Bio-Rad Model EP-1 Econo Pump - Manual (Page 12)

When using tubing other than precut tubing from Bio-Rad, the tubing
must be cut to the following lengths to accommodate prestretch:
Tubing Length
Tygon, PharMed 179 mm +/- 1.5 (7.04" +/- 0.05)
Silicone 171 mm +/- 1.5 (6.75" +/- 0.05)
Install tubing onto the pump head as described in Section 5.2.
Warning: If using tubing other than the type supplied by Bio-Rad, make
sure the wall thickness is not greater than 1.0 mm. Using tubing with a
greater wall thickness can damage the pump and void your warranty.
5.2 Tubing Installation
1. Referring to Figure 5.1, 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.
Fig. 5.1. Tubing installation.
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-fit-
ting into place by sliding the lock-ring along the tubing over the barbed
fitting (see Figure 5.2). Repeat on the other end of tubing.
Note: Use of lock-rings is required only when operating at pressures
above 10 psi.
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