Thermo Scientific F30400 User manual

Thermo Scientific 
Thermolyne Furnace 
Large Tabletop Muffle/ 
Atmosphere Controlled Ashing 
Model Type: F30400
Installation and Operation Manual
LT1262X1 Revision G October 2018

©2018 Thermo Fisher Scientific Inc. All rights reserved.
Thermo Fisher Scientific Inc. provides this document to its customers with a product purchase to use in the
product operation. This document is copyright protected and any reproduction of the whole or any part of this
document is strictly prohibited, except with the written authorization of Thermo Fisher Scientific Inc.
The contents of this document are subject to change without notice. All technical information in this
document is for reference purposes only. System configurations and specifications in this document supersede
all previous information received by the purchaser.
Thermo Fisher Scientific Inc. makes no representations that this document is complete, accurate or error-
free and assumes no responsibility and will not be liable for any errors, omissions, damage or loss that
might result from any use of this document, even if the information in the document is followed
properly.
This document is not part of any sales contract between Thermo Fisher Scientific Inc. and a purchaser. This
document shall in no way govern or modify any Terms and Conditions of Sale, which Terms and Conditions of
Sale shall govern all conflicting information between the two documents.
Release history:
For Research Use Only. Not for use in diagnostic procedures.

Thermo Scientific Large Tabletop Muffle 1
C
Chapter 1 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Alert Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Important Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Chapter 2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
General Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Chapter 3 General Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Chapter 4 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Chapter 5 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Site Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Electrical Conditions in the EU. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Chapter 6 Operation, All Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Cycle Light shown on the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Door Safety Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Chapter 7 Single Setpoint Models w/OTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Eurotherm 3216 Controller Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Buttons and Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
To change the Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
To View the Display Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Controller Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Sensor Break Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Over – Temperature Protection (OTP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Contents

Contents
2Large Tabletop Muffle Thermo Scientific
Chapter 8 Single Ramp & Dwell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Program Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
SetPoint Rate Limit Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Running the Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Holding the Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Stopping the Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Clearing the Flashing End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Verifying a Running Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Chapter 9 8 Segment & 4x16 Segment Programmable Models w/OTP . . . . . . . . . . 31
Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
To Change the Setpoint. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
To View Display Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
To View the % Output Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Buttons and Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Controller Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Sensor Break Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Over-Temperature Protection (OTP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
To Operate the Controller as a Single Setpoint Controller. . . . . . . . . . . . . . . . . 36
Programming the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Creating a New Program or Editing an Existing Program 
(4x16 Segment Programmable Models Only) . . . . . . . . . . . . . . . . . . . . . . 37
Hb: Holdback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
rmP.U: Setting Ramp Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
dwL.U: Setting Dwell Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
CYC.n: Setting the Number of Cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Setting the Segment Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Setting the Target Setpoint 
(4x16 Segment Programmable Models Only) . . . . . . . . . . . . . . . . . . . . . . 41
Running a Program (8 Segment Programmable Models) . . . . . . . . . . . . . . . . . . 41
Running a Program (4x16 Segment Programmable Models) . . . . . . . . . . . . . . . 41
Holding a Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Cancelling a Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Tuning your Furnace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Tuning Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Gain Scheduling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
G.SP: Gain Scheduling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Autotuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Adaptive Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Chapter 10 Installation and Operation of Air Control . . . . . . . . . . . . . . . . . . . . . . . . . 45
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Chapter 11 Furnace Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Chapter 12 Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
General Cleaning Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Contents
Thermo Scientific Large Tabletop Muffle 3
Chapter 13 Maintenance and Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
To Replace a Heating Element . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
To Replace a Platinel II Thermocouple . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
To Replace Solid State Relay: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
To Replace Door Switch (Microswitch). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
To Realign Door Strike . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
To Replace Control Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Chapter 14 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Chapter 15 Replacement Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Single Setpoint Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
8 Segment Programmable Models with OTP. . . . . . . . . . . . . . . . . . . . . . . . . 58
4X16 Segment Programmable Models with OTP . . . . . . . . . . . . . . . . . . . . . 59
Chapter 16 Ordering Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Chapter 17 Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Single setpoint control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Segment programmable control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
4X16 segment programmable control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Contents
4Large Tabletop Muffle Thermo Scientific

Thermo Scientific Large Tabletop Muffle 5
1
Safety Information
Contents
“Alert Signals” on page 6•
•“Important Information” on page 6
•“Warnings” on page 6
•“Warning” on page 7

1 Safety Information
Alert Signals
6Large Tabletop Muffle Thermo Scientific
Alert Signals
Warnings alert you to a possibility of personal injury.
Cautions alert you to a possibility of damage to the equipment.
Notes alert you to pertinent facts and conditions.
Hot surfaces alert you to a possibility of personal injury if you come in contact with a
surface during use or for a period of time after use.
Important Information
Your Thermo Scientific Thermolyne F30400 Model Furnace has been designed with function,
reliability and safety in mind. It is your responsibility to install it in conformance with local electrical
codes. For safe operation, please pay attention to the alert signals throughout the manual.
This manual contains important operating and safety information.
You must carefully read and understand the contents of this manual prior to the use of this furnace. 
If the equipment is used in a manner not specified by the manufacturer, protection provided by the
equipment may be impaired.
Warnings
To avoid electrical shock, this furnace must:
1. Use a properly grounded electrical outlet of correct voltage and current handling capacity.
2. Be disconnected from the power supply prior to maintenance and servicing.
3. Have the door switch operating properly.
To avoid burns, this furnace must:
Not be touched on the exterior or interior surfaces during use or for a period of time after use.
To avoid personal injury:
1. Do not use in the presence of flammable or combustible materials; fire or explosion may result.
This device contains components which may ignite such material.
2. Refer servicing to qualified personnel.

1 Safety Information
Warning
Thermo Scientific Large Tabletop Muffle 7
Warning
Please note the following WARNINGS:
This warning is presented for compliance with California Proposition 65 and other regulatory agencies
and only applies to the insulation in this product. This product contains refractory ceramic, refractory
ceramic fiber or fiberglass insulation, which can produce respirable dust or fibers during disassembly.
Dust or fibers can cause irritation and can aggravate pre-existing respiratory diseases. Refractory
ceramic and refractory ceramic fibers (after reaching 1000°C) contain crystalline silica, which can cause
lung damage (silicosis). The International Agency for Research on Cancer (IARC) has classified
refractory ceramic fiber and fiberglass as possibly carcinogenic (Group 2B), and crystalline silica as
carcinogenic to humans (Group 1).
The insulating materials can be located in the door, the hearth collar, in the chamber of the product or
under the hot plate top. Tests performed by the manufacturer indicate that there is no risk of exposure
to dust or respirable fibers resulting from operation of this product under normal conditions. However,
there may be a risk of exposure to respirable dust or fibers when repairing or maintaining the insulating
materials, or when otherwise disturbing them in a manner which causes release of dust or fibers. By
using proper handling procedures and protective equipment you can work safely with these insulating
materials and minimize any exposure. Refer to the appropriate Material Safety Data Sheets (MSDS) for
information regarding proper handling and recommended protective equipment. For additional
MSDS copies, or additional information concerning the handling of refractory ceramic products,
please contact the Customer Service Department at 1-800-438-4851.

1 Safety Information
Warning
8Large Tabletop Muffle Thermo Scientific

Thermo Scientific Large Tabletop Muffle 9
2
Introduction
Contents
“Intended Use” on page 10•
•“General Usage” on page 10
•“Principles of Operation” on page 11

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

2 Introduction
Principles of Operation
Thermo Scientific Large Tabletop Muffle 11
Principles of Operation
Furnace: The furnace chamber is heated by four electric resistance heaters which are embedded in a
refractory material. The chamber is insulated with ceramic fiber insulation. The temperature is
controlled by an automatic proportioning controller using a platinel thermocouple to feed back
information. The control is located under the furnace chamber and is well insulated from the heat
generated in the furnace chamber. The temperature is controlled by one of three types of controllers.
F30430CM YES 64 16 Segment Programs
F30430CM-33 YES 64 16 Segment Programs
F30430CM-33-60 YES 64 16 Segment Programs
F30430CM-60 YES 64 16 Segment Programs
F30438CM YES 64 16 Segment Programs
F30438CM-60 YES 64 16 Segment Programs
F30420C NO 0
F30420C-33 NO 0
F30428C NO 0
MODEL NUMBER DIGITAL
COMMUM.
TOTAL NUMBER OF
PROGRAMMABLE
SEGMENTS
NUMBER OF STORED
PROGRAMS

2 Introduction
Principles of Operation
12 Large Tabletop Muffle Thermo Scientific

Thermo Scientific Large Tabletop Muffle 13
3
General Specification
Models
F30420C, (-33), (-33-60-80),
(-33-80), (-60-80) & (-80)
F30430CM, (-33), (-33-60) &
(-60)
F30428C, (-60-80) & (-80)
F30438CM & (-60)
Overall
Dimensions 
IN. (CM)
Width
Height
Depth
21 1/2 (55)
29 1/2 (75)
25 1/2 (65)
21 1/2 (55)
29 1/2 (75)
25 1/2 (65)
Chamber
Dimensions 
IN. (CM)
Width
Height
Depth
14 (35)
14 (35)
14 5/8 (37)
14 (35)
14 (35)
14 5/8 (37)
Weight Lbs. (KG) 188 (86) 188 (86)
Electrical Ratings
Volts
Amps
Watts
Freq.
Phase
240
22.9
5500
50/60
1
208
26.4
5500
50/60
1
Te m p e r a t u re
Ratings °F (°C)

Cont.

Intermittent
400°F-1800°F*
(204°C)-(982°C)
1800°F-2000°F
(982°C)-(1093°C)
400°F-1800°F*
(204°C)-(982°C)
1800°F-2000°F
(982°C)-(1093°C)
* The maximum continuous temperature for ashing furnaces (-60 models) is 1787°F (975°C).

3 General Specification
Environmental Conditions
14 Large Tabletop Muffle Thermo Scientific
Environmental Conditions
Operating: 17°C to 27°C; 20% to 80% relative humidity, non-condensing. Installation Category II
(overvoltage) in accordance with IEC 664. Pollution degree 2 in accordance with IEC 664.
Altitude Limit: 2,000 meters.
Storage: -25°C to 65°C; 10% to 85% relative humidity.

Thermo Scientific Large Tabletop Muffle 15
4
Unpacking
1. Visually check for any physical damage to the shipping container.
2. Inspect the equipment surfaces that are adjacent to any damaged area.
3. Open the furnace door and remove the packing material from inside the furnace chamber.
4. Vacuum the chamber prior to use to remove the insulation dust due to shipment.
5. Retain the original packaging material if reshipment is foreseen or required.

4 Unpacking
16 Large Tabletop Muffle Thermo Scientific

Thermo Scientific Large Tabletop Muffle 17
5
Installation
Contents
“Site Selection” on page 18•
•“Electrical Connections” on page 18
•“Electrical Conditions in the EU” on page 18

Be sure ambient temperature does not exceed 40°C (104°F). The recommended
ambient temperature is 17°C - 27°C. Ambient above this level may result in damage
to the controller.
Allow at least six inches of space between the furnace, at least 40 inches above the
furnace and any combustible surface. This permits the heat from the furnace case to
escape so as not to create a possible fire hazard.
To avoid electrical shock, this furnace must always use a properly grounded outlet of
correct voltage and current handling capacity.
5 Installation
Site Selection
18 Large Tabletop Muffle Thermo Scientific
Site Selection
Install furnace on a sturdy surface and allow space for ventilation.
Electrical Connections
1. The electrical ratings are located on the specification plate on the back of the furnace. Consult
customer service if your electrical service is different than those listed on the specification plate. Be
sure the front power switch is in the OFF position before connecting the furnace to your electrical
supply.
Electrical Conditions in the EU
Electrical Conditions for operating the furnaces in the EU:
The furnaces are intended for use at a network supply with a maximum system impedance of Zmax=
0.0229 ohm at the point of connection, according to EN 61000-3-11 clause 6.2.2. The user has to
ensure that the device is operated on a network supply that meets these requirements. If necessary, the
system impedance can be confirmed by the energy supplier.