Bio-Rad Econo Gradient Pump Kits - Manual (Page 16)

4.2 TUBING INSTALLATION
1. Referring to Figure 4-2, pull the platen cam lever away from the
pump head to unlock the platen and slide the platen away from
the pump head frame assembly, exposing the rollers.
2. Slip a lock-ring onto one end of the tubing. See below for the size
and color of each lock-ring. Insert a barbed female luer fitting into
the same end until the tubing reaches the flange of the fitting.
Clamp the luer-fitting into place by sliding the lock ring along the
tubing over the barbed fitting (see Figure 4-3). Repeat on the
other end of tubing.
Note: Use of lock-rings is required only when operating at
pressures above 10 psi.
Tubing ID Lock-Ring Color
0.51 mm (.02”)* None Required
0.8 mm (1/32”) Red
1.6 mm (1/16”) Orange
3.2 mm (1/8”) Yellow
*
The 0.51 mm ID tubing is placed inside the 3.2 mm ID tubing, thus no lock-
rings are required for the smaller tubing.
Figure 4-3. Attachment of tubing fittings.
Tubing Selection
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