Thermo Scientific BF51841C User manual

ii Heratherm Thermo Scientific
© 2011 Thermo Fisher Scientific Inc. All rights reserved.
These operating instructions are protected by copyright. Rights resulting thereof, particularly reprint, pho-
tomechanical or digital postprocessing or reproduction, even in part, are only allowed with the written con-
sent of Thermo Electron LED GmbH.
This regulation does not apply to reproductions for in-plant use.
The contents of this operating instructions manual may change at any time and without any prior notice.
Concerning translations into foreign languages, the German version of these operating instructions is
binding.
Trademarks
Lindberg/Blue M is a brand owned by Thermo Fisher Scientific Inc.
All other trademarks mentioned in the operating instructions are the exclusive property of the respective
manufacturers.
Thermo Electron LED GmbH
Robert-Bosch-Straße 1
D - 63505 Langenselbold
Germany
Thermo Electron LED GmbH is an affiliate to:
Thermo Fisher Scientific Inc.
81 Wyman Street
Waltham, MA 02454
USA
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.

Thermo Scientific i
C
Chapter 1 Safety Notes
Basic Operating Precautions.............................................................................................1-1
Explanation of Safety Information and Symbols................................................................1-2
Additional Symbols for Safety Information.........................................................................1-3
Safety Consideration. ........................................................................................................ 1-3
Warranty............................................................................................................................ 1-4
Material Safety Data Sheet................................................................................................1-5
Product Safety Information..............................................................................................1-10
Standards and Directives................................................................................................. 1-11
Chapter 2 Introduction
Feature and Benefits ......................................................................................................... 2-1
Specifications..................................................................................................................... 2-2
Chapter 3 Unpacking
Unpacking.......................................................................................................................... 3-1
Chapter 4 Installation
Location............................................................................................................................. 4-1
Wiring................................................................................................................................. 4-1
Gas Inlet Tube................................................................................................................... 4-2
Important Guidelines for Ashing Applications....................................................................4-3
Hearth Plate Information....................................................................................................4-4
Shelf Installations in the Box Furnaces....................................................................................... 4-5
Chapter 5 Operation
Initial Start-up..................................................................................................................... 5-1
Idling Period....................................................................................................................... 5-1
Vent ................................................................................................................................... 5-1
Atmosphere Port................................................................................................................5-2
Option B (Excess Temperature Controller)........................................................................5-2
Chapter 6 Operation - UT150 Controller
Normal Controller Operation..............................................................................................6-2
Setting the Temperature.................................................................................................... 6-4
Setting the Over Temperature Protection (OTP) Temperature..........................................6-4
Changing between Celsius and Fahrenheit.......................................................................6-4
Setting the Ramp to Setpoint Rate....................................................................................6-5
Auto Tuning the Controller.................................................................................................6-6
Corrosion of Temperature Overshoot................................................................................6-7
Table of Contents

Table of Contents
ii Thermo Scientific
Chapter 7 Excess Temperature Option
Control Display. ................................................................................................................. 7-1
Excess Temperature Option Features...............................................................................7-1
Exceeded Temperature Duration Timer......................................................................7-1
Peak Exceeded Temperature......................................................................................7-1
Operating Parameters. ...................................................................................................... 7-1
Excess Temperature Setpoint.....................................................................................7-2
Hysteresis.................................................................................................................... 7-2
Excess Temperature Controller Operation........................................................................7-2
Chapter 8 Communication Option
Cable Installation.............................................................................................................. 8-1
UT150 Communications Setup Parameters...................................................................... 8-1
Software Installation. .........................................................................................................8-2
Communications Test........................................................................................................ 8-3
Troubleshooting.................................................................................................................8-3
Decimal Point Adjustment..................................................................................................8-4
Addresses for Multiple Controllers.....................................................................................8-4
Chapter 9 Maintenance
General Maintenance. ....................................................................................................... 9-1
Heating Elements. ............................................................................................................. 9-2
Heating Unit Replacement................................................................................................. 9-2
Thermocouple (T/C) Replacement. ................................................................................... 9-3
Solid State Relay (SSR) Replacement..............................................................................9-5
Door Insulation Replacemen. ............................................................................................9-5
Right Hand Door Conversion.............................................................................................9-7
Overtemperature Alarm Protection.................................................................................... 9-7
Chapter 10 Troubleshooting ........................................................................................................... 10-1
Chapter 11 Replacement Parts. ...................................................................................................... 11-1
Chapter 12 Error Codes................................................................................................................... 12-1
Chapter 13 WEEE Compliance........................................................................................................ 13-1
Chapter 14 Spare Parts and Accessories......................................................................................14-1
Chapter 15 Device Log..................................................................................................................... 15-1
Chapter 16 Contact .......................................................................................................................... 16-1

Thermo Scientific i
L
Figure 1 BF51841 Laboratory Box Furnace................................................................................2-1
Figure 2 Thermocouple ...............................................................................................................4-2
Figure 3 Gas Inlet Tube Assembly..............................................................................................4-3
Figure 4 Hearth Plate Ripped......................................................................................................4-4
Figure 5 BF51731 and BF51732 Chamber Showing Shelf Groove.............................................4-4
Figure 6 BF51841 and BF51842 Chamber Showing Shelf Groove.............................................4-5
Figure 7 UT150 Control Panel.....................................................................................................6-1
Figure 8 Heating Unit Replacement ............................................................................................9-4
Figure 9 Thermocouple ...............................................................................................................9-5
Figure 10 Door Insulation .............................................................................................................9-6
Figure 11 Door Insulation Replacement........................................................................................9-7
Figure 12 Door Hinge (Sheet 1/2) .................................................................................................9-8
Figure 12 Door Hinge (Sheet 2/2) .................................................................................................9-9
Figure 13 Wiring Diagram..............................................................................................................11-3
List of Figures

List of Figures
ii Thermo Scientific

Thermo Scientific 1-1
1
Safety Notes
Basic Operating Precautions
These operating instructions describe 1200 °C Laboratory Box Furnaces.
1200 °CLaboratory Box Furnaces have been manufactured to the latest state of
the art and have been tested thoroughly for flawless functioning prior to shipping.
However, the Laboratory Box may present potential hazards, particularly if it is
operated by inadequately trained personnel or if it is not used in accordance with
the intended purpose. Therefore, the following must be observed for the sake of
accident prevention:
• 1200 °C Laboratory Box Furnaces must be operated by adequately trained and
authorized professional personnel.
• 1200 °C Laboratory Box Furnaces must not be operated unless these
operating instructions have been fully read and understood.
• The present operating instructions, applicable safety data sheets, plant
hygiene guidelines and the corresponding technical rules issued by the
operator shall be used to create written procedures targeted at personnel
working with the subject matter device, detailing:
• The decontamination measures to be employed for the Laboratory Box and
the accessories used with it,
• The safety precautions to be taken when processing specific agents,
• The measures to be taken in case of accidents.
• Repair work on the Laboratory Box must be carried out only by trained and
authorized expert personnel.
• The contents of these operating instructions are subject to change at any time
without further notice.
• Concerning translations into foreign languages, the English version of these
operating instructions is binding.
• Keep these operating instructions close to the Box Furnace so that safety
instructions and important information are always accessible.
• Should you encounter problems that are not detailed adequately in these
operating instructions, please contact Thermo Fisher Scientific immediately for
your own safety.

Safety Notes
Explanation of Safety Information and Symbols
1-2 Thermo Scientific
Explanation of Safety Information and Symbols
Safety Notes and Symbols Used Throughout These Operating
Instructions
Additional Symbols for Safety Information
Indicates a hazardous situation which, if not avoided, will result
in death or serious injuries.
Indicates a hazardous situation which, if not avoided, could
result in death or serious injuries.
Indicates a situation which, if not avoided, could result in
damage to equipment or property.
Is used for useful hints and information regarding the application.
Wear safety gloves!
Wear safety goggles!
Harmful liquids!
Electrical shock!
Hot surfaces!

Safety Notes
Safety Considerations
Thermo Scientific 1-3
Safety Considerations
Fire hazard!
Explosion hazard!
Suffocation hazard!
Biological hazard!
Contamination hazard!
Do not modify or use equipment in a manner other than expressly
Intended. Modification of equipment other than that for which it is
explicitly designed could cause severe injury or death. Any
customer after-market retrofit violates the warranty of the
equipment.
Do not modify or disconnect any safety features provided.
Disconnection of the unit safety features could allow the unit to
become overheated and start on fire, causing personal injury or
death, product and property damage.
Do not use components or materials not specifically designed for
this equipment. Failure to comply with this precaution could result
in damage to equipment used or the furnace and may create an
overheat situation. Also, do not use anything other than OEM
exact replacement equipment and parts. Not using OEM
replacement parts could cause faulty. Instrumentation readings,
inoperable equipment, or temperature overshoot. Both situations
may cause personal Injury or death, product, and property
damage.
Before using, user shall determine the suitability and integrity of
the product for the intended use and that the unit has not been
altered in any way. Misapplication may compromise the safety of
the end user or the life of the product.

Safety Notes
Warranty
1-4 Thermo Scientific
Warranty
Thermo Fisher Scientific warrants the operational safety and functions of the
Laboratory Box Furnaces only under the condition that:
• The Laboratory Box is operated and serviced exclusively in accordance with its
intended purpose and as described in these operating instructions,
• The Laboratory Box is not modified,
• Only original spare parts and accessories that have been approved by Thermo
Scientific are used (third-party spares without Thermo Scientific approval void
the limited warranty),
• Inspections and maintenance are performed at the specified intervals,
• An operation verification test is performed after each repair activity.
The warranty is valid from the date of delivery of the Laboratory Box to the
customer.
This product contains refractory ceramic fiber which can result in
the following:
• May be irritating to skin, eyes, and respiratory tract.
• May be harmful if inhaled.
• May contain or form cristobalite (crystalline silica) with use at
high temperature (above 871°C) which can cause severe
respiratory disease.
Before maintaining this equipment, read the applicable MSDS
(Material Safety Data Sheets) in the safety notes of this manual.

Safety Notes
Material Safety Data Sheet
Thermo Scientific 1-5
Material Safety Data Sheet
I. PRODUCT IDENTIFICATION
II. PRODUCT HAZARD SUMMARY
III. HEALTH HAZARDS A. SIGNS/SYMPTOMS OF OVEREXPOSURE
Trade Name: MOLDATHERM
Generic Name:
Refractory Ceramic Fiber Insulation Manufacturer: Rex Rota Corpo- ration
Address: P.O. Box 980
Fowlerville. MI
48836
Chemical Name: N/A (Mixture)
CAS#: None Assigned Telephone: [phone]
Health
May be harmful if inhaled.
May be irritating to the skin, eyes and respiratory tract.
possible cancer hazard based on test with laboratory animals.
Flammability: Non - Combustible
Reactivity: Stable
Ingestion: May cause gastrointestinal disturbances such as irritation, nausea, vomiting
and diarrhea.
Eyes: Slightly to moderately irritating. Abrasive action may cause damage to the
outer surface· of the eye.
Skin: Slight to moderate irritation or rash. Irritation is due to mechanical reaction
to sharp, broken ends of fibers.
Inhalation: May cause irritation or soreness of throat and nose. Extreme expo sure may
produce coughing, congestion, and even difficulty breathing. Pre-existing
medical conditions may be aggravated by exposure: e.g. bronchitis, emphy-
sema, and asthma.

Safety Notes
Material Safety Data Sheet
1-6 Thermo Scientific
IV. HEALTH HAZARDS B. FIRST AID
V. HEALTH HAZARDS C. SUMMARY/RISKS
At this time there are no known published reports that demonstrate an associated
association between RCF exposure and respiratory disease. The following is a
review of the result date:
1. There is no evidence of any fibrotic lung disease (interstitial fibrosis)
whatsoever on x-ray.
2. There is no evidence of elevated lung disease among those employees
exposed to RCF that had never smoked.
3. A statistical “trend” was observed in the exposed population between the
duration of exposure to RCF and a decrease in some measures of pulmonary
function. These observations are clinically insignificant. In other words, if these
observations were made on an individual employee, the results would be
interpreted as being within the normal range.
4. Pleural plaques (thickening along the chest wall) have been observed in a
small number of employees who had a long duration of employment. There are
several occupational and non-occupational causes for pleural plaque. It should
be noted that plaques are not associated with any measurable effect on lung
function.
A number of studies on health effects of inhalation exposure of rats and hamsters,
have been completed. Rats exposed to doses corresponding to 200 f/cc
developed progressive lung damage (interstitial fibrosis) and cancers of the lung
and of the pleura (lining of the chest wall and lung). Hamsters similarly exposed
developed interstitial fibrosis and pleural cancer, but no lung cancer.
In a multiple dose study in rats, statistically significant increases in lung tumors
were observed following exposure to the highest doses; there were no excess
lung cancers at lower doses.
Ingestion: Do not induce vomiting. Get medical attention if irritation persists.
Skin: Wash affected areas gently with soap and water. Do not rub or scratch
exposed skin. Using a skin cream or lotion may be helpful. Get medical
attention if irritation persists.
Eyes: Flush immediately with large amounts of water. Do not rub eyes. Get medical
attention if irritation persists.
Inhalation: Remove affected person from source of exposure. Drink water to clear throat,
and blow nose to expel mist/dust. Avoid tobacco smoke. Get medical
attention if irritation persists.

Safety Notes
Material Safety Data Sheet
Thermo Scientific 1-7
As a result, the International Agency for Research on Cancer (IARC) has
classified RCF, along with fibrous glasswool and mineral wool, as possible human
carcinognes (Group 2B) based on sufficient evidence of carcinogenicity in animals
but insufficient data in humans. IARC has also classified respirable crystalline
silica, which may be found in after- service RCF exposed to temperatures above
1800°F, as a known carcinogen to humans (Group 1). See Section IX for
additional information concerning after service RCF.
VI. PERSONAL PROTECTION
Eye Protection: Safety glasses with side shields or goggles are recommended, partic-
ularly when working overhead. do not wear contact lenses.
Skin Protection: Wear gloves, hats, or loose fitting full body clothing as required to
prevent skin irritation. Wash exposed areas with soap and warm
water after handling. Wash work clothes separately from other cloth-
ing. Rinse washing machine thoroughly after use.
Respiratory Protection: Use mechanical ventilation with proper dust collection equipment to
keep the dust level below the exposure limits listed in the Ingredi-
ents/Health Hazard Information section.
Use NIOSH or MSHA approved equipment when airborne exposure
limits are exceeded. Acceptable respirators recommended for various
repairable fiber concentrations are:
Concentration Respirator Type
.5-5 f/cc Half-face, tight fitting respirator with HEPA filter cartridges (Example:
3M 6340)
5-25 f/cc Tight fitting, full face air purifying respirator with HEPA filter cartridges
or powered air-purifying respirator (PAPR) equipped with HEPA filter
cartridges (Example: 3M 7800 with 7255 filters)
25-50 f/cc Full face, supplied air respirator operated in positive pressure mode
(Example: 3M 7800 with W9435 hose and W3195 regulator)
f/cc = Fibers per cubic centimeter
HEPA = High-efficiency particulate air filter.

Safety Notes
Material Safety Data Sheet
1-8 Thermo Scientific
VII. PHYSICAL CHARACTERISTICS
VIII. FIRE AND EXPLOSION DATA
IX. REACTIVITY DATA
X. ENVIRONMENTAL INFORMATION
Appearance/Odor: White board or
shape/No odor Specific Gravity: -(H2O-l.): .2 -.6
Boiling Point: N/A
Evaporation Rate (Butyl
- Acetate=l.): N/A Melting Point: N/A
Solubility in Water: Negligible Vapor Pressure: N/A
Vapor Density (Air=1): N/A Percent Volatile: N/A
Flash Point: Non-flammable
Auto-ignition Temp: None
Flammability Limits in Air
(% By Vol.) N/A Upper: Lower: N/A N/A
Usual Fire or Explosion
Hazards: None
Special Fire Fighting Pro-
cedures Use extinguishing method suitable for type of surrounding fire.
Stability/Incompatibility: Stable under normal condition of use. Incompatible with strong acids
and alkalies.
Hazardous Decomposi-
tion and By-products: None
Spill or Release to the
Environment: Vacuum clean dust where possible. Use a dust suppressant if sweep- ing is necessary. Personal safety and exposure recommendations
described elsewhere in this data sheet apply to exposure during
clean-up of spilled material.
Waste Disposal: Wastes generated during use or demolition are not hazardous
wastes as defined by 40 CFR 261. Transportation, storage, and dis-
posal of this product must comply with Federal, State and Local regu-
lations.

Safety Notes
Material Safety Data Sheet
Thermo Scientific 1-9
XI. SPECIAL PRECAUTIONS / SUPPLEMENTAL INFORMATION
Product which has been in service at elevated temperatures (greater than 1800°F)
may undergo partial conversion to cristobalite, a form of crystalline silica. Chronic
exposure to respirable crystalline silica may lead to delayed lung injury (silicosis).
The amount of cristobalite present will depend on the temperature and length in
service.
IARC has concluded that crystalline silica from occupational sources inhaled in the
form of quartz or cristobalite is carcinogenic to humans (Group 1) [IARC
Monograph Vol. 68, June 1997]. The OSHA permissible exposure limit (PEL) and
the 1988-89 ACGIH threshold limit value (TLV) for cristobalite is 0.05 mg/if
(respirable dust). Particular care should be taken when working with “used”
material to minimize generation of dust. When removing and handling product
used in high temperature applications, special caution should be taken.to avoid
unnecessary cutting and tearing of the used material to minimize generation of
airborne dust. Workers should. Use respiratory protection. Use NIOSH or MSHA
approved equipment when airborne exposure limits may be exceeded, especially
in confined areas with inadequate ventilation.
Insulation surfaces should be lightly sprayed with H2O before removal to suppress
airborne dust. As water evaporates during removal, additional water should be
sprayed on surfaces as needed. Only enough water should be sprayed to
suppress dust so that water does not run on to the fiber in the work area.
After RCF removal is completed, dust-suppressing cleaning methods, such as wet
sweeping or wet vacuuming, should be used to clean the work area. If dry
vaccuming is used, the vacuum must be equipped with a HEPA filter. Air blowing
or dry sweeping should never be used. Dust-suppressing components can be
used to clean up light dust.
XII. INGREDIENTS / HEALTH HAZARD INFORMATION
Toxic Substances Con-
trol Act (TSCA): All substances in this product are listed, as required, on the TSCA inventory. These products contain RCF which may be subject to Sec-
tion 12 (b) Export Notification Requirements.
Toxic Substances Con-
trol Act (TSCA): All substances in this product are listed, as required, on the TSCA · inventory. These products contain RCF which may be subject to Sec-
tion 12 (b) Export Notification Requirements.
SARA Title III: This product does not contain any substances reportable under Sec-
tions 302, 304, 313. Sections 311/312 apply.
COMPONENT LIMITS CAS NO. %EXPOSURE LIMITS
RefractoryCeramicFiber 142844-00-6 40-95 .5 Fiber/cc Guideline-RRC*
5 mg/M3-Nuisance Respir – OSHA
10 mg/M3- Nuisance Total – ACGIH*
AmorphousSilica 7631-86-9 0-60 6 mg/M' (total) PEL

Safety Notes
Product Safety Information
1-10 Thermo Scientific
*Pending the results of long-term health effects studies, airborne exposures
should be controlled at or below the recommended industry exposure guidelines
listed above.
**Identity, CAS Numbers and/or percent composition are trade secrets.
As of the date of preparation of this document, the foregoing information is
believed to be accurate and is provided in good faith to comply with applicable
Federal and State laws. However, no warranty or representation, expressed or
implied, is made as to the accuracy or completeness of the foregoing data.
Product Safety Information
Refractory Ceramic Fibre Product
This product contains refractory ceramic fibers which have been identified by the
International Agency for Research on Cancer (IARC) as possibly carcinogenic to
humans.
Avoid breathing fiber particulates and dust.
RISKS:
• Possible cancer hazard by inhalation
• May cause temporary irritation to eyes, skin, and respiratory tract
PRECAUTIONARY MEASURES:
• Minimize airborne fibers with engineering controls.
• Use NIOSH/MSHA approved respiratory as required (see MSDS).
• Wear long sleeved, loose-fitting clothing, eye protection, and gloves
Inert Fillers and Organic Binders** N/A
Remaining components not
determined hazardous
and/or hazardous compo-
nents present at less than
1.0% (0.1% for carcino-
gens)
N/A Trace N/A
This product contains refractory ceramic fibers which have been
identified by the International Agency for Research on Cancer
(IARC) as possibly carcinogenic to humans.

Safety Notes
Standards and Directives
Thermo Scientific 1-11
FIRST AID MEASURES:
Eyes: Flush with water.
Skin: Wash with soap and warm water.
Ingestion: Do not induce vomiting. Get medical attention If gastrointestinal
symptoms develop.
Inhalation: Remove to fresh clean air.
If any of the above irritations persists, seek medical attention.
CONSULT MSDS FOR ADDITIONAL PRODUCT INFORMATION AND
HANDLING INSTRUCTIONS.
REX ROTD CORPORATION
P.O. BOX 980
FOWLERVILlE, MI 48836
517/223-3787
Standards and Directives
The Laboratory Box Furnaces complies with the following standards and
guidelines:
• Current/Approved Agency standards (Underwriters Laboratory/CSA/CE).

Safety Notes
Standards and Directives
1-12 Thermo Scientific

Thermo Scientific 2-1
2
Introduction
Figure 1. BF51841 Laboratory Box Furnace
The Thermo Fisher Scientific BF51841 is a reliable, energy efficient 1200 °C
laboratory box furnace. The heating elements and low thermal mass Moldatherm®
insulation provide fast duty cycles, energy conservation, and efficient
programming. Refer to “Table 1” for specifications.
Features and Benefits
• Controlled heat-up rate eliminates thermal shock to materials.
• Quick heat-up and cool-down rates.
• Left swing door (reversible)
• Safety interlock switch automatically interrupts power to heating elements
when door is opened. This feature protects heating elements and eliminates
operator's exposure to electrical shock.
• Energy efficient Moldatherm insulation suitable for high interior-exterior
temperature differential. The unit is rated for a maximum operating
temperature of 1200 °C.
• Patented LGO (light gauge overbend) heating elements transfer radiant heat
energy to the work chamber and load efficiently and economically.
• Replaceable hearth plates and shelves.
• Digital control with adjustable parameters.
• Main power ON/OFF switch and power indicator on control panel.

Introduction
Specification
2-2 Thermo Scientific
• Double wall construction.
• Front control panel is recessed at the top. This feature provides easy viewing
of the control LED and protection for the control instrumentation.
Specification
Table 1. BF51841 Laboratory Box Furnaces
The BF51841BC model has adjustable over-temperature control.
Model Dimension
WXF-BXH in.(cm) Maximum Operating
Temp
Watts Thermoco
uple Voltage Integral Control Shipping Weight
lbs (kg)
Cham
ber Exterior Shipping (Approxim
ate)
BF51841C
BF51841BC 15x15 x15
(38.1x
38.1x3
8.1)
29x28x33
(73.6x71.1
x83.8)
30x34x31
(6835x78.
6x71)
1200 °C 5800 Type PL II 208/240
VAC
50/60 Hz
single
phase
Single
setpoint 280 (127)