Specifications

4
Introduction
Intended Use
The Type F62700 furnace is a general laboratory and heat treating furnace. For optimum element life, it is
suggested that this furnace be used for applications requiring 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 intermittent use is operating the
furnace for less than 3 hours.
The unit consists of: 1) muffle heating chamber, 2) a single set point P.I.D. microprocessor control and 3) a
door interlock relay for user safety.
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 single set point microprocessor control
with a type K Chromel/Alumel Thermocouple. 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
The furnace controller is a single set point control which enables the user to bring the furnace up to a pre-
set point and hold the temperature.
Figure 1
Controller