17
CHANGING THE CATALYST AND CONDITIONER
The sachet of Catalyst and the sachet of Conditioner which are housed beneath the bottom shelf of the
incubator will require replacing at a period in excess of one year. If for any reason the sachet of catalyst
gets wet, the contents can be dried out by heating to a temperature of 160
°
C for a period of two hours.
The sachet of conditioner can, if necessary, be dried at room temperature. The chemicals can then be
returned to their respective containers for further use.
When replacing the sachets, ensure that the sachets of Atmospheric Conditioner are at the REAR of the
cabinet so that the gas passes over them first. (See sketch below)
There is also a sachet of catalyst housed in the roof of the lock. This sachet can be both inserted and
removed by bending it slightly and sliding it in or out of the holder.
CHANGING THE FLUORESCENT LIGHTING TUBE
Switch off the power to the light on the Control Panel and remove the three screws from the top and the
two plastic screws from the front of the Light Shade. The tube can now be removed from its Holding Clips,
the end caps disconnected and the new tube fitted.
CLEANING
The inside of the cabinet can be swabbed out with a weak solution of general laboratory detergent and
warm water, and dried with a soft cloth. In the event of a culture spillage, a 5% Hypochlorite solution
should be applied to the area and left for half an hour. It should then be wiped and swabbed with a 1%
solution of Sodium Thiosulphate. Remove the catalysts and conditioners from the unit while the
Hypochlorite solution is being used.
