Varian UNITY INOVA NMR Manual

UNITY
INOVA
Solids Hardware
Installation
UNITY
INOVA NMR Spectrometer Systems
Pub. No. 01-999044-00, Rev. C0501

UNITY
INOVA
Solids Hardware
Installation
UNITY
INOVA NMR Spectrometer Systems
Pub. No. 01-999044-00, Rev. C0501
NOTICE: Varian, Inc. was acquired by Agilent
Technologies in May 2010. This document is provided
as a courtesy but is no longer kept current and thus
will contain historical references to Varian. For more
information, go to www.agilent.com/chem.

UNITY
INOVA Solids Hardware Installation
UNITY
INOVA NMR Spectrometer Systems
Pub. No. 01-999044-00, Rev. C0501
Applicability of manual:
Installation of the solids modules on Varian
UNITY
INOVA NMR spectrometers:
Wideband NMR Module (Part No. 01-903007-00), Wideline Solids Module
(00-990488-0x), CP/MAS Solids Module (Part Nos. 00-990402-04, 00-990403-04,
00-990404-04), CRAMPS/Multipulse Solids Module (Part No. 00-990487-0x)
Revision history:
A0896 – Initial release as Pub. No. 87-195482-00
A0297 – Updated for VNMR 5.3
A0398 – Initial release as Pub. No. 01-999044-00
B1200 – Pneumatics/Tachometer Box, Rotor Speed Controller Upgrade Kit (Part No.
01-903862-00) for manual the Pneumatics/Tachometer Box, Rotor Synchronization
(Part No. 01-903729-00), and Rotor Speed Control (Part No. 01-903732-00) installation
and test procedures moved to Pneumatic/Tachometer Box Installation manual (01-
999179-00 Rev A1200).
C0501 – Moved low-temperature VT chapter to 01-999109-00, ECO 9135
Technical contributors: Frits Vosman, Dave Rice, Laima Baltusis, Ron Haner
Technical writers: Dan Steele, Everett Schreiber
Technical editor: Dan Steele
Copyright  2001 by Varian, Inc.
3120 Hansen Way, PaloAlto, 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.

01-999044-00 C0501
UNITY
INOVA Solids Hardware Installation
3
Table of Contents
Safety Precautions............................................................................................. 7
Introduction ...................................................................................................... 11
Chapter 1. Getting Started.............................................................................. 13
1.1 Solids Modules Installation Guide ............................................................................. 14
CP/MAS Module ............................................................................................... 14
Wideline Module ............................................................................................... 14
CRAMPS/Multipulse Module ........................................................................... 14
Complete Solids Module ................................................................................... 14
Solid-State Variable Temperature System ......................................................... 14
1.2 Saving the Current Experiment .................................................................................. 15
1.3 Installing the Software ............................................................................................... 15
1.4 Configuring the Software ........................................................................................... 15
1.5 When the Installation is Finished ............................................................................... 15
Chapter 2. Wideband NMR Module................................................................ 17
2.1 Installing the Wideband NMR Module ...................................................................... 17
2.2 Testing the Wideband NMR Module ......................................................................... 18
500 kHz ADC Test ............................................................................................. 18
Wideband Module Test ...................................................................................... 18
Data Transfer Test .............................................................................................. 18
2.3 Pulse Sequences Proton Multipulse NMR ................................................................. 19
Chapter 3. CP/MAS Solids Module Installation ............................................ 21
3.1 Installing the CP/MAS Solids Module ...................................................................... 21
3.2 Testing the CP/MAS Solids System .......................................................................... 22
Testing the Amplifier ......................................................................................... 22
Adjusting Decoupler Field Strength .................................................................. 23
Chapter 4. Solids Cabinet Preparation and Installation .............................. 25
4.1 Preparing to Install the Solids Cabinet ....................................................................... 25
4.2 Installing the Solids Relay Driver Board ................................................................... 27
4.3 Installing the Solids Cabinet ...................................................................................... 29
4.4 Setting the AMT Amplifier Main Supply ................................................................... 30
Chapter 5. Wideline ModuleTests.................................................................. 31
5.1 Testing RF Transmitter Performance ......................................................................... 31
Liquids Observe Transmitter RF Signal Path .................................................... 31
Testing the Solids Observe Transmitter RF Signal Path .................................... 32
Decoupler Transmitter Performance .................................................................. 32
Solids Cabinet Status Light and Safety Switch Performance ............................ 33
5.2 Wideline NMR Tests .................................................................................................. 33
Wideline Solids Test Sample Kit ....................................................................... 33

Table of Contents
4
UNITY
INOVA Solids Hardware Installation 01-999044-00 C0501
Measuring 90° Pulse and System Sensitivity .................................................... 33
Sodium 90° Pulse and Sensitivity Measurement ............................................... 35
System Recovery Time ...................................................................................... 36
Wideline Spectral Appearance ........................................................................... 37
Chapter 6. CRAMPS/Multipulse ModuleTests.............................................. 43
6.1 Tuning the High-Power (Cavity) Amplifier ............................................................... 44
Initial Tuning of the Cavity Amplifier (CW Mode) ........................................... 44
Fine Tuning the Cavity Amplifier (Pulsed Mode) ............................................. 45
Tuning the Cavity Amplifier During Normal Operation ................................... 46
Adjusting the Overdrive Interlock .................................................................... 46
6.2 Testing RF Transmitter Performance ......................................................................... 47
Testing the Gating .............................................................................................. 48
Checking Decoupler Transmitter Performance ................................................. 48
Testing the Amplifier ......................................................................................... 48
Adjusting Decoupler Field Strength .................................................................. 49
6.3 Testing CRAMPS NMR ............................................................................................ 51
Testing Multipulse NMR ................................................................................... 51
Testing Basic NMR ........................................................................................... 51
Running the FLIPFLIP Pulse Sequence ............................................................ 53
Running the FLIPFLOP Pulse Sequence .......................................................... 53
Using MREV8 to Demonstrate Multipulse Operation ...................................... 56
Testing
1
H Wideline ........................................................................................... 56
Testing the CRAMPS Probe .............................................................................. 56
Index.................................................................................................................. 61

01-999044-00 C0501
UNITY
INOVA Solids Hardware Installation
5
List of Figures
Figure 1.
UNITY
INOVA NMR Console with Solids Cabinet ............................................................. 13
Figure 2. Decoupler Field γ B
2
....................................................................................................... 24
Figure 3. Solids Cabinet Open Front View .................................................................................... 26
Figure 4.
UNITY
INOVA Spectrometer, Front and Back Views .......................................................... 28
Figure 5. Solids Cabinet, Open Back View and the Relay Panel ................................................... 29
Figure 6. AC Input at Rear ofAMT M3000 Amplifier .................................................................. 30
Figure 7. High-PowerAmplifier Control Panel on Solids Cabinet ................................................ 32
Figure 8. Sample Spectrum, S/N = 249.6, 300-MHz System ........................................................ 34
Figure 9. Sample Sodium 90° Pulse and Sensitivity Spectrum, 300-MHz System ....................... 35
Figure 10. System Recovery Time, Sample FID Display .............................................................. 36
Figure 11. SSECHO FID for Malonic Acid-d
6
Using lsfid ........................................................... 37
Figure 12. Wideline SSpectrum of MalonicAcid-d
6
With compul='n' ......................................... 38
Figure 14.
23
Na FID of Sodium Standard (NaNO
3
) Starting at Top of Echo ................................ 38
Figure 13. Wideline Spectrum With compul='y' ............................................................................ 39
Figure 15. Wideline Spectrum With Sodium Solid Standard ........................................................ 40
Figure 16. Sample Spectrum From a Probe WithAcoustical Ringing .......................................... 41
Figure 17. Sample Spectrum With Sodium Background ............................................................... 41
Figure 18. Sample Spectrum With SodiumAnd Aluminium Background .................................... 42
Figure 19. High-Power (Cavity) Amplifier .................................................................................... 44
Figure 20. High-Power Amplifier Control Panel on the Solids Cabinet ....................................... 47
Figure 21. Decoupler Field Strength γ B
2
....................................................................................... 50
Figure 22. Standard
1
H Observe Spectrum Using the S2PUL Pulse Sequence ............................ 52
Figure 23. Receiver Recovery FID ................................................................................................ 53
Figure 24. Real Channel FID Pattern ............................................................................................ 54
Figure 27. FLIPFLOP desired FID ................................................................................................ 54
Figure 25. FLIPFLIP FID at Exact 90° Pulse ................................................................................ 55
Figure 26. FLIPFLOP “Tram Tracks” ........................................................................................... 55
Figure 28. Adipic Acid Spectrum .................................................................................................. 57
Figure 29. CRAMPS Adipic Acid Spectrum Using the MREV8 Pulse Sequence ........................ 58
Figure 30. CRAMPS Adipic Acid Spectrum Using the BR24 Pulse Sequence ............................ 59

List of Figures
6
UNITY
INOVA Solids Hardware Installation 01-999044-00 C0501
List ofTables
Table 1. Maximum γ B
2
Values ...................................................................................................... 25
Table 2. Dimensions of Complete Solids Cabinet and
UNITY
INOVA Cabinet ................................. 27
Table 3. Minimum Distances of
UNITY
INOVA Console from Magnet Centerline ........................... 29
Table 4. 90° Pulse and Signal-to-Noise Specifications ................................................................. 39

01-999044-00 C0501
UNITY
INOVA Solids Hardware Installation
7
Safety Precautions
The following warning and caution notices illustrate the style used in Varian manuals for
safety precaution notices and explain when each type is used:
WARNING: Warnings are usedwhen failureto observeinstructions or precautions
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
serious damage to equipment or loss of data.
Warning Notices
Observe the following precautions during installation, operation, maintenance, and repair
of the instrument. Failure to comply with these warnings, or with specific warnings
elsewhere in Varian manuals, violates safety standards of design, manufacturing, and
intended use of the instrument. Varian assumes no liability for customer failure to comply
with these precautions.
WARNING:
Persons with implanted or attached medical devices such as
pacemakers and prosthetic parts must remain outside the 5-gauss
perimeter from the centerline of the magnet.
The superconducting magnet system generates strong magnetic fields that can
affect operation of some cardiac pacemakers or harm implanted or attached
devices such as prosthetic parts and metal blood vessel clips and clamps.
Pacemaker wearers should consult the user manual provided by the pacemaker
manufacturer or contact the pacemaker manufacturer to determine the effect on
a specific pacemaker. Pacemaker wearers should also always notify their
physician and discuss the health risks of being in proximity to magnetic fields.
Wearers of metal prosthetics and implants should contact their physician to
determine if a danger exists. Refer to the manuals supplied with the magnet for
the size of a typical 5-gauss stray field. This gauss level should be checked after
the magnet is installed.
WARNING:
Keep metal objects outside the 10-gauss perimeter from the centerline
of the magnet.
The strong magnetic field surrounding the magnet attracts objects containing
steel, iron, or other ferromagnetic materials, which includes most ordinary
tools, electronic equipment, compressed gas cylinders, steel chairs, and steel
carts. Unless restrained, such objects can suddenly fly towards the magnet,
causing possible personal injury and extensive damage to the probe, dewar, and
superconducting solenoid. The greater the mass of the object, the more the
magnet attracts the object. Only nonferromagnetic materials—plastics,
aluminum, wood, nonmagnetic stainless steel, etc.—should be used in the area
around the magnet. If an object is stuck to the magnet surface and cannot easily
be removed by hand, contact Varian service for assistance.

SAFETY PRECAUTIONS
8
UNITY
INOVA Solids Hardware Installation 01-999044-00 C0501
Warning Notices ( continued )
Refer to the manuals supplied with the magnet for the size of a typical 10-gauss
stray field. This gauss level should be checked after the magnet is installed.
WARNING:
Only qualified maintenance personnel shall remove equipment covers
or make internal adjustments.
Dangerous high voltages that can kill or injure exist inside the instrument.
Before working inside a cabinet, turn off the main system power switch located
on the back of the console, then disconnect the ac power cord.
WARNING:
Do not substitute parts or modify the instrument.
Any unauthorized modification could injure personnel or damage equipment
and potentially terminate the warranty agreements and/or service contract.
Written authorization approved by aVarian, Inc. product manager is required to
implement any changes to the hardware of a Varian NMR spectrometer.
Maintain safety features by referring system service to a Varian service office.
WARNING:
Do not operate in the presence of flammable gases or fumes.
Operation with flammable gases or fumes present creates the risk of injury or
death from toxic fumes, explosion, or fire.
WARNING:
Leave area immediately in the event of a magnet quench.
If the magnet dewar should quench (sudden appearance of gasses from the top
of the dewar), leave the area immediately. Sudden release of helium or nitrogen
gases can rapidly displace oxygen in an enclosed space creating a possibility of
asphyxiation. Do not return until the oxygen level returns to normal.
WARNING:
Avoid liquid helium or nitrogen contact with any part of the body.
In contact with the body, liquid helium and nitrogen can cause an injury similar
to a burn. Never place your head over the helium and nitrogen exit tubes on top
of the magnet. If liquid helium or nitrogen contacts the body, seek immediate
medical attention, especially if the skin is blistered or the eyes are affected.
WARNING:
Do not look down the upper barrel.
Unless the probe is removed from the magnet, never look down the upper
barrel.You could be injured by the sample tube as it ejects pneumatically from
the probe.
WARNING:
Do not exceed the boiling or freezing point of a sample duringvariable
temperature experiments.
A sample tube subjected to a change in temperature can build up excessive
pressure,which canbreak the sample tube glassand causeinjury by flying glass
and toxic materials. To avoid this hazard, establish the freezing and boiling
point of a sample before doing a variable temperature experiment.

SAFETY PRECAUTIONS
01-999044-00 C0501
UNITY
INOVA Solids Hardware Installation
9
Warning Notices ( continued )
WARNING:
Support the magnet and prevent it from tipping over.
The magnet dewar has a high center of gravity and could tip over in an
earthquake or after being struck by a large object, injuring personnel and
causing sudden, dangerous release of nitrogen and helium gasses from the
dewar.Therefore, the magnet must be supported by at least one of two methods:
with ropes suspended from the ceiling or with the antivibration legs bolted to
the floor. Refer to the Installation Planning Manual for details.
WARNING:
Do not remove the relief valves on the vent tubes.
The relief valves prevent air from entering the nitrogen and helium vent tubes.
Air that enters the magnet contains moisture that can freeze, causing blockage
of the vent tubes and possibly extensive damage to the magnet. It could also
cause a sudden dangerous release of nitrogen and helium gases from the dewar.
Exceptwhen transferring nitrogenor helium, becertainthat the reliefvalves are
secured on the vent tubes.
WARNING:
On magnets with removable quench tubes, keep the tubes in place
except during helium servicing.
On Varian 200- and 300-MHz 54-mm magnets only, the dewar includes
removable helium vent tubes. If the magnet dewar should quench (sudden
appearance of gases from the top of the dewar) and the vent tubes are not in
place, the helium gas would be partially vented sideways, possibly injuring the
skin and eyes of personnel beside the magnet. During helium servicing, when
the tubes must be removed, carefully follow the instructions and safety
precautions given in the manual supplied with the magnet.
Caution Notices
Observe the following precautions during installation, operation, maintenance, and repair
of the instrument. Failure to comply with these cautions, or with specific cautions elsewhere
inVarian manuals, violates safety standards of design, manufacturing, and intended use of
the instrument. Varian assumes no liability for customer failure to comply with these
precautions.
CAUTION:
Keep magnetic media, ATM and credit cards, and watches outside the
5-gauss perimeter from the centerline of the magnet.
The strong magnetic field surrounding a superconducting magnet can erase
magnetic media such as floppy disks and tapes. The field can also damage the
strip of magnetic media found on credit cards, automatic teller machine (ATM)
cards, and similar plastic cards. Many wrist and pocket watches are also
susceptible to damage from intense magnetism.
Refer to the manuals supplied with the magnet for the size of a typical 5-gauss
stray field. This gauss level should be checked after the magnet is installed.

SAFETY PRECAUTIONS
10
UNITY
INOVA Solids Hardware Installation 01-999044-00 C0501
Caution Notices ( continued )
CAUTION:
Keep the PCs, (including the LC STAR workstation) beyond the 5-
gauss perimeter of the magnet.
Avoid equipment damage or data loss by keeping PCs (including the LC
workstationPC)well awayfromthe magnet. Generally, keep the PCbeyondthe
5-gauss perimeter of the magnet. Refer to the Installation Planning Guide for
magnet field plots.
CAUTION:
Check helium and nitrogen gas flowmeters daily.
Record the readings to establish the operating level. The readings will vary
somewhat because of changes in barometric pressure from weather fronts. If
the readings for either gas should change abruptly, contact qualified
maintenance personnel. Failure to correct the cause of abnormal readings could
result in extensive equipment damage.
CAUTION:
Never operate solids high-power amplifiers with liquids probes.
On systems with solids high-power amplifiers, never operate the amplifiers
with a liquids probe. The high power available from these amplifiers will
destroy liquids probes. Use the appropriate high-power probe with the high-
power amplifier.
CAUTION:
Take electrostatic discharge (ESD) precautions to avoid damage to
sensitive electronic components.
Wear a grounded antistatic wristband or equivalent before touching any parts
inside the doors and covers of the spectrometer system. Also, take ESD
precautions when working near the exposed cable connectors on the back of the
console.
Radio-Frequency Emission Regulations
The covers on the instrument form a barrier to radio-frequency (rf) energy. Removing any
of the covers or modifying the instrument may lead to increased susceptibility to rf
interference within the instrument and may increase the rf energy transmitted by the
instrument in violation of regulations covering rf emissions. It is the operator’s
responsibility to maintain the instrument in a condition that does not violate rf emission
requirements.

01-999044-00 C0501
UNITY
INOVA Solids Hardware Installation
11
Introduction
This manual describes the procedures used for installing and testing the following solids
modules on
UNITY
INOVA NMR spectrometers:
•CP/MAS Solids Module
•Wideline Solids Module
•CRAMPS/Multipulse Solids Module
Other Applicable Manuals
NMR Probes Installation manual.
Pneumatics/Tachometer Box Installation manual for installing the pneumatics/tachometer
box, rotor speed control, rotor synchronization, and pneumatics/tachometer box upgrade
for rotor speed control, are provided in .
Extended Duration and Low Temperature VT manual for installation of the extended
duration and low temperature options.
User Guide: Solid-State NMR for in nformation for operating solids systems.
UNITYINOVA Solids Schematics for solids systems schematics.
Conventions Used in the Manual
The following notational conventions are used throughout all VNMR manuals:
•Characters in courier (typewriter-like characters) are used for UNIX or VNMR
commands, parameters, directories, and file names in the text of the manual; for
example:
The shutdown command is in the /etc directory.
•Characters in courier are also used to show screen output; for example:
Self test completed successfully
•Italic characters are used for text displayed on the screen that is not the same every
time; for example,
Abort at some_address
means the value of some_address depends upon when the abort command is
made—what you might see on the screen is a message like this:
Abort at 47F82
•Because pressing the Return key is required at the end of almost every command or
line of text you type on the keyboard, use of the Return key is mentioned only in cases
where it is not used. This convention avoids repeating the instruction “press the Return
key” throughout most of this manual.
Except for a few commands entered from UNIX, the commands in this manual are invoked
in theVNMR window environment.Although someVNMR commands (such as echo and
vi) have the same name as UNIX commands, the VNMR and UNIX syntax is always
different.

Introduction
12 UNITYINOVA Solids Hardware Installation 01-999044-00 C0501

01-999044-00 C0501 UNITYINOVA Solids Hardware Installation 13
Chapter 1. Getting Started
This manual describes the procedures used for installing and testing the following solids
modules on UNITYINOVA NMR spectrometers:
•CP/MAS Solids Module
•Wideline Solids Module
•CRAMPS/Multipulse Solids Module
Figure 1 shows the UNITYINOVA NMR console next to the solids cabinet.
This chapter provides information about how to proceed through this manual for different
combinations of solids hardware. Also in this chapter is information about what to do
before the installation is started.
320
620
620
Figure 1. UNITYINOVA NMR Console with Solids Cabinet

Chapter 1. Getting Started
14 UNITYINOVA Solids Hardware Installation 01-999044-00 C0501
1.1 Solids Modules Installation Guide
Listed below are the chapters in this manual that guide you in installing the different solids
modules. Work through the chapters, in the order listed, under the solids module you want
to install.
CP/MAS Module
•Complete the installation of the pneumatics/tachometer box, rotor synchronization,
and rotor speed control options as specified in the Pneumatics/Tachometer Box
Installation manual and Extended Duration and Low Temperature VT manual..
•Complete all of Chapter 3, “CP/MAS Solids Module Installation,” on page 21.
Wideline Module
•Complete all of Chapter 2, “Wideband NMR Module,” on page 17
•Complete all of Chapter 4, “Solids Cabinet Preparation and Installation,” on page 25.
•Complete all of Chapter 5, “Wideline Module Tests,” on page 31.
CRAMPS/Multipulse Module
•Complete the installation of the pneumatics/tachometer box, rotor synchronization,
and rotor speed control options as specified in the Pneumatics/Tachometer Box
Installation manual.
•Complete all of Chapter 2, “Wideband NMR Module,” on page 17
•Complete all of Chapter 4, “Solids Cabinet Preparation and Installation,” on page 25.
•Complete all of Chapter 6, “CRAMPS/Multipulse Module Tests,” on page 43.
Complete Solids Module
•Complete the installation of the pneumatics/tachometer box, rotor synchronization,
and rotor speed control options as specified in the Pneumatics/Tachometer Box
Installation manual.
•Complete all of Chapter 2, “Wideband NMR Module,” on page 17
•Complete all of Chapter 4, “Solids Cabinet Preparation and Installation,” on page 25.
•Complete all of Chapter 5, “Wideline Module Tests,” on page 31.
•Complete all of Chapter 6, “CRAMPS/Multipulse Module Tests,” on page 43.
Solid-StateVariableTemperature System
•Complete all of Extended Duration and Low Temperature VT manual. manual and the
installation of the pneumatics/tachometer box, rotor synchronization, and rotor speed
control options as specified in Pneumatics/Tachometer Box Installation.

1.2 Saving the Current Experiment
01-999044-00 C0501 UNITYINOVA Solids Hardware Installation 15
1.2 Saving the Current Experiment
Before starting the installation, we recommend saving the current experiment, which is
exp1. Enter jexp1 svf(file), where file is the name of the file to be saved.
1.3 Installing the Software
1. If the system is currently running the latest version of Solaris orVNMR (5.2 or 6.1)
software, skip to the next section and log in as vnmr1.
Ifthe system isnot running thelatest versions of SolarisandVNMR software,follow
the procedures in VNMR, Solaris, and SunOS Software Installation Manual to
upgrade to the latest versions.
2. Boot up the system.
1.4 Configuring the Software
The rotor synchronization, wideline, CRAMPS/multipulse, and complete solids modules
require you to configure the NMR system as described below.
1. Whenbootup isfinished, login asvnmr1 (you may need to request a passwordfrom
the user):
login: vnmr1
password:
2. After VNMR has started, enter the VNMR command config.
3. Use the VNMR CONFIG window to configure the system.VNMR configuration,
including details on changing the “Max Spectral Width” and “Rotor Sync” system
parameters, is described in the VNMR and Solaris SunOS Software Installation
manual.
4. Enter rts(file) su load='n', where file is the name of the file holding
the shim values, to retrieve the shim values. Use the same file name that was used for
the svf command during shutdown.
1.5 When the Installation is Finished
All replaced items from the system and all unused items from the hardware installation kit
must be packaged and returned to Varian.

Chapter 1. Getting Started
16 UNITYINOVA Solids Hardware Installation 01-999044-00 C0501

01-999044-00 C0501 UNITYINOVA Solids Hardware Installation 17
Chapter 2. Wideband NMR Module
Install the Wideband NMR Module (01-903007-00) according to the following procedure.
The Wideband NMR Module is a board that includes two 5-MHz 12-bit ADCs and 2 MB
of onboard memory.
CAUTION: The following installation involves handling static sensitive
equipment—PROMs and printed circuit boards.Take all precautions
necessary to suppress electrostatic spikes and discharges near the
devices:stand on antistatic pads,wear natural fiber materials,and use
a grounded antistatic wristband before touching any equipment, and
do not place other boards or paper on top of boards and so on.Failure
to suppress electrostatic discharges can result in permanent damage
to components.
2.1 Installing the Wideband NMR Module
1. Make sure the power is off in both the digital and rf card cages.
2. Install the Wideband NMR Module in the digital card cage in the slot to the right of
the 500-kHz ADC board.
Use the usual antistatic precautions and be careful that the small surface-mount
components on the solder side of the board do not catch on 500-kHz ADC board
front panel.
3. Route the two BNC cables (00-958298-10 provided in the kit) through the cable path
on the left of the rf card cage and through the right of the digital card cage. Connect
the cables as follows:
•Connect one cable from J1 on theWideband NMR Module to WB CHA (J246)
on the Observe Receiver module.
•Connect the other cable from J2 on the SolidsADC to WB CH B (J247) on the
Observe Receiver module.
4. Make the following connections:
a. Remove the CTC cable from the DAC board and connect the SMB Tee (58-
180018-00) in its place on the DAC board.
b. Connect the CTC cable to one side of the SMB Tee.
c. Connect cable (00-992897-04) between the other side of the SMB Tee and J5
on Solids ADC board.
5. Turn the power back on to the digital and rf card cages.
6. For VNMR 5.2F only, install the software patch as follows:
a. Log in a vnmr1 and insert the software patch CD-ROM.
b. Open File Manager and click on the File Manager window for the CD-ROM.

Chapter 2. Wideband NMR Module
18 UNITYINOVA Solids Hardware Installation 01-999044-00 C0501
c. Double click on the loadpatch icon. Read the instructions associated with
the installation. The installation may take several minutes.
An alternative to using File Manager is to use a Shell Tool. Open a Shell Tool,
change to the /cdrom directory and enter ./loadpath.
7. Configure VNMR (CONFIG) to have the maximum spectral width of 5 MHz.
8. Go to the next section to test the Wideband NMR Module.
2.2 Testing the Wideband NMR Module
For the following tests disconnect the probe from the preamplifier and terminate the port on
the preamplifier with a 50 ohm load. Set tpwr=0.0 and pw=0 to avoid applying power to
the load.
500 kHz ADCTest
Recall an s2pul parameter set. Enter nt=1 sw=100 np=8k tpwr=0 pw=0 go.
If the run terminates with an error “np not equal to number of points”check
the cable connections that were just made.
Wideband ModuleTest
Enter sw=5e6 np=8k go. If no errors occur, enter wft and inspect the spectrum.
The noise pattern should be approximately symmetric and contain no spurious signals. The
noise level at ±2.5e6 Hz should be about 1/3 that at the center.
If errors occur check the cable connections. If no errors or spurious signals occur the
installation is complete.
DataTransferTest
The wideband module makes it possible to acquire data faster than the computer can store
it. A fifo underflow will then occur. VNMR 5.3 and later software warns when this might
happen and suggests a d0 or d1 value that will avoid the problem.
For a 1D acquisition with bs='n', data transfer from the Wideline NMR Module to the
Sun occurs at the end of the run. Acquisition of data with the maximum np (256k for the
beta boards) and d1=0 is possible.
For UNITYINOVA when bs>0, during arrayed or 2D operation or during real-time display of
acquisition, the data-transfer between theWideband NMR Module and the Sun takes place
during the d1 delay period. The minimum value of d1 (required to complete the transfer)
is determined by the number of points, np, and the speed of data-transfer, which depends
on the amount of memory on theWideline NMR Module. Incomplete transfer causes a fifo-
underflow error. The table below shows typical values of d1 versus np for the current beta
boards (1 MB of memory). Released boards will have 2 MB. They will run with faster data-
transfer rates and trap for most fifo-underflow conditions.
np bs d1(s)
>64k >0, acqi, 2D, or array operation unreliable
64k >0, acqi, 2D, or array 0.4
32k >0, acqi, 2D, or array 0.2

2.3 Pulse Sequences Proton Multipulse NMR
01-999044-00 C0501 UNITYINOVA Solids Hardware Installation 19
Operation with a shorter d1 may cause an error (fifo underflow) and halt the acquisition. If
an underflow error occurs, decrease np or increase d1. Run with bs='n' if possible. Once
a fifo underflow error has been generated it is sometimes necessary to run one scan
successfully with a small number of points (say 2k) before continuing.
2.3 Pulse Sequences Proton Multipulse NMR
The pulse sequence source files flipflop.c, br24.c, cylbr24.c, mrev8.c, and
cylmrev8.c must be modified to function with UNITYINOVA and VNMR 5.2F.
For UNITYINOVA, the receiver is off by default (it is on for UNITYplus).When using explicit
acquisition, the receiver is turned on with the beginning of the 'acquire' statement. For
CRAMPS, this is too late—the receiver must be turned on at the beginning of the delay
'dtau'.
Place rcvron() before the delay(dtau) or delay(dtau + tau) and before
rcvroff() after the acquire statement in each sequence.
16k >0, acqi, 2D, or array 0.1
8k >0, acqi, 2D, or array 0.05
np bs d1(s)