IKA RV 8 Operating Instructions Manual

Also see for RV 8: Manual Operating instructions

24 25Useful informationDistillation is a thermal separating process for liquid compoundsbased on substance-specific, pressure-dependent boiling pointsthrough evaporation and subsequent condensation.The boiling point temperature decreases with decreasing externalpressure which means that work is usually done under reduced pres-sure. In this way the heating bath can be maintained at a constanttemperature (e.g. 60 °C). Using the vacuum, the boiling point is setwith a steam temperature of approx. 40 °C. The cooling water forthe condensation condenser should not be warmer than 20 °C (60-40-20 rule).A chemical resistant membrane pump with a vacuum controllershould be used to create the vacuum. The pump is protected fromsolvent residue by the addition of a Woulff bottle and/or a vacuumseparator.Working with a jet pump to create a vacuum can only be recom-mended to a limited extent as the solvents may contaminate the en-vironment when using these systems.Speed, temperature, flask size and system pressure all affect theevaporator air capacity.The optimum capacity of the flow-through condenser is approx.60%.This corresponds to condensation on approx. 2/3 of the coolingcoil. With larger capacities there is the risk that the uncondensedsolvent vapor will be extracted.The device is equipped with a Lift safetyunit.If the power cuts out, the evaporationflask is automatically lifted out of theheating bath by an integrated gas spring.“CAUTION! The safety lift must bechecked daily before use. See safetynotes / safety lift ! “The glass apparatus can be evacuatedafter power outage!When using other types of condensers such as dry ice or intensivecondensers as well as when using return distillation distributorswith slip-on condensers, it may be necessary to reduce the massof the media to compensate for the mass of this additional glass-ware. Thus, prior to distillation, check whether the lift goes upwithout power when laden with the glass and distillation material.The device is designed for operation with a cooling water supplysystem (e.g. laboratory thermostat), but can also be run off a wa-ter supply line. Please refer to the Technical Data for informationon cooling water pressure, temperature constancy, and flow rate.InstallationDrive RV 81.) Mount the base to the lift. (Fig. 7)• Apply Cylindrical M6x25 (F) (4x) and Serrated washer M6 (G) (4x)to mount base (H) with Lift Unit (I) after you unpack the package.(Fig. 7)G HIFFig. 72.) Remove transportation lock (Fig. 8)• Hold the lift with yourhand on the heightposition and remove thethumb screw (J) by turningcounterclockwise on theback of the appliance.Take care! DANGER!Once the transportationlock has been removed, thelift moves fast to its upperend position. The distance isapprox.120 mm.JFig. 8CAUTIONCAUTION5.) Insert the bottle and attach the supplied hoseconnectors to the bottle. (Fig. 11)6.) Adjust the angle of the rotation head. (Fig. 12)• Remove the clamping device for the angle setting of therotation drive on the right side of the lift by rotating the knobcounterclockwise.7.) Set the drive at an angle of approx. 30°. (Fig. 13)• Then, secure the rotary drive against rotation by tightening theadjustable knob clockwise.Fig.11Fig.1230°Fig.133.) Fix the Desktop switching. (Fig. 9)• Attach the switching adapter (K) on the rear side. Secure it withthe Velcro, by contracting both tabs on the switching adapter.The Velcro must not be below the switching adapter.• Connect the Low-voltage connector (M) to the connectionsocket (N). (Fig. 9)• Plug the power cord (L) in the switching adapter and connect itto the power source.• Observe the valid supply voltage.4.) Fix the Holding bracket (Fig.10)Fig.10Fig. 9LNMK