D-Series Syringe Pumps - Isco

D Series Syringe Pumps: Models 65DM, 100DM, 100DX, 260D
Section 2A 65DM, 100DM, 100DX, and 260D Liquid System Connections & Accessories
2A.4.2 Cooling/Heating Jacket An optional cylinder temperature jacket (68-1247-047) is
available for use in maintaining cylinder temperatures (–30 to
100°C) by circulating liquids, such as water or water/ethylene
glycol solution through the 1 4" upper and lower hose connectors.
To install the
cooling/heating jacket
(Figure 2A-9)
Removing the pump cylinder
The jacket is very useful for SFC applications where cylinder
cooling facilitates pump filling with fluids, such as liquid CO 2 .
The jacket can also be used with a circulating temperature-controlled
bath to keep the fluid inside the pump at a constant temperature.
This may be necessary when operating at very low flow
rates (below 100 µl/min), where temperature fluctuation can
cause flow variations.
1. Empty the cylinder.
Note
Be sure the piston is left fully extended.
2. Turn the pump’s mains power switch OFF or disconnect
the power cord.
3. Remove the pump front cover by loosening the four cover
screws (two, located on each side of the pump).
4. Loosen the cylinder lock screw (a 1 4"-20 set screw) in the
front side of the cylinder housing.
5. Disconnect the pump pressure transducer cable from the
pump and remove the inlet and outlet tubing.
6. Unscrew the cylinder from the cylinder housing.
Note
It may be necessary to use a tubing strap wrench or Teledyne
Isco wrenches package P/N 68-1247-067 to unscrew the cylinder
without marring its outer surface.
7. Lift the cylinder up and off the piston and push rod.
2A-11