Barnstead F62700 Operation Manual - Introduction

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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