Cope-LLG Catalogue 2018

822 7. Heating and cooling technology Heating/Heating baths GENERAL CATALOGUE EDITION 20 E & OE. Sand baths For continuous operation. Electrical sand baths with thermostatic temperature control and separate power controller for performance adjustment to the heating requirements. Anodised aluminium alloy hotplate. Excellent uniform temperature distribution over the entire heating surface. Asbestos free. The sand bath frame is tightly screwed onto the hotplate so that the sand is in direct contact with the hotplate. Useful depth 50 mm. Stainless steel controller housing, with painted central section. Height-adjustable feet. Connection cable approximately 1.7m. With earthed plug for 230V supplies up to 3300W. A 400V 3-phase model is also available. 1 Gestigkeit Type Dimensions (W x D x H) Rating Temp. range Supply requirements Weight PK Cat. No. mm W max. °C V kg ST 72 ST 82 ST 92-2 ST 92-3 360 x 360 x 220 514 x 364 x 220 592 x 442 x 220 592 x 442 x 220 2200 2850 4000 4000 50 to 300 50 to 300 50 to 300 50 to 300 230 230 230 400 (3-ph.) 14.0 21.0 28.0 28.0 1 1 1 1 9.645 814 9.645 815 9.645 816 9.645 820 1 Heating bath liquid, BUDDE Use: BUDDE heating bath liquid can be used continuously as a heating medium up to approx. 170 °C. Higher temperatures (below flash point) are possible, but will result in rapid darkening. The low pour point allows the bath liquid also to be used as a cooling medium. Mixtures with 10% to 30% water achieve best results. The crucial advantages of BUDDE heating bath liquid compared to the oils or other organic liquid mainly used are: - accidental spillage of water into the bath does not lead to dangerous spitting at temperatures over 100 °C, as the water dissolves in the heating bath liquid and subsequently evaporates safely - BUDDE heating bath liquid can easily be rinsed away with water which eases cleaning of laboratory equipment, e.g. distillation flasks, and also bench or floor if the bath liquid is accidentally spilled. - BUDDE heating bath liquid does not foam when mixed with water. Viscosity on addition of water: BUDDE heating bath liquid is quite viscous at ambient or low temperatures, and therefore sometimes difficult to dispense. The addition of 10-20% water reduces the viscosity and enables easier handling. If the mixture is then heated to 100 °C, the water evaporates without boiling. Further heating is only shortly delayed by this. Before next heating, water can be added again. Water solubility: BUDDE heating bath liquid can be mixed with water in any ratio. The hardness of the water has no effect on the bath liquid. 2 Buddeberg Chemical character: Modified polyglycolether Appearance: Clear, colourless or lightly yellowish liquid Storage time: When stored for long periods (over 2 years) the product may become darker. This does not affect the performance of the product. (unlimited at present knowledge when unopened) Density (DIN 51757, ASTM 1298, 23 °C): to 1.17 g/cm³ Flashpoint acc. to DIN EN ISO 2592: > 290 °C Container PK Cat. No. 5 litres 1 9.906 200 2