Avatar FTIR Spectrophotometer Site preparation

The information in this publication is provided for reference only. All information contained in
this publication is believed to be correct and complete. Thermo Nicolet Corporation shall not be
liable for errors contained herein nor for incidental or consequential damages in connection with
the furnishing, performance or use of this material. All product specifications, as well as the
information contained in this publication, are subject to change without notice.
This publication may contain or reference information and products protected by copyrights or
patents and does not convey any license under the patent rights of Thermo Nicolet Corporation,
nor the rights of others. Thermo Nicolet Corporation does not assume any liability arising out of
any infringements of patents or other rights of third parties.
Thermo Nicolet Corporation makes no warranty of any kind with regard to this material,
including but not limited to the implied warranties of merchantability and fitness for a particular
purpose.
Copyright © 2002 by Thermo Nicolet Corporation, Madison WI 53711. Printed in the United
States of America. All world rights reserved. No part of this publication may be stored in a
retrieval system, transmitted, or reproduced in any way, including but not limited to photocopy,
photograph, magnetic or other record, without the prior written permission of Thermo Nicolet
Corporation.
For technical assistance, please contact:
Thermo Nicolet Corporation
5225 Verona Road
Madison WI 53711-4495
Telephone: 800-642-6538 or 608-276-6373
Fax: 608-273-6883
E-mail: techinfo@thermonicolet.com
OMNIC and Avatar are registered trademarks and Continuµm, Centaurµs, Snap-In, RSVP
and PLUS are trademarks of Thermo Nicolet Corporation.
Windows and Windows NT are registered trademarks of Microsoft Corp.
Intel and Pentium are registered trademarks of the Intel Corp.
PS/2 is a registered trademark of International Business Machines Corp.
Balston is a registered trademark of Parker Hannifin.
Freon and Teflon are registered trademarks of Du Pont.
Sound Blaster is a registered trademark of Creative Technology Ltd.
269-088604
Contents
Introduction ........................................................................................ 1
Questions and concerns ................................................................. 2
Location.............................................................................................. 3
System dimensions and weight...................................................... 5
External beam port .................................................................... 6
Sample compartment baseplate dimensions.............................. 7
Overall system dimensions and required clearances................. 8
Environmental Considerations ......................................................... 11
Temperature................................................................................. 11
Vibration...................................................................................... 11
Magnetic fields ............................................................................ 12
Dust and particulate matter.......................................................... 12
Humidity...................................................................................... 12
Static electricity ........................................................................... 13
Ventilation ................................................................................... 14
Utility Requirements ........................................................................ 15
Electrical requirements ................................................................ 15
Power line conditioning accessories ....................................... 16
Electrical service specifications .............................................. 16
Power consumption................................................................. 17
Telephone .................................................................................... 17
Modem line specifications ...................................................... 18
Wall jack specifications .......................................................... 18
Purge gas...................................................................................... 18
Installing purge gas fittings..................................................... 20
Purge gas generators ............................................................... 21
Pure air dryer........................................................................... 23
Liquid nitrogen ............................................................................ 26
Accessory Modules .......................................................................... 27
IR microscopes ............................................................................ 27
Continuµm microscope ........................................................... 28
Centaurµs microscope ............................................................. 29
Liquid Analysis System............................................................... 30
Minimum Computer Requirements.................................................. 35
Preinstallation Check List ................................................................ 37
Introduction
Thermo Nicolet’s Avatar® spectrometers are designed to be
extremely durable and reliable. They will work under adverse
conditions for extended periods; however, to best ensure accurate
results on a repeatable basis, you should maintain a stable working
environment.
Before installation, please read this manual and consider its points
for your system work space. Four major areas are covered in this
manual:
Location – Consult the dimensional drawings of the spectrometer
and accessories when planning the location of your system. Leave
extra space around the system for clearance and service access.
Environmental considerations – Avoid excessive static electricity,
temperatures, dust or particulate matter, vibration, magnetic fields
and humidity.
Utility requirements – Before the system arrives, it is important to
install any necessary utilities in the planned work space. You will
need electrical power. You may also need a telephone line, a source
of dry air or nitrogen, or a supply of liquid nitrogen, depending on
your system requirements.
Accessories – If you ordered any accessories, consult the appropriate
dimensional drawings to help plan the location of your system. Other
site preparation concerns are included in this part of the manual.
If you suspect that you cannot meet these optimal conditions or have
other concerns, contact Thermo Nicolet Customer Support for
assistance. In the U.S.A., call 1-800-642-6538 or 1-608-276-6373.
Outside the U.S.A., contact your local Thermo Nicolet office.
Preparing Your Site
1
Telephone numbers for all Thermo Nicolet service offices are
provided on the card that came in this kit.
Questions
and concerns
In case of emergency, if you have questions or concerns about safety
or operating the spectrometer, or if you need assistance with repairs
or replacement parts, contact Thermo Nicolet at the numbers listed
below. If you are outside the U.S.A., call your local sales or service
representative.
• Telephone (U.S.A.): 800-642-6538 or 608-276-6373
608-273-6883
• Fax:
• World Wide Web: http://www.thermo.com/nicolet
•
2
Thermo Nicolet
(Choose ABOUT US and then click the desired location under
“Contact Us” at the left side of the page.)
E-mail:
techinfo@thermonicolet.com
Location
Consider these points when planning the location of your system:
• If possible, choose a site easily accessible by Thermo Nicolet
personnel and have a telephone near the system. Should the
system require technical support, optional RSVP (Remote
Support and Verification Program) diagnostic support or service,
these measures will save time.
• An electrical power source must be nearby. The Avatar
spectrometer has a 2.1 m (7 ft) long power cord.
• The floor (and table or counter used for a work surface) should
be rigid to avoid vibration. Keep the spectrometer away from air
conditioners, refrigeration units and other machinery that may
vibrate the floor. While vibration will not damage the
spectrometer, it can compromise spectral quality and system
performance.
• Make sure the spectrometer and any accessories will fit in the
work space you choose. Compare the work space with the
dimensions shown in the next section and in the “Utility
Requirements” and “Accessory Modules” chapters.
-
Access covers must be able to open for maintenance and
service. There must be at least 64 cm (25 in) of clearance
above the table top to allow the sample compartment cover to
be opened fully. (Some accessories may require more
clearance.)
-
If possible, leave at least 30 cm (12 in) of clearance behind
the spectrometer and any accessory modules to allow service
access.
Preparing Your Site
3
-
If you use more than one table to support the spectrometer
and any accessory modules, the table tops must be the same
height; otherwise, the external beam port will not align.
-
Choose a table height that allows you to work comfortably
with the spectrometer. If you will be using a Thermo Nicolet
microscope accessory, keep in mind that the eyepiece will be
48 to 53 cm (19 to 21 in) above the table top.
• There are air vents on the back of the spectrometer and on the
power supply. Do not block the vents.
• The spectrometer’s external power supply must be placed in a
location where it will not be exposed to water or other liquids or
to excessive dust or particulate matter.
4
Thermo Nicolet
System
dimensions
and weight
Avatar spectrometers weigh about 24.3 kg (53.5 lb). They are
approximately 50 cm (20 in) wide by 59 cm (23 in) deep by 24 cm
(9.5 in) high (not including the optional sample compartment cover;
see the “Clearance needed above the spectrometer” illustration later
in this chapter).
24 cm
(9.5 in)
50 cm
(20 in)
59 cm
(23 in)
Avatar 370 dimensions
Preparing Your Site
5
External beam port
Note
The following illustration shows the location of the external beam
port on the right side of an Avatar spectrometer. See the on-line
Spectrometer Tour that you will receive with the spectrometer for
complete information about using this port.
The optional automated external beam mirror is required if you wish
to use the external beam port to create a beam path to a microscope
or other accessory. ▲
15 cm
(6 in)
30.5 cm
(12 in)
External beam port on right side of Avatar spectrometer
6
Thermo Nicolet
Sample compartment
baseplate dimensions
The following illustration shows the dimensions of the sample
compartment baseplate. See the on-line Spectrometer Tour and
Spectrometer Help Topics tutorials that you will receive with your
spectrometer for complete information about installing and using
Snap-In™ baseplates.
Clearance to sample compartment
cover is approx. 19 cm (7.5 in)
20.6 cm
(8 in)
25.2 cm
(10 in)
Sample compartment baseplate dimensions
The infrared beam is focused near the center of the sample
compartment, approximately 9 cm (3.5 in) above the top surface of
the baseplate. The beam diameter is approximately 7 mm at the
focus.
Preparing Your Site
7
Overall system
dimensions and
required clearances
Use the dimensions shown in the following illustrations to plan your
work space. A standard table depth of 76 cm (30 in) will
accommodate the spectrometer and any combination of accessories.
Avatar
Spectrometer
Computer
44 cm
(17 in)
50 cm
(20 in)
120 cm
(47 in)
Top views
Autosampler
Computer
PLUS 2
Avatar
Spectrometer
44 cm
(17 in)
61 cm
(24 in)
155 cm
(61 in)
Top views
8
Thermo Nicolet
24 cm
(9.5 in)
Avatar
Spectrometer
Continuµm
Microscope
Computer
76 cm
(30 in)
44 cm
(17 in)
50 cm
(20 in)
43 cm
(17 in)
98 cm
(39 in)
163 cm
(64 in)
Avatar
Spectrometer
Centaurµs
Microscope
Computer
66 cm
(26 in)
44 cm
(17 in)
50 cm
(20 in)
93 cm
(37 in)
36 cm
(14 in)
158 cm
(62 in)
Top views
Preparing Your Site
9
There must be at least 64 cm (25 in) of clearance above the table top
to allow access to internal parts during servicing and so that the
optional sample compartment cover can be fully opened.
64 cm
(25 in)
Clearance needed above spectrometer
10
Thermo Nicolet
Environmental Considerations
Environmental considerations include temperature, vibration,
magnetic fields, excessive dust or particulate matter, humidity and
static electricity.
Temperature
Maintain the temperature in the work space between 16° and 27°C
(60° and 80°F). For better long-term stability, keep the temperature
between 20° and 22°C (68° and 72°F). Temperature changes may
result in long-term drift in the system response.
Once the spectrometer has been installed, plan to leave it turned on.
The internal temperature and stability of the spectrometer will
change significantly if it is switched on and off daily. Long-term
stability improves with the length of time the spectrometer has been
on.
Avoid placing the system near air conditioning or heating ducts or
vents or by large windows. Even if the windows have curtains, there
is still significant heat loss through the glass at night or heat gain
during the day.
Keep other sources of heat, such as hot plates and heating mantles,
away from the instrument.
Vibration
Floor vibration or acoustical noise from heavy manufacturing
equipment or other sources can affect the performance of your
spectrometer. Minimize or eliminate noise and vibration wherever
possible. If vibration is a problem in your work space, consider
placing the spectrometer on a marble-top table or counter or
obtaining a vibration isolation system.
Preparing Your Site
11
Magnetic fields
Intense magnetic fields, such as those produced by superconducting
magnets, can affect spectrometer performance. The spectrometer
should be at least 5.5 meters (18 feet) away from these fields.
Minimize or eliminate exposure to magnetic fields wherever possible.
Dust and
particulate matter
The spectrometer must be installed in a location where it will not be
exposed to excessive dust or other airborne particulate matter. The
spectrometer and its power supply have cooling vents through which
excessive dust or particulate matter could enter, possibly causing
damage to the system.
Humidity
Internal windows for mid-IR Avatar systems have a special coating
that protects them from humidity damage. However, you should be
aware that the infrared detector windows are hygroscopic and
become irreversibly opaque when exposed to moisture. Also, the
beamsplitter (inside the interferometer) and other components inside
the mid-IR spectrometer models may corrode with exposure to
moisture.
Important
The Avatar 370 CsI must be purged at all times to protect the CsI
beamsplitter from the effects of water vapor. See “Purge gas” in the
“Utility Requirements” chapter for more information.
Avatar spectrometers are sealed and desiccated. This provides a
moderate level of protection against environmental humidity.
However, in environments with high humidity, we recommend that
you:
• Purge the system with dry air or nitrogen. (We provide
instructions for purge later in this manual.)
• Maintain the environmental humidity in the range of 20% to 80%
noncondensing.
• Avoid rapid changes in temperature that may cause
condensation.
12
Thermo Nicolet
Important
Whenever the spectrometer, a detector or an accessory has been
stored or shipped, immediate exposure to room air can cause
condensation damage. Allow 24 hours for the package to slowly
warm to room temperature before opening it.
If you are moving the system between sampling sites, protect the
instrument from extreme changes in temperature and humidity by
resealing it in the protective packaging that the instrument was
originally shipped in. Extreme changes in temperature and humidity
may cause moisture condensation, which can permanently damage
the optical components. ▲
Static electricity
Since static electricity can destroy electronic components, your
spectrometer was specially designed to meet the international
standard: IEC 801-2; electrostatic discharge immunity requirements
for industrial process, measurement and control equipment. If you
have trouble with static electricity in your laboratory, you can further
protect your spectrometer (especially when you are servicing or
handling components inside the spectrometer) by following these
guidelines:
• Maintain the environmental humidity in the range of 20% to 80%
noncondensing.
• Use conducting carpet in the work space.
• Place antistatic mats over conventional carpet.
• Avoid chairs made of plastics or synthetic fabrics that may allow
a build-up of large static potentials.
• Wear natural fiber clothing.
• Use a grounding strap.
Preparing Your Site
13
Ventilation
There are no special ventilation requirements for an Avatar
spectrometer. The types of analysis you plan may require special
ventilation (for example, if you will be analyzing highly toxic
samples or dissolving your samples in solvents that interact with
infrared sources). Chlorinated solvents, perfluorochlorinated
solvents, and other solvents containing halogenated hydrocarbons
are often used as FT-IR solvents. The pyrolysis of these solvents by
an infrared source may produce hydrochloric acid (HCl),
hydrofluoric acid (HF) or phosgene (COCl2). Installing an optional
sealed source will help avoid this risk.
Materials such as hydrochloric acid and hydrofluoric acid, which are
highly corrosive, may cause accelerated corrosion of the metallic
components in the spectrometer if the seal on the optical
compartment is not properly maintained or the concentration level of
corrosive gases in the air is excessively high due to improper
sampling techniques.
Warning
Hydrochloric acid, hydrofluoric acid and phosgene are highly toxic.
If you plan to regularly use solvents containing halogenated
hydrocarbons, be sure your work area is properly ventilated. ▲
Be sure to provide storage space for solvents containing halogenated
hydrocarbons that is away from the spectrometer; they should not be
left in the sample compartment for an extended time. If
measurements require the sample compartment cover to be closed,
the sample compartment must be purged while the solvents are used.
An optional purge kit is available from Thermo Nicolet.
14
Thermo Nicolet
Utility Requirements
If possible, the power connections for the spectrometer and
accessories should be easily accessible for service purposes. The line
for dry air or nitrogen, which is used to purge the system, should also
be accessible if service is required. You should have direct control
over the system utilities so that you can turn the power and purge gas
supply on or off.
Note
It is important to have all system utilities installed before the
spectrometer arrives. Utility installations must comply with all local
building and safety codes. ▲
Electrical
requirements
Power supplied to the system should be from dedicated,
uninterrupted sources. Power must be free of voltage dropouts,
transient spikes, frequency shifts and other line disturbances that
impair reliable performance. Each wall outlet you use must be
equipped with a 3-wire line: live, neutral and ground. If you suspect
power quality problems at your site, or if your system will be
installed in a heavy industrial environment, we recommend a power
quality audit before installation. Contact Thermo Nicolet or your
local electrical authority for more information.
Danger
To ensure a good ground connection and avoid shock hazard, do not
use an outlet that is connected to a conduit ground. The ground must
be a non-current-carrying wire connected to earth ground at the main
distribution box. ▲
Note
Some large accessories, such as the Liquid Analysis System and
microscopes, require their own power connections. ▲
Your spectrometer was specially designed to meet the requirements
of standard EN 61000-4-4 for electrical fast transient burst immunity
for industrial process, measurement and control equipment.
Preparing Your Site
15
Power line
conditioning accessories
Electrical
service specifications
16
Thermo Nicolet
Uninterruptable power supplies (UPS) are available from Thermo
Nicolet. A UPS reduces the likelihood of a system shutdown if
power is lost. Power line conditioners (which ensure that your
service is free from sags, surges or other line disturbances) also are
available in the U.S.A. from Thermo Nicolet for 120-volt operation.
Line conditioners for other AC supply voltages can be purchased
locally. Contact Thermo Nicolet Customer Support for information
about power conditioners and UPS.
The following table lists the specifications for electrical service.
Contact your local Thermo Nicolet service representative if you have
questions about the requirements. If you are not sure that your power
lines meet these requirements, contact Thermo Nicolet Customer
Support for information about power audits.
Requirement
Specification
AC input
100 to 240 VAC
Line frequency
50-60 Hz
Current
15 A (120-volt operation)
7.5 A (220-volt operation)
Line disturbances
Sags, surges or other line disturbances must not
exceed 10% of input voltage (even for a half
cycle).
Noise
less than 2 volts (common mode)
less than 20 volts (normal mode)
Power consumption
Generally, 50% more power should be available than the entire
system (including accessories) typically uses. Maximum power
consumption and heat dissipation specifications for the spectrometer
and accessories are shown below. The values are approximate.
Item
Avatar spectrometer
Power
Consumption
Max. Heat
Dissipation
50 W
171 Btu/hr
460 W
1,570 Btu/hr
10 W
34 Btu/hr
1,000 W
3,414 Btu/hr
Continuµm microscope
250 W
854 Btu/hr
Centaurµs microscope
65 W
222 Btu/hr
Autosampler**
40 W
137 Btu/hr
345 W
1178 Btu/hr
74 W
253 Btu/hr
200 W
683 Btu/hr
Standard computer and monitor*
Parker Balston® purge gas generator
Parker Balston pure air dryer
PLUS 2 pump**
PLUS 2 power supply/valve module**
Standard laser printer*
*
Values shown are estimates. See the power specifications on the rear panels
or undersides of these units.
** Used with the Liquid Analysis System.
Telephone
If possible, install a telephone with an outside line near the
spectrometer. Should you require assistance from Thermo Nicolet, a
telephone in the lab will save time.
If your system has the RSVP (Remove Support and Verification
Program) package, install a separate analog phone line for the
modem. The line must be capable of accepting incoming calls.
Preparing Your Site
17
Note
We recommend that you dedicate a phone line for data modem calls.
If you require assistance, a Thermo Nicolet service engineer can
discuss the problem with you through the voice line while running
diagnostic tests on your system through the modem line. ▲
Modem line
specifications
The data modem requires an analog phone line (an outside line in
most businesses). Many private branch exchange (PBX) phone
systems use digital phone lines that will not work with your data
modem. Ask your PBX administrator for a direct, outside line or a
sampled analog trunk line that allows incoming calls from an outside
source.
Use the following guidelines to determine whether or not you have
an analog phone line.
Rotary phone – All rotary phones are analog phones. If you hear a
dial tone when you plug a rotary phone into the phone wall jack, you
have an analog phone line and your data modem will work.
Push-button phone – If you have a push-button phone, check the
bottom of the phone to see whether it has a ringer equivalence
number (REN) or a load number (LN). All analog phones have an
REN or LN.
Important
Wall jack specifications
Purge gas
18
Thermo Nicolet
If possible, your facility’s information technology or
telecommunications department should verify that a phone line is an
analog line before you connect a modem to it. A modem can be
damaged if it is connected to a digital phone line. ▲
In the U.S.A., install an RJ-11 jack; in Canada, install a CA11A
jack. For other locations, contact your local Thermo Nicolet office
for jack requirements.
Avatar spectrometers are sealed and desiccated. The spectrometer
does, however, contain precise optical components that may be
damaged by a moist environment. To protect those components, we
recommend that you obtain an optional purge kit if you have
difficulty controlling humidity in your laboratory environment.
Important
The Avatar 370 CsI must be purged at all times to protect the CsI
beamsplitter from the effects of water vapor.
Note
Optical damage caused by failure to purge the spectrometer is not
covered under your Thermo Nicolet warranty. ▲
You may also have a laboratory environment that is contaminated
with solvents or other agents that can corrode spectrometer
components. Purging the spectrometer (forcing dried air or nitrogen
through the spectrometer to eliminate water vapor, carbon dioxide
and other airborne contaminants) will better protect the components.
Although all Avatar spectrometers are sealed and desiccated, we
recommend that you install a source of dry air or nitrogen to purge
the spectrometer of water vapor, carbon dioxide and volatile
solvents.
Dry air and nitrogen are equally effective in eliminating water vapor
and volatile solvents, but nitrogen is more effective against carbon
dioxide. The purge gas must be free of moisture, oil and other
reactive materials. To remove particulate matter and oil, you may
need to install a 10-micrometer filter. Dry air or nitrogen supplied
for purge should be dried to a dew point of -70°C (-94°F) or below
for best performance.
Warning
Never use a flammable, combustible or toxic gas to purge the
spectrometer. ▲
Important
Do not use Argon as a purge gas. Argon is a good insulator and
prevents the laser from cooling properly. This significantly shortens
the life of the laser and can also cause the source to overheat. ▲
Important
The interaction of chlorinated solvents, perfluorochlorinated solvents
or other solvents containing halogenated hydrocarbons (for example,
Freon®) with an IR source can corrode spectrometer components. Do
not leave these solvents exposed around the spectrometer any longer
than necessary. Installing an optional sealed source will help avoid
this risk. ▲
Preparing Your Site
19
Purging the spectrometer can also ensure more accurate results. This
is particularly true when you collect data for sample components that
are also present in your laboratory environment.
Note
If you ordered a microscope, you might need more than one purge
line. Contact Thermo Nicolet Customer Support for more
information. ▲
Installing
purge gas fittings
If you plan to purge the spectrometer (required for the Avatar 370
CsI), install the purge line and the necessary fittings before the
spectrometer arrives (see the illustration below). The source line
pressure delivered to the pressure regulator must be at least 1.4 bar
(140 kPa, or 20 psig) and must not exceed 7 bar (700 kPa, or
100 psig).
Shutoff valve
Supplied by
you
Either 1/4" male fitting or
3/8" female fitting
A pressure regulator and flowmeter will be installed by Thermo
Nicolet to maintain a line pressure of 0.7 to 1.4 bar (70 to 140 kPa,
or 10 to 20 psig) at the flowmeter inlet and a flow rate of 15 scfh
(about 0.4 m3/hr) for optimal data collection.
Install the purge source line within 3 meters (10 feet) of the proposed
location for your spectrometer. The line must be installed vertically to
ensure that the pressure gauge scale does not tilt when the gauge and
regulator assembly are attached later. This prevents moisture from
accumulating in the system and allows accurate gas flow measurement.
20
Thermo Nicolet
Once the line is installed, attach a shutoff valve and either a 1/4-inch
male fitting or a 3/8-inch female fitting. The pressure coupling will
be attached to the 1/4-inch male fitting by Thermo Nicolet. If you
used the 3/8-inch female fitting, the reducing nipple will be installed
by Thermo Nicolet before the pressure coupling is attached. The
illustration below shows how the equipment will be connected
between the pressure coupling and the spectrometer.
3/8" to 1/4"
male reducing nipple
(if required)
Shutoff valve
Pressure regulator
Pressure
coupling
50
40
30
20
10
60
20
140
0
Purge gas generators
SCFH AIR
100
120
40
Purge coupler
insert connected
to spectrometer
rear panel
80
Flowmeter
160
Filter
If your facility does not have a source of clean, dry compressed air
or nitrogen for system purge, we recommend that you consider using
a purge gas generator. The generator cleans and dries the air supplied
by your air compressor and provides it to the spectrometer. (For
facilities without an air compressor, a complete dry-air generating
system is available; see the next section.)
Preparing Your Site
21
The spectrometer works well with the Parker Balston® purge gas
generator models shown at the top of the following table, which lists
part numbers and specifications. The generator supply voltage and
frequency are not adjustable, so be sure to order the correct items for
your local utility service.
Parker Balston Model Numbers:
75-45
75-45EU
75-52
75-52EU
Thermo Nicolet part number
869-050300
869-050400
869-050500
869-050600
Nominal input line voltage
120 volts AC
240 volts AC
120 volts AC
240 volts AC
Maximum power consumption
10 watts
10 watts
10 watts
10 watts
Line frequency
60 Hz
50 Hz
60 Hz
50 Hz
Dew point
-73°C (-100°F)
-73°C (-100°F)
-73°C (-100°F)
-73°C (-100°F)
17 liters/min
(36 scfh)
17 liters/min
(36 scfh)
34 liters/min
(72 scfh)
34 liters/min
(72 scfh)
9 liters/min
(18 scfh)
17 liters/min
(36 scfh)
17 liters/min
(36 scfh)
Maximum dry (outlet) air flow
rate for specified dew points*
Inlet pressure 8.50 atm
(125 psig)
Inlet pressure 4.08 atm (60 psig) 9 liters/min
(18 scfh)
Air consumption for
regeneration**
14 liters/min
(30 scfh)
14 liters/min
(30 scfh)
28 liters/min
(60 scfh)
28 liters/min
(60 scfh)
Minimum inlet air pressure
4.08 atm (60 psig)
4.08 atm (60 psig)
4.08 atm (60 psig)
4.08 atm (60
psig)
CO2 concentration
< 1 ppm
< 1 ppm
< 1 ppm
< 1 ppm
Maximum inlet air temp.***
25°C (78°F)
25°C (78°F)
25°C (78°F)
25°C (78°F)
Inlet/outlet port size
1/4 inch NPT
(female)
1/4 inch NPT
(female)
1/4 inch NPT
(female)
1/4 inch NPT
(female)
Shipping weight
11 kg (25 lb)
11 kg (25 lb)
18 kg (40 lb)
18 kg (40 lb)
*
**
***
Dew point will be lower than specified at lower air flow.
Total air required = air loss + process demand (up to maximum dry air flow rate).
Outlet dew point will increase at higher inlet compressed air temperatures.
Note
22
Thermo Nicolet
Position the purge gas generator away from the spectrometer to
reduce noise and vibration. ▲
Important
Purge gas generators require a minimum pressure for proper
operation. Failure to supply this pressure may allow moisture to
enter the system, causing permanent damage. See the preceding table
for the minimum pressure values. ▲
The following illustrations show the dimensions of the purge gas
generators and the locations of holes that can be used for mounting
the generators on a wall. Models 75-45 and 75-45EU fit easily on top
of a bench or table. When not wall-mounted, Models 75-52 and
75-52EU should be placed on the floor.
Pure air dryer
Thermo Nicolet also offers a complete dry-air generating system.
Since this system contains an air compressor, it can be used in
facilities that do not have a source of compressed air.
The system includes an air compressor, a dryer, prefilters, a final
filter/moisture indicator and flow controls. The following table gives
the Thermo Nicolet part numbers and specifications for the two
available generator models.
Parker Balston Model Numbers:
74-5041
74-5041EU
Thermo Nicolet part number
869-065500
869-065600
Nominal input line voltage,
frequency
110 VAC, 60 Hz
220 VAC, 50 Hz
Power consumption
1000 watts
1000 watts
Dew point
-73°C (-100°F)
-73°C (-100°F)
Maximum air flow rate at
80 psig
28 L/min (60 scfh)
28 L/min (60 scfh)
CO2 concentration
<1 ppm
<1 ppm
Outlet port size
1/4 inch NPT
(female)
1/4 inch NPT
(female)
Shipping weight
114 kg (250 lb)
114 kg (250 lb)
Preparing Your Site
23
33.8 cm
(13.3 in)
18.3 cm
(7.2 in)
17.3 cm
(6.8 in)
33.4 cm
(13.2 in)
Mounting
hole (4)
Left Side
Front
Model 75-45 (and 75-45EU)
32.4 cm
(12.8 in)
23.5 cm
(9.2 in)
23 cm
(9 in)
Mounting
hole
inside (2)
69.7 cm
(27.4 in)
Front
Right Side
Model 75-52 (and 75-52EU)
24
Thermo Nicolet
45.7 cm
(18 in)
80 cm
(31.5 in)
79.7 cm
(31.4 in)
Front
Right Side
Pure air dryer
Note
Important
Read the manufacturer’s instructions before installing air-drying
equipment or performing any maintenance, such as changing the
filters. The installation and maintenance of air-drying equipment is
your responsibility. Failure to change the filters and perform other
routine maintenance as specified by the manufacturer can void the
warranty. ▲
Before you connect a pure air dryer to the spectrometer, it is vital
that you purge the dryer of water and particulates by running it for at
least 12 hours at nominal air flow. Otherwise, you risk severe
damage to the beamsplitter and detector in the spectrometer when
you connect the pure air dryer. ▲
Preparing Your Site
25
Liquid nitrogen
Warning
26
Thermo Nicolet
If you plan to use an MCT or other cooled detector in your
spectrometer or in an accessory such as a microscope, you will need
a supply of liquid nitrogen. The liquid nitrogen is used to cool the
detector. The quantity of liquid nitrogen needed will vary depending
on how often and for how long the detector is used. In general,
approximately one liter of liquid nitrogen is consumed by an MCT
detector during eight hours of continuous use. If you are using a
Continuµm or Centaurµs microscope, 750 milliliters (about 25 fluid
ounces) will provide approximately 18 hours of cooling.
Liquid nitrogen is extremely cold and therefore potentially
hazardous. Use only an appropriate laboratory dewar to carry the
liquid nitrogen to the spectrometer. Avoid contact with skin. Wear
protective clothing and eyewear and follow standard laboratory
safety practices to prevent injury. ▲
Accessory Modules
This chapter provides preinstallation considerations and dimensional
drawings for accessory modules. If you ordered an accessory module
with your Avatar spectrometer, study the drawings to help plan your
spectrometer work space.
Thermo Nicolet will install all infrared microscopes and Liquid
Analysis Systems.
IR microscopes
Note
Thermo Nicolet offers infrared microscopes that attach directly to
the right side of the spectrometer. Microscopes can be installed
between the spectrometer and other accessory modules.
Choose a table height that allows you to work comfortably with the
spectrometer. If you will be using a Thermo Nicolet microscope
accessory, keep in mind that the eyepiece will be 48 to 53 cm (19 to
21 in) above the table top. ▲
If you purchased a Continuµm or Centaurµs microscope, see the
drawing showing microscope dimensions in “Overall system
dimensions and required clearances” in the “Location” chapter.
Preparing Your Site
27
Continuµm microscope
The Continuµm microscope weighs approximately 58 kg (128 lb)
and has the dimensions shown in the following illustration.
66 cm
76 cm
43 cm
Continuµm dimensions
28
Thermo Nicolet
Centaurµs microscope
The Centaurµs microscope weighs approximately 30 kg (65 lb). The
beam port on the Centaurµs can attach to right side of an Avatar
spectrometer. When the beam port attachment is present, 7.6 cm
(3 in) is added to the width of the microscope. In addition, if the
optional eyepiece is installed, 11.5 cm (4.5 in) is added to the height.
Use the dimensions shown in the following illustration to help plan
your work space.
Cnt
o
act
leArt
53 cm
66 cm
36 cm
Centaurµs dimensions
Preparing Your Site
29
Liquid
Analysis System
The Thermo Nicolet Liquid Analysis System can include a PLUS 2
(programmable liquid uptake system) and an autosampler. The
following illustration shows the system with the most commonly
used components. The overall width of this configuration is
approximately 155 cm (61 in).
Avatar 370 with a PLUS 2 Liquid Analysis System
30
Thermo Nicolet
Follow the recommendations below to prepare your site for installing
the Liquid Analysis System.
• We highly recommend dry-air purge. See “Purge gas” for more
information.
• The configured system requires about 2 meters (6 feet) of
spectrometer space. The autosampler must be located on the right
side of the spectrometer.
• A wash solvent reservoir containing the appropriate solvent must
be located behind the autosampler. The reservoir is not included
with the system.
• The waste reservoir (provided) must be located below the system
for gravity-fed waste containment.
• Be sure to have a sample material that is appropriate for
performing a pathlength calibration of the sample cell. For
example, the material required for used lubricating oil analysis is
99% HPLC grade or purer heptane. You will need 2 to 8 liters of
this material per year, depending on the frequency of calibration.
• Be prepared to supply some representative samples for verifying
that the system is working properly at the time of installation.
Preparing Your Site
31
The following dimensions and weights of system components are
approximate. Weights vary depending on the options you ordered
with your system.
Component
Width
Height
Depth
Weight
Autosampler
52 cm
(20.5 in)
26 cm
(10 in)
46 cm
(18 in)
10.5 kg
(23 lb)
PLUS 2 power supply/
24 cm
valve module and pump (10.0 in)
25 cm
(10.6 in)
35 cm
(12.8 in)
8.2 kg
(18 lb)
13 cm
(5.0 in)
25 cm
(10.0 in)
18 cm
(8.1 in)
2.7 kg
(6 lb)
Liquid uptake module
25 cm
18 cm
13 cm
Liquid uptake module
32
Thermo Nicolet
25 cm
35 cm
24 cm
PLUS 2 power supply/valve module and pump
26 cm
10 in
52 cm
20.5 in
46 cm
18 in
Autosampler
Preparing Your Site
33
34
Thermo Nicolet
Minimum Computer Requirements
If you are supplying your own computer, be sure that it meets the
following minimum requirements for hardware and software.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Intel® Pentium® II processor with 400 MHz clock speed.
128 megabytes of random access memory (RAM).
Hard disk with 1.0 gigabyte of available space.
Quad speed CD-ROM drive.
1.44-megabyte floppy disk drive for 3.5-inch floppy disks.
15-inch SVGA monitor with 800-by-600 resolution.
16-bit video card capable of displaying at least 256 colors with
1024 by 768 resolution.
Sound card and speakers for listening to the audio portions of the
tutorials.
Keyboard and serial, bus, USB or PS/2®-style mouse.
Parallel port for communication with the spectrometer.
Printer port (USB, parallel and/or serial) if you plan to print on a
local printer.
Ethernet port if you plan to connect the system to a network.
Internet connection if you plan to use the internet features of the
software.
An extra serial port if you plan to use a PLUS 2 Liquid
Analysis System.
Windows® 98, Windows NT® 4.0, Windows 2000, Windows Me
or Windows XP.
Preparing Your Site
35
36
Thermo Nicolet
Preinstallation Check List
Use this check list to ensure that all preinstallation steps have been
performed. You will then be ready to install the system.
Location
… The location is easily accessible to Thermo Nicolet personnel.
… The system will fit through the necessary doorways and
elevators.
… There are no floor vibrations from air conditioners, motors or
other sources.
… There are no intense magnetic fields.
… The floor and table(s) are strong enough to support the system.
… The table height is convenient for use of the spectrometer and
all accessories.
… There is adequate clearance around and above the system.
… A telephone is available within reach of the system operator.
Environmental considerations
… There is no static-producing carpet.
… No windows are nearby.
… The temperature stays between 16° and 27°C (60° and 80°F),
20° and 22°C (68° and 72°F) for best performance.
… The humidity (noncondensing) is between 20% and 80%.
… The environment is free of excessive dust and particulate matter.
Utility service
… A dedicated power line is available.
… There is sufficient power to run the spectrometer and all
accessories.
… There is a definite earth ground (not neutral) for power outlets.
… Adherence to all local building and safety codes is verified.
… A source of dry air or nitrogen is installed, if you have a humid
environment.
Preparing Your Site
37
Other supplies
… A supply of liquid nitrogen is available if an MCT detector will
be used.
… If the system will include a Liquid Analysis System, 2 to 8 liters
(about 0.5 to 2 gallons) of the appropriate material is available
for calibrating the sample cell.
If you are supplying your own computer
… The computer meets the minimum requirements.
… Before your Avatar system arrives, make sure your computer’s
parallel port is configured for ECP operation and all power
management features are disabled. Contact your computer
support personnel if you need help correctly configuring these
features in the BIOS.
… The appropriate version of Windows operating system software
is installed on the computer.
38
Thermo Nicolet