Agilent Technologies Varian MERCURY Series Technical manual

Installation
Planning
M
ERCURY
VxWorks Powered
M
ERCURY
-Series NMR Spectrometer Systems
Pub. No. 01-999021-00, Rev. A0100
NOTICE: This document contains references to Varian.
Please note that Varian, Inc. is now part of Agilent
Technologies. For more information, go to
www.agilent.com/chem.

Installation Planning: M
ERCURY
VxWorks Powered
M
ERCURY
-
Series NMR Spectrometer Systems
Pub. No. 01-999021-00, Rev. A0100
Applicability of manual:
M
ERCURY
VxWorks-Powered NMR spectrometer systems
(shortened to M
ERCURY
-
VX
throughout this manual)
Technical contributors: FritsVosman, Mark Stevenson
Technical writer: Dan Steele
Technical editor: James Welch
Revision history:
A0398 – Initial release as Pub. No. 01-999021-00 (was 87-192324-00)
A0698 – Updated telephone numbers
A0399 – Corrected magnetic field plots in room layout diagrams
A0100 – Updated phone list
Copyright 1996− 2000 by Varian, Inc.
3120 Hansen Way, Palo Alto, California 94304
http://www.varianinc.com
All rights reserved. Printed in the United States.
The information in this document has been carefully checked and is believed to be
entirely reliable. However, no responsibility is assumed for inaccuracies. Statements in
this document are not intended to create any warranty, expressed or implied.
Specifications and performance characteristics of the software described in this manual
may be changed at any time without notice.Varian reserves the right to make changes in
any products herein to improve reliability, function, or design. Varian does not assume
any liability arising out of the application or use of any product or circuit described
herein; neither does it convey any license under its patent rights nor the rights of others.
Inclusion in this document does not imply that any particular feature is standard on the
instrument.
UNITY
INOVA , M
ERCURY
,Gemini, GEMINI 2000 ,UNITY plu s,UNITY,VXR,XL,VNMR,
VnmrS, VnmrX, VnmrI, VnmrV, VnmrSGI, MAGICAL II, AutoLock, AutoShim,
AutoPhase, limNET,ASM, and SMS are registered trademarks or trademarks ofVarian,
Inc. Sun, Solaris, CDE, Suninstall, Ultra, SPARC, SPARCstation, SunCD, and NFS are
registered trademarks or trademarks of Sun Microsystems, Inc. and SPARC
International. Oxford is a registered trademark of Oxford Instruments LTD. Ethernet is
a registered trademark of Xerox Corporation.VxWORKS and VxWORKS POWERED
are registered trademarks of WindRiver Inc. Other product names in this document are
registered trademarks or trademarks of their respective holders.

01-999021-00 A0100 Installation Planning Guide
3
Table of Contents
Introduction ........................................................................................................ 7
Chapter 1. System Delivery.............................................................................. 9
1.1 Preparing for System Delivery ........................................................................... 10
1.2 Moving the SystemAfter Delivery ..................................................................... 10
1.3 Selecting a Local Shipping Company ................................................................ 11
1.4 Postdelivery Procedure ....................................................................................... 12
Chapter 2. Site Requirements ........................................................................ 13
2.1 Site Size .............................................................................................................. 14
2.2 Ceiling Height .................................................................................................... 15
2.3 Accessibility ....................................................................................................... 15
2.4 Maximum Altitude .............................................................................................. 15
2.5 Structural Strength of Floor ................................................................................ 15
2.6 Antivibration Bolt-Down Requirement .............................................................. 17
2.7 Floor Vibration Requirements ............................................................................ 17
2.8 Magnetic Environment ....................................................................................... 18
2.9 Radio-Frequency Environment ........................................................................... 19
2.10 Electrostatic Discharges ................................................................................... 20
2.11 Ambient Temperature and Humidity ................................................................ 20
2.12 Ventilation ......................................................................................................... 21
2.13 Helium and Nitrogen Refill Volumes and Intervals .......................................... 21
Chapter 3. Site Preparation ............................................................................ 23
3.1 Line Voltage Variation ........................................................................................ 23
3.2 Uninterrupted Power Supply (UPS) ................................................................... 24
3.3 Electrical Outlets ................................................................................................ 24
3.4 Compressed Air Supply ...................................................................................... 25
3.5 Compressed Nitrogen Gas .................................................................................. 26
3.6 Telephone and Internet Access ........................................................................... 26
3.7 Air Conditioning ................................................................................................. 26
3.8 Computer Preparation ......................................................................................... 27
Chapter 4. Installation Supplies..................................................................... 31
4.1 Required Installation Supplies and Equipment .................................................. 31
4.2 Recommended Installation Supplies and Equipment ......................................... 34

4
Installation Planning Guide 01-999021-00 A0100
Chapter 5. Stray Magnetic Fields................................................................... 35
5.1 Safety Hazards of Strong Magnetic Fields .......................................................... 35
5.2 Stray Field Plots .................................................................................................. 36
5.3 Posting Requirements for Magnetic Field Warning Signs .................................. 39
Chapter 6. NMR Room Layouts...................................................................... 41
6.1 RF Cable Harness ................................................................................................ 41
6.2 Magnetic Field Considerations ........................................................................... 41
6.3 Typical Room Layouts ........................................................................................ 41
Index.................................................................................................................. 51

01-999021-00 A0100 Installation Planning Guide
5
List of Figures
Figure 1. MERCURY -Series Cabinet, Open Front and Back ............................................ 9
Figure 2. Plan Views of Floor Contact Points of Magnet Stands ................................... 16
Figure 3. Platform Antivibration System Leg Placements and Sizes ............................. 16
Figure 4. Magnet LegAntivibration System Leg Placement and Sizes ......................... 17
Figure 5. Stray Field Plots for 200-MHz Magnets ......................................................... 37
Figure 6. Stray Field Plots for 300-MHz Magnets ......................................................... 37
Figure 7. Stray Field Plots for 400-MHz Magnets ......................................................... 38
Figure 8. 10-Gauss Warning Sign ................................................................................... 40
Figure 9. 5-Gauss Warning Sign ..................................................................................... 40
Figure 10. Magnet Area Danger Sign ............................................................................. 40

6
Installation Planning Guide 01-999021-00 A0100
List ofTables
Table 1. Magnet Dimensions and Weights as Shipped with Crate and Pallet* ............................. 11
Table 2. MERCURY-VX Cabinet and Optional Components as Shipped with Carton and Pallet* 11
Table 3. Magnet Dimensions and Weights with Stand and Legs Attached* ................................. 14
Table 4. MERCURY-VX Cabinet and Optional Components Dimensions and Weights* ............. 14
Table 5. Ceiling Height Minimum ................................................................................................ 15
Table 6. Interaction Between Common Objects and a Magnetic Field ......................................... 18
Table 7. Spectrometer and Nuclei Operating Frequencies ............................................................ 19
Table 8. Ambient Temperature and Relative Humidity ................................................................. 20
Table 9. Liquid Helium Displacement for Room Ventilation Considerations .............................. 21
Table 10. Helium and Nitrogen Refill Intervals and Volumes ....................................................... 21
Table 11. Electrical Outlet Requirements ..................................................................................... 24
Table 12. Compressed Air Supply Source ..................................................................................... 25
Table 13. Air Conditioning Requirements .................................................................................... 26
Table 14. Solaris Preinstallation Worksheet .................................................................................. 29
Table 15. Initial On-Site and Short-Notice Liquid Helium Supplies ............................................ 32
Table 16. Initial On-Site Liquid Nitrogen Supply ......................................................................... 32
Table 17. Helium Gas Supply ....................................................................................................... 33
Table 18. Stray Field Data for Oxford Magnets ............................................................................ 36
Table 19. Stray Field Data for NMR Magnet Systems ................................................................. 36

01-999021-00 A0100 Installation Planning Guide
7
Introduction
The Installation Planning guide assists the customer in selecting and preparing a site to
install a Varian MERCURY Vx Works-Powered NMR spectrometer system (shortened to
MERCURY-VX throughout this manual), including preparing the computer system. Using
the predelivery and postdelivery checklists provided and following the information
presented in this guide should bring about a smooth transition from delivery to installation.
This guide contains the following chapters:
•
Chapter 1, ”System Delivery,” describes how to prepare for system delivery and
provides shipping dimensions and weights for NMR system components.
•
Chapter 2, “Site Requirements,” lists the factors to consider when selecting the
installation site.
•
Chapter 3, “Site Preparation,” describes the many factors to consider—electrical,
cooling, safety, supplies, and so forth—when preparing the installation site.
•
Chapter 4, “Installation Supplies,” discusses the required and recommended supplies
for the system installation.
•
Chapter 5, “Stray Magnetic Fields,” provides magnetic field safety data and shows
stray field plots for each magnet system.
•
Chapter 6, “NMR Room Layouts,” provides help in laying out the system room.
Safety Precautions
Throughout this guide are important warnings and cautions that you should read and follow
carefully. These safety precautions have the following format and meaning:
WARNING:
Warnings are used when failureto observeinstructions orprecautions
could result in injury or death to humans or animals,
or significant
property damage.
CAUTION:
Cautions are used when failure to observe instructions could result in
permanent damage to equipment or loss of data.
Importance of Communication
In planning the system installation, good communications are essential between the
customer, the facility planner or architect, and Varian on a frequent basis. Any questions or
problems must be addressed immediately to avoid delays and additional costs.
One person from the customer’s institution should be appointed to coordinate site planning
and preparation. This person should represent all users of the system in dealing withVarian
and the facility planner or architect.
We at Varian will make every effort to ensure that the ownership of your new NMR
spectrometer is a lasting and pleasurable experience.

Introduction
8
Installation Planning Guide 01-999021-00 A0100
ContactingVarian
Varian’s staff of thoroughly trained service specialists throughout the world is your
assurance of always receiving prompt attention.
For product sales and service information, contact one of the Varian sales offices:
• Argentina, BuenosAires, [phone]
•
Australia, Mulgrave, Victoria, (3) 9566-1138
•
Austria, Vösendorf, (1) 699 96 69
•
Belgium, Brussels, (2) 721 48 50
•
Brazil, Sao Paulo, (11) 829-5444
•
Canada, Ottawa, Ontario, [phone]
•
China, Beijing, (10) 6846-3640
•
Denmark, Herlev, (42) 84 6166
•
France, Orsay, (1) 69 86 38 38
•
Germany, Darmstadt, (6151) 70 30
• Italy, Milan, (2) 921351
•
Japan, Tokyo, (3) 5232 1211
•
Korea, Seoul, (2) 3452-2452
•
Mexico, Mexico City, (5) 523-9465
•
Netherlands, Houten, (30) 635 0909
•
Norway, Oslo, (9) 86 74 70
•
Russian Federation, Moscow, (95) 241-7014
• Spain, Madrid, (91) 472-7612
•
Sweden, Solna, (8) 445 1601
•
Switzerland, Zug, (41) 749 88 44
•
Taiwan, Taipei, (2) 2698-9555
•
United Kingdom, Walton-on-Thames, England (1932) 898 000
•United States, PaloAlto, California,
Varian, Inc., NMR Systems
Customer Sales Support, [phone]
Service Support, PaloAlto, California, 1 [phone]
E- mail: [e-mail]
North American Service Manager
6440 Dobbin Rd, Ste D, Columbia, MD 21045
[phone]
•Venezuela, Valencia (41) 257608

01-999021-00 A0100 Installation Planning Guide 9
Chapter 1. System Delivery
Sections in this chapter:
•1.1 “Preparing for System Delivery” page 10
•1.2 “Moving the SystemAfter Delivery” page 10
•1.3 “Selecting a Local Shipping Company” page 11
•1.4 “Postdelivery Procedure” page 12
Varian’s delivery responsibility ends atVarian’s factory shipping dock or at the customer’s
receiving dock, depending upon the type of insurance obtained by the customer. In either
case, the customer must provide a moving crew to move the shipping crates holding the
system from the delivery truck (or storage location) to the installation site.
The method of shipping and the current conditions at the destination determine the extent
of the receiving preparations. The Varian Order Acknowledgment form indicates the
shipping method for the order. The following service is usually provided:
•Air Freight. System is delivered to unloading dock or other easily accessible outside
unloading point. Factory to destination transit time is about two days (not including
time to clear customs).
•Motor or Moving Van. System is delivered to an easily accessible interior location or
any interior location to which freight can be easily transported by movable dolly.
Excluded is transport in elevators that cannot support the weight of the shipment or up
stairways. Factory to destination within the United States is about eight days.
Figure 1 illustrates the open front and back of a MERCURY-series cabinet.
Front Back
SHM / DAC
DRIVER
CAUTION
DISABLE POWER
BEFORE
REMOVING / INSTALLING
BOARDS
ACQ CPU
ETHERNET
SERIAL PORT
STM / OUTPUT
ADC
DIAGNOSTICS
JUNCTION BD
HOMO DCPLR
HI / LOW BND
4 NUCLEI
REF GEN
LOW BND TX
OBS RX
HI BND TX
HET DCPLR
LOCK TX
LOCK RX
Figure 1. MERCURY-Series Cabinet, Open Front and Back
Digital and
rf card cages
Power supply
and amplifiers
VT
controller
Reset
switch
PFG
amplifier
(optional)
boot up
(optional)

Chapter 1. System Delivery
10 Installation Planning Guide 01-999021-00 A0100
1.1 Preparing for System Delivery
The following steps will help you prepare for delivery of the system. Refer to the relevant
sections in this manual for additional instructions and safety precautions. Consult
knowledgeable individuals, such as plant facilities personnel, for assistance in
implementing these instructions.
1. Check the “SHIP BY” date on the Varian Order Acknowledgment form. Use this
date as a target for completing installation preparations.
If you anticipate any delays in site readiness and need to delay shipment, notify the
factory at least 90 days in advance.
2. Select the site for installing and operating the system. The site must meet the
requirements described in Chapter 2, “Site Requirements,” on page 13.
3. Prepare the installation site, including electrical outlets, compressed air supply, air
conditioning, and host computer setup form. Site preparation details are discussed in
Chapter 3, “Site Preparation,” on page 23.
Chapter 6, “NMR Room Layouts,” on page 41 provides some sample NMR room
layouts. When setting up the NMR room, remember to consider the stray magnetic
fields, as discussed in Chapter 5, “Stray Magnetic Fields,” on page 35.
4. Order the supplies and equipment needed for installation and startup operation.
These supplies are described in Chapter 4, “Installation Supplies,” on page 31.
5. Make arrangements for workers and equipment to move the system upon delivery to
the installation site. Refer to 1.2 “Moving the SystemAfter Delivery” page 10 for
details on moving the system. Refer to 1.3 “Selecting a Local Shipping Company”
page 11 for details on selecting a local shipping company.
1.2 Moving the System After Delivery
To avoid unnecessary expense, be sure moving personnel and equipment are ready for the
shipment on the delivery day. If possible, move the crates in an upright position, with a
forklift or hydraulic pallet mover, directly to the installation site.
CAUTION: Move the crates in an upright position.Do not drop or mishandle.The
crates are packed with G-force and“tip-and-tell”indicators that record
mishandling. Be especially careful about moving the magnet crate. If
one or more crates cannot be moved into the installation site because
of doorway clearance, leave the affected crates in a clean, safe, dry
location.Do not open any crate except with direct instructions from an
authorized service representative.
The installation site must be accessible from the delivery location with adequate clearance
for system crates and moving equipment throughout the access route. Table 1 and Table 2
contain system dimensions and weights for calculating vertical, horizontal, and turning
clearances, as well as evaluating the structural strength of passageways. Moving the larger
crates of the system requires a forklift or hydraulic pallet mover, which must be considered
when calculating accessibility.

1.3 Selecting a Local Shipping Company
01-999021-00 A0100 Installation Planning Guide 11
For an installation site at a different level from the delivery location, be sure that the lifting
equipment (such as an elevator) is capable of handling the combined weight and size of the
shipping crates and the moving equipment.
If it is not possible to gain access to the installation site unless the system is uncrated,
contact a Varian service representative for further instructions. Do not uncrate the system
except with direct instructions from an authorized service representative.
Do not drop or mishandle. The crates are packed with G-force and “tip-and-tell” indicators
that record mishandling. If one or more crates cannot be moved into the installation site
because of doorway clearance, leave the affected crates in a clean, safe, dry location.Again,
do not open any crate except with direct instructions from an authorized service
representative. In particular, the crate containing the magnet has components that could be
irreparably damaged if opened incorrectly.
1.3 Selecting a Local Shipping Company
Confirm that the local shipping company uses a vehicle that will allow the magnet to be
transported in an upright position for all transport methods that will be used. See Table 1,
and Table 2 for dimensions and weights of major system components.
Table 1. Magnet Dimensions and Weights as Shipped with Crate and Pallet*
Magnet type**
(MHz/mm) Height cm (in.) Width cm (in.) Depth cm (in.) Weight kg (lb)
200/54 135 (53) 79 (31) 89 (35) 132 (290)
200/54 LH235 201 (79) 97 (38) 97 (38) 468 (1030)
200/54 LH365 201 (79) 97 (38) 97 (38) 468 (1030)
300/54 135 (53) 79 (31) 89 (35) 142 (313)
300/54 LH235 201 (79) 97 (38) 97 (38) 468 (1030)
300/54 LH365 201 (79) 97 (38) 97 (38) 468 (1030)
400/54 201 (79) 97 (38) 97 (38) 468 (1030)
400/54 LH365 201 (79) 97 (38) 97 (38) 468 (1030)
* Dimensions and weights are approximate and subject to change. Height dimensions do not
include optional accessories such as a siphon or plow-out tube.
** Long-hold magnets are designated by “LH” and a number that represents hold time in days.
Table 2. MERCURY-VX Cabinet and Optional Components as Shipped with Carton and Pallet*
Component Height
cm (in.) Width cm (in.) Depth cm (in.) Weight kg (lb)
MERCURY-VX NMR Console 100 (39.5) 66 (26) 89 (35) 104 (230)
SMS Autosampler table
SMS Autosampler robot 104 (41) 130 (51) 104 (41) 104 (41) 135 (53) 142 (56) 159 (350) for both
Work Table 31 (12) 198 (78) 91 (36) 53 (117)
* Dimensions and weights are approximate and subject to change.

Chapter 1. System Delivery
12 Installation Planning Guide 01-999021-00 A0100
Contact the shipping company locally about the service usually rendered. If moving
equipment will be required at the site, obtain help from the plant facilities department or an
outside moving service.
Sea freight or motor freight without air cushion suspension is not recommended for long
distance delivery of systems.
1.4 Postdelivery Procedure
When the system is delivered, follow the instructions below to inspect for shipping damage
before moving the crates. Do not open any crate.
CAUTION: Do not open any crate except with direct instructions from an
authorized Varian service representative. In particular, the crate
containing the magnet has components that could be irreparably
damaged if opened incorrectly.
1. When the shipment arrives, make an immediate visual inspection of the outside of
each crate for damage. Take the following steps if any damage is found:
a. Note the nature of the damage on the carrier’s waybill.
b. Request an inspection and written damage report by a representative of the
carrier.
c. Forward a copy of the damage report to the local Varian representative.
In case of damage, the FOB block on the Varian Order Acknowledgment form
determines owner responsibility:
•FOB PALO ALTO. Transfer of ownership occurs when the shipment leaves the
factory. The customer is responsible for claims for shipping damage. Upon
request, Varian will provide assistance in filing claims.
•FOB DESTINATION. Transfer of ownership occurs at customer’s point of
receipt. Varian is responsible for claims for shipping damage.
Damage discovered fifteen or more days after delivery generally cannot be
recovered. Such damage will be at the expense of the customer.
2. As soon as possible, move the shipment to a clean, dry location (preferably the
installation site). Move the crates in an upright position as described in “Moving the
System After Delivery” on page 10.
3. Contact Varian to schedule the visit of an installation engineer after the shipment is
moved to the installation site, the utilities are installed, and non-Varian installation
parts and supplies (listed in Chapter 4, “Installation Supplies,” on page 31) are
received.
For installations in the United States, telephone the installation department at (650)
424-4587. For installations at other locations, contact the nearest Varian sales or
service office, listed in the beginning of this guide.

01-999021-00 A0100 Installation Planning Guide 13
Chapter 2. Site Requirements
Sections in this chapter:
•2.1 “Site Size” page 14
•2.2 “Ceiling Height” page 15
•2.3 “Accessibility” page 15
•2.4 “Maximum Altitude” page 15
•2.5 “Structural Strength of Floor” page 15
•2.6 “Antivibration Bolt-Down Requirement” page 17
•2.7 “Floor Vibration Requirements” page 17
•2.8 “Magnetic Environment” page 18
•2.9 “Radio-Frequency Environment” page 19
•2.10 “Electrostatic Discharges” page 20
•2.11 “Ambient Temperature and Humidity” page 20
•2.12 “Ventilation” page 21
•2.13 “Helium and Nitrogen Refill Volumes and Intervals” page 21
Factors to consider when selecting the installation site include:
•Accessibility to the delivery location
•Site size and ceiling height
•Floor rigidity and structural strength
•Magnetic and radio frequency environment
•Ambient temperature and humidity
•Air ventilation
Each factor is covered in the sections in this chapter.

Chapter 2. Site Requirements
14 Installation Planning Guide 01-999021-00 A0100
2.1 Site Size
The site must be large enough to allow free access to all sides of the system and magnet for
operation, maintenance, and cryogenic service. Table 3 and Table 4 contain the dimensions
of the system components, and Chapter 6, “NMR Room Layouts,” contains floor plans
recommended for the NMR laboratory area or room. These plans are suggestions and not
specifications.
The cabinet is mounted on casters for easy movement, which allows the system to be placed
in the smaller rooms, as long as there is sufficient space for the cabinets to be moved to gain
access on all sides. For comfort and convenience, however, and to provide space for an
automatic sample changer or other options, the larger rooms shown in Chapter 6, “NMR
Room Layouts,” are highly recommended. The minimum dimensions do not include
compensation for external magnetic and rf interference that may be present. Each
individual site must be analyzed to ensure optimum system performance.
Table 3. Magnet Dimensions and Weights with Stand and Legs Attached*
Magnet type**
(MHz/mm) Height cm (in.) Width cm (in.) Depth cm (in.) Operational Weight kg (lb)
200/54 183 (72) 76 (30) 66 (26) 136 (300)
200/54 LH235 228 (90) 78 (31) 78 (31) 315 (693)
200/54 LH365 235 (92.5) 78 (31) 78 (31) 362 (796)
300/54 183 (72) 69 (27) 69 (27) 152 (335)
300/54 LH235 235 (92.5) 78 (31) 78 (31) 325 (715)
300/54 LH365 235 (92.5) 78 (31) 78 (31) 374 (823)
400/54 235 (92.5) 69 (27) 69 (27) 380 (836)
400/54 LH365 235 (92.5) 78 (31) 78 (31) 440 (968)
* Dimensions and weights are approximate and subject to change. Height dimensions do not include optional
accessories such as a siphon or plow-out tube.
** Long-hold magnets are designated by “LH” and a number that represents hold time in days.
* Dimensions and weights are approximate and subject to change.
Table 4. MERCURY-VX Cabinet and Optional Components Dimensions and Weights*
Component Height
cm (in.) Width cm (in.) Depth cm (in.) Weight kg (lb)
NMR Console 74 (29) 56 (22) 79 (31) 91 (200)
Autosampler 71 (28) 34.3 (13.5) 34.3 (13.5) 17 (38)
Work Table 67 (26.5) 183 (72) 76 (30) 48 (107)

2.2 Ceiling Height
01-999021-00 A0100 Installation Planning Guide 15
2.2 Ceiling Height
The ceiling must provide
sufficient headroom to insert
the liquid-helium transfer
tube into the magnet dewar
and the storage dewar. The
height of the ceiling (or that
part of the ceiling located
directly above the magnet)
withoutobstructions, suchas
lighting and heating ducts,
must be equal to or greater
than the minimum heights in
Table 5.
These ceiling minimums
allow enough headroom to
insert the standard helium
flutter tube and refill transfer
tubes into the magnet dewar.
They also allow use of the standard power stick for running up the magnet field. If one of
the larger capacity liquid-helium storage dewars is used with the magnet, however,
additional ceiling clearance may be necessary. In general, the ceiling height must be at least
twice the height of liquid helium storage dewar above the floor. Oxford magnets can be
provided with optional hinged top-loading components that reduces the minimum ceiling
height requirements. Contact Oxford for details.
Most of the antivibration (vibration isolation) systems do not change the ceiling height
requirements, except the 200/54 and 300/54 magnets or any magnet with both the sample
changer and an antivibration system. In these cases, add 20 cm (8 in.) to the ceiling height
requirements.
2.3 Accessibility
The site must also provide adequate access for the routine delivery of supply dewars
containing liquid helium and nitrogen.
2.4 Maximum Altitude
The maximum altitude during operation is 2440 m (8000 ft). The maximum during storage
or transport is 9100 m (30,000 ft).
2.5 Structural Strength of Floor
Contact a plant engineer, structural engineer, or registered civil engineer to confirm that the
magnet does not exceed the structural floor loading rating. The site floor must have
sufficient structural strength to support the combined weight of the spectrometer system
and moving equipment used during installation. Table 1 on page 11 and Table 2 on page 11
list shipping weights and dimensions. Table 3 and Table 4 list the weights and dimensions
of the system components after they are installed.
Table 5. Ceiling Height Minimum
Magnet Type*
(MHz/mm) Ceiling Minimum cm (in.)
With Optional
Helium Level Sensor
cm (in.)
200/54 225 (89.4) 236 (93)
200/54 LH235 314 (124) 314 (124)
200/54 LH365 314 (124) 314 (124)
300/54 225 (89.4) 236 (93)
300/54 LH235 314 (124) 314 (124)
300/54 LH365 314 (124) 314 (124)
400/54 314 (124) 314 (124)
400/54 LH365 314 (124) 314 (124)
* Long-hold magnets are designated by “LH” and a
number that represents hold time in days.

Chapter 2. Site Requirements
16 Installation Planning Guide 01-999021-00 A0100
MagnetWeight Distribution—No Antivibration System
This section describes weight distribution for magnets without antivibration systems. The
weights of the magnets, including stands, are given in Table 3.
200/54 and 300/54 magnets: The plan view of the magnet stand, illustrated in Figure 2A,
shows how the two rectangular legs contact the floor. The magnet stand has four adjustable
feet of 11.61 cm2(1.8 sq in.) each (total 45.16 cm2or 7 sq in.); therefore, the “point
loading” is relatively high. Because of the overall light weight of these magnets, however,
this is usually not a concern except in areas with a soft floor covering.
400/54 and all long-hold magnets: The stands for these magnets consist of three legs, as
shown in the plan view in Figure 2B. Since the legs are hollow, the actual surface contact
with the floor is only 167.74 cm2(26 sq in.) total, which creates relatively high “point
loading.” This is only a concern, however, if the floor covering is soft.
MagnetWeight Distribution—With Antivibration System
This section describes weight distribution for magnets installed with antivibration systems.
The weights of the magnets, with stands and antivibration systems, are listed in Table 3.
200/54 and 300/54 magnets without the SMS autosampler: The antivibration system
consists of a square table supported by three legs. See Figure 3 for leg placements and sizes.
3 in
24 in
21.5 in
AB
R = 12.875 in
leg pads O.D.
6.5 in.
Figure 2. Plan Views of Floor Contact Points of Magnet Stands
Magnet:
Magnets:
200/54
300/54 400/54 and LH magnets
(61 cm)
(7.62 cm)
(54.6 cm)
(32.7 cm)
(16.5 cm)
C
L
36 x 36 in
Platform
4.25 in (10.8 cm)
4.25 in (10.8 cm)
4.25 in
4.25 in
3 leg pads
6 x 6 in
Figure 3. Platform Antivibration System Leg Placements and Sizes
(10.8 cm)
(10.8 cm)
(15.2 x 15.2 cm)
(91.4 x 91.4 cm)

2.6 Antivibration Bolt-Down Requirement
01-999021-00 A0100 Installation Planning Guide 17
400/54 magnet without the SMS
autosampler: The antivibration
system for this magnet consists of
dampening equipment integrated
into the magnet legs, as illustrated in
Figure 4.
2.6 Antivibration Bolt-Down Requirement
For the 400/54 and all long-hold magnets with an antivibration system, the magnet legs
must be bolted to the floor. The antivibration system used with these magnets incorporates
the dampening mechanism as an integral part of the magnet leg. Although in normal
operation these antivibration legs are stable, for maximum safetyVarian requires that they
be anchored to the floor after installation. Anchoring to a floor is a standard procedure for
many types of equipment, and Varian expects that the customer’s plant or maintenance
personnel can usually accomplish it. The anchoring requires four 2.5-inch embedments for
each leg, anchored using 0.5-inch bolts. Details are provided in the manual MERCURY-VX
Accessory Installation; this note is provided for information purposes only.
2.7 Floor Vibration Requirements
The floor must be sufficiently rigid to reduce the vibration from adjacent dynamic loads to
a negligible level, defined as no single peak vibration greater than 20 µgacceleration, from
0 to 100 Hz. For sites exceeding this specification, antivibration equipment is necessary.
Sites with vibrations below 5 Hz are not recommended for the installation of any NMR
spectrometer. Use of the tire-type antivibration systems are not generally recommended at
sites with vibrations below 20 Hz or any site with large vibrations in the horizontal
directions. Ground floor or basement sites are generally preferred because the natural
resonant frequencies of most building structures are typically low frequencies and
horizontal in direction.
Measurement is made with an Ono Sokki Model CF 200 field FFT analyzer using 16 rms
time averages and a seismic accelerometer with 10 V/gsensitivity.
R = 21.125 in
3 leg pads on floor
9 x 9 in (22.9 x 22.9 cm)
Magnets:
Figure 4. Magnet Leg Antivibration
System Leg Placement and Sizes
400/54 and all LH
(53.7 cm)

Chapter 2. Site Requirements
18 Installation Planning Guide 01-999021-00 A0100
2.8 Magnetic Environment
Completely surrounding the magnet is a magnetic field called the fringe field. The fringe
fieldcontouraround the magnet is typically elliptical-spheroid shaped,longer at the magnet
axis. The first consideration in site planning is the interaction of the fringe field with objects
that come within its range. Read 5.1 “Safety Hazards of Strong Magnetic Fields” page 35
for details about magnetic field safety. Refer to 5.2 “Stray Field Plots” page 36 for specific
axial and radial stray field plots for each magnet.
Performance of the magnet and the quality of the results depend on maintaining the internal
quality of the magnetic field. Once the magnet has been placed, it is shimmed for small
variations in the field. The presence of the magnet places restrictions on use of areas within
the fringe field. Refer to Table 6 for examples of objects that affect or are affected by the
magnetic field. In general, do not locate the magnet next to a wall if the opposite side of the
wall is an area of general public access.
The site must have a minimum of environmental magnetic fields. Common sources of
magnetic interference are fluctuating loads on adjacent power lines, radio or television
transmissions, heavy-duty transformers, elevator motors, and similar electromagnetic
devices.Allow a separation of at least 4.6 m (15 ft) between the magnet and other high-field
electromagnets, elevators, or forklift trucks.
Similar separation distances must also be maintained between the magnet and any object
that can cause a detrimental effect on the field homogeneity or the structural integrity of the
magnet. Conditions that could interfere with the magnet include (but are not limited to) a
wall with metal sheathing or steel studding, a concrete support column with steel
Objects that affect the magnetic field
15 gauss line
or closer All ferromagnetic construction materials except small amounts of
steel reinforcing bar, normally not exceeding 11 kg/m2(2.5 lb/
ft2).
5 to 15 gauss Presence or movement of ferromagnetic objects over 45 kg (100
lb) such as pushcarts, hand trucks, gas cylinders, and chairs.
2 to 5 gauss Presence or movement of ferromagnetic objects over 450 kg
(1000 lb) such as small delivery trucks, automobiles, pallet
movers, forklifts, and elevators.
1 to 2 gauss Presence or movement of ferromagnetic objects over 34,000 kg
(75,000 lb) such as trains, and large trucks.
Objects affected by the magnetic field
15 gauss line
or closer Cardiac pacemakers, ferromagnetic implants, unrestrained
ferromagnetic objects such as tools, keys, electronic equipment,
analog watches, magnetic data storage media, and credit cards.
5 to 15 gauss Cardiac pacemakers, electronic equipment such as shielded
monitors, computers, shielded image intensifiers, and shielded
photomultiplier tubes.
2 to 5 gauss Very sensitive electronic equipment such as unshielded image
intensifiers, and photomultiplier tubes.
1 to 2 gauss Extremely sensitive electronic equipment such as linear
accelerators, electron microscopes, and monitors.
Table 6. Interaction Between Common Objects and a Magnetic Field

2.9 Radio-Frequency Environment
01-999021-00 A0100 Installation Planning Guide 19
reinforcing bars, and a storage area containing steel dewars for cryogenic storage. Each site
must be carefully analyzed to ensure optimum performance of the system.
Color monitors need to be degaussed in magnetic fields above 1 to 2 gauss. If the field is
greater than 5 gauss, color monitors may need additional shielding to prevent display
distortion. Sun computers and peripherals are also affected by the magnetic field.
WARNING: Cardiac pacemaker or metallic implant wearers must remain outside
the 5-gauss perimeter (see Chapter 4) around the magnet until safety
is clearly established.An NMR spectrometer system generates strong
magneticandelectromagneticfieldsthat can inhibitoperation ofsome
cardiac pacemakers, resulting in death or serious injury to the user.
Consult the user manual provided by the pacemaker manufacturer or
contact the pacemaker manufacturer to determine the effect on a
specific pacemaker.Varian provides signs with each system to warn
pacemaker wearers of this hazard. Post the signs according to 5.3
“Posting Requirements for Magnetic Field Warning Signs” page 39.
2.9 Radio-Frequency Environment
The site should be checked for radio-frequency interference (rfi) at or near the operating
frequencies of the spectrometer and most common nuclei (listed in Table 7). The level of
any interference should be attenuated to an electrical field strength of less than 150 µV/m
at the site of the magnet. Interference is not uncommon when two spectrometers are located
in the same room, referenced to the same power system, or operating at the same frequency.
Spectrometer frequency ranges
Proton Frequency
(MHz) Frequency Ranges (MHz)
200 20 to 200.050
300 30 to 300.075
400 40 to 400.125
Table 7. Spectrometer and Nuclei Operating Frequencies
Operating frequencies for most common MERCURY-VX nuclei
Nucleus 200 Magnet
(MHz) 300 Magnet (MHz) 400 Magnet (MHz)
1H 199.975 300.075 400.125
19F 188.743 282.301 376.427
31P 80.950 121.470 161.972
2H 30.699 46.063 61.425
13C 50.289 75.462 100.622
15N 20.266 30.408 40.545

Chapter 2. Site Requirements
20 Installation Planning Guide 01-999021-00 A0100
2.10 Electrostatic Discharges
When selecting an installation site, remember that electrostatic discharges can result in loss
of data and damage to the equipment. Electrostatic discharges under 8 kV generally do not
result in any perceivable errors or problems. Discharges over 8 kV, however, might result
in loss of data and/or errors that are perceivable to the operator. Discharges over 25 kV can
cause damage to the equipment.
To prevent electrostatic discharge damage, the system should be installed on vinyl-covered
floors and be properly grounded. If carpeting is installed, the carpet should contain only a
small percentage of nylon and be installed over antistatic pads.Alternatively, regular use of
a good quality antistatic spray will help considerably in alleviating the problem. Whenever
a circuit board must be touched or handled, the person should wear grounded wrist straps.
CAUTION: Many components in the system contain highly sensitive electronic
devices that must be protected from electrostatic discharges by
proper floor coverings and grounding practices. A person walking
across a nylon carpet or wearing synthetic fabrics can generate an
electrostatic charge that can discharge to the next object that is
touched.If this happens to be the system,the system components can
be damaged. An overly dry atmosphere also tends to create an
electrostatic charge. As with any system based on integrated circuits,
the system is susceptible to static spikes,both those generated on the
power line and those generated in the lab area, that must be
suppressed.
2.11 AmbientTemperature and Humidity
Table 8 lists the required ambient temperature ranges, temperature stability, and humidity
levels for the site. For optimal performance, the ambient temperature around the magnet
should not vary. Magnet homogeneity is optimized if the ambient temperature stability
listed in Table 8 is maintained for the duration of an experiment and between shimming.
Sunlight should never shine on the magnet or the area surrounding the magnet.
If necessary, install an air conditioning system to maintain these conditions. Keep the air
conditioning system operating continuously to stabilize the temperature and humidity
surrounding the spectrometer. The air flow from the room heating and cooling system must
not blow on the magnet. Do not allow moisture to collect on, in, or around the system.
Table 8. Ambient Temperature and Relative Humidity
Mode Temperature Relative Humidity
°C°F Noncondensing
Operational 17 to 24 60 to 75 20% to 80%
Optimum 20 68 40% to 60%
Stability ±1.1 ±2.0
Non-operational
Entire system –40 to 60 –40 to 140 8% to 80%
Floppy disks 10 to 52 50 to 125 8% to 80%