Labconco CentriVap 73100 Series User manual

CentriVapRefrigerated
Centrifugal Concentrators
Models
73100 Series

Copyright © 2018 Labconco Corporation. 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.
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 1-800-821-5525
or 1-816-333-8811, between the hours of 7:30 a.m. and 5:30 p.m., Central Standard Time.
Part #7310605, Rev. G
ECO L447
Warranty
Labconco Corporation provides a warranty to the original buyer for the repair or replacement of parts and
reasonable labor as a result of normal and proper use of the equipment with compatible chemicals. Broken
glassware and maintenance items, such as filters, gaskets, light bulbs, finishes and lubrication are not
warranted. Excluded from warranty are products with improper installation, erratic electrical or utility supply,
unauthorized repair and products used with incompatible chemicals.
The warranty for CentriVap®Refrigerated Centrifugal Concentrators will expire one year from date of
installation or two years from date of shipment from Labconco, whichever is sooner. Warranty is non-
transferable and only applies to the owner (organization) of record.
Buyer is exclusively responsible for the set-up, installation, verification, decontamination or calibration of
equipment. This limited warranty covers parts and labor, but not transportation and insurance charges. If the
failure is determined to be covered under this warranty, the dealer or Labconco Corporation will authorize
repair or replacement of all defective parts to restore the unit to operation. Repairs may be completed by 3rd
party service agents approved by Labconco Corporation. Labconco Corporation reserves the rights to limit this
warranty based on a service agent’s travel, working hours, the site’s entry restrictions and unobstructed access
to serviceable components of the product.
Under no circumstances shall Labconco Corporation be liable for indirect, consequential, or special damages
of any kind. This warranty is exclusive and in lieu of all other warranties whether oral, or implied.

TABLE OF CONTENTS
CHAPTER 1: INTRODUCTION 1
Safety Symbols 2
CHAPTER 2: PREREQUISITES 3
Electrical Requirements 3
Location and Exhaust Requirements 4
Vacuum Pump Requirements 4
Vacuum Line Traps 5
Space Requirements 5
CHAPTER 3: GETTING STARTED 6
Unpacking Your CentriVap 7
CentriVap Components 7
Emergency Access Into the Chamber 8
Component Orientation & Hose Connections 9
Electrical Connection 10
Rotor Installation 10
Chemical Resistance of CentriVap Components 10
Solvent Safety Precautions 12
CHAPTER 4: USING YOUR CENTRIVAP 14
Planning 14
Glassware Selection 15
Loading Glassware into the CentriVap 15
Temperature Setting Guidelines 15
Time Setting Guidelines 15
CentriVap Controls 15
Operating the CentriVap Controls 16
Operating the CentriVap 17
Operational Note 18
Cycle Interruption 18
Safety Precautions 19

CHAPTER 5: MAINTAINING YOUR CENTRIVAP 20
CHAPTER 6: ACCESSORIES FOR YOUR CENTRIVAP 22
Installing a Glass Lid 24
Installing a Vacuum Gauge 24
Installing a CentriZap Strobe Light 25
CHAPTER 7: TROUBLESHOOTING 26
APPENDIX A: CENTRIVAP COMPONENTS 29
APPENDIX B: CENTRIVAP DIMENSIONS 31
APPENDIX C: CENTRIVAP SPECIFICATIONS 32
Electrical Specifications 32
Environmental Conditions 33
Evaporation Rates 34

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Chapter 1:
Introduction
Congratulations on your purchase of a Labconco CentriVap Refrigerated
Concentrator. Models are available for operation on 115V or 230V.
The CentriVap Refrigerated Concentrator, when combined with the CentriVap
Cold Trap, uses centrifugal force and vacuum with or without heat to rapidly
evaporate and condense solvents from biological and analytical samples.
Centrifugation eliminates bumping and foaming as vacuum is applied and also
concentrates the solute in the bottom of the vial. This allows recovery of solutes
from sample volumes as small as a few microliters. The unique advantage of this
concentrator is that it may be cooled to -4°C to prevent damage to heat labile
samples. For faster evaporation, the concentrator is equipped with a 300 watt
heater to warm the chamber during processing. The concentrator may be placed
on a benchtop or other laboratory work surface.
The microprocessor, which controls the operation of the heater and the motor,
provides excellent regulation and reproducibility of protocols. The end of the run
can be signaled by a manually preset timer. Nine different protocols can be stored
in memory so exact test parameters can be easily repeated.
As the companion to the Concentrator, the CentriVap Cold Trap protects the
vacuum pump by trapping moisture, vapors and corrosive fumes as they evaporate
from the samples.

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Safety Symbols
Your Refrigerated CentriVap Concentrator was designed with safety in mind,
however conditions may exist that could be hazardous.
Throughout this manual potentially hazardous conditions are identified using the
following words and symbols.
It is important that you understand the warnings listed throughout this manual
before you operate the CentriVap Concentrator.

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Chapter 2:
Prerequisites
Before you install your CentriVap Refrigerated Concentrator, you need to prepare
your site for installation. You must be certain that the area is level and of solid
construction. In addition, a means to exhaust the vacuum pump must be provided.
An electrical source must be located near the installation site.
Carefully read this chapter to learn:
The electrical supply requirements.
The exhaust requirements.
The vacuum pump requirements.
Refer to Appendix C: CentriVap Refrigerated Concentrator Specifications for
complete electrical and environmental conditions, specifications and requirements.
Electrical Requirements
The CentriVap Refrigerated Concentrator requires a dedicated grounded electrical
outlet. This outlet requires a 20 Amp circuit breaker or fuse for models rated at 115V
(60 Hz). An 8 Amp circuit breaker or fuse is required for models rated at 230V
(50/60 Hz). 115V models are equipped with a 20 Amp NEMA 5-20P plug. 230V
models are available with either a NEMA 6-20P plug for use in the United States or a
PS1363 plug for use in the UK or a CHI-10P plug for use in China or a CEE7/7 plug
for use in the EU. If this does not match with the available receptacle, remove this
plug and replace it with an approved plug of the suitable style.
It is recommended that an emergency switch for disconnecting the mains in the
case of a malfunction is located remote from the CentriVap. It should be outside
the room in which the CentriVap is housed, or adjacent to the exit from that room.

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Location and Exhaust Requirements
The CentriVap Concentrator should be located on a surface that is stable, flat and level.
WARNING: The CentriVap System should be located within a fume hood if
hazardous or flammable solvents are used. Heating of materials could lead
to the liberation of hazardous gases. In all cases, regardless of the solvent
used, it is strongly recommended that the vacuum pump is vented in a fume
hood. An accessory secondary trap is available to minimize the exhausting of
solvents into the atmosphere. This does not, however, negate the need to
exhaust the vacuum pump into a fume hood. Failure to properly vent the
CentriVap will expose personnel to potentially harmful chemicals.
The CentriVap Refrigerated Concentrator has not been evaluated by an
approval agency for the use of biological, radio toxins or flammable liquids
or materials.
Vacuum Pump Requirements
A vacuum pump must be provided by the user. A vacuum pump with a free air
flow rate of 90 liters per minute and 2 x 10-4 mBar ultimate pressure is adequate
for aqueous samples. More volatile samples can be satisfactorily processed using
a diaphragm pump with a free airflow of 75 liters per minute and 2 mbar vacuum.
The inlet fitting on the vacuum pump must be suitable for 0.50 ID hose.
Vacuum pumps used with 115V models should be equipped with a 115V, 15 Amp
NEMA 5-15P plug. Vacuum pumps used with 230V models should be equipped
with a “reverse” IEC 320 plug. This will allow the vacuum pump to be plugged
into the receptacle on the back of the CentriVap.
IMPORTANT NOTE: To ensure that aggressive samples used in the
CentriVap Refrigerated Concentrator do not damage the vacuum pump, it is
recommended that all internal wetted parts are PTFE or PTFE coated.

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When selecting the vacuum pump it is very important to consider the
flammability of the solvent that will be used. If the solvents are flammable,
an explosion-proof vacuum pump or one suitable for the solvents to be
processed is recommended. See Chapter 3 Solvent Safety Precautions for
solvents suitable for use in the CentriVap.
Vacuum Line Traps
When using a mechanical pump that is not corrosion resistant, the CentriVap Cold
Trap or equivalent trap must be used in the vacuum line to prevent damage from
solvent vapors. When evaporating acids, it is advisable to include an acid
secondary trap in the vacuum line. This adds additional protection for the pump.
NOTE: Several components within the CentriVap Refrigerated
Concentrator are made from stainless steel or aluminum and can be
degraded if exposed to acids. Contact Labconco before evaporating acids.
A moisture trap, solvent trap and radioisotope trap are also available. Refer to
Chapter 6: Accessories for Your CentriVap for ordering information.
Space Requirements
Refer to Appendix C: CentriVap Refrigerated Concentrator Specifications for
dimensional drawings of the CentriVap.
No person or any hazardous material should be within 12 inches of the CentriVap
Concentrator while it is operating.

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Chapter 3:
Getting Started
Now that the site for your CentriVap is properly prepared, you are ready to
unpack, inspect, install, and test your CentriVap. Read this chapter to learn how
to:
Unpack and move your CentriVap.
Set up your CentriVap.
Connect the electrical supply source to your CentriVap.
Properly exhaust your CentriVap.
Safely use solvents with your CentriVap.
CAUTION: The CentriVap Refrigerated Concentrator weighs over 95 lbs.
(43 Kg). The carton allows for lifting with a mechanical lift truck or hand
truck. If you must lift the CentriVap manually, use at least two (2) persons
and follow safe lifting guidelines.

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Unpacking Your CentriVap
Carefully unpack your CentriVap and inspect it for damage that may have
occurred in transit. If your CentriVap is damaged, notify the delivery carrier
immediately and retain the entire shipment intact for inspection by the carrier.
The United States Interstate Commerce Commission rules require that claims be
filed with the delivery carrier within fifteen (15) days of delivery.
Do not discard the carton or packing material for your CentriVap until you have
checked all of the components and installed and tested the CentriVap.
NOTE: Do not return goods without the prior authorization of Labconco.
Unauthorized returns will not be accepted. If your CentriVap was damaged
in transit, you must file a claim directly with the freight carrier. Labconco
Corporation and its dealers are not responsible for shipping damage.
CentriVap Components
As previously mentioned, the CentriVap System is available in 115V or 230V.
Locate the model of CentriVap you received in the following table. Verify that
the components listed are present.
Catalog #
Product Description
7310020
CentriVap Refrigerated Concentrator –115V/60Hz with Acrylic Lid –US
7310021
CentriVap Refrigerated Concentrator –115V/60Hz with Glass Lid –US
7310022
CentriVap Refrigerated Concentrator –115V/60Hz Acid Resistant –US
7310030
CentriVap Refrigerated Concentrator –230V/50Hz with Acrylic Lid –EU
7310031
CentriVap Refrigerated Concentrator –230V/50Hz with Glass Lid –EU
7310032
CentriVap Refrigerated Concentrator –230V/50Hz Acid Resistant –EU
7310034
CentriVap Refrigerated Concentrator –230V/50Hz Acid Resistant –UK
7310035
CentriVap Refrigerated Concentrator –230V/50Hz with Acrylic Lid –UK
7310036
CentriVap Refrigerated Concentrator –230V/50Hz with Glass Lid –UK
7310037
CentriVap Refrigerated Concentrator –230V/50Hz with Acrylic Lid –China
7310038
CentriVap Refrigerated Concentrator –230V/50Hz with Glass Lid –China
7310039
CentriVap Refrigerated Concentrator –230V/50Hz Acid Resistant –China
7310040
CentriVap Refrigerated Concentrator –230V/60Hz with Acrylic Lid –US
7310041
CentriVap Refrigerated Concentrator –230V/60Hz with Glass Lid –US
7310042
CentriVap Refrigerated Concentrator –230V/60Hz Acid Resistant –US

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Plus the following:
Part #
Component Description
7310605
User’s Manual
1336400
1332700
1332600
1338000
1336100
Power Cord –115V –US
or
Power Cord –230V –China
or
Power Cord –230V –UK
or
Power Cord –230V –US
or
Power Cord –230V –EU
7828606
Tubing
1488800
Clamp (2)
7397601
7396206
Coupling Insert
or
Coupling Inert –Acid Resistant
If you do not receive one or more of the components listed for your CentriVap,
contact Labconco Corporation immediately for further instructions.
Emergency Access into the Chamber
The CentriVap is designed to prevent access to the chamber in the event of a
power disruption. If it is necessary to open the lid when there is no electrical
power connected to the CentriVap, insert a small screwdriver or similar
instrument into the small round hole on the left side of the case behind the control
panel. This will unlock the lid latch mechanism. While holding the screwdriver
in place, raise the lid with the other hand.
CAUTION: Never attempt to defeat the latch or open the lid while the
CentriVap is running. Personnel injury can result from moving parts and
chemicals.

Chapter 3: Getting Started
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Component Orientation & Hose
Connections
The relative position of the
CentriVap, Cold Trap and
Vacuum Pump should be as
shown to optimize the air flows of
the refrigeration systems. There
must be at least 6 inches between
the Refrigerated CentriVap and
the Cold Trap. More space is
better. There must be at least 3
inches between the back of the
refrigerated CentriVap and the
adjacent wall surface. Restriction
of the airflow through the cabinet
during operation could adversely
affect performance.
After positioning the components, it is necessary to join the system together using
the hoses provided. Attach one hose to the tube that extends out the back of the
Concentrator. Attach the other end of this hose to one of the barb fittings on the
Cold Trap Cover. Secure the hoses with the clamps supplied. Attach another hose
to the remaining barb fitting on the Cold Trap Cover and clamp securely. If the
accessory Secondary Trap is not used, attach the other end of the hose to the inlet
port on the vacuum pump. If the accessory Secondary Trap is used, install the
Secondary Trap as explained in Chapter 6: Accessories for Your CentriVap. Then
attach the hose from the Cold Trap Cover to the “out” connector on the Secondary
Trap and clamp securely. Attach another hose from the remaining connector on the
Secondary Trap to the inlet port on the vacuum pump and clamp securely.
WARNING: It is recommended that the CentriVap be located inside a fume
hood or other laboratory ventilation device if hazardous solvents are used in
the CentriVap. If this is not possible, the vacuum pump should be located
inside a hood or should have a hose attached to the exhaust port and the other
end of the hose should be positioned inside the fume hood or ventilation device.

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Electrical Connection
Plug the power cord into the receptacle on the back of the CentriVap Concentrator
and plug the other end into a suitable power receptacle. Plug the power cord into the
receptacle on the back of the CentriVap Cold Trap and plug the other end into a
suitable power receptacle. Plug the power cord from the vacuum pump into the
receptacle on the back of the Concentrator. If the vacuum pump has an off/on switch,
turn the switch ON. The vacuum pump will be controlled by the Concentrator.
Rotor Installation
Place the rotor onto the shaft of the Concentrator. Rotate the rotor slightly to
engage the drive pin in the shaft with the slots in the rotor hub. The top of the
shaft should be in line with the top of the rotor hub.
IMPORTANT NOTE: Do not use a rotor if it shows any signs of damage.
Failure of a spinning rotor could damage the CentriVap or cause samples to
be lost.
Chemical Resistance of CentriVap
Components
Your CentriVap Centrifugal Concentrator and Cold Trap are designed to be
chemical resistant to most compounds that are commonly used in concentration
processes. However, by necessity, the CentriVap is comprised of a number of
different materials, some of which may be attacked and degraded by corrosive
chemicals. The degree of degradation is obviously dependent on the concentration
and duration of exposure. Some major components of the CentriVap that are
susceptible to degradation are as follows:

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Acid Resistant models have a number of enhancements to minimize chemical
attack on components. The lid is glass, the chamber and rotors are PTFE coated,
the rotor shaft is Hastelloy, bearing are stainless steel and the coupling insert is
polypropylene, and all wetted parts in the vacuum release valve are made from
PTFE. Even though parts in the Acid Resistant models are considerably more
resistant to corrosion, it is very important that the CentriVap is immediately
cleaned and neutralized.
If a rotary vane vacuum pump is used, frequent oil changes are required.
Most compounds used in the CentriVap will degrade the oil if allowed to
enter to pump.
Acids
Acids
Bases Solvents
Bases Solvents
COMPONENT MATERIAL
Acetic Acid 20%
Boric Acid
Formic Acid
Hydrobromic Acid 20%
Hydrochloric Acid 20%
Nitric Acid 20%
Sulfuric Acid 10%
Trifluoroacetic Acid (TFA)
Ammonium Hydroxide
Acetone
Acetonitrile
Chloroform
Dimethyl Formamide
Dimethyl Sulfoxide (DMSO)
Ethanol
Ethyl Acetate
Hexanes
Isoproponal
Methanol
Methylene Chloride
Methyl t-Butyl Ether (MTBE)
Toluene
Water
Standard
CentriVap
Lid Acrylic C D C D D D D C D D C D D
Bearings High Carbon Steel D D D D D D D D D D D
Lid Gasket EPDM D D D D D C C D
Rotor Shaft Stainless Steel D D D
Valve Stainless Steel D D D
O Rings Viton (Fluorocarbon) C C C D C
Fittings Polypropylene D C
Rotor Anodized Aluminum D D
Rotor Hub Acetal (Delrin) C C C D D D C D C
Tubing PVC D C D D D D D D D C D D D D
Acid Resistant
CentriVap
Chamber Teflon coated Aluminum
Lid Glass
Bearings Stainless Steel D D D
Lid Gasket EPDM D D D D D C C D
Rotor Shaft Hastelloy
Valve Teflon D
O Rings Viton (Fluorocarbon) C C C D C
Fittings Polypropylene D C
Rotor Teflon coated Aluminum
Rotor Hub Polypropylene D C
Tubing PVC D C D D D D D D D C D D D D
Cold Trap -50°C
Chamber Stainless Steel D D D
Lid Acrylic C D C D D D D C D D C D D
Cold Trap Gasket Neoprene D D C D D C D D D D D C D
Cold Trap -84°C
& -105°C
Chamber Stainless Steel D D D
Lid Stainless Steel D D D
Cold Trap Gasket Neoprene D D C D D C D D D D D C D
C- Moderate Degradation- Questionable use
D- Severe Degradation- Infrequent use recommended- immediate thorough cleaning required
Epoxy coated Aluminum
Chamber
C
D
C
D

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Diaphragm vacuum pumps sold by Labconco have wetted parts either made
from PTFE or protected by PTFE coatings and are suitable for nearly all
procedures.
When using compounds in the CentriVap that are hostile to the materials of
construction, it is imperative that the equipment is appropriately maintained.
After each run, clean up all residues, spills and materials that might have
splashed in the chamber.
Drain the Cold Trap immediately after the collected ice is melted to prevent
corrosive liquids from residing in the trap. Flush out the trap with water after
draining.
DO NOT chip ice off the Cold Trap walls as damage may occur.
DO NOT start a rotary vane pump when the Cold Trap contains any liquid.
The liquid will be drawn into the pump and will contaminate the vacuum
pump oil.
If the compounds used attack acrylic, consider using the optional glass
chamber lid. See Chapter 6: Accessories for Your CentriVap.
If the compounds used attack stainless steel, consider using the optional
Glass Trap insert in the Cold Trap. See Chapter 6: Accessories for Your
CentriVap.
When using a rotary vane vacuum pump the oil in the pump should be
checked often. It must be changed if it is cloudy, shows particles or is
discolored. The useful life of vacuum pump oil can be extended if the
vacuum pump is operated for an extended period of time after the CentriVap
run is over. This allows contaminants to be purged from the hot oil. This
must be done with the inlet to the pump blocked off to prevent air from free
flowing through the pump. Close the lid and press the RUN button. If the
pump is operated at an elevated vacuum level, oil will be expelled from the
pump and damage will occur.
If optional secondary traps are used, monitor their condition often and
replace them when they are saturated. A new acid trap is off-white and
changes color to purple when used up. A new moisture trap is blue and
changes color to pink when used up. The solvent trap molecular sieve does
not change color when saturated so extra care must be taken to determine
when a replacement cartridge should be installed.
Solvent Safety Precautions
CAUTION: The CentriVap is not classified as “explosion proof.” It has
been designed with safety as a primary consideration and should be used in a
prudent manner using “good laboratory practices.” It has been designed
for use with compounds as described in the United States National Electrical
Code Class I, Group D. The heater may be programmed to run as hot as
100°C, however, the heater element may normally run at 110°C. A thermal
fuse limits the heater to a maximum temperature of 141°C. It is important

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that the solvents used are compatible with these temperatures. Do not
evaporate solvents that have an autoignition temperature below 180°C. Do
not evaporate solvents that are classified as Group A, B, or C by the
National Electrical Code. Evaporate only non-flammable or Group D
solvents with autoignition temperatures 180°C or above. Use of other
compounds could cause an explosion.
CAUTION: Solvents used in the CentriVap may be flammable or hazardous.
Use extreme caution and keep sources of ignition away from the solvents.
When using flammable or hazardous solvents, both the CentriVap and the
vacuum pump should be operated inside a fume hood.
If a sample is spilled in the chamber it must immediately be cleaned up.
Hazardous materials, such as strong acids or bases, radioactive substances
and volatile organics, must be handled carefully and promptly cleaned up if
spilled.
Do not store flammable or hazardous solvents within 12 inches (300 mm) of
the CentriVap.
IMPORTANT NOTE: The disposal of substances used in connection with
this equipment may be governed by various Federal, State or local
regulations. All users of this equipment are urged 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.

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Chapter 4:
Using Your CentriVap
Refrigerated Concentrator
After your CentriVap has been installed as detailed in Chapter 3: Getting Started,
you are ready to begin using your CentriVap. Read this chapter to learn how to:
Set operating parameters.
Operate the controls.
Properly select and position glassware inside your CentriVap.
Understand the display.
Interrupt a cycle after it has begun.
NOTE: See Appendix C: CentriVap Refrigerated Concentrator
Specifications for electrical requirements.
NOTE: Do not store or stack supplies or equipment on top of the CentriVap.
Planning
Thoroughly understand procedures and the equipment operation prior to
beginning work. The unique performance of the CentriVap is dependent upon the
proper balance of heat, vacuum and centrifugal force. If the proper balance is not
established, it is possible to damage or lose a portion of the sample. Therefore, if
you are unfamiliar with the CentriVap or are attempting a new protocol, it may be
helpful to make a trial run that is void of the sample you are attempting to
concentrate.

Chapter 4: Using Your CentriVap Refrigerated Concentrator
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Glassware Selection
Normally, sample tubes should be filled no more than approximately half full.
Select the size of the sample tube so it is compatible with the rotor and the desired
sample size. Tubes should not be excessively loose in the rotor. Rotors are
available with holes for various size tubes. Refer to Chapter 6: Accessories for
Your CentriVap for available rotor sizes.
Loading Glassware into the CentriVap
Smooth operation of the CentriVap is dependent upon proper balance of the
machine. Therefore, if less than a full load of samples is run, it is important to
load samples into the CentriVap in a fairly symmetrical manner distributing the
weight of the samples evenly in the sample rotor.
Temperature Setting Guidelines
The evaporation rate achieved by the CentriVap is dependent upon a variety of
factors. These include the nature of the solvent, the temperature and the pressure
in the vacuum system.
As a general guideline, to speed the evaporation process, the CentriVap
temperature should be set as high as possible as long as the temperature will not
damage the sample or cause the sample to bump.
Time Setting Guidelines
The Refrigerated CentriVap allows two different temperatures to be programmed
for user specified periods of time. If sequential temperatures are not desired, set
Time at 2 to “0”. When both programmed times expire, the rotor will stop, the
heater and refrigeration systems shut off, the vacuum pump stops and vacuum is
purged from the chamber. An alarm sounds until any control button is pressed.
CentriVap Controls
The control panel for the CentriVap is shown below with a description about its
function.

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1. Display –The liquid crystal display (LCD) shows set point parameters and
actual measured conditions.
2. Program Buttons –Used to initiate the start of a run with the use of just one
button.
3. Run/Stop Button –Press this to start or stop a run.
4. Preheat/Cool Button –Used to turn on the heater or refrigeration system to
heat or cool the chamber prior to loading samples.
5. Increase Button –When pressed, the last selected set point will increase.
6. Decrease Button –When pressed, the last selected set point will decrease.
7. Set Point Select Button –To select a parameter to change, press the select
button. Arrows on the display will point to the parameter that may be altered.
Operating the CentriVap Controls
Preheat/Cool:
To preheat or precool the chamber, press the “PREHEAT/COOL” button. The
display will show:
SP: XXX ACT: XXX
Press the increase or decrease button until the desired set point (SP) is displayed.
The actual chamber temperature, (ACT) is displayed to the right. When power is
being supplied to the heaters, a bar under the actual temperature will illuminate.
The chamber will continue to maintain the set point temperature until either the
“PREHEAT/COOL” button is pressed again or the “RUN” button is pressed.
Select existing program:
Operating parameters can be stored in memory so protocols can be repeated.
Nine programs can be stored. To select a program, press the set point “SELECT”
button until arrows point to the program number indicating that this set point can
be run or altered. To change the program number, press the increase or decrease
button until the desired program number is displayed. When the program number
is changed, all its set points change also to indicate the last entered parameters for
that program.
Store frequently run protocols in program 1, 2, or 3. Then, by pressing “PROG
1,” “PROG 2” or “PROG 3,” the stored program will be initiated without having
to press any other button. Pressing just the one button starts the rotor, the heater,
refrigeration system, the timers and the vacuum pump.
Change “Temperature” Set Points:
To change the “Temperature” set point, press the set point “SELECT” button until
arrows point to the “Temperature” set point, which can be changed from -4°C up
to 99°C by pressing the increase or decrease buttons. The set point is 100°C if the
display shows “HI.” The last entered set point is stored in memory.