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Type F62700
Furnace
OPERATION MANUAL
AND PARTS LIST
Series 1276
Model No. Voltage Control Display
F62730 220-240V Single Set Point °C
F62730-80 220-240V Programmable °C
F62730-33 220-240V Single Set Point °C
F62730-33-80 220-240V Programmable °C
F62734 100V Single Set Point °C
F62735 120V SIngle Set Point °C
F62735-80 120V Programmable °C
LT1276X1• 9/21/04
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IMPORTANT INFORMATION
This manual contains important operating and safety information. The user must carefully
read and understand the contents of this manual prior to the use of this equipment.
Safety Information.............................................................................................................................................. 4
Alert Signals ................................................................................................................................................4
Warnings ......................................................................................................................................................4
Introduction..........................................................................................................................................................6
Intended Use................................................................................................................................................6
General Usage ............................................................................................................................................6
Principles of Operation ........................................................................................................ ........................6
General Specifications ........................................................................................................................................7
Environmental Conditions ............................................................................................................................8
Declaration of Conformity ............................................................................................................................8
Unpacking ..........................................................................................................................................................9
Installation ........................................................................................................................................................10
Site Selection ............................................................................................................................................10
General Operation ............................................................................................................................................11
General Operation of Furnace....................................................................................................................11
Power Switch ........................................................................................................................................12
Fan ........................................................................................................................................................12
Cycle Indicator ......................................................................................................................................12
Door Safety Switch................................................................................................................................12
Digital Readout......................................................................................................................................12
Single Setpoint Model w/OTP ..........................................................................................................................13
Basic Operation ..........................................................................................................................................13
Button and Indicators .......................................................................................................... ..................13
To View or Change the Setpoint............................................................................................................13
To View the Display Units......................................................................................................................13
To View the % Output Power ................................................................................................................14
Controller Parameters................................................................................................................................14
Alarms ........................................................................................................................................................15
Sensor Break Protection ............................................................................................................................15
Over-Temperature Protection (OTP)..........................................................................................................15
Tuning ........................................................................................................................................................16
Single Ramp & Dwell ........................................................................................................................................17
Functions....................................................................................................................................................17
Program Overview......................................................................................................................................17
Program Setup ..........................................................................................................................................18
Running the Program ................................................................................................................................18
Stopping the Program ................................................................................................................................18
Clearing the Flashing End ..........................................................................................................................18
Verifying a Running Program ....................................................................................................................19
8 Segment Programmable Model w/OTP ........................................................................................................20
Basic Operation ..........................................................................................................................................20
To Change the Setpoint ........................................................................................................................20
To View Display Units............................................................................................................................20
To View % Output Power ......................................................................................................................20
Buttons and Indicators................................................................................................................................21
Controller Parameters................................................................................................................................22
Alarms ........................................................................................................................................................24
Sensor Break Protection ............................................................................................................................24
Over-Temperature Protection (OTP)..........................................................................................................25
To Operate the Controller as a Single Setpoint Controller ........................................................................25
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Table of Contents
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Programming the Controller ......................................................................................................................25
Running a Program (8 Segment Programmable Models)..........................................................................30
Holding a Program ....................................................................................................................................30
Cancelling a Program ................................................................................................................................30
Tuning ........................................................................................................................................................31
Furnace Loading ..............................................................................................................................................34
Preventative Maintenance ................................................................................................................................35
General Cleaning ......................................................................................................................................36
Troubleshooting ................................................................................................................................................37
Maintenance and Servicing ..............................................................................................................................39
Fuse Replacement ....................................................................................................................................40
Thermocouple Replacement (Type K) ......................................................................................................40
Muffle (Heating Element) Replacement ....................................................................................................40
Wiring Diagrams................................................................................................................ ................................42
Replacement Parts.............................................................................................................. ..............................44
Ordering Procedures ........................................................................................................................................45
Material Safety Data Sheet ..............................................................................................................................46
Two-Year Limited Warranty ...................................................................................................... ........................52
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TABLE OF CONTENTS
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4
This manual contains important operating and safety
information. The user must carefully read and understand
the contents of this manual prior to the use of this equipment.
Your Barnstead Thermolyne furnace has been designed
with function, reliability, and safety in mind. It is the
user’s responsibility to install it in conformance with local
codes. For safe operation, please pay attention to the
alert signals throughout the manual.
Warnings
To avoid electrical shock, this furnace must:
1. Use a properly grounded electrical outlet of correct voltage and current handling capacity.
2. Disconnect from the power supply prior to maintenance and servicing.
3. Have the door switch operating properly.
To avoid burns, this furnace must:
Not to 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 materials.
2. Refer servicing to qualified personnel.
Safety Information
Hot Surface
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.
Caution
Cautions alert you to a possibility of
damage to the equipment.
Warning
Warnings alert you to a possibility of
personal injury.
Note
Notes alert you to pertinent facts and
conditions.
Alert Signals
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5
Please note the following WARNINGS:
WARNING
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 preexisting 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 Barnstead
International at 1-800-553-0039.
SAFETY I
NFORMATION
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6
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 microprocessor control and 3) a door interlock relay for user
safety.
General Usage
Do not use this product for anything other than its intended 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 microprocessor control with a type K Chromel/Alumel Thermocouple. Afan 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.
Introduction
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MODEL NUMBER F62730, F62730-33 F62734 F62735,
F62730-80 F62730-33-80 F62735-80
OVERALL WIDTH 23-1/2 23-1/2 23-1/2 23-1/2
(59.7 CM) (59.7 CM) (59.7 CM) (59.7 CM)
DIMENSIONS HEIGHT 16-1/4 16-1/4 16-1/4 16-1/4
(41.3 CM) (41.3 CM) (41.3 CM) (41.3 CM)
IN. (CM) DEPTH 18-3/4 18-3/4 18-3/4 18-3/4
(47.6 CM) (47.6 CM) (47.6 CM) (47.6 CM)
CHAMBER WIDTH 11-1/2 11-1/2 11-1/2 11-1/2
(29.2 CM) (29.2 CM) (29.2 CM) (29.2 CM)
DIMENSIONS HEIGHT 7-1/2 7-1/2 7-1/2 7-1/2
(19.1 CM) (19.1 CM) 19.1 CM) 19.1 CM)
IN. (CM.) DEPTH 11-1/2 11-1/2 11-1/2 11-1/2
(29.2 CM) (29.2 CM) (29.2 CM) (29.2 CM)
WEIGHT LBS. 55 LBS 55 LBS 55 LBS 55 LBS
(KG) (25 KG) (25 KG) (25 KG) (25 KG)
ELECTRICAL VOLTS 220-240 220-240 100 120
RATINGS AMPS 6.2 6.2 14.8 12.4
WATTS 1488 1488 1488 1488
FREQ. 50/60 50/60 50/60 50/60
PHASE 1111
MAXIMUM INTERMITTENT 1832°F 1832°F 1832°F 1832°F
OPERATING (1000°C) (1000°C) (1000°C) (1000°C)
TEMP.
CONTINUOUS 1600°F 1600°F 1600°F 1600°F
(871°C) (871°C) (871°C) (871°C)
General Specifications
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Environmental Conditions
Operating: 17°C - 27°C; 20% to 80% relative humidity, non-condensing. Installation Category II
(over-voltage) in accordance with IEC 664. Pollution Degree 2 in accordance with IEC 664.
Altitude limit: 2,000 meters.
Storage: -25°C to 65°C; 20% to 80% relative humidity.
Declaration of Conformity
(for -33 models only)
Barnstead International hereby declares under its sole responsibility that this product conforms with the technical requirements of the following standards:
EMC: EN 6100-3-2 Limits for harmonic current emissions
EN 6100-3-3 Limits for voltage fluctuations and flicker
EN 61326-1 Electrical equipment for measurement, control, and
laboratory use; Part I: General Requirements
Safety: EN 61010-1 Safety requirements for electrical equipment for
measurement, control, and laboratory use;
Part I: General Requirements
EN 61010-2-010 Part II: Particular requirements for laboratory equipment for
the heating of materials
per the provisions of the Electromagnetic Compatibility Directive 89/336/EEC, as amended by 92/31/EEC and
93/68/EEC, and per the provisions of the Low Voltage Directive 73/23/EEC, as amended by 93/68/EEC.
The authorized representative located within the European Community is:
Electrothermal Engineering Ltd.
419 Sutton Road
Southend On Sea
Essex SS2 5PH
United Kingdom
Copies of the Declaration of Conformity are available upon request.
GENERAL S
PECIFICATIONS
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9
Visually check for any physical damage to the shipping
container. Inspect the equipment surfaces that are adjacent to any damaged area. Open the furnace door and remove packing material from inside the furnace chamber.
Vacuum the chamber prior to use to remove the insulation
dust due to shipping.
The furnace is supplied with two hearth plates. Place the
hearth plates on the bottom of the chamber.
Install ceramic sleeve into top vent hole on furnace case.
Retain the original packaging material if re-shipment is
foreseen or required.
Unpacking
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Site Selection
Install furnace on a sturdy surface and allow adequate
space for ventilation.
The electrical specifications are located on the specification plate on the back of the furnace. Consult Barnstead
International if your electrical service is different than
those listed on the specification plate. Prior to connecting
your Type F62700 furnace to your electrical supply, be
sure the front power switch is in the “OFF” position.
Installation
Caution
Be sure ambient temperature does not
exceed 104°F (40°C). Ambients
above this level may result in damage
to the controller. Allow at least six
inches of space between the furnace
and any combustible surface. This
permits the heat from the surface case
to escape so as not to create a possible fire hazard.
Warning
Do not use in the presence of flammable or combustible chemicals. Fire or
explosion may result; this device contains components which may ignite
such materials.
Warning
To avoid burns, this furnace must not
be touched on the exterior or interior
furnace surfaces during use or for a
period of time after use.
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General Operation of Furnace
To avoid electrical shock, this furnace must:
1. Use a properly grounded electrical outlet of correct voltage and current handling capacity.
2. Disconnect from the power supply
prior to maintenance and servicing.
3. Have the door switch operating properly.
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.
3. Please note the following WARNINGS:
WARNING
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
General Operation
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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 Barnstead International at 1-800-553-0039.
Power Switch
Switch power switch to the “I” position. The switch will illuminate when power is on.
Fan
The fan located in the rear of the control section will run
continuously as long as power is supplied to the furnace,
even when the furnace power switch is OFF. This serves
to remove residual heat after the furnace is turned OFF
so the heat does not cause damage to sensitive electronic components.
Cycle Indicator
The amber cycle light will illuminate whenever the power
is being applied to the elements.
Door Safety Switch
The door safety switch removes power from the heating
elements when the door is opened. Open and close door
a few times, note that the amber cycle light will go out
while the door is open. If this condition is not true, consult the troubleshooting section before proceeding.
Digital Readout
The Digital Readout continuously displays the chamber
temperature.
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GENERAL O
PERATION
Caution
If the power supply must be disconnected from the furnace at any time,
be sure the chamber temperature is
500°C or less before doing so.
Caution
To avoid electrical shock, this furnace
must have the door switch operating
properly.
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The single setpoint model w/OTP furnace controller is a
single setpoint controller which provides a single digital
display to indicate the current chamber temperature or
setpoint temperature. This temperature controller features
sensor break protection, self-tuning capability and over
temperature protection (OTP) with an additional OTP
relay device.
Basic Operation
When the controller is turned ON it will perform a short
self-test and then display the measured value (process
value) in the HOME DISPLAY.
Buttons and Indicators
OP1 (Output 1): Illuminates when the logic output is ON.
OP2 (Output 2): Illuminates when the relay output is ON
(will go out during an alarm situation).
PAGE button: Allows you to select a new list of parame-
ters.
SCROLL button: Allows you to select a parameter within
a list of parameters.
DOWN button: Allows you to decrease a value.
UP button: Allows you to increase a value.
To View or Change the Setpoint
To view the setpoint, press and release the UP or DOWN
buttons. If you want to change the setpoint, continue
pressing until the desired setpoint value is displayed and
then release the button. Afew seconds after the button is
released, the controller will accept the new value and
revert to the HOME DISPLAY.
To View the Display Units
From the HOME DISPLAY press the SCROLL button. The
display will show the temperature units in °C/F/K and then
return to the HOME DISPLAY. (Call Customer Service if
you require a different temperature unit.)
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Single Setpoint Model w/OTP
Single Setpoint Models
Note
If at any time you want to return to the
HOME DISPLAY, simultaneously press
PAGE and SCROLL buttons.
Output 1
Manual
UP ARROW
Button
Temperature
Display
Display
Window
DOWN ARROW
Button
PAGE
Button
SCROLL
Button
Output 2
MAN
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To View the % Output Power
From the HOME DISPLAY press the SCROLL button
twice. Press and release the UP or DOWN button to view
the % output power. This value is a read-only value and
cannot be changed.
Controller Parameters
Home display
°C: Temperature units in Celsius. Temperature units can
not be changed without entering the configuration.
Contact Customer Service if a different temperature unit
is required.
OP: % output power demand.
IdHi: Deviation high alarm.
Al List
IdHi: Deviation high alarm.
Atun List
tunE: One-shot autotune enable.
Pid List
Pb: Proportional band (in display units).
ti: Integral time in seconds.
td: Derivative time in seconds.
ACCS List Code: Access code (Code needed to enter or
change the other configuration parameters which are not
normally accessible.) Not accessible.
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SINGLE S
ETPOINT MODEL W
/OTP
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Alarms
The controller will flash an alarm message in the home
display if an alarm condition is detected.
2FSH: Measured value full scale high alarm.
IdHi: Measured value deviation high alarm.
S.br: Sensor break: check that sensor is connected
correctly.
L.br: Loop break: check that the heating circuits are
working properly.
Ld.F: Heater Circuit fault: indication of either an open or
short solid state relay, a blown fuse, missing supply or
open circuit heater.
Sensor Break Protection
This controller provides sensor break protection in the
event the thermocouple opens. If an open thermocouple
condition occurs, the digital display will blink “S.br” and
the power to the heating element will be shut OFF (Cycle
light will extinguish).
Over-Temperature Protection
(OTP)
The OTP will be in effect during any alarm condition when
the temperature of the furnace has deviated beyond the
limit. The “Deviation High” alarm is the only alarm value
which can be changed. To change it, press the SCROLL
button until “IdHi” appears on the display. Press the UP or
DOWN button to select the OTP value you desire. We
recommend a value of 20° above your working temperature to provide protection for your workload.
In addition to over-temperature protection, units containing a single setpoint controller w/OTP feature a mechanical OTP relay device which disconnects power from the
elements in an alarm condition.
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SINGLE S
ETPOINT MODEL W
/OTP
Note
The following alarm messages are factory default settings and may vary if
you have changed the configuration of
your controller:
IDHi = 50°C
2FSH = 1025°C
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Tuning
This controller incorporates a self-tuning feature which
determines the optimum control parameters for the best
temperature accuracy with your load and setpoint. Use
this feature the first time you use your furnace and each
time you change either your setpoint or the type of load
you are heating. Barnstead|Thermolyne recommends you
use this feature to provide the best temperature accuracy
the controller can attain. To use the tuning feature:
1. Adjust the setpoint to your desired value.
2. Press the PAGE button until display reads,
“Atun.”
3. Press the SCROLL button. Display will read,
“tunE.”
4. Press the UP or DOWN button to select, “on.”
5. Simultaneously press the PAGE and SCROLL
buttons to return to the HOME DISPLAY. The
display will alternately flash between “tunE” and
the HOME DISPLAY while tuning is in progress.
6. The controller will then turn the heating on and
off to induce an oscillation. When the measured
value reaches the required setpoint the first
cycle will end.
7. Tuning will be complete after two oscillation
cycles and then the tuner will turn itself off.
8. Normal control function will resume after the
controller calculates tuning parameters.
SINGLE S
ETPOINT MODEL W
/OTP
Note
Start tuning with the process at ambient temperature. This allows the tuner
to calculate the low cutback and high
cutback values more accurately.
Note
“Stat” and “Sp.rr” in Sp list must be
set to OFF or “tunE” will not initiate.
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Functions
This type of controller has single ramp and dwell programming capabilities. The Ramp and Dwell can be configured to five different modes.
1. Mode 1 (Opt. 1) is a Ramp (if needed) to the
Setpoint temperature, a Dwell, and then a cool
down.
2. Mode 2 (Opt. 2) is the same as mode 1, except
the controller continues to heat at the Setpoint
after the Dwell has completed. (This mode does
not cool down.)
3. Mode 3 (Opt. 3) is the same as mode 1, except
the Dwell time includes the Ramp (if needed).
4. Mode 4 (Opt. 4) is the same as mode 2, except
the Dwell time includes the Ramp (if needed).
5. Mode 5 (Opt. 5) is a Dwell (delay time) before
the controller Ramps (if needed) to the Setpoint
temperature.
Program Overview
•Aprogram mode can be set by changing the
“tm.OP” variable to “Opt. 1, Opt. 2, Opt. 3, Opt.
4, or Opt. 5.
•ARamp rate may be set by changing the “SPrr”
variable to a value. The Ramp rate units are in
degrees per minute.
• The Dwell time can be set by changing the
“dwEll” variable to the desired value. Dwell time
units are in minutes.
• The program Status can be set by changing the
“StAt” variable to “run” or “oFF.” This variable
will start or stop the program.
Single Ramp & Dwell
Note
These instructions are used with the Single Setpoint models with OTP only
(See models listed on front page).
Mode 1 (Opt. 1)
Mode 2 (Opt. 2)
Mode 3 (Opt. 3)
Mode 4 (Opt. 4)
Mode 5 (Opt. 5)
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Program Setup
1. Press the PAGE button until the “SP” is displayed.
2. Press the SCROLL button once, “SPrr” (Ramp Rate)
will be displayed, set the desired Ramp rate with the
UP or DOWN buttons, if the ramp to setpoint feature
is needed. If the Ramp rate is not needed, then set
to “OFF” with the UP or DOWN buttons.
3. Press the SCROLL button once, “tm.OP” (Ramp &
Dwell mode) will be displayed, select the desired
mode with the UP or DOWN buttons. (Opt. 1, Opt. 2,
Opt. 3, Opt. 4, Opt. 5)
4. Press the SCROLL button once, “dwEll” will be displayed, set the desired Dwell time with the UP or
DOWN buttons. (Dwell in minutes.)
5. Press the PAGE button until the Actual temperature
is displayed.
Running the Program
1. Press the SCROLL button until “StAt” is displayed,
set to “run” with the UP or DOWN buttons.
2. Press the PAGE button to display Actual temperature.
Stopping the Program
Press the SCROLL button until “StAt” is displayed, set to
“oFF” with the UP or DOWN buttons.
Clearing the Flashing End
Press the PAGE and SCROLL buttons at the same time.
Note
The program must be stopped and
the controller must be displaying the
actual temperature before beginning
the Setup.
SINGLE R
AMP & DWELL
CONTROLLER
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Verifying a Running Program
Press the SCROLL button until “StAt” is displayed. The
display will show “run” if the program is running, or “oFF”
if it is not running. Press the PAGE button to display
Actual temperature.
SINGLE R
AMP & DWELL
CONTROLLER
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The 8 segment programmable controller consists of
a microprocessor based three-mode PID
(Proportional, Integral, Derivative), programmable temperature controller with over-temperature protection
and appropriate output switching devices to control the
furnace. The digital readout continuously displays
chamber (upper display) and setpoint (lower display)
temperatures unless the SCROLL or PAGE button is
depressed. The programmable controller can be used
as a single setpoint controller or as a programmable
controller. The 8 segment digital model enables eight
segments of programming.
Basic Operation
When the controller is turned ON, it will perform a
short self-test and then change to the HOME DISPLAY. The HOME DISPLAY shows the measured temperature (process value) in the upper display and the
desired value (setpoint) in the lower display.
To Change the Setpoint
If you want to change the setpoint, press the UP or
DOWN button until the desired setpoint value is displayed in the lower display and then release the button.
To View Display Units
From the HOME DISPLAY press the SCROLL button.
The display will briefly show the temperature units in
°C/F/K and then return to the HOME DISPLAY. (If you
require a different temperature unit call Barnstead
International Customer Service.)
To View the % Output Power
From the HOME DISPLAY press the SCROLL button
twice. Press the UP or DOWN button to display the
value. This value is a read-only value and cannot be
changed.
8 Segment Programmable
Model w/OTP
8 Segment Programmable Models with OTP
Output 1
PAGE
Button
AUTO/MAN
Button
Display
Window
Upper
Display
Lower
Display
RUN/HOLD
Button
UP ARROW
Button
DOWN ARROW
Button
SCROLL
Button
Note
The controller will return to the HOME
DISPLAY if left idle for more than a
few seconds.
Note
Once the desired parameter has been
selected, depressing either the UP or
DOWN button will change the parameter value. In all cases, the value
shown on the display is the current
working value of that parameter.
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Buttons and Indicators
OP1 (Output 1): illuminates when the heating output of the
temperature controller is on.
AUTO/MAN: (Auto/Manual Mode): when the controller is in
the automatic mode the output automatically adjusts to keep
the temperature or process value at the setpoint. The “AUTO”
light will illuminate. The manual mode has been disabled
through factory configuration. Call Customer Service for further information.
RUN/HOLD (Run/Hold button):
• Starts a program when pressed once—RUN light
illuminates.
• Holds a program when pressed again—HOLD light
illuminates.
• Cancels hold and continues running when pressed
again—HOLD light is off and RUN light illuminates.
• Exits a program when the button is held down for
two seconds—RUN and HOLD lights are off.
• At the end of a program the RUN light will flash.
• During holdback the HOLD light will flash.
PAGE button: allows you to choose a parameter from a list of
parameters.
SCROLL button: allows you to choose a parameter within a
list of parameters.
UP button: allows you to increase the value in the lower display.
DOWN button: allows you to decrease the value in the lower
display.
8 SEGMENT P
ROGRAMMABLE MODEL W
/OTP
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Controller Parameters
Home Display
°C: measured temperature in Celsius. Temperature units
cannot be changed without entering the configuration.
Contact Customer Service if a different temperature unit
is required.
OP: % output power demand; displayed in lower display
(cannot be changed).
C.id: Controller identification number.
IdHi: Deviation High Alarm
tunE: One-shot autotune enable.
run LiSt (Program Run List)
StAt: Displays the program status [OFF, run (running
active program), hoLd (program on hold), HbAc (waiting
for process to catch up), End (program completed)] in the
lower display. The controller will default to “OFF.”
FASt: Fast run through program (no/YES). The controller
will default to “no.”
SEG.d: Flash active segment type in the lower display of
the home display (no/YES). The controller will default to
“no.”
ProG LiSt (Program Edit List)
Hb: Press the UP or DOWN ARROW to select the hold-
back type [OFF (disables holdback), Lo (deviation low
holdback), Hi (deviation high holdback) or bAnd (deviation
band holdback)] for the entire program. The controller will
default to “OFF.”
Hb.U: Press the UP or DOWN ARROW to select the
holdback value (in display units).
rmP.U: Press the UP or DOWN ARROW to toggle
between ramp units (SEc, min or Hour). Controller will
default to “SEc.”
dwL.U: Press the UP or DOWN ARROW to toggle
between dwell units (SEc, min or Hour). Controller will
default to “SEc.”
8 SEGMENT P
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23
Cyc.n: Press the UP or DOWN ARROW to set the number of program cycles (1 to 999 or cont). The controller
will default to “cont.”
SEG.n: Press the UP or DOWN ARROW to select the
segment number (1-8 in 8 segment models).
tYPE: Press the UP or DOWN ARROW to select the segment type [End (end of program), rmP.r = ramp rate (ramp
to a specified setpoint at a set rate), rmp.t = ramp time
(ramp to a specified temperature in a set time), dwEll (to
maintain a constant temperature for a set time), StEP
(climb instantaneously from current to specified temperature). The controller will default to “End.” Other parameters used with tYPE include; tGt target setpoint), Rate
(rate of temperature increase) and dur (time to target setpoint or time to dwell)].
End.t: End segment type: dwELL (dwell continuous), rSEt
(reset) and S OP (End Segment Output power level.
AL LiSt (Alarm List)
IdHi: Deviation High Alarm.
Atun LiSt: (Autotune List)
tunE: One-shot autotune enable.
drA: Adaptive tune enable.
drA.t: Adaptive tune trigger level in display units. Range =
1—9999.
Pid LiSt
G.SP (Gain Setpoint): Is the temperature at which the
controller switches from the (SEt 1) PID values to the
(SEt 2) PID values.
Pb: Proportional band in display units. (SEt 1)
ti: Integral time in seconds. (SEt 1)
td: Derivative time in seconds. (SEt 1)
Pb2: Proportional band. (SEt 2)
ti2: Integral time in seconds. (SEt 2)
td2: Derivative time in seconds. (SEt 2)
8 SEGMENT P
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Note
The following alarm messages are factory default settings and may vary if
you have changed the configuration of
your controller:
IDHi = 50°C
2FSH = 1025°C
ACCS LiSt (Access List)
Access Code (Code needed to enter or change the other
configuration parameters which are not normally accessible.) Call customer service if this configuration is required.
Alarms
The controller will flash an alarm message in the home
display if an alarm condition is detected.
IdHi: PV deviation high alarm.
2FSH: PV full scale high alarm.
3FSL: PV full scale low alarm.
LCr: Load current low alarm.
HCr: Load current high alarm.
S.br: Sensor break: check that sensor is connected cor-
rectly.
L.br: Loop Break: Check that the heating circuits are
working properly.
Ld.F: Heater Circuit Fault: indication of either an open or
short solid state relay, a blown fuse, missing supply or
open circuit heater.
SSr.F: Solid state relay failure indications in a solid state
relay: indicates either an open or short circuit in the SSR.
Htr.F: Heater failure: Indication that there is a fault in the
heating circuit: indicates either a blown fuse, missing supply or open circuit heater.
Sensor Break Protection
This controller provides sensor break protection in the
event the thermocouple opens. If an open thermocouple
condition occurs, the digital display will Blink “S.br” and
the power to the heating element will be shut OFF (Cycle
light will extinguish).
8 SEGMENT P
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25
Over-Temperature Protection
(OTP)
The OTP will be in effect during any alarm condition when
the temperature of the furnace has deviated beyond the
limit. The “Deviation High” alarm is the only alarm value
which can be changed. To change it, press the SCROLL
button until “idHi” appears on the display. Press the UP or
DOWN button to select the OTP value you desire. We
recommend a value of 20° above your working temperature to provide protection for your workload.
To Operate the Controller as a
Single Setpoint Controller
1. Switch the circuit breaker to the “ON” position.
The setpoint temperature presently set in the
controller will appear in the lower display. (The
upper display indicates the actual chamber temperature.)
2. To change the setpoint, press the UP or DOWN
button until the desired setpoint value is displayed; then release the button.
3. The furnace will begin to heat if the new setpoint
temperature is higher than the present chamber
temperature.
Programming the Controller
The controller is capable of varying temperature or
process value with time through programming. Aprogram
is stored as a series of segments and can be run once,
repeated a set number of times or run continuously. To
create a customized program using the controller parameters listed under “Controller Parameters” at the beginning
of this section, follow the procedures outlined in the proceeding sections of this manual.
8 SEGMENT P
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Page 26
Hb: Holdback
Holdback consists of a value and a type. If the measured
value lags behind the setpoint by an undesirable amount
during a ramp or dwell, the holdback feature can be used
to freeze the program at its current state (the HOLD light
will flash). The program will resume when the error comes
within the holdback value.
OFF: holdback is disabled.
Lo (Deviation Low Holdback): holds the program back
when process variable deviates below the setpoint by
more than the holdback value.
Hi (Deviation High Holdback): holds the program back
when process variable deviates above the setpoint by
more than the holdback value.
bAnd (Deviation Band Holdback): combines the features of the high and low deviation holdback in that it
holds the program back when the process variable deviates above or below the setpoint by more than the holdback value.
To set the holdback type:
1. Press the PAGE button until you reach the program list (ProG LiSt).
2. Press the SCROLL button until display reads,
“Hb.”
3. Press the UP or DOWN button to toggle
between “bAnd, Hi, Lo and OFF.”
Hb U: Holdback Value
To set the holdback value:
1. Press the PAGE button until you reach the program list (ProG LiSt).
2. Press the SCROLL button until display reads,
“Hb.U.”
3. Press the UP or DOWN button to enter a holdback value.
26
8 SEGMENT P
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Note
The value set in this parameter is
always for the entire program.
Page 27
rmP.U: Setting Ramp Units
Ramp units are time units which are used in “rmP.r” segments (ramp to a setpoint at degrees per second, minute
or hour) and “rmP.t” segments (ramp to setpoint in a specific amount of time). See “Setting the Segment Type” for
an explanation on how to set a ramp segment.
1. Press the PAGE button until you reach the program list (ProG LiSt).
2. Press the SCROLL button until display reads,
“rmP.U.”
3. Press the UP or DOWN button to toggle
between seconds, minutes and hours.
dwL.U: Setting Dwell Units
Dwell units are time units which are used in “dwELL” segments (amount of time to remain at a specific temperature). See “Setting the Segment Type” for an explanation
on how to set a dwell segment.
1. Press the PAGE button until you reach the program list (ProG LiSt).
2. Press the SCROLL button until display reads,
“dwL.U.”
3. Press the UP or DOWN button to toggle
between seconds, minutes and hours.
CYC.n: Setting the Number of Cycles
Set the number of times a group of segments or programs are to be repeated by following the steps listed
below.
1. Press the PAGE button until you reach the program list (ProG LiSt).
2. Press the SCROLL button until display reads,
”CYC.n.”
3. Press the UP or DOWN button to select the
number of cycles you want to run or, press the
DOWN button to select “cont.” so the program
will run continuously.
8 SEGMENT P
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27
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28
Note
The program ramp rate is designed to
reduce the heatup rate or cooling rate
that the furnace normally exhibits.
When not using this feature, the furnace will operate at its maximum heating and cooling capability.
Setting the Segment Type
There are five segment types. Proceed with the following
steps according to the type of segment you have selected.
rmP.r (Ramp)
To ramp linearly at a set rate to a specified temperature:
1. Press the PAGE button until you reach the program list (ProG LiSt).
2. Press the SCROLL button until display reads,
”tYPE.”
3. Press the UP or DOWN button until display
reads, “rmP.r.”
Steps 4 and 5 are used in the 4 program model only. If
you are using an 8 segment program, skip to step 6.
4. Press the SCROLL button until display reads
“Hb.”
5. Press the UP or DOWN button to toggle
between “bAnd, Hi, Lo and OFF.”
6. Press the SCROLL button until display reads,
“tGt.”
7. Press the UP or DOWN button to set a target
setpoint.
8. Press the SCROLL button until display reads,
”rAtE.”
9. Press the UP or DOWN button to select a value
in ramp units (seconds, minutes or hours; set in
the “rmP.U” parameter).
rmP.t
To ramp to a specified temperature at a set time:
1. Press the PAGE button until you reach the program list (ProG LiSt).
2. Press the SCROLL button until display reads,
“tYPE.”
3. Press the UP or DOWN button until display
reads, “rmP.t.”
8 SEGMENT P
ROGRAMMABLE MODEL W
/OTP
Note
When the program ramp has ended or
has been reset, the furnace will continue to maintain setpoint temperature. It
will not cool to ambient temperature
unless the setpoint is set to ambient
temperature by the program or by the
operator.
Page 29
4. Press the SCROLL button until display reads,
“tGt.”
5. Press the UP or DOWN button to set a target
setpoint.
6. Press the SCROLL button until display reads,
“dur.”
7. Press the UP or DOWN button to select a time
in ramp units (seconds, minutes or hours; set in
the “rmP.U” parameter.
dwEll
To maintain a constant temperature for a specified time:
1. Press the PAGE button until you reach the pro-
gram list (ProG LiSt).
2. Press the SCROLL button until display reads,
“tYPE.”
3. Press the UP or DOWN button until display
reads, “dwEll.”
4. Press the SCROLL button until display reads,
“dur.”
5. Press the UP or DOWN button to select a time
in dwell units (seconds, minutes or hours; set in
the “dwL.U” parameter).
StEP
To climb instantaneously from the current temperature to
a specified temperature.
1. Press the PAGE button until you reach the pro-
gram list (ProG LiSt).
2. Press the SCROLL button until display reads,
“tYPE.”
3. Press the UP or DOWN button until the display
reads, “StEP.”
4. Press the SCROLL button until display reads,
“tGt.”
5. Press the UP or DOWN button to set a target
setpoint.
8 SEGMENT P
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29
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30
End
To end or repeat a program:
1. Press the PAGE button until you reach the program list (ProG LiSt).
2. Press the SCROLL button until display reads,
“tYPE.”
3. Press the UP or DOWN button until display
reads, “End.”
4. Press the SCROLL button until display reads,
“End.t.”
5. Press the UP or DOWN button to toggle
between “dwEll” (an indefinite dwell), “S OP”
(End Segment Output Power) and “rSET”
(reset).
Running a Program (8 Segment
Programmable Models)
To run a program, press the RUN/HOLD button. (The
RUN light will illuminate.)
Holding a Program
To put a running program on hold, press the RUN/HOLD
button. (The HOLD light will illuminate.)
Cancelling a Program
To cancel a program, hold the RUN/HOLD button down
until the RUN and HOLD lights go off.
8 SEGMENT P
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31
Tuning
The purpose of tuning your furnace is to match the characteristics of your controller to the characteristics of the
process being controlled. Good control is evidenced by:
stable, straight-line control of the setpoint temperature
with no fluctuations; No overshoot or undershoot of the
setpoint temperature; rapid restoration of the setpoint
temperature when external disturbances cause deviations
from the setpoint.
This controller has automatic tuning features which install
optimum tuning parameters to give the best temperature
accuracy. No manual loading of tuning parameters is
needed. We recommend that you tune the furnace to your
specific application to obtain the best results. To provide
the best temperature accuracy possible, use these features when you install your furnace and whenever you
change your application or procedure.
Tuning Error
The display will flash “tu.ER” if an error occurs during tuning. To clear the error and restart tuning, simultaneously
press the PAGE and SCROLL buttons and follow the
steps outlined in “Autotuning.”
G.SP: Gain Scheduling
Gain scheduling is the automatic transfer of control
between two sets of PID values. The controller does this
at a presettable process value. Gain scheduling is used
for difficult control processes which show large changes
in their response time or sensitivity at high or low temperatures, or when heating or cooling.
The G.SP gain schedule setpoint is factory set at 700° C.
The G.SP must be adjusted to 200°C from the desired
setpoint temperature when tuning.
Setting the Transfer Point
If gain scheduling has been enabled, “G.SP will appear at
the top of the PID list. This sets the value at which the
transfer will occur. When the process value is below this
level, PID1 will be active and when it is above, Pid2 will
8 SEGMENT P
ROGRAMMABLE MODEL W
/OTP
Note
Display will flash “tu.ER” if an error
occurs during tuning. To clear the
error and restart tuning, simultaneously press the PAGE and SCROLL buttons and follow the steps outlined in
“Autotuning.”
Note
To stop the tuning function, simultaneously press the PAGE and SCROLL
buttons.
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32
be active. Set a value between the control regions that
show the greatest change to achieve the best point of
transfer.
Tuning
The two sets of PID values can be manually set or automatically tuned. To tune automatically you must tune
above and below the transfer point G.SP. If the process
value is below the transfer point G.SP, the calculated values will automatically be inserted into the (SEt 1) set and
if the process value is above G.SP, the calculated values
will automatically be inserted into the (SEt 2).
Autotuning
The Autotune feature automatically sets up the PID values in the control parameters to suit new process conditions.
To tune your furnace using autotuning:
1. Load your furnace with a load similar to your
normal load and close the door.
2. Set the setpoint temperature.
3. Press the PAGE button until the display reads,
“Atun LiSt.”
4. Press the SCROLL button until “tunE OFF” is
displayed.
5. Press the UP or DOWN button to select “on.”
6. Simultaneously press the PAGE and SCROLL
buttons to return to the HOME DISPLAY. The
display will flash “tunE” while tuning is in
progress.
Adaptive Tuning
Adaptive tuning continuously evaluates tuning parameters. Adaptive tuning automatically installs new values if
better accuracy is possible. Adaptive tuning should be
used when the characteristics of a process change due to
load or setpoint changes or, in a process that can not
handle the oscillation caused by a one-shot tune.
8 SEGMENT P
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/OTP
Note
Start tuning with the process at ambient temperature. This allows the tuner
to calculate the low cutback and high
cutback values more accurately.
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33
To tune your furnace using adaptive tuning:
1. Load your furnace with a load characteristic of
those you intend to heat in it.
2. Press the PAGE button until display reads, “Atun
LiSt.”
3. Press the SCROLL button until “drA OFF” is dis-
played.
4. Press the UP or DOWN button to select “on.”
5. Press the SCROLL button until “drA.t” is dis-
played.
6. Press the UP or DOWN button until the desired
trigger value is achieved.
8 SEGMENT P
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34
1. For best results use only the center 2/3 of the
furnace chamber.
2. If you are heating a number of small parts,
spread them throughout the center two-thirds of
the furnace chamber.
3. Keep objects away from thermocouple.
4. Use insulated tongs and mittens when loading
and unloading furnace.
5. Always wear safety glasses.
6. Use the hearth plates supplied to protect bottom
of chamber. Part # PH421X1.
7. Do not exceed a load of 25 lbs. in the furnace
chamber.
Furnace Loading
Caution
Do not overload your furnace chamber. If the load is to be heated uniformly it should not occupy more than
the center two-thirds of the furnace
chamber. Failure to observe this caution could result in damage to furnace
components.
Page 35
Please note the following WARNINGS:
WARNING
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 Barnstead International at 1-800-553-0039.
This unit is equipped with a venting system on the top of
the furnace. This is for the removal of fumes from the
chamber of the unit. Contamination is a major cause of element failure, therefore, when possible remove the fume
forming material before heating. (e.g., cleaning cutting oil
from tool steel.)
Housekeeping is vital to your electric furnace - KEEP IT
CLEAN. Run your furnace up to 871°C empty occasionally to burn off the contamination that may exist on the insulation and elements. Maintain 871°C for at least 4 hrs.
Preventative Maintenance
Warning
Disconnect from the power supply
prior to maintenance and servicing.
Refer servicing to qualified personnel.
35
Page 36
36
to insure complete ashing of foreign materials.
Element life is reduced somewhat by repeated heating
and cooling. If the furnace is to be used again within a few
hours, it is best to keep it at the operating temperature or
at a reduced level such as 260°C.
General Cleaning Instructions
Wipe exterior surfaces with lightly dampened cloth containing mild soap solution.
PREVENTATIVE
MAINTENANCE
Page 37
37
PROBLEM POSSIBLE CAUSES CORRECTIVE ACTION
The power light does not The furnace is not connected Check furnace connection to
illuminate. to power supply. power source.
ON and OFF power switch Replace power switch.
defective.
Fan does not operate. The furnace is not connected to Check furnace connection
the power supply. to power source.
Blown fuses. Replace fuses.
The furnace does not heat. No power. Check power source and
fuses or breakers.
Thermocouple is open or Replace thermocouple or check
thermocouple leads reversed. thermocouple connections.
Controller malfunction. Verify and correct all
parameters and configuration
values. If malfunction persists,
replace control.
Element burned out. Replace muffle (element).
Solid state relay defective. Replace solid state relay.
Door switch malfunction. Re-align or replace door
switch.
Slow heatup. Low line voltage. Install line of sufficient size and
proper voltage. (Isolate furnace
from other electrical loads.)
Heavy load in chamber. Lighten load in chamber to
allow heat to circulate.
Wired improperly. Check wiring diagram for
correct wiring of your furnace.
One side of element is burned out Replace muffle (element).
on 120V or 100V unit.
Troubleshooting
The Troubleshooting section is intended to aid in defining and correcting possible service problems. When
using the chart, select the problem category that resembles the malfunction; then proceed to the possible
causes category and take necessary corrective action.
Page 38
38
PROBLEM POSSIBLE CAUSES CORRECTIVE ACTION
Furnace doesn’t stop heating Door switch is malfunctioning. Re-align or replace door
when the door is opened. safety switch.
Mechanized relay is Replace relay.
malfunctioning.
Repeated element burnout. Heating harmful materials. Clean up spills in and on
chamber.
Ventilate chamber by leaving
top vent slightly open when
heating known harmful reagents.
Wrong element. Install proper element.
Oxidized thermocouple. Replace thermocouple.
Contamination present from Clean and/or replace
previous burnout. insulation material.
Wired improperly. Check wiring diagram for correct
wiring of your furnace.
Inaccurate temperature readout. Oxidized or contaminated Replace thermocouple.
thermocouple.
Poor thermocouple connection. Tighten connections.
Solid state relay malfunction. Replace solid state relay.
Improper loading procedures. Use proper loading procedures.
Poor ventilation of base or Clear area around furnace base
cooling fan failed. or replace cooling fan.
Control out of calibration. Contact Barnstead International.
Thermocouple connections Reconnect thermocouple
reversed. correctly.
P.I.D. values invalid. Re-tune control.
Control malfunction. Verify and correct all parameter
and configuration values.
If malfunction persists, replace
control.
TROUBLESHOOTING
Page 39
39
Please note the following WARNINGS:
WARNING
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 Barnstead International at 1-800-553-0039.
Maintenance and Servicing
Page 40
40
Fuse Replacement
a. Disconnect from power supply.
b. Set furnace on its door.
c. Remove (one piece) top, back and bottom cover.
d. Replace fuses.
Thermocouple Replacement
(Type K)
a. Disconnect from power supply.
b. Set furnace on its door.
c. Remove (one piece) top, back and bottom cover.
d. Remove retaining clip from the thermocouple and
pull the thermocouple straight out from the chamber.
e. Disconnect thermocouple lead ends from back of
the controller and remove the thermocouple.
f. Reinstall thermocouple by reversing steps Athrough
E.
Muffle (Heating Element)
Replacement
a. Disconnect from power supply.
b. Set furnace on its door.
c. Remove (one piece) top, back and bottom cover.
d. Disconnect element lead wires from relays. (Note
placement and connection of.)
e. Remove clip from thermocouple and pull thermocou-
ple out of muffle.
f. Remove metal retaining band from defective muffle.
MAINTENANCE AND
SERVICING
Warning
Disconnect from the power supply
prior to maintenance and servicing.
Refer servicing to qualified personnel. Replace fuses with the same
type and rating.
Note
Perform only maintenance
described in this manual. Contact
an authorized dealer or our factory
for parts and assistance.
Note
Make sure yellow thermocouple
lead wire is connected to terminal
V+ on back of the controller. Make
sure red thermocouple lead wire is
connected to terminal V- on back of
the controller. Make sure the
exposed section of the T/C lead
wires are not contacting each other.
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41
g. Loosen top adjustment bracket and remove de-
fective muffle.
h. Insert new muffle with vent hole facing the top of
unit.
i. Readjust top bracket to fit snugly up against
muffle. Make sure muffle is laying flush against
front case section.
j. Reinstall metal retaining band and tighten until
muffle seats firmly into case section.
k. Reconnect element lead wires.
On the 120V or 100V muffle there are three element
lead wires. Connect the front and the back element lead
wires to the mechanical relay. Connect the middle element lead wire to the solid state relay.
On the 230V and 240V muffles there are two element
lead wires. Connect the front element lead wire to the
mechanical relay. Connect the back element lead wire to
the solid state relay.
l. Reinstall the thermocouple and the retaining
clip.
m. Reinstall the cover section.
n. Set the furnace upright and test the operation of
the furnace.
MAINTENANCE AND
SERVICING
Note
Make sure the black insulation sleeving covers the exposed portion of the
element lead wires.
Note
Make sure the exposed section of the
T/C lead wires are not contacting each
other.
Page 42
42
Wiring Diagrams
Single Setpoint w/OTP Control
SW1172X1
SW1172X1
SW1172X1
SW1172X1
Page 43
43
WIRING D
IAGRAMS
8 Segment Programmable Control
SW1172X1
SW1172X1
SW1172X1
Page 44
44
Listed below are the common replacement parts for all models of the F62700 furnace.
PART PART NO.
Temperature Control (Single Set Point Models) CN71X76
Temperature Control (8 Segment Programmable Models) CN71X77
Muffle Heating Element 100V EL1075X3A
Muffle Heating Element 120V EL1075X1A
Muffle Heating Element 220-240V EL1075X2A
Solid State Relay RYX34
Mechanical Relay 120V, 100V RYX56
Mechanical Relay 220-240V RYX57
On/Off Switch 120V SWX143
On/Off Switch 220-240V SWX144
Fan 120V, 100V FAX29
Fan 220-240V FAX7
Door Switch SW1172X1
Thermocouple TC517X1A
Door Insulation JC517X1
Hearth Plate (2 required) PH421X1
Pilot light, 100V & 120V PLX76
Pilot light, 220-240V PLX82
Door Assembly, with Insulation DR1075X1A
Fuses, Type Non-Time lag, 250 Volt, 10 Amp (F62730 Models) FZX30
Fuses, Type Non-Time lag, 250 Volt, 20 Amp (F62734, F62735 Models) FZX29
Replacement Parts
Warning
Replace fuses with the same type and rating.
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45
Please refer to the Specification Plate for the complete model number, serial number, and
series number when requesting service, replacement parts or in any correspondence concerning this unit.
All parts listed herein may be ordered from the Barnstead International dealer from whom
you purchased this unit or can be obtained promptly from the factory. When service or
replacement parts are needed we ask that you check first with your dealer. If the dealer
cannot handle your request, then contact our Customer Service Department at
563-556-2241 or 800-553-0039.
Prior to returning any materials to Barnstead International, please contact our Customer
Service Department for a “Return Materials Authorization” number
(RMA). Material returned
without an RMA
number will be refused. Minimum invoice: $25.
Ordering Procedures
Page 46
46
Thermal Ceramics
Material Safety Data Sheet
Date Revised: 7/2/91
PRODUCT IDENTIFICATION
Trade Name(s): CERAFIBER
Generic Name: REFRACTORY CERAMIC FIBER INSULATION CAS #: 65997-17-3
Chemical Name: ALUMINA SILICA Formula: MIXTURE
Manufacturer: Thermal Ceramics Telephone: (404) 796-4200
Address: P.O. BOX 923, 2102 Old Savannah Road
City: Augusta State: Georgia Zip: 30903
PRODUCT INGREDIENTS
Ingredient Name Cas Number % PEL and TLV (except as noted)
REFRACTORY CERAMIC FIBER 65997-17-3 100 1 FIBER/CC EXPOSURE
GUIDELINE 5mg/M3 -
NUISANCE RESPIRABLE OSHA
10mg/M3 - NUISANCE TOTAL
- ACGIH
CRYSTALLINE SILICA 14464-46-1 >20 0.05 mg/M3 - OSHA
(CRISTOBALITE) WILL FORM Respirable Dust
"AFTER SERVICE" AT
TEMPERATURES >1000°C.
PHYSICAL DATA
Appearance and Odor: WHITE FIBER-NO ODOR.
Boiling Point: NA Evaporation Rate (NA = 1): NA
Vapor Pressure: NA Specific Gravity (water = 1 ): 2.6
Water Solubility (%): NIL Melting Point: >3000°F
Vapor Density (Air= l): NA % Volatile by Volume: 0
FIRE AND EXPLOSION DATA
Flash Point (Method): NONFLAMMABLE NFPA Flammable/Combustible Liquid
Classification: NA Flammable Limits: LEL: NA % UEL: NA %
Auto-Ignition Temperature: NA
Material Safety Data Sheet
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HEALTH HAZARDS
Summary/Risks
Summary: EXPOSURE TO DUST FROM THIS PRODUCT SHOULD BE MINIMIZED. ANIMAL INHALATION
AND ARTIFICIAL IMPLANTATION STUDIES HAVE REPORTED THE DEVELOPMENT OF
TUMORS. BASED ON PRELIMINARY RESULTS, A NOTICE OF SUBSTANTIAL RISK HAS BEEN
FILED WITH THE EPA ACCORDING TO SECTION 8(e) OF THE TOXIC SUBSTANCES CONTROL
ACT. BASED ON ANIMAL STUDIES, IARC HAS CLASSIFIED RCF AS POSSIBLY CARCINOGENIC
FOR HUMANS (2B). DATA FROM HUMAN EPIDEMIOLOGICAL STUDIES IS INSUFFICIENT. THIS
SUBSTANCE OR MIXTURE HAS NOT BEEN CLASSIFIED A CARCINOGEN BY NTP OR OSHA.
Medical conditions which may be aggravated: AS WITH ANY DUST, PRE-EXISTING UPPER
RESPIRATORY AND LUNG DISEASES MAY BE AGGRAVATED.
Target Organ(s): LUNGS, SKIN AND EYES .
Acute Health Effects: PRODUCT IS A MECHANICAL IRRITANT TO SKIN, EYES AND UPPER
RESPIRATORY SYSTEM.
Chronic Health Effects: EXCESSIVE EXPOSURE TO RCF DUSTS AND AFTER SERVICE FIBERS MAY
CAUSE LUNG DAMAGE (FIBROSIS). IARC STATES THERE IS SUFFICIENT EVIDENCE IN
ANIMALS AND LIMITED EVIDENCE IN HUMANS TO CLASSIFY CRYSTALLINE SILICA AS A
PROBABLE CARCINOGEN (2A) AND RCF AS A POSSIBLE CARCINOGEN (2B).
Primary Entry Route(s): INHALATION, SKIN AND EYE CONTACT.
Signs/Symptoms of Overexposure
Inhalation: IRRITATION OR SORENESS IN THROAT & NOSE. IN EXTREME EXPOSURES SOME
CONGESTION MAY OCCUR.
Skin Contact: TEMPORARY IRRITATION OR RASH.
Skin Absorption: NA
Ingestion: NOT HAZARDOUS WHEN INGESTED. MAY CAUSE TEMPORARY IRRITATION TO GI TRACT.
Eyes: TEMPORARY IRRITATION OR INFLAMMATION.
First Aid/Emergency Procedures
Inhalation: REMOVE TO FRESH AIR. DRINK WATER TO CLEAR THROAT AND BLOW NOSE TO
EVACUATE FIBERS.
Skin Contact: WASH AFFECTED AREAS GENTLY WITH SOAP AND WARM WATER.
Skin Absorption: NA
Ingestion: NA
Eyes: FLUSH EYES WITH COPIOUS QUANTITIES OF WATER. IF IRRITATION PERSISTS CONSULT A
PHYSICIAN.
REACTIVITY DATA
MATERIAL IS STABLE. HAZARDOUS POLYMERIZATION CANNOT OCCUR.
Chemical Incompatibilities: HYDROFLUORIC ACID
Conditions to Avoid: NONE IN DESIGNED USE.
Hazardous Decomposition Products: NONE
SPILL OR LEAK PROCEDURES
Procedures for Spill/Leak: VACUUM CLEAN DUST WITH EQUIPMENT FITTED WITH HEPA FILTER. IF
SWEEPING IS NECESSARY USE A DUST SUPPRESSANT.
Waste Management: WASTES ARE NOT HAZARDOUS AS DEFINED BY RCRA (40 CFR PART 261).
COMPLY WITH FEDERAL, STATE & LOCAL REGULATIONS.
METHOD OF DISPOSAL - LANDFILL. RQ - N/A.
MATERIAL
SAFETY D
ATA SHEET
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SPECIAL PROTECTION INFORMATION
Goggles: GOGGLES OR SAFETY GLASSES WITH SIDE SHIELDS ARE RECOMMENDED.
Gloves: GLOVES ARE RECOMMENDED.
Respirator: <1 F/CC, USE 3M 9900; <10 F/CC, USE MSA COMFO II WITH H FILTER; <50 F/CC, USE MSA
ULTRA-TWIN H FILTER; OR EQUIVALENTS. SEE SECTION IX-OTHER.
Ventilation: USE SUFFICIENT NATURAL OR MECHANICAL VENTILATION TO KEEP DUST LEVEL TO
BELOW PEL/TLV/WEG (WORKPLACE EXPOSURE GUIDELINE) USE DUST COLLECTION WHEN
TEARING OUT.
Other: WEAR LOOSE FITTING, LONG SLEEVED CLOTHING. WASH EXPOSED AREAS WITH SOAP &
WARM WATER AFTER HANDLING. WASH WORK CLOTHES SEPARATELY FROM OTHER
CLOTHING; RINSE WASHER THOROUGHLY.
Special Considerations for repair/maintenance of contaminated equipment: CRISTOBALITE
RESPIRATOR: <10X PEL, USE 3M 9900; <100X PEL, USE MSA ULTRA-TWIN H FILTER;
OR EQUIV. SEE SEC IX-OTHER.
SPECIAL PRECAUTIONS
*** ALWAYS SEGREGATE MATERIALS BY MAJOR HAZARD CLASS ***
THIS PRODUCT CONTAINS A CHEMICAL KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER.
Storage Segregation Hazard Classes: IRRITANT
Special Handling/Storage: KEEP MATERIAL DRY.
Special Workplace Engineering Controls: ADEQUATE VENTILATION TO KEEP DUST LEVEL TO BELOW
PEL/TLV/WEG (WORKPLACE EXPOSURE GUIDELINE).
Other: ADDITIONAL INFORMATION ON THE HEALTH AND SAFETY ASPECTS OF REFRACTORY
CERAMIC FIBERS IS AVAILABLE.
† Copyright© 1980, National Fire Protection Assoc., Quincy, MA 02269. This reprinted material is not the
complete and official position of the NFPA on the referenced subject, which is represented only by the standard in its entirety. MSSM/226-21:26/00030
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 law(s). However, no warranty or representation
with respect to such information is intended or given.
MSDS/MSD3 FORM REV. 7/2/91
MATERIAL
SAFETY D
ATA SHEET
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TITLE RIGHT
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Two Year Limited Warranty
BARNSTEAD INTERNATIONAL (“BARNSTEAD”) warrants that a product manufactured by Barnstead shall be
free of defects in materials and workmanship for two (2) year from the first to occur of (i) the date the product
is sold by BARNSTEAD or (ii) the date the product is purchased by the original retail customer (the
“Commencement Date”). Except as expressly stated above, BARNSTEAD MAKES NO OTHER WARRANTY,
EXPRESSED OR IMPLIED, WITH RESPECT TO THE PRODUCTS AND EXPRESSLY DISCLAIMS ANY AND
ALL WARRANTIES, INCLUDING BUT NOT LIMITED TO, WARRANTIES OF DESIGN, MERCHANTABILITY
AND FITNESS FOR APARTICULAR PURPOSE.
An authorized representative of BARNSTEAD must perform all warranty inspections. In the event of a defect
covered by BARNSTEAD’s warranty, BARNSTEAD shall, as its sole obligation and exclusive remedy, provide
free replacement parts to remedy the defective product. In addition, for products sold by BARNSTEAD within
the continental United States or Canada, BARNSTEAD shall provide provide free labor to repair the products
with the replacement parts, but only for a period of ninety (90) days from the Commencement Date.
BARNSTEAD’s warranty provided hereunder shall be null and void and without further force or effect if there
is any (i) repair made to the product by a party other than BARNSTEAD or its duly authorized service representative, (ii) misuse (including use inconsistent with written operating instructions for the product), mishandling, contamination, overheating, modification or alteration of the product by any customer or third party or
(iii) use of replacement parts that are obtained from a party who is not an authorized dealer of BARNSTEAD.
Heating elements, because of their susceptibility to overheating and contamination, must be returned to the
BARNSTEAD factory and if, upon inspection, it is concluded that failure is due to factors other than excessive
high temperature or contamination, BARNSTEAD will provide warranty replacement. As a condition to the
return of any product, or any constituent part thereof, to BARNSTEAD’s factory, it shall be sent prepaid and a
prior written authorization from BARNSTEAD assigning a Return Materials Number to the product or part shall
be obtained.
IN NO EVENT SHALL BARNSTEAD BE LIABLE TO ANY PARTY FOR ANY DIRECT, INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES, OR FOR ANY DAMAGES RESULTING FROM LOSS OF
USE OR PROFITS, ANTICIPATED OR OTHERWISE, ARISING OUT OF OR IN CONNECTION WITH THE
SALE, USE OR PERFORMANCE OF ANY PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, TORT (INCLUDING NEGLIGENCE), ANY THEORY OF STRICT LIABILITY OR REGULATORY
ACTION.
The name of the authorized Barnstead International dealer nearest you may be obtained by calling
1-800-446-6060 (563-556-2241) or writing to:
2555 Kerper Boulevard
P.O. Box 797
Dubuque, Iowa 52001-0797
Phone: 563-556-2241 or 800-553-0039
Fax: 563-589-0516
E-mail: mkt@barnstead.com
www.barnstead.com
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