The control unit supplies power to the 'Peltier' thermoelectric elements in the base of the tissue bath. These act as energy transfer units so that heat is drawn off, through the heat exchanger and removed by tap water flow which runs to waste. The unit uses P.I.D. (proportional integral derivative) temperature control to take the bath temperature to within 0.5° C at the point of measurement. The temperature feedback thermistor is located in the bath floor and software calculates an offset automatically.
Traditionally once removed from the animal, tissue is immediately cooled to close to +4° C to lower the oxygen demand and prevent anoxia. This has the added advantage with delicate tissues of increasing the stiffness of the tissue allowing for a more robust slice. This can be done with passive cooling by applying ice to the outer icebath (included as standard) or use of the 7610A Tissue Cooler Bath.
The advantage of the 7610A is constant tight control of the bath temperature over long periods without the requirement to refresh the ice or disturb the tissue sample.
Tissue Bath with 7000smz-2 Vibrotome
** Actual temperatures achievable will be dependent upon the solutions used and local temperature conditions. For optimal cooling; inlet water temperature should be below 25° C and flow rate should be greater than 400ml/min
