Bio-Rad BioLogic Sample Loading Loops User Manual

Page 9

Make Connections

1. To make a collet/nut connection at the end of the DynaLoop, slide a collet/nut fitting

and ferrule over the end of the cut tubing. Make sure the tapered end of the ferrule
faces the tubing end. The blunt end of the ferrule must face the collet/nut (Figure 4).

2. Push the tubing all the way into the connector until the tube bottoms in the fitting.

3. While pressing the tubing securely into the fitting, slide the ferrule and collet/nut toward

the DynaLoop and finger-tighten the collet/nut. Do not overtighten.

Fig. 4. DynaLoop plumbing connections.

Connection to AVR7-3 Injection Valve

There are two stages to installing the DynaLoop sample loop to a or AVR7-3 injection

valve:

•

Attaching BioLogic fittings to the DynaLoop

•

Purging the DynaLoop of air

Connect Tubing

1. To attach the 1/8” 1/4-28 fittings to the loop for connection to the injection valve, slide a

1/4-28 nut onto the sample end tubing of the DynaLoop. Slide a yellow ferrule over the
end of the tubing. The blunt end of the ferrule must face away from the nut (Figure 5).
Repeat this procedure for the buffer end tubing.

2. Remove the sample loop currently connected to the injection valve.

Fig. 5. Injection valve plumbing connections.

1/8" Tubing

Cut the

tubing

1/4-28 Nut

Yellow ferrule

Ferrule

Collet/nut

Buffer end

Sample end