5
Introduction
Intended Use
The Type F62700 furnace is a general laboratory and
heat treating furnace. For optimum element life, it is sug-
gested that this furnace be used for applications requir-
ing temperatures from 400°F (204°C) to 1600°F (871°C)
for continuous use, or temperatures from 1600°F (871°C)
to 1832°F (1000°C) for intermittent use. Continuous use
is operating the furnace for more than 3 hours and inter-
mittent use is operating the furnace for less than 3 hours.
The unit consists of: 1) muffle heating chamber, 2) a mi-
croprocessor control and 3) a door interlock relay for
user safety.
General Usage
Do not use this product for anything other than its in-
tended usage.
Principles of Operation
The furnace chamber incorporates a heating element
that is embedded into the side walls and top and back of
heating chamber. The ceramic fiber oval muffle with four
heating surfaces creates even heat distribution within the
chamber. The temperature is controlled by a micropro-
cessor control with a type K Chromel/Alumel Thermo-
couple. A fan is provided in the furnace to provide forced
air cooling for the temperature controller. A door safety
switch removes power to the heating elements whenever
the furnace door is opened.
Single Set Point Temperature Controller
One of the furnace’s controllers is a single set point con-
trol, with programmable over temperature protection
which enables the user to bring the furnace up to a pre-
set point and hold the temperature.
Introduction
