Barnstead International 1085 Series Bedienungsanleitung

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

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

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

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

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).

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.

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.

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.

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.

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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