rear of the acquisition console.
6. For convenience, remove the back panel of the acquisition console, which covers the
Relay Driver board as shown in
Figure 4 on page 28 . Set the back panel aside until
the modification is complete.
7. Carefully push the solids cabinet up towards the right side of the
UNITY
INOVA console
(looking from the front) so that there is 6 in. (15 cm) between them and both front
panels face the same directions. The minimum distance between the edge of the
solids cabinet and the magnet must be at least 42 in. (107 cm) for 300 MHz magnets
and 48 in. (122 cm) for a 400 MHz or any widebore (89 mm) magnet.
4.2 Installing the Solids Relay Driver Board
This section describes replacing the Relay Driver board (00-992962-00) with the Solids
Relay Driver board (00-992962-01). The solids cabinet is connected to the
UNITY
INOVA
console through the Solids Relay Driver board, which is located in the rear of the
UNITY
INOVA console, behind the rf control card cage. The illustrations in Figure 4 shows the
location of the Relay Driver board as well as the front and rear layouts of the two
UNITY
INOVA console cabinets.
Before you begin, shut down VNMR and power down the system as described in the
manual User Guide: Solid-State NMR.
1. If not already done, remove the appropriate panel at the rear of the
UNITY
INOVA
console to gain access to the Relay Driver board, see Figure 4 .
2. Disconnect the ribbon cable at J7001. Disconnect the power cable at J7004.
Disconnect the tune relay cable at J7301
3. Remove the Relay Driver board (00-992962-00) by removing the four screws that
hold the board in place.
–
=
distance from above
table actual distance additional distance
needed