Barnstead International 1085 Series User manual

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Type S108500 SAFE-T S10
Explosion Proof Stirrer
LT1085X1 • 4/27/05 Serial Number _____________________________________
OPERATION MANUAL
SERIES 1085
UL Listed for Class I,
Group C and D Hazardous Locations
Model # Voltage Description
S108525 100-120 10.5” X 10.5” (26.7 cm X 26.7 cm)
UL Listed Ceramic Top

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Table of Contents
Safety Information ..............................................................................................................................................3
Alert Signals..................................................................................................................................................3
Warnings ......................................................................................................................................................3
Summary of Hazardous Atmospheres..........................................................................................................4
Introduction..........................................................................................................................................................5
Intended Use ................................................................................................................................................5
General Usage..............................................................................................................................................5
Principles of Operation ................................................................................................................................5
General Specifications ........................................................................................................................................6
Installation ..........................................................................................................................................................7
Site Selection................................................................................................................................................7
Operation ............................................................................................................................................................8
Stirring Speed Specifications........................................................................................................................8
Setting the Stirring Speed ............................................................................................................................8
Stirring Speed Guide ....................................................................................................................................8
Overcurrent Protection..................................................................................................................................9
Maintenance and Servicing ..............................................................................................................................10
General Cleaning Instructions ....................................................................................................................10
Ordering Procedures ........................................................................................................................................11
One-Year Limited Warranty ..............................................................................................................................12

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This manual contains important operating and
safety information. You must carefully read and
understand the contents of this manual prior to
the use of this equipment.
Your Barnstead|Thermolyne S108525 SAFE-T
S10 Explosion-Proof Stirrer (UL Listed for Class I,
Group C and D Hazardous Locations) has been
designed with function, reliability, and safety in
mind. It is the user's responsibility to install it in
conformance with national and local electrical
codes. For safe operation, please pay attention to
the alert signals throughout the manual.
Warnings
To avoid electrical shock, this stirrer must:
1. Be installed by a competent, qualified
electrician who is familiar with installing
Explosion-Proof/Flameproof electrical
equipment and insures compatibility
among stirrer specifications, power
source and ground requirements.
To avoid personal injury:
1. Caution: Due to the nature of this product,
its safety will be compromised should
maintenance or servicing be performed
on it. If maintenance or servicing is need-
ed, the stirrer must be returned to the fac-
tory.
2. Caution: To reduce risk of the ignition of
hazardous atmospheres, enclosure
chambers must be kept tightly sealed at
all times.
3. Do not use metal foil on stirrer. Intended
for use with glass vessels. Metal vessels
may be used (e.g. stainless steel ware).
Safety Information
Warning
Warnings alert you to a possibility of per-
sonal injury.
Caution
Cautions alert you to a possibility of
damage to the equipment.
Note
Notes alert you to pertinent facts and
conditions.
Alert Signals

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SAFETY INFORMATION
Summary of Hazardous Atmospheres
Chemicals/atmospheres designated as Class I, Group C and Group D in accordance with
the National Electric Code, National Fire Protection Association (NFPA 70).*
* Not a complete list. For a more
complete list of flammable chemicals,
see classification of gases, vapors,
and dusts for electrical equipment in
hazardous (classified) locations,
NFPA 497.
Warning
To reduce the risk of fire or explo-
sion, do not operate or install the
SAFE-T S10 where the marked
operating temperature (T6, ≤85°C)
exceeds the ignition temperatures of
the chemical vapors/hazardous
atmospheres present.
GROUP CHEMICAL/ATMOSPHERE IGNITION TEMPERATURES
CAcetaldehyde 175°C, 347°F
CDiethyl Ether 160°C, 320°F
CEthylene 450°C, 842°F
CUnsymmetrical Dimethyl Hydrazine (UDMH) 249°C, 480°F
DAcetone 465°C, 869°F
DAcrylonitrile 481°C, 898°F
DAmmonia 498°C, 928°F
DBenzene 498°C, 928°F
DButane 288°C, 550°F
D1-Butanol 343°C, 650°F
D2-Butanol 405°C, 761°F
Dn-Butyl Acetate 421°C, 790°F
DCyclopropane 503°C, 938°F
DEthane 472°C, 882°F
DEthanol 363°C, 685°F
DEthyl Acetate 427°C, 800°F
DEthylene Dichloride 413°C, 775°F
DGasoline 280-471°C, 536-880°F
DHeptane 204°C, 399°F
DHexane 225°C, 437°F
DIsoamyl Alcohol 350°C, 662°F
DIsoprene 220°C, 428°F
DMethane (Natural Gas) 630°C, 999°F
DMethanol 385°C, 725°F
DMethyl Ethyl Ketone 404°C, 759°F
DMethyl Isobutyl Ketone 440°C, 840°F
D2-Methyl-1-Propanol 416°C, 780°F
D2-Methyl-2-Propanol 478°C, 892°F
DNaptha (Petroleum Naptha) 288°C, 550°F
DPyridine 482°C, 900°F
DOctane 206°C, 403°F
DPentane 243°C, 470°F
D1-Pentanol 300°C, 572°F
DPropane 450°C, 842°F
D1-Propanol 413°C, 775°F
D2-Propanol 399°C, 750°F
DPropylene 455°C, 851°F
DStyrene 490°C, 914°F
DToluene 480°C, 896°F
DVinyl Acetate 402°C, 756°F
DVinyl Chloride 472°C, 882°F
DXylenes 464-529°C, 867-984°F

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Intended Use
The S108525 SAFE-T S10 Stirrer is UL listed
and has been designed to meet OSHA and
other safety standards. It is intended for stirring
in atmospheres which have an ignition temper-
ature of > 85°C.
The unit consists of a ceramic top plate and an
adjustable electronic stirring speed control.
General Usage
Do not use this product for anything other than
its intended usage.
Principles of Operation
The stirring speed on a SAFE-T S10 is con-
trolled by an electronic control. The stirring
motor located in an explosion-proof enclosure
is combined with a powerful magnet to provide
excellent coupling with a stir bar. All control and
electrical connections are contained within the
aluminum explosion-proof enclosure.
Introduction
Caution
When removing the SAFE-T-S10
Stirrer from the shipping carton and
packaging or moving the unit to the
site of installation, do not lift the unit
by the ceramic top plate. Lifting the
unit by the top plat may cause dam-
age to the unit.
Note
The S108525 SAFE-T S10 Stirrer is
UL listed explosion-proof for Class I,
Division I, Group C and D locations
where flammable gases or vapors
are present in sufficient quantities to
produce explosive or ignitable mix-
tures. The Group C and D classifica-
tion specifies hazardous atmos-
pheres containing either flammable
gases or vapors of flammable liquids
(see NFPA 497 and NFPA 325).

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General Specifications
SAFE-T S10
Stirrer for Hazardous Locations
Model # S108525
Class I
Division 1
Groups C and D
Dimensions:
Top Plate 10.5” x 10.5” (26.7 x 26.7 cm)
Overall (W x H x D) 11.0” x 8.13” x 14.5” (27.9 x 20.8 x 36.8 cm)
Weight 27 lb. (12.2 kg)
Electrical Ratings:
Volts 100—120
Amps .6
Watts 70
Phase 1
Frequency 60
Stirring Speed (rpm) 60-1200
Environmental Conditions
Operating: 17°C to 27°C (63°F to 81°F); 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.
Main Supply Voltage
Maximum Fluctuation: 10%
Storage: -25°C to 65°C (63°F to 149°F); 10% to 85% relative humidity.

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Site Selection
Install the SAFE-T S10 Stirrer on a level, sturdy
surface and allow space for ventilation.
The electrical specifications are located on the
back of the stirrer. Consult Barnstead
International if your electrical service is different
than that listed on the specification plate.
Your SAFE-T S10 Stirrer is designed for perma-
nent installation. Permanent installation is made
possible with integral mounting lugs and
1/2” (1.3 cm) conduit with 18” (45.7 cm) of lead
wire provided. The wooden shipping support
must be removed from the bottom of the stirrer
prior to permanent field installation.
Leads are factory sealed to meet the require-
ments of Article 501 of the National Electrical
Codes (NEC). The SAFE-T S10 Stirrer must be
hardwired per NEC (USA) or CEC (Canada)
requirements.
An external switch or circuit breaker needs to be
included in the building installation in close prox-
imity of the unit as a means to disconnect supply
circuit. Overcurrent protection devices should be
included in the installation. The unit can be con-
nected to a branch circuit not exceeding 20
Amps.
The stirrer installation must conform with installa-
tion requirements for electrical equipment intend-
ed for use in Class I, Group C and D hazardous
locations as defined by the NEC and electrical
code requirements of your area.
Installation
Caution
To reduce the risk of fire or explo-
sion, do not install where the
marked operating temperature
exceeds the ignition temperature of
the hazardous atmosphere(s).
Warning
To avoid electrical shock this stirrer
must be installed by a competent,
qualified electrician who is familiar
with installing explosion-proof electri-
cal equipment and ensures compati-
bility among the stirrer specifica-
tions, power source and grounding
requirements. Grounding require-
ments for hazardous areas are
specified in Article 501 (and Article
250) of the National Electrical Code.
Consult local electrical code require-
ments also. All units are provided
with an equipment grounding lead
that should be used as the primary
equipment ground connection for the
unit.

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Stirring Speed Specifications
Speed range : 60 to1200 rpm
(Maximum speed is dependent on the viscosity
of the solution.)
Stability of the stirring speed setting (4 liter
flask with 2,000 ml water): ± 3 rpm
Max. recommended flask size: 4 liters.
Setting the Stirring Speed
Dial (Power) Switch The power for the stirrer
is turned ON or OFF by means of the stir dial
switch. The power for the stirrer is ON when
the stir dial is turned clockwise past the zero
“OFF” mark (0). To set the stir control to the
desired stirring speed, turn the dial switch
clockwise until the dial pointer is aligned with
the selected dial mark (rpm’s). The dial marks
indicate approximate stirring speed in rpm’s (±
20 rpm).
Stirring Speed Guide
(All stirring speed measurements made at
21.5°C)
Operation
*Maximum speed obtained without the stir bar losing coupling with the magnet in
the SAFE-T S10.
Unit Flask Stir Bar Amount of Viscosity Maximum*
S108525 1 liter 2” 600 ml water 1,200 rpm
S108525 1 liter 2” 600 ml corn oil 1,200 rpm
S108525 1 liter 2” 600 ml 30 wt. motor oil 950 rpm
S108525 500 ml 2” 350 ml 1,265 centipose 400 rpm
viscosity std.
S108525 1 liter 2” 350 ml corn syrup 70 rpm
(light)
Warning
Due to the nature of this product, operator
safety will be endangered should mainte-
nance or servicing be performed on it. If
maintenance or servicing is needed, the
stirrer must be returned to the factory.
Caution
Maximum load of the top plate is 25 lb.
(11.3 kg).
Caution
The ceramic top plate may scratch. Wipe
the top plate with water only, using a light-
ly dampened non-abrasive cloth.
Note
Dial marks for speed control knob set-
tings are for reference only.

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OPERATION
Overcurrent Protection
The stirring motor in the SAFE-T S10 is equipped
with an overcurrent protection device. In the
event that this device would be activated, the stir-
ring motor will shut off. To reset the motor:
1. Turn the unit off at both the dial (power)
switches and at the external circuit
breaker.
2. Allow the unit to cool.
3. Turn the external circuit breaker back
on. If the overcurrent protection device
is repeatedly activated during normal op-
erating conditions, return the unit to the
factory.
Warning
To prevent ignition of hazardous atmos-
pheres, the aluminum explosion-proof
enclosure chambers must be kept closed
(screws securely tightened) whenever
the unit is in operation and/or connected
to power supply circuit.
Warning
To prevent ignition of hazardous atmos-
pheres, do not use any accessory electri-
cal equipment with this unit unless it is
certified for operation in the same haz-
ardous environment.

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Maintenance and Servicing
Due to the nature of this product, operator safety
will be endangered should maintenance or ser-
vicing be performed on it by the operator. The
unit does not contain operator serviceable parts.
If maintenance or servicing is needed, the stirrer
must be returned to the factory. Disconnect the
unit from the supply circuit and any installation
mountings and call Barnstead International cus-
tomer service (1-800-553-0039 or 1-563-556-
2241).
General Cleaning Instructions
Wipe exterior surfaces with a slightly dampened
cloth containing a mild soap solution.
Caution
To reduce the risk of the ignition, any
repairs made to this product are to be
made by the manufacturer.

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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 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 Goods
Authorization” number (RGA). Material
Returned without an RGA number will be
returned.

One Year Limited Warranty
Barnstead International (“BARNSTEAD”) warrants that 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 representa-
tive, (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: [phone] or 800-553-0039
Fax: [phone]
E-mail: [email protected]
www.barnstead.com