BARNSTEAD|THERMOLYNE
MEL-TEMP®
Capillary Melting Point Apparatus
Model No.
1001
1002
1101D
1102D
1201D
1202D
-
120
230
120
230
120
230
VAC
VAC
VAC,
VAC,
VAC,
VAC,
Digital Thermometer
Mercury Thermometer
Digital Thermometer
Mercury Thermometer
LT1187X2 • 9/25/00
1
Table of Contents
Introduction..........................................................................................................................................................3
Safety Information ..............................................................................................................................................4
Alert Signals..................................................................................................................................................4
Intended Use ................................................................................................................................................4
General Usage..............................................................................................................................................4
Warnings ......................................................................................................................................................4
General Specifications ........................................................................................................................................5
Declaration of Conformity ............................................................................................................................6
Environmental Conditions ............................................................................................................................6
Installation ..........................................................................................................................................................7
Capillary Selection ........................................................................................................................................7
Operation ............................................................................................................................................................8
General Maintenance ..........................................................................................................................................9
General Cleaning Instructions ......................................................................................................................9
Glass Thermometers ....................................................................................................................................9
Separated Thermometer Mercury Thread ....................................................................................................9
Thermometer Verification............................................................................................................................10
Removing Stuck Thermometer from MEL-TEMP Unit................................................................................10
Lamp Replacement ....................................................................................................................................11
Replacing Fuses ........................................................................................................................................11
Replacement Parts............................................................................................................................................12
Ordering Procedures ........................................................................................................................................13
One Year Limited Warranty ..............................................................................................................................14
2
Introduction
MEL-TEMP provides precise melting points
up to 500°C. Castings conduct and radiate
heat uniformity to capillaries and thermometer. This patented technology completely eliminates the mess and hazards of conventional
oil bath designs. Sample observation is
enhanced by an integrated light and precision
6X lens.
MEL-TEMP is engineered to withstand years
of heavy use.The housing is made of
extruded aluminum. Durable, top quality
components are mounted on a 1/8” thick
aluminum panel.
MEL-TEMP accepts up up three capillaries.
Samples are illuminated and clearly visible
through the precision 6-power lens. Each
capillary is heated on three sides and the
block is made from a highly conductive alloy
to prevent hot spots.
3
Safety Information
Intended Use
Alert Signals
Warning
Warnings alert you to a possibility of
personal injury.
Caution
Cautions alert you to a possibility of
damage to the equipment.
Note
Notes alert you to pertinent facts and
conditions.
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.
Your Capillary Melting Point Apparatus has been
designed with function, reliability and safety in
mind. It is your responsibility to install it in conformance with local electrical codes. For safe
operation, please pay attention to the alert
signals throughout the manual.
General Usage
Do not use this product for anything other than
its intended usage.
Warnings
To avoid personal injury:
1. Refer servicing to qualified personnel.
2.
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.
3.
Thermometer must be rated with a
range high enough to cover the specifications of this product. Improperly rated
thermometers may burst if used above
rated temperature.
To avoid electrical shock:
1. Do not allow unit to become wet.
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2.
Use a properly grounded electrical outlet of correct voltage and current handling capacity.
3.
If power cord becomes damaged,
replace immediately.
4.
Disconnect from power supply before
servicing.
General Specifications
Temperature range:
Heating rate control:
Ambient to 500°C
Continuously adjustable with built-in variable
transformer
Temperature resolution:
0.1°C with low mass thermocouple and precision
digital thermometer
One-half the smallest graduation with glass
thermometer
Reproducibility:
1°C
Absolute accuracy of melting point: determined by thermometer
Melting point capillaries:
accepts 1 to 3 capillaries simultaneously,
1.5-1.75mm outside diameter.
Thermometer well:
6.75mm inside diameter, 76 mm deep
Heat-up time, full power:
25°C-400°C in 5 minutes
400°C-500°C in 4 minutes
Cool-down time, unassisted:
500°C-400°C in 2 minutes
400°C-300°C in 2 minutes
300°C-200°C in 5 minutes
200°C-100°C in 7 minutes
Dimensions:
14L x11.7W x23H (cm)
Shipping Weight:
2.3kg
Power requirements:
200 watts,120 VAC or 200 watts, 230 VAC
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GENERAL SPECIFICATIONS
Declaration of Conformity
Barnstead|Thermolyne hereby declares under its sole responsibility
that this product conforms with the technical requirements of the following standards (230 volt models only):
EMC: EN 61000-3-2
EN 61000-3-3
EN 61326-1
Limits for Harmonic Current Emissions
Limits for Voltage Fluctuations and Flicker
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
Part II: Particular Requirements for
Laboratory Equipment for the Heating
of Materials
EN 61010-2-010
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.
Environmental Conditions
Operating:
Storage:
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17°C - 27°C; 20% - 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: 2000 meters.
-25°C - 65°C; 20% to 80% relative humidity.
Installation
Plug MEL-TEMP into a grounded wall receptacle using the supplied power cord. The voltage and power required for your MEL-TEMP
is marked on the label at the rear of the unit.
Note
Replacement capillaries may
be purchased directly from
Barnstead|Thermolyne. See
“Replacement Parts” list.
Capillary Selection
Your MEL-TEMP includes a vial of
Barnstead|Thermolyne’s precision melting
point capillaries. They were specifically developed to fit the MEL-TEMP and will provide the
most uniform and repeatable results. Never
force a capillary into the MEL-TEMP.
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Operation
Note
If your MEl-TEMP was
purchased with our
thermocouple kit for use with a
digital thermometer, please
follow the kit’s instruction sheet.
Note
Your MEL-TEMP may produce
smoke the first time it is heated.
The smoke is caused by residual
machining oils that have
impregnated the metal casing
assembly. Once the oils burn
away, the smoke will
permanently cease.
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1.
Place the thermometer in its well.
2.
Turn the power switch ON and set the
power level to obtain the desired heating rate at the anticipated melting range.
Use the heating rate of six degrees per
minute or less at the melting range.
•
Observe samples with the eye about 6”
from the lens.
•
For the most accurate results, use 3-4
mm columns of thoroughly dried, finely
powdered, densely packed samples.
General Maintenance
Cleaning Instructions
Wipe exterior surfaces with lightly dampened
cloth containing a mild soap solution.
Glass Thermometers
We distribute two glass thermometers which
are manufactured expressly for us to our
specifications. They are intended primarily for
use with MEl-TEMP Capillary Melting Point
Apparatus which has a 6.75 mm diameter
thermometer well.The 0°-400°C thermometer
is calibrated for 76mm immersion and is 400
mm long. It is mercury filled, has a white back
and is divided in 1° graduations. The 90500°C thermometer is also calibrated for 76
mm immersion and is 400 mm long. It is fabricated of hard glass, has a white back, is mercury filled under nitrogen pressure and is
divided in 1° graduations.
Separated Thermometer
Mercury Thread
Vibration or shock during shipment occasionally causes a separation or breaking of the
mercury thread in the thermometer stem.
Please do not return a thermometer with a
separated mercury thread as it can be
reunited easily in the following way.
1. Dip the thermometer bulb into a few
ml of an acetone/dry ice mixture until
the mercury threads shrink entirely
into thermometer bulb. Immediately
remove the bulb from the cold mixture
and tap it gently to free entrained gas
bubbles. Then let the thermometer
warm up to room temperature.
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GENERAL MAINTENANCE
Thermometer Verification
Note
A set of 26 melting point standards and a precision digital
thermometer with thermocouple
is available. See “Replacement
Parts” list.
Note
A precision digital thermomether and thermocouple
may be purchased directly from
B|T. See “Replacement Parts”
list.
Periodic verification is important because of
hysteresis can occur when a thermometer is
cycled through a large temperature range.
Thermometers can be verified using samples
of accurately known melting range.
Alternatively, insert a fine iron-costantan thermocouple into a 3-5 mm column of magnesia
or alumina in a melting point capillary. Then
raise the temperature of the MEL-TEMP at a
controlled rate and use the thermocouple
readings to determine the thermometer corrections at appropriate temperature intervals.
Removing Broken Capillaries
Broken capillaries are removed from the
instrument in the following manner:
1. Switch off the main power switch and
unplug the power cord from the wall.
Allow the unit to cool.
2.
Remove the screws at the right and
left side of the unit and lift off the
housing cover.
3.
Remove the lens with an ordinary pair
of internal, snap-ring pliers. Pliers with
a 0.038 inch straight tim work nicely.
4.
With the lens removed, hold the unit
upside down and shke the capillary
fragments into a suitable waste container.
5.
Replace the lens (flat side in), snap
right, housing cover and screws.
You may separate the aluminum branched
tube (the cast metal part that holds the lens)
from the heat block. The socket head screws
can be removed with a 5/64” ball-driver.
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GENERAL MAINTENANCE
Lamp Replacement
Note
Replacement lamps are
available. See
“Replacement Parts” list.
Note
Replacement fuses are
available. See
“Replacement Parts” list.
1.
Switch off the main power switch and
unplug the power cord from the wall. Allow
unit to cool.
2.
Remove the screws at the right and left
side of the unit and lift off the housing
cover.
3.
The light shield is held in place with a multipronged retaining spring. To remove the
light shield, pull straight up with moderate
force. If necessary, rock the light shield
back and forth slightly while pulling.
4.
To remove the burned out bulb, gently push
it towards the socket and rotate it approximately 30 degrees counter-clockwise.
5.
Replace the lamp with a new one and reinstall the light shield, housing cover and
screws.
Replacing Fuses
1.
Unplug your MEL-TEMP before replacing
fuses.
2.
MEL-TEMP has two fuses located in the
power entry module (the same part that the
power cord plugs into). To replace these
fuses, remove the fuse drawer by squeezing the tabs with your fingertips in the direction indicated by the arrows on the drawer.
3.
Substitute new fuses for the blown fuses in
the drawer, then push the drawer back into
the power entry module. Both sides of the
drawer should click into position.
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Replacement Parts
Part No.
1015
1003
1004
1005
1006
1007
1008
LMX21
LMX20
AY1150X1
CRX96
CRX70
EL1187X1
EL1187X2
WDX2
5120-0025
5120-0016
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Description
Student Digital Thermometer
Capillaries, vial of 100
Mercury Thermometer, 0-400°C, 1° gradations
Mercury Thermometer, 100-500°C, 1° gradations
Precision Digital Thermometer, requires part no. 1007
Low Mass Thermocouple for MEL-TEMP, requires part no. 1006
Melting Point Standards, set of 26 standards; melting ranges 50 to 300°C at
roughly 10°C increments, each standard weighs 250 to 1000mg
Replacement Bulb, 115V
Replacement Bulb, 230V
Heat Casting
Power Cord, 115V
Power Cord, 230V
Heating Element, 115V
Heating Element, 230V
Window Glass
Fuse, 2 amp, 115V
Fuse, 1 amp, 230V
Ordering Procedures
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|Thermolyne 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
319-556-2241 or 800-553-0039.
Prior to returning any materials to Barnstead|Thermolyne Corp., please contact our
Customer Service Department for a “Return Goods Authorization” number (RGA). Material
Returned without an RGA number will be returned.
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One Year Limited Warranty
BARNSTEAD|THERMOLYNE CORPORATION (“BARNSTEAD”) warrants that if a product manufactured by
Barnstead shall be free of defects in materials and workmanship for one (1) 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,
MERCHANT ABILITY AND FITNESS FOR A PARTICULAR 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 Goods 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|Thermolyne dealer nearest you may be obtained by calling 1-800-4466060 (319-556-2241) or writing to:
Barnstead|Thermolyne
P.O. Box 797
2555 Kerper Boulevard
Dubuque, IA 52004-0797
USA
FAX: (319) 589-0516
E-MAIL ADDRESS: mkt@barnstead.com
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Barnstead|Thermolyne
A Sybron Laboratory Products Company
2555 Kerper Boulevard
P.O. Box 797
Dubuque, IA 52004-0797
Phone: 319-556-2241, 800-553-0039
Fax: 319-589-0516
E-mail Address: mkt@barnstead.com
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