Cole-Parmer 281A Instruction Manual

Model 281A

Multipurpose Vacuum Ovens

105712 • 7006279 Rev. 1

Cole-Parmer

MANUAL NUMBER 105712 (7006279)

1 28624 5/10/12 Corrected model numbers above and on Performance Data page ccs

0 -- 3/31/10 Transfer to Marietta (was 105712 2/5/09) ccs

REV ECR/ECN DATE DESCRIPTION By

Preface

Vacuum Oven i

Models covered in this manual

Catalog number

Model number

Voltage

05017-00

6284

120V

05017-05

6279

230V

Cole-Parmerii Vacuum Oven

Preface

Important Read this instruction manual. Failure to read, understand and follow the instructions in this manual
may result in damage to the unit, injury to operating personnel, and poor equipment performance.

s

Caution All internal adjustments and maintenance must be performed by qualified service personnel. s

Material in this manual is for information purposes only. The contents and the product it describes are subject to
change without notice. Cole-Parmer makes no representations or warranties with respect to this manual. In no
event shall Cole-Parmer be held liable for any damages, direct or incidental, arising out of or related to the use of
this manual.

©2010 Cole-Parmer. All rights reserved.

Cole-Parmer Vacuum Oven iii

Preface

Important operating and/or maintenance instructions. Read the accompanying text carefully.

Potential electrical hazards. Only qualified persons should perform procedures associated with this
symbol.

Equipment being maintained or serviced must be turned off and locked off to prevent possible injury.

Hot surface(s) present which may cause burns to unprotected skin, or to materials which may be
damaged by elevated temperatures.

Marking of electrical and electronic equipment, which applies to electrical and electronic equipment
falling under the Directive 2002/96/EC (WEEE) and the equipment that has been put on the market
after 13 August 2005.

This product is required to comply with the European Union’s Waste Electrical & Electronic
Equipment (WEEE) Directive 2002/96/EC. It is marked with the WEEE symbol. Cole-Parmer has
contracted with one or more recycling/disposal companies in each EU Member State European
Country, and this product should be disposed of or recycled through them. Further information on
Cole-Parmer’s compliance with this directive, the recyclers in your country and information on Cole­Parmer products will be available at www.coleparmer.com.

4 Always use the proper protective equipment (clothing, gloves, goggles, etc.)

4 Always dissipate extreme cold or heat and wear protective clothing.

4 Always follow good hygiene practices.

4 Each individual is responsible for his or her own safety.

Cole-Parmeriv Vacuum Oven

Preface

Do You Need Information or Assistance

on Cole-Parmer Equipment?

The Cole-Parmer Instruments Sales Group can provide information on pricing and give you
quotations. We can take your order and provide delivery information on major equipment items or
make arrangements to have your local sales representative contact you.

1-800-323-4340 Cole-Parmer, Toll Free, US

Cole-Parmer Instruments Product Service Support can supply technical information about
proper setup, operation or troubleshooting of your equipment. We can fill your needs for
replacement parts or provide you with on-site service. We can also provide you with a quotation on
our Extended Maintenance Program for our products.

Whatever products you need or use, we will be happy to discuss your applications. If you are
experiencing technical problems, working together, we will help you locate the problem and, chances
are, correct it yourself...over the telephone without a service call.

When more extensive service is necessary, we will assist you with direct factory trained
technicians or a qualified service organization for on-the-spot repair. If your service need is covered
by the Cole-Parmer Instruments Products warranty, we will arrange for the unit to be repaired at our
expense and to your satisfaction.

Regardless of your needs, professional service technicians are available by telephone to assist
you concerning our products Monday through Friday from 8:00 a.m. to 6:00 p.m. Eastern Time.
Please call or fax us at:

1-800-323-4340 Toll Free U.S. and Canada
1-847-549-7600 Direct
1-847-549-7676 Fax

International customers, please contact your local Cole-Parmer Instruments distributor.

Vacuum Oven vCole-Parmer

Table of Contents

Performance and Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

The Appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

Operation in a Purged Atmosphere . . . . . . . . . . . . . . . . . . . . . . . . . .5-3

Operation in a Vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3

Operation in a Static Environment . . . . . . . . . . . . . . . . . . . . . . . . . .5-3

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3

Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Temp Controller or Heating Element Repl. . . . . . . . . . . . . . . . . . . .6-1

Seal Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Replacement Parts and Accessory Items . . . . . . . . . . . . . . . . . . . . . . . .7-1

Electrical Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1

Section 1

Section 2

Section 3

Section 4

Section 5

Section 6

Section 8

Section 7

Vacuum Oven 1-1Cole-Parmer

Section 1 Performance and Physical

Data

Performance Characteristics

Power requirements :

05017-00 (6284): . . . . . . .120V, 50/60Hz, 8.5A

05017-05 (6279): . . . . . .240V, 50/60 Hz, 4.2A

Power Input: . . . . . . . . . . . . . . . . . .1000 W max.

Temperature Range: . . . . . . . . .Ambient to 280°C

Control Sensitivity: . . . . . . . . . . . . . . . . . . .±1.0°C

Consistency: . . . . . . .±1.0°C (at ultimate vacuum)

Safety Differential: . . . . . . . . . . . . . . . . . . .~5.0°C

Vacuum Range: . . . . . . . . .Atmosphere to 30" Hg.

Pump-Down Time: . . . . . . . . . . . . . . . . . .6 Min.*

Vacuum Leak Rate: . . . . . .< 0.5” Hg per 24 hours

* Using a single-stage mechanical vacuum pump with a free air capacity of 35

liters per 1 minute.

Physical Data

Overall Dimensions: . . . .22-3/4H x 17-3/4D x 18W

Chamber Dimensions: . . 9-3/4H x 11-1/2D x 9-3/4W

Chamber Capacity: . . . . . . . . . . . . . . . .0.65 cu. ft

Shelf and Floor Area: . . . . . . . . .313 square inches

Shipping Weight (Pounds) . . . . . . . . . . . . . .90 lb.