When in the program RUN mode, the programmable controller serves to provide a
programmed temperature profile as described earlier.When in the single setpoint
automatic mode, the unit serves as an automatic temperature controller.
2
Introduction
Intended Use
10
Large Tabletop Muffle
Thermo Scientific
Intended Use
The Type 30400 furnaces are general purpose laboratory and heat treating furnaces. For optimum
element life, we recommend observing these temperature ranges: from 400°F (204°C) to 1800°F
(982°C) for continuous use, or temperatures from 1800°F (982°C) to 2000°F (1093°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. a heating chamber;
2. an automatic proportioning digital set, digital read control with over-temperature protection and
3. a door interlock relay for user safety.
The Type 30400 Programmable furnace is designed to control a programmed temperature profile. The
profile is in the format of ramps and dwell segments. The first ramp, RAMP 1, starts at the initial
measured furnace temperature. This ramp is positive going at a programmed rate until the
programmed level is reached. The setpoint will stay at this level for a period determined by the setting
of DWELL 1. Additional positive or negative going ramps are now initiated starting at the level at the
end of DWELL 1. When the second ramp reaches the second programmed level, the setpoint stays at
that level for the duration of the segment. Depending upon the model ordered, additional ramp and
dwell segments may be added. See specific model number in proceeding chart for total number of
program segments.
4. The Type 30400 Automatic furnace is designed as a single set point controller which reaches and
maintains one temperature value.
General Usage
Do not use this product for anything other than its intended usage.
MODEL NUMBER
DIGITAL
COMMUM.
TOTAL NUMBER OF
PROGRAMMABLE
SEGMENTS
NUMBER OF STORED
PROGRAMS
F30420C-33-80
NO
8
F30420-33-60-80
NO
8
F30420C-60-80
NO
8
F30420C-80
NO
8
F30428C-60-80
NO
8
F30428C-80
NO
8
Summary of Contents for F30400
Page 6: ...Contents 4 Large Tabletop Muffle Thermo Scientific...
Page 10: ...1 Safety Information Warning 8 Large Tabletop Muffle Thermo Scientific...
Page 14: ...2 Introduction Principles of Operation 12 Large Tabletop Muffle Thermo Scientific...
Page 18: ...4 Unpacking 16 Large Tabletop Muffle Thermo Scientific...
Page 28: ...7 Single Setpoint Models w OTP Tuning 26 Large Tabletop Muffle Thermo Scientific...
Page 50: ...11 Furnace Loading 48 Large Tabletop Muffle Thermo Scientific...
Page 62: ...15 Replacement Parts List 60 Large Tabletop Muffle Thermo Scientific...
Page 64: ...16 Ordering Procedures 62 Large Tabletop Muffle Thermo Scientific...
