Carbolite TLD Series - Manual (Page 2)

TLD
2
MF18 – 3.06
1.0 S YMBOLS & W ARNINGS
1.1 Switches and Lights
1.2 Warning Symbols
1.3 Introduction
Reproducible annealing of thermoluminescent dosimeters is essential to maintain constant
sensitivity and low background readings.
Use of the Carbolite TLD Annealing Oven ensures that the best results are consistently obtained.
The fan assisted air recirculating system eliminates the temperature gradients encountered in
simple gravity convection ovens. The risk of errors arising due to non-reproducible annealing is
greatly reduced by the automatic program controller.
The Carbolite annealing oven is supplied as a complete self contained unit. The front opening side
hinged door gives access to the work chamber which is fitted with two shelves. The air
recirculating fan draws air from the back of the chamber and passes it over the heating elements.
The reheated air is then returned to the chamber on all four sides. The temperature programmer is
conveniently located in the base of the equipment below the oven chamber.
Instrument switch: when the instrument switch is operated the temperature
control circuit is energised.
DANGER of electrical shock– read any warning printed by this symbol.
DANGER – hot surface. Read any warning printed by this symbol.
WARNING: all surfaces of an oven may be hot.
DANGER – read any warning printed by this symbol.