1.0 Safety
Spillage - If the cutting lubricant/preserving liquid, e.g. physiological saline, is spilt over the
instrument it is important for electrical safety reasons to ensure that the instrument remains
safe to use. To avoid the possibility of electrical shock if a spillage occurs, the unit should be
switched off at the mains electrical outlet and disconnected before touching the instrument.
The instrument should be inspected and tested if necessary by a suitably qualified technician
before it is put into further use.
This instrument must not be operated unless it is adequately earthed (grounded).
7600 controller with alternative standard and sterilisable cooled tissue baths
All electrical instruments and equipment should be periodically tested to ensure they remain
safe to use. In some countries this may be a statutory requirement. Your local Health and
Safety Executive (or equivalent) will be able to advise on this matter.
1.1 Overview
The 7600 Tissue Bath Cooler Unit is intended for use with the Campden Instruments Range
of vibrating microtomes. Unfixed brain slices sectioned at 4
o
C give better tissue
preservation and are viable for longer in-vitro recordings. Additionally, some enzyme
histochemical techniques give better staining results when sectioned at low temperatures.
The 7600 series coolers use 'Peltier' thermoelectric elements and are available in two
versions: 7600 (standard tissue bath) and 7600S (sterilisable/autoclavable tissue bath). The
equipment comprises of a mains operated control unit, tissue bath and specimen holder.
The control unit houses a power supply and temperature control circuitry. The standard tissue
bath assembly has a tissue bath with a stainless steel bottom plate, permanently attached to
the cooling elements. The autoclavable specimen bath is manufactured from a special grade
of Nickel-Aluminum Bronze, a material with excellent corrosion resistance properties.
3
This is removable from the cooling elements, which cannot be autoclaved. The cooling
