Bio-Rad ChromLab™ Software - Manual (Page 113)

Plumbing NGC Systems
Installation Guide | 111
To plumb the buffer blending valve
 Connect the inlet tubing to ports Q1–Q4 on the buffer blending valve.
Note: The buffer inlet tubing is color-coded to identify the different buffer
solutions.
The color scheme for the tubing and ports is defined as follows:
Green Q4 High salt buffer
Yellow Q3 Water
Blue Q2 Buffer base
Red Q1 Buffer acid
To plumb the pH valve
1. Connect the pump head wash priming tubing to the Cal In port on the pH valve.
2. Connect waste tubing to the Cal Out port on the pH valve.
Tubing color Port Solution