Labconco 2127603 User Manual

User’s Manual

Two and Six-Place (Macro) Kjeldahl
Distillation Systems

Models
2128501
2127601
2127602
2127603

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Labconco Corporation
8811 Prospect Avenue
Kansas City, MO 64132-2696
800-821-5525, 816-333-8811
FAX [phone]
E-MAIL [e-mail]
HOME PAGE www.labconco.com

Please read the User’s Manual before operating the equipment.

Copyright © 2011, 2013 Labconco Corporation. All rights reserved.

The information contained in this manual and the accompanying products are copyrighted and all
rights reserved by Labconco Corporation. Labconco Corporation reserves the right to make periodic
design changes without obligation to notify any person or entity of such change.

Warranty

Labconco provides a warranty on all parts and factory workmanship. The warranty includes areas of
defective material and workmanship, provided such defect results from normal and proper use of the
equipment.

The warranty for all Labconco products will expire one year from date of installation or two years
from date of shipment from Labconco, whichever is sooner, except the following;

• Purifier® Logic® Biological Safety Cabinets and PuriCare® Lab Animal Research Stations

carry a three-year warranty from date of installation or four years from date of shipment from
Labconco, whichever is sooner.

• SteamScrubber® & FlaskScrubber® Glassware Washers carry a two-year warranty from date

of installation or three years from date of shipment from Labconco, whichever is sooner.

• Blood Drawing Chairs carry a ten year warranty.

• Carts carry a lifetime warranty.

• Glassware is not warranted from breakage when dropped or mishandled.

This limited warranty covers parts and labor, but not transportation and insurance charges. In the
event of a warranty claim, contact Labconco Corporation or the dealer who sold you the product. If
the cause is determined to be a manufacturing fault, the dealer or Labconco Corporation will repair or
replace all defective parts to restore the unit to operation. Under no circumstances shall Labconco
Corporation be liable for indirect, consequential, or special damages of any kind. This statement may
be altered by a specific published amendment. No individual has authorization to alter the provisions
of this warranty policy or its amendments. Lamps and filters are not covered by this warranty.
Damage due to corrosion or accidental breakage is not covered.

Returned or Damaged Goods

Do not return goods without the prior authorization from Labconco. Unauthorized returns will not be
accepted. If your shipment was damaged in transit, you must file a claim directly with the freight
carrier. Labconco Corporation and its dealers are not responsible for shipping damages.

The United States Interstate Commerce Commission rules require that claims be filed with the
delivery carrier within fifteen (15) days of delivery.

Limitation of Liability

The disposal and/or emission of substances used in connection with this equipment may be governed
by various federal, state, or local regulations. All users of this equipment are required to become
familiar with any regulations that apply in the user’s area concerning the dumping of waste materials
in or upon water, land, or air and to comply with such regulations. Labconco Corporation is held
harmless with respect to user’s compliance with such regulations.

Contacting Labconco Corporation

If you have questions that are not addressed in this manual, or if you need technical assistance, contact
Labconco’s Customer Service Department or Labconco’s Product Service Department at 1-800-821­5525 or 1-816-333-8811, between the hours of 7:00 a.m. and 6:00 p.m., Central Standard Time.

Part # 2081402, Rev. A

ECO H435

T

AABBLLEE

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CHAPTER 1: INTRODUCTION 1
Components Shipped 1
General Description 2
Performance 3
Component Identification 3

CHAPTER 2: INSTALLATION 5
General Installation Notes 5
Location 5
Electrical 6
Tap Water Supply 7
Distillation Manifold 7
Glassware Installation 8

CHAPTER 3: NORMAL OPERATION & ROUTINE

Normal Operation Start-Up 9
Clean-Up and Cosmetic Guidelines 10

APPENDIX A: REPLACEMENT PARTS 11

APPENDIX B: DIMENSIONS & AIRFLOW REQUIREMENTS 13

APPENDIX C: TOTAL KJELDAHL NITROGEN METHOD 14

O

O

MAINTENANCE 9

FF

C

C

OONNTTEENNTTSS

CChhaapptteerr 11::
IInnttrroodduuccttiioonn

Components Shipped

Carefully check the contents of your Two-Place or Six-Place Kjeldahl
Distillation System for shipping damage while it is still on the shipping
pallet. Do not discard the packaging material until the contents have been
checked and the equipment has been approved for installation.

The Two-Place or Six-Place Kjeldahl Nitrogen Distillation System has been
shipped in one complete crate to minimize damage that may occur in transit.

Make sure to inspect the product thoroughly prior to installation and report
any damage that may have occurred in transit (see Warranty page for
instructions).

Product Service 1-800-522-7658

1

Chapter 1: Introduction

General Description

Labconco’s Two and Six-Place (Macro) Kjeldahl Distillation Systems are
designed to facilitate the determination of Total Nitrogen content within
materials such as feeds, grains, soils, fertilizers, plant tissue, water, organic
wastes, and food products. The expression ‘Macro’ identifies the size of
sample vessel and the sample size that can be used with this equipment.
Other Kjeldahl systems are available, which use smaller sample vessels and
require smaller sample sizes. This apparatus can be used for the distillation of
all types of nitrogen containing samples. The Two and Six-place Distillation
Systems can be used to perform a standardized Macro-Kjeldahl Nitrogen
Determination Method.

The Kjeldahl Distillation Systems are not enclosed, excess heat and personnel
safety during the distillation reaction must be considered when selecting an
installation location. The Kjeldahl Distillation Method is a ‘Closed
Distillation,’ no chemical fumes are released during the procedure. The
Distillation procedure does involve boiling concentrated sodium hydroxide at
high temperatures. Labconco recommends placing Two and Six-Place
Distillation Systems inside a chemical fume hood for safety. Labconco
recommends a splash shield be placed in front of the Distillation Systems if
they are installed on the open lab bench.

2128501 & 2127601 Two-Place and Six-Place Kjeldahl Distillation Systems

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Product Service 1-800-522-7658

Chapter 1: Introduction

Performance

The Two and Six-Place Kjeldahl Distillation Systems have been designed for
use in the determination of nitrogen (or ammonia) concentrations. By
calculation, nitrogen can be converted to protein values for products such as
plant tissues, meats and other food substances. Nitrogen determinations with
the (Macro) Distillation Systems can accommodate sample sizes up to 300­400 mls, due to the size of the distillation flasks. Detailed procedures
developed by professional laboratory organizations such as American
Association of Analytical Chemists (AOAC) and American Association of
Cereal Chemists (AACC) should always be consulted for step by step
analytical procedures when operating this equipment. For methodology
precision and accuracy please consult the specific published method for the
type of sample or substance that will be analyzed.

Component Identification

1. Electric Heaters. 600-watt heaters are used in the distillation rack of the

units. Infinite control switches regulate each of the heaters. The curved
heater elements are provided and allow for the round base of the Kjeldahl
flasks, providing faster and more evenly distributed heat. All heaters and
temperature controllers are wired to a common subpanel electrical box,
for easy electrical connection to a facility electrical circuit.

2. Temperature Gauge. The condensation rack behind the distillation

heating elements requires cooling water. The temperature of the
distillation cooling water on the Six-Place Distillation System can be
adjusted to promote condensation and suit individual requirements with
the flow control valve handle, located below the distillation heaters.
Water temperature is indicated on the thermometer, which is located at
the water outlet of the distillation manifold. The Two-Place Distillation
Systems does not feature a flow control valve or temperature gauge. The
cooling water connections are 3/4" NPT and the supply line should be
1/2" minimum for proper water flow through the unit. For facilities where
the ground water temperature exceeds 80°F, a recirculation water chiller
system will be required to achieve sufficient condensation results.

3. Distillation Condensation Manifold. Epoxy coated steel outer columns

with stainless steel inner condensation columns provide long life.

Product Service 1-800-522-7658

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Chapter 1: Introduction

2

1

4

Product Service 1-800-522-7658