Replace the Four-Channel Gradient Valve (4CGV)
Tools required
Qty. | p/n | Description | |
|---|---|---|---|
1 |  | 0100-1710 | Mounting Tool for Tubing Connections |
1 | | 8710-0899 | Screwdriver Pozidrive Shaft |
Parts required
Qty. | p/n | Description | |
|---|---|---|---|
1 | | G7111-67701 | Four-Channel Gradient Valve (4CGV) |
Prerequisites
|
NOTE
The 4CGV is used in the following modules and requires firmware ≥ B.07.33:
- G7104A: DEBAX04563 or greater
- G7104A (MS-Ready): DEBA301668 or greater
- G7131A: All
NOTE
The 4CGV is for the following modules ≥ B.07.33:
- G7104C: DEAGZ03223 or greater
- G7104C (MS-Ready): DEAG200931 or greater
- G7131C: All
Use the mounting tool for removing tubing connections between the degassing unit and the 4CGV.
-
Remove the inlet weaver, see Replace the Inlet Weaver.
Remove the cover from the 4CGV.
Disconnect the 4CGV cable (1), unscrew the two screws (2) and remove the valve (3).
Place the new 4CGV into position.
NOTE
Make sure that the THIS SIDE UP label arrow is pointing upward towards the top of the module.
Tighten the two screws (1) and connect the cable to its connector (2).
Install the 4CGV cover.
-
Install the inlet weaver, see Replace the Inlet Weaver.
Reconnect the tube from the inlet valve to the middle position of the 4CGV (1), and reconnect solvent tubes for channels A-D from the 4CGV to the degasser outlets (2).
base-id: 4133778955
id: 18014402643260939