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minispec
minispec mq-Series
User Manual
Version 001
Innovation with Integrity
●
AIC
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Copyright © by Bruker Corporation
All rights reserved. No part of this publication may be reproduced, stored in a retrieval
system, or transmitted, in any form, or by any means without the prior consent of the
publisher. Product names used are trademarks or registered trademarks of their respective holders.
This manual was written by
AIC
© October 20, 2015 Bruker Corporation
P/N: E1400011
For further technical assistance for this product, please do not hesitate to contact your
nearest BRUKER dealer or contact us directly at:
Bruker Corporation
Am Silberstreifen
76287 Rheinstetten
Germany
Phone: +49 721-5161-6155/+1 978-667-9580
E-mail: minispec.SLS@bruker.com
Internet: www.bruker.com
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Contents
E1400011_1_001 3
Contents
1 About This Manual .............................................................................................................................5
1.1 Policy Statement .................................................................................................................5
1.2 Symbols and Conventions ..................................................................................................5
2 Safety...................................................................................................................................................7
2.1 Intended Use.......................................................................................................................7
2.2 Qualified Personnel.............................................................................................................7
2.3 Correct Usage.....................................................................................................................7
2.4 Electrical Safety ..................................................................................................................8
2.5 Lifting Safety .......................................................................................................................9
2.6 Personal Safety...................................................................................................................9
2.6.1 Safety for Persons Wearing Pacemakers ........................................................................... 9
2.6.2 Safety During Cryogen Refilling........................................................................................10
2.6.3 Safety When Working with VT Probe Systems.................................................................11
2.6.4 Safety When Working with Glassware..............................................................................11
3 Transport, Packaging and Storage .................................................................................................13
3.1 Symbols on the Packaging ...............................................................................................13
3.2 Inspection at Delivery........................................................................................................14
3.3 Packaging .........................................................................................................................14
3.4 Storage .............................................................................................................................15
4 Technical Data ..................................................................................................................................17
4.1 General Information ..........................................................................................................17
4.2 Connection Values............................................................................................................18
4.3 Operating Conditions ........................................................................................................19
4.4 Rating Plate ......................................................................................................................20
5 Introduction.......................................................................................................................................21
5.1 Improvements ...................................................................................................................22
5.2 Siting Considerations ........................................................................................................22
5.2.1 Environmental Considerations .......................................................................................... 23
5.3 Installation of the minispec mq-Series ..............................................................................24
5.3.1 Unpacking the System ......................................................................................................25
5.3.2 Electronic Control and the Magnet Unit Connections .......................................................27
5.3.3 Electronic Control, Magnet and Gradient Unit Connections .............................................28
5.4 Specifications mq-Series ..................................................................................................29
5.4.1 Weights and Dimensions ..................................................................................................29
5.4.2 Electrical Specifications ....................................................................................................29
5.5 Interpretation of the LEDs .................................................................................................30
5.5.1 mq-Series Systems...........................................................................................................30
5.6 Calibration Samples Hatch and Probe Exchange.............................................................31
6 Getting Started..................................................................................................................................33
6.1 Software Installation..........................................................................................................33
6.2 Connecting the PC to the minispec for the First Time ......................................................34
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Contents
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6.2.1 Direct Cable Connection ................................................................................................... 34
6.2.2 Connection to a Network...................................................................................................35
6.3 Wake-up State of the minispec.exe Software ................................................................... 35
6.4 Configuration of the Software, the Welcome Box .............................................................35
6.4.1 Selecting Applications and Connections...........................................................................36
6.4.2 Changing Analyser Type and Calibration Permission.......................................................36
6.5 General Measurement Handling ....................................................................................... 36
6.6 List of Standard Applications ............................................................................................37
7 The minispec Standard Windows ...................................................................................................39
7.1 The Signal Window ...........................................................................................................39
7.2 The Results Window ......................................................................................................... 39
7.3 The Spreadsheet Window.................................................................................................40
7.3.1 Execution of Spreadsheets ...............................................................................................40
7.3.2 Saving Spreadsheets........................................................................................................40
7.3.3 Monitoring .........................................................................................................................40
8 The minispec Menu Functions ........................................................................................................41
8.1 The Bars ...........................................................................................................................41
8.2 The File Menu ...................................................................................................................42
8.3 The Edit Menu...................................................................................................................45
8.4 The minispec Menu...........................................................................................................46
8.5 The Measurement Menu...................................................................................................49
8.6 The Parameter Menu ........................................................................................................51
8.6.1 The Acquisition Parameter Table Command .................................................................... 51
8.6.2 The Application Configuration Table Command ...............................................................53
8.6.3 The Acquisition Pre-Delay Time command.......................................................................54
8.6.4 The Repetitive Measurement Settings Command ............................................................54
8.7 The View Menu .................................................................................................................54
8.8 The Process Menu............................................................................................................58
8.9 The Window Menu ............................................................................................................59
8.10 The Help Menu .................................................................................................................60
9 The Experiment Editor ExpSpel for the mq-Series .......................................................................61
10 Basic NMR Principles.......................................................................................................................63
11 Maintenance......................................................................................................................................65
11.1 Cleaning............................................................................................................................65
12 Dismantling and Disposal................................................................................................................67
12.1 Dismantling .......................................................................................................................67
12.2 Disposal ............................................................................................................................67
13 Contact ..............................................................................................................................................69
List of Figures...................................................................................................................................71
Index ..................................................................................................................................................73
Page 5
About This Manual
E1400011_1_001
5
1 About This Manual
This manual enables safe and efficient handling of the device.
This manual is an integral part of the device, and must be kept in close proximity to the
device where it is permanently accessible to personnel. In addition, instructions concerning
labor protection laws, operator regulations tools and supplies must be available and adhered
to.
Before starting any work, personnel must read the manual thoroughly and understand
its contents. Compliance with all specified safety and operating instructions, as well as local
work safety regulations, are vital to ensure safe operation.
The figures shown in this manual are designed to be general and informative and may not
represent the specific Bruker model, component or software/firmware version you are
working with. Options and accessories may or may not be illustrated in each figure.
1.1 Policy Statement
It is the policy of Bruker to improve products as new techniques and components become
available. Bruker reserves the right to change specifications at any time.
Every effort has been made to avoid errors in text and figure presentation in this publication.
In order to produce useful and appropriate documentation, we welcome your comments on
this publication. Support engineers are advised to regularly check with Bruker for updated
information.
Bruker is committed to providing customers with inventive, high quality products and services
that are environmentally sound.
1.2 Symbols and Conventions
Safety instructions in this manual are marked with symbols. The safety instructions are
introduced using indicative words which express the extent of the hazard.
In order to avoid accidents, personal injury or damage to property, always observe safety
instructions and proceed with care.
DANGER
DANGER indicates a hazardous situation which, if not avoided, will result in
death or serious injury.
This is the consequence of not following the warning.
1. This is the safety condition.
u This is the safety instruction.
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About This Manual
6 E1400011_1_001
WARNING
WARNING indicates a hazardous situation, which, if not avoided, could result
in death or serious injury.
This is the consequence of not following the warning.
1. This is the safety condition.
u This is the safety instruction.
CAUTION
CAUTION indicates a hazardous situation, which, if not avoided, may result in
minor or moderate injury or severe material or property damage.
This is the consequence of not following the warning.
1. This is the safety condition.
u This is the safety instruction.
NOTICE
NOTICE indicates a property damage message.
This is the consequence of not following the notice.
1. This is a safety condition.
u This is a safety instruction.
SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS are used for control flow and shutdowns in the event
of an error or emergency.
This is the consequence of not following the safety instructions.
1. This is a safety condition.
u This is a safety instruction.
This symbol highlights useful tips and recommendations as well as
information designed to ensure efficient and smooth operation.
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Safety
E1400011_1_001
7
2 Safety
This manual contains notices which should be observed to ensure your own personal safety
as well as to protect the spectrometer and the connected equipment.
2.1 Intended Use
The minispec is a pulsed time-domain NMR analyzer used for the monitoring of NMR
receptive nuclei, particularly hydrogen, fluorine and phosphorus, but sometimes other nuclei.
This product is intended to be used solely for measurements on industrial samples. The
minispec has not been tested for compliance with regulatory agencies for human subject
exposure to radio frequency irradiation. Although no indication that any danger exists, under
no circumstance is this product intended for measurements on humans.
2.2 Qualified Personnel
The minispec may only be set up and operated in conjunction with the instructions in this
manual. Only qualified personnel should be allowed to work on this equipment. The primary
installation, maintenance and repair of the minispec may only be carried out by personnel
which are authorized by BRUKER.
All repairs, adjustments and alignments performed on any components of the minispec must
be carried out strictly in accordance with the established safety practices and standards of
the country where the instrument is installed.
2.3 Correct Usage
This device and its components may only be used in the way discussed with a BRUKER
specialist and in connection with devices or components from other manufacturers which
have been approved or recommended by BRUKER.
Note: This product can only function correctly and safely if it is transported, stored, set up
and installed correctly, and operated and maintained as recommended by BRUKER.
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Safety
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2.4 Electrical Safety
There is no danger of electrical shock during routine operation of the spectrometer, however
the following precautions must be followed to assure user safety and protection of the
instrument.
WARNING
Electrical hazard from electrical shock
A life threatening shock may result when maintenance is performed.
u Place the mains power switch in the OFF position (direction labeled "0" on the switch).
u Disconnect the device from the electrical power supply before maintenance. Use a
voltmeter to verify that the device is not under power!
u Be sure that the power supply cannot be reconnected without notice.
u Ensure that all warning labels are in place.
u Only trained personnel should carry out maintenance.
The safety precautions applicable to any electronic device connected to AC power must be
observed.
Always use the power cable that is delivered with the product.
If replacement of the power cable is necessary, make sure that the ratings with regard to the
power consumption of the device are suitable.
WARNING
Electrical hazard from stored electrical charge
A life threatening shock or material damage may result from a stored electrical charge.
Never touch electrical contacts or semiconductor chips with any object (conductive or nonconductive) unless all of the following conditions are met:
u The power switch is off.
u The power plug is disconnected from either the power socket or the main power socket
on the spectrometer.
u The conductive object and you are grounded.
ð This precaution prevents the possibility of electrical shock from stored charge within the
power supply circuitry or the transfer of static charge that can damage semiconductor
chips.
Note: No other components within the spectrometer should be touched (even with the power
off) without first contacting a Bruker service representative to obtain all necessary
instructions, to ensure user and spectrometer safety.
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Safety
E1400011_1_001
9
2.5 Lifting Safety
The standard magnet unit may weigh up to 150 kg depending on the type of the minispec
Analyzer, to ensure safety the follow safety instructions must be followed:
CAUTION
Risk of injury from lifting heavy objects.
The unit is very heavy and may lead to injury when lifting.
u Do not attempt to lift the unit over the edge of the carton, remove the carton first.
u Do not attempt to lift the unit on your own or without necessary precaution against
injury.
u Use a hoist if available.
u Follow the step-by-step instructions in the installation section of this manual.
2.6 Personal Safety
2.6.1 Safety for Persons Wearing Pacemakers
The instrument contains strong magnetic fields, some of which extend beyond the magnet
unit house (see stray field diagram below). These pose no danger to routine users, but are
hazardous to persons with heart pacemakers or other medical implantations.
WARNING
Danger to life from strong magnetic fields!
Strong magnetic fields may cause serious injuries or death and significant damage to
property.
u Persons fitted with heart pacemakers must be kept away from the device. The
functionality of the heart pacemaker could be compromised.
u Persons with metal implants must be kept away from the device. Implants may heat up
or be subject to magnetic attraction.
u Ferromagnetic materials, tools, and electromagnets must be kept away from the
magnetic source. Such materials could be subject to magnetic attraction and may fly
around the room, injuring or killing people. Minimum distance 3 meters.
u Remove magnetic items (jewelry, watches, pens etc.) before carrying out maintenance
work.
u Keep electronic equipment away from the magnetic source. Such equipment could be
damaged.
u Keep storage media, credit cards etc. away from the magnetic source. Data could be
erased.
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Safety
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Example of a Stray Field Plot for a Typical 0.47T / 20 MHz Magnet
The above figure is an example of a stray filed plot for a typical 0.47T/20 MHz magnet, plots
for other frequencies are available in the Pre-installation Manual (included on the minispec
software CD or memory stick).
2.6.2 Safety During Cryogen Refilling
WARNING
Danger of injury due to burns from cold cryogens
Injury from burns may occur when coming in contact with cold cryogens.
u Avoid tipping over the liquid nitrogen container.
u Operators should be properly trained on the handling of liquid nitrogen.
u Warning signs should be in place on liquid nitrogen containers.
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Safety
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2.6.3 Safety When Working with VT Probe Systems
WARNING
Danger of injury due to burns (hot/cold) when working with VT probe systems
The operator may burn their hands or fingers when touching a very hot or cold sample, or
the top of the VT probe.
u Wear protective gloves while handling hot or cold samples.
u Wear protective gloves when working around the VT probe.
u Only trained personnel should be working with the VT probe system.
2.6.4 Safety When Working with Glassware
WARNING
Danger of injury from glassware or ceramics breakage!
Broken glassware or ceramics may cause minor injuries or material damage, but may also
result in a life threatening situation if hazardous substances are used.
u If glassware or ceramics breaks, refer to the corresponding precautions and cleaning/
disinfection instructions.
u Wear protective equipment.
u Perform all tasks with the glassware or ceramics carefully.
u Before carrying out any maintenance work, remove the samples and use dummy
samples if necessary.
u Strictly observe the correct sample adjustment, i.e. the maximum sample height.
u Always transport the glassware or ceramics with the cover, if applicable. Never turn the
glassware or ceramics upside down or on it’s side.
u The laboratory supervisor is responsible for:
ð Establishing and enforcing standard sample handling and cleaning procedures.
ð Establishing and enforcing the use of protective clothing and equipment.
ð Training laboratory personnel.
ð Preparing an emergency plan.
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Safety
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Transport, Packaging and Storage
E1400011_1_001
13
3 Transport, Packaging and
Storage
Installation, initial commissioning, retrofitting, repairs, adjustments or dismantling of the
device must only be carried out by Bruker Service or personnel authorized by Bruker.
Damage due to servicing that is not authorized by Bruker is not covered by your warranty.
3.1 Symbols on the Packaging
The following symbols are affixed to the packaging material. Always observe the symbols
during transport and handling.
Top The arrow tips on the sign mark the top of the
package. They must always point upwards;
otherwise the content may be damaged.
Fragile Marks packages with fragile or sensitive
contents.
Handle the package with care; do not allow the
package to fall and do not allow it to be
impacted.
Protect Against Moisture Protect packages against moisture and keep
dry.
Attach Here Lifting gear (lifting chain, lifting strap) must
only be attached to points bearing this symbol.
Center of Gravity Marks the center of gravity of packages.
Note the location of the center of gravity when
lifting and transporting.
Weight, Attached Load Indicates the weight of packages.
Handle the marked package in accordance
with its weight.
Permitted Stacking Load Indicates packages which are partially
stackable.
Do not exceed the maximum load-bearing
capacity specified on the symbol in order to
avoid damaging or destroying the content.
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Transport, Packaging and Storage
14 E1400011_1_001
Do not Damage Air-tight
Packaging
The packaging is air-tight. Damage to the
barrier layer may render the contents
unusable.
Do not pierce.
Do not use sharp objects to open.
Component Sensitive to
Electrostatic Charge
The packaging contains components which
are sensitive to an electrostatic charge.
Only allow packaging to be opened by trained
personnel.
Establish potential equalisation before
opening.
Protect from Heat Protect packages against heat and direct
sunlight.
Protect from Heat and
Radioactive Sources
Protect packages against heat, direct sunlight
and radioactive sources.
Table3.1: Symbols on the Packaging
3.2 Inspection at Delivery
Upon receipt, immediately inspect the delivery for completeness and transport damage.
Proceed as follows in the event of externally apparent transport damage:
• Do not accept the delivery, or only accept it subject to reservation.
• Note the extent of the damage on the transport documentation or the shipper's delivery
note.
• Initiate complaint procedures.
Note: Issue a complaint in respect to each defect immediately following detection. Damage
compensation claims can only be asserted within the applicable complaint deadlines.
3.3 Packaging
About Packaging
The individual packages are packaged in accordance with anticipated transport conditions.
Only environmentally friendly materials have been used in the packaging.
The packaging is intended to protect the individual components from transport damage,
corrosion and other damage prior to assembly. Therefore do not destroy the packaging and
only remove it shortly before assembly.
It is recommended to store the packaging for later use in the event that you need to return the
unit to Bruker.
Handling Packaging Materials
Dispose of packaging material in accordance with the relevant applicable legal requirements
and local regulations (see Dismantling and Disposal [}67]).
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Transport, Packaging and Storage
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15
3.4 Storage
Storage of the Packages
Store the packages under the following conditions:
• Do not store outdoors.
• Store in dry and dust-free conditions.
• Do not expose to aggressive media.
• Protect against direct sunlight.
• Avoid mechanical shocks.
• Storage temperature: 15 to 35 °C.
• Relative humidity: max. 60%.
• If stored for longer than 3 months, regularly check the general condition of all parts and
the packaging. If necessary, top-up or replace preservatives.
Note: Under certain circumstances, storage instructions may be affixed to packages which
expand the requirements specified here. Comply with these accordingly.
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Transport, Packaging and Storage
16 E1400011_1_001
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Technical Data
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4 Technical Data
4.1 General Information
No. Series Type Weight
(kg)
Length
(cm)
Width
(cm)
Heigth
(cm)
1 mq-Series mq60 145 65 75 33
2 mq-Series mq40 145 65 75 33
3 mq-Series mq20 Airgap 33 mm* 145 65 75 33
4 mq-Series mq20 Airgap 25 mm* 135 65 75 33
5 mq-Series mq20 Toothpaste Analyzer 105 65 75 33
6 mq-Series mq10 135 65 75 33
7 mq-Series mq7.5 155 65 75 33
8 mq-Series mq20 Airgap 33 mm with PGU* 170 65 100 33
9 mq-Series mq20 Airgap 25 mm with PGU* 160 65 100 33
10 mq-Series mq10 with PGU 160 65 100 33
11 mq-Series mq7.5 with PGU 180 65 100 33
12 mq-Series PGU only 25 65 25 33
Table4.1: Technical Data: General Information
All specifications above are without the PC. Weights and dimensions apply to the
instruments, not to the packaged systems.
* For configurations with a high temperature probe, an additional table is used. However, this
table is not considered in the specifications provided.
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Technical Data
18 E1400011_1_001
4.2 Connection Values
Electrical
No. Series Type ND/NE/NFVoltage/
VAC
Apparent
Power
Consumption
Maximum/VA
Circuit
Protection
Frequency
/Hz
1 mq-
Series
mq60 NF 100-240 300/250 3.15 AT
(2 pieces)
50-60
2 mq-
Series
mq40 NF 100-240 300/250 3.15 AT
(2 pieces)
50-60
3 mq-
Series
mq20 Airgap 33
mm*
NF 100-240 300/250 3.15 AT
(2 pieces)
50-60
4 mq-
Series
mq20 Airgap 25
mm*
NF 100-240 300/250 3.15 AT
(2 pieces)
50-60
5 mq-
Series
mq20
Toothpaste
Analyzer
NF 100-240 300/250 3.15 AT
(2 pieces)
50-60
6 mq-
Series
mq10 NF 100-240 300/250 3.15 AT
(2 pieces)
50-60
7 mq-
Series
mq7.5 NF 100-240 300/250 3.15 AT
(2 pieces)
50-60
8 mq-
Series
mq20 Airgap 33
mm with PGU*
NF 100-240*** 300/250 3.15 AT
(2 pieces)
50-60
9 mq-
Series
mq20 Airgap 25
mm with PGU*
NF 100-240*** 300/250 3.15 AT
(2 pieces)
50-60
10 mq-
Series
mq10 with PGU NF 100-240*** 300/250 3.15 AT
(2 pieces)
50-60
11 mq-
Series
mq7.5 with PGU NF 100-240*** 300/250 3.15 AT
(2 pieces)
50-60
12 mq-
Series
PGU only NF 110/230
factory set
300 2.5 A
(2 pieces)
50-60
Table4.2: Electrical Connection Values
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Technical Data
E1400011_1_001
19
4.3 Operating Conditions
Environment
No. Series Type Temperature
Range
Maximum/°C
Temperature
Range
Ideal/°C
Relative
Humidity
at 31°C,
Maximum/
%
Decreasing
Linear Till
Relative
Humidity <
50% at 40°C,
Maximum/%
IP
Safety
Class
1 mq-
Series
mq60 18-28 22-25 80 (non-
condensing)
< 50% IP20
2 mq-
Series
mq40 18-28 22-25 80 (non-
condensing)
< 50% IP20
3 mq-
Series
mq20 Airgap
33 mm*
18-28 22-25 80 (non-
condensing)
< 50% IP20
4 mq-
Series
mq20 Airgap
25 mm*
18-28 22-25 80 (non-
condensing)
< 50% IP20
5 mq-
Series
mq20
Toothpaste
Analyzer
18-28 22-25 80 (non-
condensing)
< 50% IP20
6 mq-
Series
mq10 18-28 22-25 80 (non-
condensing)
< 50% IP20
7 mq-
Series
mq7.5 18-28 22-25 80 (non-
condensing)
< 50% IP20
8 mq-
Series
mq20 Airgap
33 mm with
PGU*
18-28 22-25 80 (non-
condensing)
< 50% IP20
9 mq-
Series
mq20 Airgap
25 mm with
PGU*
18-28 22-25 80 (non-
condensing)
< 50% IP20
10 mq-
Series
mq10 with
PGU
18-28 22-25 80 (non-
condensing)
< 50% IP20
11 mq-
Series
mq7.5 with
PGU
18-28 22-25 80 (non-
condensing)
< 50% IP20
12 mq-
Series
PGU only 18-28 22-25 80 (non-
condensing)
< 50% IP20
Table4.3: Operating Environment
Description Manual Bruker Part
Number
minispec Software CD-ROM/
memory stick (Windows 7/Office
2013)
The minispec Pre-Installation manual is
available as a PDF document on this CD-ROM/
memory stick.
E1405378
Table4.4: minispec Software CD/Memory Stick
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Technical Data
20 E1400011_1_001
NormaI environmental conditions (CAN/CSA 61010-1-12; IEC 61010-1: 2010; ANSI/UL 61010-1)
• Indoor use only.
• Maximum operation altitude: 2000 m.
• Ideal operating temperature: 22-25 °C. Minimum operating temperature: 18°C maximum
operating temperature: 28°C humidity (non-condensing): 20-80%.
• Maximum relative humidity 80% for temperatures up to 31 or decreasing linearly to 50%
relative humidity at 40 °C.
• MAINS supply voltage fluctuations up to ±10% of the nominal voltage.
• TRANSIENT OVERVOLTAGES up to the levels of OVERVOLTAGE CATEGORY II.
• Pollution degree 2.
• Protection class IP20.
4.4 Rating Plate
The rating plate is located at the power input and includes the following information:
Figure4.1: The minispec MQ-Series Rating Plate
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Introduction
E1400011_1_001
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5 Introduction
The minispec is a benchtop Nuclear Magnetic Resonance (NMR) analyzer for detection of
hydrogen (1H), fluorine (19F), and other abundant NMR-active nuclei. Its common application
is in polymer, chemical and agrifood industry quality control and quality assurance (QC/QA),
where it is routinely used for fast, reproducible and non-destructive analysis. The minispec is
also used for a diverse range of applications in research and development (R&D) laboratories
in industry, universities, and medical research facilities.
This manual provides instructions on proper installation of the minispec and an introduction to
the use of the minispec hardware and software. Topics covered include:
• Installation of hardware (section Installation of the minispec mq-Series)
• Installation of software for WindowsTM 7 32-bit/64-bit (section Software Installation)
• Configuration (section Configuration of the Software, the Welcome Box)
• Proper operation of the system (section General Measurement Handling)
Once installation and configuration is complete, it is beneficial to read the software
introduction to familiarize yourself with the minispec capabilities. For installation procedures
you may also refer to the latest version of the Pre-Installation manual (booklet).
The software functions (NF systems) are discussed step by step, using pictures to help
familiarize the user with all of the accessible minispec features (sections The minispec
Standard Windows [}39] and The minispec Menu Functions [}41]).
Users who wish to program the minispec should refer to the chapter The Experiment Editor
ExpSpel for the mq-Series [} 61]). Finally, for a better understanding of the principles
involved, an introduction to the basics of NMR is provided in section Basic NMR Principles
[}63].
Figure5.1: The minispec mq Magnet Unit (left) and Electronic Control Unit (right)
The minispec.exe software is the standard software running on all mq-Series systems (NF
systems) and is described in this manual.
The minispec mq-Series analyzers can be operated with the minispec Plus software, which
is delivered optionally with the system. This is a standalone software package and there are
separate manuals available on the minispec software CD that explain the operation:
• minispec Plus Administration
Page 22
Introduction
22 E1400011_1_001
• minispec Plus Classic
• minispec Plus Chemometrics
• minispec Plus NoCalibration
• minispec Plus Tempering
5.1 Improvements
The minispec mq-Series is the fifth generation of benchtop pulsed NMR analyzers produced
by BRUKER. Since the first BRUKER minispec series was introduced in the early 1970’s,
there have been many improvements in hardware and software. Highlights of the mq-Series
minispec generation include:
• minispec control and user interface software operates under WindowsTM 7 32-bit/64-bit.
• All turn-key applications are included.
• Measurement monitoring is possible via a network-connected PC.
• Spreadsheet/database and statistics functions.
• Main hardware options:
– Rapid, easy and tool-free exchange of “intelligent” probes
– Broad-band excitation: 5-65 MHz
– Digital pulse attenuation
– Permanent magnet/probe systems up to 60 MHz (1H)
Note: Some of the features mentioned above may be optional.
The minispec mq-Series has been designed for easy use with routine QC/QA measurements
and is also suited for complex research work. As part of this design, BRUKER has developed
a user friendly software interface (minispec.exe), which is configurable and modular in design
to allow for all types of applications. The user can select from a number of user interface
layouts (see Changing Analyser Type and Calibration Permission [} 36]) to suit the
applications most commonly used in the intended work environment.
For features regarding the minispec Plus software, please refer to the corresponding software
manuals available on the CD/memory stick (see Introduction [}21]).
5.2 Siting Considerations
Place the units on a strong, level, non-magnetic benchtop surface, capable of supporting their
weight (refer to Weights and Dimensions). A minimum distance of 10cm should be allowed
between the back of the Electronic Control Unit and adjacent objects in order to ensure
sufficient air-cooling.
Since objects containing iron can influence the magnetic field inside the Magnet Unit, do not
locate the Magnet Unit within 1 m of large iron objects or within 2 m of moving metallic
objects.
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CAUTION
Accident or material damage hazard from falling or tilting instrument
Instrument may fall down or tilt during installation, retrofitting, dismantling, or while moving
on a cart.
u Use the carrying handles during lifting.
u When a table or cart is used, it should meet the requirements in the site planning guide.
u The instrument should be secured to the cart or table.
5.2.1 Environmental Considerations
The minispec should be used in areas free from direct sunlight, heat sources and power
cables.
A constant temperature is important for field stability and accurate reproduction of
measurement results.
The usual magnet temperature (if not indicated different) is 40°C for all instruments.
These temperatures have been selected because they are well above the expected ambient
(laboratory) temperatures and therefore allow accurate tempering of the minispec unit.
Tempering of the magnet and the console electronics is accomplished with a closed cycle
zero maintenance, air ventilation system, so that no external air is ventilated through the
console or the Analyzer Unit.
In some factory environments where dust may be a problem, it may be desirable to house the
minispec computer in a clean room or ventilated housing, which is protected from dust. The
Analyzer Unit can be placed nearby at a location more convenient for process personnel.
The instrument contains strong magnetic fields, some of which extend beyond the Analyzer
unit housing (see stray field diagram page 14-17). These pose no danger to routine users,
but are hazardous to persons with heart pacemakers or other medical implantations.
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WARNING
Risk to life due to high magnetic fields
A magnetic field of more than 0.5mT (5Gauss) is life-threatening for people with
pacemakers or active metal implants. Exposure to more than 8T can cause damage to
health. Duration of exposure (8h/day) above the limit of 200mT can cause damage to
health. Ferromagnetic tools in the magnetic field are significantly hazardous. Disks and
electronic devices may be damaged.
u Mark the magnetic field of more than 0.5mT (5Gauss) before start up.
u Keep people with active medical implants or heart pacemakers away from the 0.5mT
(5Gauss) area.
u The permanent workplace of employees must be outside the 0.5mT (5Gauss) area.
u Do not stay or work at magnetic fields of more than 8T.
u Prevent exposure of more than 200mT for more than 8h/day.
u Keep disks, credit cards and electronic devices away from the identified area.
u Do not use ferromagnetic tools or items within the identified area.
u Only use non-ferromagnetic transportation dewars or pressure cylinders for the
cryogenic agents.
u Only use non-ferromagnetic ladders or steps.
u Remove magnetic items (jewelry, watches, pens etc.) before carrying out maintenance
work.
WARNING
Danger of injury or material damage due to strong magnetic fields!
Injury or material damage may result due to the strong magnetic fields that can draw metallic
objects towards the magnet.
u DO NOT locate the instrument next to large iron-containing objects or near moving
metallic objects.
u DO NOT place any iron-containing object on the minispec magnet unit. Be aware that
the magnetic field can erase magnetic recording media such as computer diskettes or
credit cards.
u DO NOT place these items or clothing containing these items on the magnet unit.
u Leave the dust cover on the probe canal when the instrument is not in use.
5.3 Installation of the minispec mq-Series
In general, the minispec mq-Series consists of three units:
• Magnet Unit, containing the magnet system and the probe assembly
• Electronic Control Unit with the NMR electronics
• Standard PC user interface for measurement control, data processing, etc.
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Figure5.2: The minispec Magnet Unit (left) and Electronic Control Unit (right).
A number of optional accessories can be added and adapted for use: Gradient Unit (for
pulsed field gradient experiments), electronic balances, auto sampler, temperature control
baths and variable temperature control units, etc.
5.3.1 Unpacking the System
When unpacking the instrument ensure that all components listed in the packing list are part
of the delivery.
CAUTION
Danger of property damage due to improper handling.
The shipping container must remain in an upright position at all times. It has two
compartments separated by a wooden plate: an upper part, which contains the Electronic
Control Unit, and a lower part containing the Magnet Unit. The magnet unit is secured to the
shipping container from below with four bolts.
u DO NOT tilt the container when removing these bolts.
CAUTION
Accident or material damage hazard from falling or tilting instrument
Instrument may fall down or tilt during installation, retrofitting, dismantling, or while moving
on a cart.
u Use the carrying handles during lifting.
u When a table or cart is used, it should meet the requirements in the site planning guide.
u The instrument should be secured to the cart or table.
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CAUTION
Risk of injury from lifting heavy objects.
The unit is very heavy and may lead to injury when lifting.
u Do not attempt to lift the unit over the edge of the carton, remove the carton first.
u Do not attempt to lift the unit on your own or without necessary precaution against
injury.
u Use a hoist if available.
u Follow the step-by-step instructions in the installation section of this manual.
To unpack the system:
1. Use a 13 mm wrench to remove the four bolts from the bottom of the container.
2. Remove the shipping straps and open the container.
3. Remove the packing material from around the Electronic Control Unit.
4. Remove the Electronic Control Unit from the container, together with the wooden plate
that it is mounted on (do not tip!). Remove the four mounting bolts from below the plate
using a 13mm wrench. Once loose, remove the Electronic Control Unit and set it in a safe
location.
5. Remove the packing material from around the Magnet Unit. Remove the retaining screws
or nails from the bottom of the wooden pallet and detach the shipping carton.
6. While keeping it level, carefully lift the Magnet Unit from the pallet using the handles on
either side, and place it on a sturdy cart or benchtop.
When using a hoist, make sure the straps are capable of carrying the magnet´s weight and
are attached in such a way that the magnet cannot fall, slip, topple or turn while being
carried.
7. Once the magnet has been placed in it’s desired position, the handles can be retracted.
While keeping the handles pressed down, push them below the case (see figure, arrows 1
and 2).
Figure5.3: Handles on the Side of the Magnet Unit
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8. Remove and retain the clear plastic dust covers from each component of the minispec and
inspect them for damage.
9. If either unit appears to be damaged, contact your BRUKER representative immediately.
Due to accessories, consumables or optional units packaging may vary. Bruker will make
every effort to deliver the instrument damage free. Therefore, packaging needs to be adapted
to the specific customer order. Due to safety regulations, the system may be packed with
additional shielding elements or may be declared as dangerous goods.
5.3.2 Electronic Control and the Magnet Unit Connections
The connectors are located on the bottom of the back planes. Connect the two units as
shown in the figures below:
Figure5.4: Electronic Control and Magnet Units
1. Main power input. 3 to 5. Connections to the units.
2. Ethernet connection.
Here is an expanded view of the connections:
Figure5.5: Back Planes of the Electronic Control Unit (top) and Magnet Unit (bottom)
1. Mains Power Input 4. Interface to Gradient Unit
2. Ethernet (10 Base T) Connection 5. Interface to Electronic Control Unit
3. Interface to Magnet Unit 6. Interface to Gradient Unit
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5.3.3 Electronic Control, Magnet and Gradient Unit Connections
The recommended placement of the Gradient Unit in regards to the minispec is with the
Gradient Unit between Magnet and Electronic Control Unit. Cable connections have been
constructed with this layout in mind. The sketch and the photo of the back plane of the
Gradient Unit below indicate the cable connections between the units.
Figure5.6: Sketch of the Back View of the Connections from the Gradient Unit
3 to 8 and 9 to 5 Connections to Electronic Control Unit and Magnet Unit.
4 to 7 Gradient Trigger IN (dotted lines - cable number ‘E 140 1516‘).
10 to 6 Gradient Pulse OUT (dotted lines - cable number ‘E 140
1515‘).
Note: The gradient cables E1401515 and E1401516 must not be mixed up. Otherwise
damage to the minispec units may occur!
1 2
3
4
5 6
Figure5.7: Back View of the Gradient Unit
1. Gradient Trigger IN 4. Power ON/OFF
2. Magnet Unit IN 5. Magnet Unit OUT
3. Mains Power IN 6. Gradient Pulse OUT
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5.4 Specifications mq-Series
5.4.1 Weights and Dimensions
Electronic Control
Unit
Magnet Unit Gradient Unit
(optional)
Dimensions (W x H x
D) in cm
25 x 33 x 65 47 x 33 x 65 25 x 33 x 65
Weight (kg) 20 depends on magnet 25
5.4.2 Electrical Specifications
minispec mq-Series NF systems:
The instrument’s E-Box is specified for the following mains voltages (wideline):
• Input voltage range: 100 – 240 V AC 50/60 Hz.
• Fuse rating mq-Series NF:2 x 3.15 AT.
The gradient unit is specified as follows:
• Input voltage range: Either 220-240V or 110-120V (50/60 Hz) factory set.
• Fuse rating: 2 x 2.5 A.
Grounding
Grounding is vital for the safe operation of the instrument. Never operate with the grounding
conductor disconnected. If the local wiring does not provide a ground, an earth-to-chassis
connection must be added at the user’s location.
Note: Since the input voltage may be unstable in a laboratory environment, it is
recommended to connect the minispec to a separate circuit that is not used by any other
equipment. Furthermore, a voltage stabilizer or UPS may be required to avoid instrument
instabilities or other unexpected system behavior caused by a fluctuating input voltage.
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5.5 Interpretation of the LEDs
Users receive continuous indication of the status of the different units in the form of light
emitting diodes (LEDs), which are built into the front panel of the units.
5.5.1 mq-Series Systems
Electronic Control Unit
Right LED, connection status indicator:
• ON (green): PC communication to the Electronic Control Unit is OK.
• OFF: No communication between the Electronic Control Unit and the PC.
Left LED, status indicator:
• ON (green): The Electronic Control Unit is powered on and working.
• OFF: The Electronic Control Unit is not working.
Magnet Unit
Right LED, indicates the magnet temperature status:
• RED: Pre-heating.
• YELLOW: Transition to normal heating/temperature fine adjustment.
• GREEN: Temperature is OK.
Left LED, connection status indicator:
• ON (green): Communication between the Electronic Control Unit and Magnet Unit is OK.
• OFF: No communication between the Electronic Unit and Magnet Unit.
Gradient Unit (optional)
Right LED:
• ON (green): Gradient Unit is on standby.
• OFF: Gradient pulse execution.
Left LED, connection status indicator:
• ON (green): The gradient unit is powered on and working.
• OFF: The gradient unit is not working.
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5.6 Calibration Samples Hatch and Probe Exchange
The Magnet Unit cover has two outer hatches or doors.
• The first one is on the front panel of the unit and can be used to contain the calibration
samples. Pressing on the upper part of the hatch will unlock and open it.
• The second is the top hatch, which allows access into the minispec magnet compartment
and permits quick and tool-free exchange of probes.
To replace a probe the hatch at the top of the Magnet Unit must be opened:
1. Release the front hatch to expose the red button in the front of the unit.
2. Press the red button to release the top latch and open the hatch as far as it will go.
3. A second hinged lid, blue in color, will become visible. Lift this lid up and lean it against
the outer hatch.
WARNING
Danger of injury due to falling lid
The hinged lids may close unexpectedly during probe exchange causing injury to hands or
fingers.
u Ensure that the gas spring on the outer lid is operating correctly.
u The blue inner hinged lid does not have a gas spring, use extreme care when
exchanging the probe assembly.
4. The probe assembly is fixed with two quick-release fasteners. To release the fasteners,
lift up the D-rings until they snap into a vertical position, then use them to rotate the
fastener posts until released (refer to the figure below).
5. While grasping the D-rings, carefully pull upward to loosen the preamplifier connection
under the mounting plate, than raise the assembly (mounting bar with probe and
preamplifier attached) out of the magnet gap.
Figure5.8: Ring of the Quick-Release Fastener (left) and the Raising of the Probe Assembly (right)
1. Rings
2. Rotating the rings.
To open the fasteners, turn the rings (1) upward and rotate them (2)
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Replace the assembly by following the instructions in reversed order.
Intelligent probes were developed for the minispec mq-Series. When you exchange a probe,
the software will read the most important parameters (pulse length, resonance frequency)
from the probe itself. The software will prompt the user to confirm the settings. After
temperature stabilization it is recommended to run the Daily Check procedure. In certain
cases a fine tuning by running Update Settings (see The minispec Menu [}46]) is beneficial.
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6 Getting Started
In general, minispec systems which are delivered with a personal computer already have the
minispec software installed. In this case, the user can skip the software installation
instructions (see Software Installation [}33]) and proceed to the instructions on initialization
of the PC-to-minispec connection (see Connecting the PC to the minispec for the First Time
[}34]).
When a user provides their own personal computer, or if software needs to be reinstalled for
use with the minispec, refer to the installation instructions below.
The middle sections of this chapter describe how the user can configure the software
(minispec.exe) by selecting the analyzer type from among the list of pre-set types (see Wake-
up State of the minispec.exe Software [} 35]) and by setting the user level e.g. allow
calibrations or only measurements (section Configuration of the Software, the Welcome Box).
Later, a short introduction provides general instructions on how to run measurements (section
General Measurement Handling).
A list of all standard applications is added at the end of the chapter (section List of Standard
Applications).
6.1 Software Installation
Execute the following steps only if the PC has not been pre-configured for the
minispec.
1. Insert the installation CD in your drive, or when using a memory stick, insert the stick in a
USB port.
2. Open the Windows EXPLORER and check the media for a ReadMe.txt file. If a
ReadMe.txt file is available, follow the instructions provided in this file.
3. If not, execute the Setup file with a double click or select the setup entry with the right
mouse button and select Open in the displayed menu.
4. Follow the instructions in the Setup program.
´ The Setup program copies the files into the folder you specify during the setup
procedure.
5. To start the minispec.exe software, double click on the minispec.exe file in the main
folder. Alternatively, you can create a shortcut on the Windows desktop to the file
minispec.exe.
With the first start up, the configuration of the minispec software (minispec.exe) is set to the
QC-Analyzer. To change the settings refer to the section Wake-up State of the minispec.exe
Software [}35].
Optionally, the mq-Series instruments may be operated with the minispec Plus software, with
the above described minispec.exe software running in the background as an acquisition
server. Systems that are equipped with minispec Plus software will install this additional
program automatically. The manual minispec Plus Administration, together with the other
minispec Plus manuals, provide further details. These can be found on the minispec software
CD/memory stick in the folder Documentation.
Systems equipped with minispec Plus software do not necessarily need to start the
minispec.exe software before using minispec Plus. If the system is properly installed (refer to
the corresponding minispec Plus manual), then minispec Plus can be opened without first
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opening the minispec.exe software. However in some cases it might be useful to first run the
minispec.exe software to make sure there is a proper network connection from PC to the
minispec, then afterwards switch to minispec Plus program.
Please note that for proper installation of minispec Plus software further software
requirements may apply, refer to the corresponding minispec Plus manual for details.
6.2 Connecting the PC to the minispec for the First Time
6.2.1 Direct Cable Connection
1. If the software is running (e.g. after installation), then exit the minispec software.
2. Connect the PC to the minispec using the blue crossed-wire UTP-cable, which is
delivered with the minispec (10-Base-T with RJ45 connectors, see the figures in the
section Installation of the minispec mq-Series [}24]).
3. Power ON the instrument and computer.
4. If not already installed, use the Network entry in the Windows Control Panel to install a
TCP/IP protocol on your PC. The exact procedure for adding the TCP/IP protocol
depends on the Windows version that is used, refer to the Windows software
documentation for a detailed description.
5. Select TCP/IP ‘Properties’. Confirm or enter the following entries: IP-address:
192.168.1.2 Subnet-mask: 255.255.255.0
´ If other values are defined, alter them accordingly. Re-boot your computer.
6. Start the minispec software on the PC.
´ Some program information will be displayed for a short time, after which a Welcome
Box will be displayed. Entries in the select boxes indicate how the PC will attempt to
connect to the minispec console and what applications will be loaded.
7. Connect to the minispec electronic unit (mq-Series) using the indicated default serial
number NF0000 by clicking OK in the displayed Welcome Box.
´ Communication is attempted from the PC software over the TCP/IP to the CPU/
Ethernet controller in the console at the default IP address 192.168.1.1. Connection is
indicated at the top status line with the message, for example, Connected to NF3826.
The IP address of the console will be displayed in a small box on the bottom edge of
the program window.
´ If the connection with the default serial number NF0000 cannot be established, re-try
using the IP address ‘192.168.1.1’ instead of the default ‘NF0000’ from the Welcome
box settings.
8. If the connection still fails, make sure the cable is a crossed-wire twisted pair cable and
that it is connected properly.
´ If connection still does not succeed, then the problem may be due to incorrect IP
addresses or Subnet mask for the PC or the minispec. Normally the minispec console
is shipped with the default IP address set to 192.168.1.1 and a subnet mask of
255.255.255.0. However, in some circumstances the minispec console may be set to
other values (e.g. if a minispec has already been installed on a network, whereas
another IP address will be needed, or a PC is being exchanged, or the software had to
be reloaded on a fresh hard disk).
9. If a connection cannot be established and the setting of the console IP address is
suspect, the Internet web browser page contains information (see Help menu) on how to
reset the IP address, however please check with your local Bruker support for more
details, if necessary.
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6.2.2 Connection to a Network
A direct connection of the PC and minispec using the blue crossed-wire UTP cable is
recommended. When a connection to a network is desired, a second network car will help to
establish such a connection. The second network card allows the PC to be connected to the
network, while the direct connection from the minispec to the PC is still in place.
Notes:
In case of connection problems:
1. Double check the PC IP address and other network related entries.
2. Recheck if straight-through twisted pair cables are used, in this case they should not be
used.
´ Now, whenever you start the minispec software, contact to the minispec will be
established automatically.
6.3 Wake-up State of the minispec.exe Software
When the software starts, a general dialog is displayed concerning the software version and
the copyright. Then a Welcome Box opens and displays information about the configuration
of the system. The wake-up configuration is the configuration used with your last
minispec session. To continue with the same settings and start the minispec software click
OK. If you want to change the settings refer to the next section, Configuration of the
Software, the Welcome Box.
6.4 Configuration of the Software, the Welcome Box
The configuration of the system (i.e. the connected minispec, the selected applications, the
analyzer type, and the calibration permission) can be inspected and edited via the Welcome
Box. The Welcome Box can also be user configured. Users can control whether or not this
box will be opened on program start. This is done by selecting or deselecting the entry
Welcome Box in the pull-down menu View (see also The View Menu [} 54]). Deselecting
the item Display this Window on Startup will also turn off the Welcome Box when the box
appears on program start.
Figure6.1: The Welcome Box
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Several symbols, entries and buttons are displayed in the Welcome Box:
• Applications to be loaded (path and file name in the white field).
• Serial number of the minispec to be connected to (here: ND1428).
• Type of analyzer (here: NMR Analyser).
• The calibration permission is symbolized using a flag.
The wake-up application can also be selected for future program start-up. When the user has
finished with the selections, the OK button is used to start the software.
To change the configuration, press the Setup button. The configuration is protected by a
simple log-in mechanism.
• First log-in: Press the Setup button. Enter and confirm a password. The password will be
saved automatically and you will need it for every subsequent log-in. Handle the
password carefully! Only users who have permission to make changes to calibrations
and software configurations should have knowledge of the password. If password
protection is not desired, simply click OK or <Enter> without entering a password when
the password entry box appears and confirm this in the following box.
• Later log-in: Press the Setup button and enter the password or click twice on OK if
password protection is not used.
6.4.1 Selecting Applications and Connections
If you click Setup in the Welcome Box you will open the configuration level of the welcome
dialogue. This password procedure is described in the section above. Up to 20 applications
can be selected simultaneously for every analyzer type (except for the SFC-Analyzer where
only one application is allowed) to be loaded at the startup. To add applications to the list use
Browse... to access a file selector box or use Delete to remove applications from the list.
To choose another minispec, use the Select button in the Select minispec to connect to field.
6.4.2 Changing Analyser Type and Calibration Permission
Use the Customize button in the configuration level (see Selecting Applications and
Connections) to open a dialog box. In this window the analyzer type and the calibration
permission can be selected by checking the corresponding select box with a mouse click.
Two options, RELAXATION TIME and the NMR analyzer, require a license number to
operate. The number will be requested while connecting to the minispec (after you click the
OK button in the Welcome Box) when one of these options is selected. If ordered with the
system, this license number is issued on the first page of this booklet, labeled as the ExpSpel
license number.
6.5 General Measurement Handling
The most important commands that are used to control measurements are: the Run
command to start a measurement and the Stop command to interrupt a measurement in
progress. Measurements can be started through a number of commands and by activating a
number of software icons or features. For example, the general Run command can be started
through the RUN button from the top icon bar or bottom button panel, from the pull-down
menu minispec, or by simply pressing <Enter>. If the user has been given permission to
perform sample calibrations, then the Calibrate command is available. Other forms of
measurement are available for convenience, including a repetitive run command and a
command to detect the raw NMR signal.
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The following sequence of actions is generally followed in preparation for measurements:
1. Turn on your minispec and your PC (if they were turned off).
´ Wait until the console CPU/Ethernet process boots, as indicated by the lighting of the
left (green) LEDs located on the front edge of the magnet and console.
2. Connect the PC to the minispec you want to use and configure the software, e.g. choose
applications or an analyzer type.
´ Wait until the right LED on the magnet unit is green. This can take up to 3 hours to
ensure optimum temperature stability. If the system was turned off for several days, or
it was moved to another place, insert the calibration sample with 0% solid content and
run the Update Settings routine.
´ If you want to perform SFC (Solid Fat Content) determinations and the analyzer type
is not set to SFC-Analyzer, then make sure the option SFC is checked in the
Instrument Settings submenu of the pull-down menu the minispec before you start
the Update Settings.
3. Depending on the application you use (see your application description), start your
measurement or calibration with the Run or Calibrate command.
The software includes full automatic tuning routines to adjust the measurement settings, for
example pulse length, receiver gain, and magnetic field. You can tune these settings
periodically to ensure the instrument validity over time.
The Daily Check command should be executed once a day to check the most important
instrument settings and hardware functionality.
Every 24 hours, a yellow field on the right of the display will automatically indicate the need
for another Daily Check. Running the Daily Check periodically ensures conformance to
Good Laboratory Practice (GLP).
For minispec.exe software (version 2.8 and higher) as delivered in 2015, an application
version control has been implemented, checking the compatibility of the ExpSpel application,
with other software components, like firmware and FPGA.
Customers using non-compatible versions will get error messages when starting the
applications. The error messages may be ignored, thus running the application with an
incorrect combination of software components. In such a case, the accuracy of the results is
questionable.
6.6 List of Standard Applications
With the mq-Series minispec, nearly all standard applications are executable without any
license number. The most common applications are listed below:
• Solid fat content determination in fat compositions using Solid Fat Content (ratio)
calibration standards with certificates.
• Oil/fat & moisture in:
– Chocolate.
– Cocoa powder.
– Milk powder.
• Oil & Moisture in:
– Seeds.
– Nuts.
– Olives.
• Droplet size analysis in emulsions (protected).
• Xylene soluble content in polypropylene.
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• Additive determinations in polymers.
• Polybutadiene/polystyrene content in SBR.
• Density in polyethylene.
• Crystallinity determinations in polymers.
• Spin-finish determinations (OPU and WPU) on textile fibers.
• Total hydrogen content determinations in hydrocarbons like:
– Jet fuel.
– Other distillates.
• Oil content determinations in wax/paraffin.
• Oil content determination in:
– Sulfur.
– Other chemical powders.
• Relaxation time analysis on contrast agents/liquids.
• Moisture content analysis on powders and tablets.
• Contactless weighting of powders and tablets.
• Fluorine content in toothpaste.
The minispec software for mq-Series systems comprises various minispec Application Pools
(like for instance Application Pool Ratio or others). Each pool contains many applications
which are ready to be executed by the operator. For the list of minispec standard applications
listed above, there are suitable application programs in the Application Pools that allow the
user to run those standard applications. Only the droplet size applications are currently
protected via a license number mechanism (please contact your local Bruker office for
details).
Separate documents describing the various minispec Application Pools exist and can be
found on the minispec Software CD/memory stick in the folder Documentation.
Use of the applications in the various Application Pools is described in the minispec
Application Manual – also located in the Documentation folder on the CD/memory stick.
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7 The minispec Standard Windows
The minispec user interface provides access to all menu functions, parameters, application
programs, NMR signal display, and measurement results. In order to provide ready access to
commonly needed views of the software operations, the screen is divided into different parts.
To facilitate measurement handling and provide easy access to command commands, icon
bars have been integrated into the user interface, and windows are available for the control of
the measured signal (Signal Window) and the results (Result Window, Statistics Box).
Figure7.1: The View of the Signal Window, Result Window and the Spread Sheet.
For the pre-configuration of measurements and a simplified data output a Spread sheet/
database Window is integrated in some applications. Furthermore, the interface layout is
adjusted to the individual needs of the analysis for most of the recent standard application
fields.
The functionality of the windows, i.e. the possibility to move them, depends on the
analyzer type you are working in. Repositioning of bars and windows is only allowed
for the relaxation time and the NMR Analyzer.
7.1 The Signal Window
The Signal Window displays the measured NMR signal or the fit results graphically. In some
analyzer configurations (NMR and Relaxation configurations) the display can be resized.
Scaling of the data and the type of symbols used for the presentation of results can be
adjusted from the View pull-down menu, again depending on the analyzer type. Data
displayed in the Signal Windows can be saved to a file with the extension ‘.sig’ using the
command Save or Save Copy As from the pulldown menu File.
7.2 The Results Window
The Result Window is an output device for minispec applications that uses the ExpSpel
command print_line(RESULTBOX,...) to display a record of the evaluated result.
Results are printed in the Result Window in ASCII text format. The results can be stored
using the Save or Save Copy As… command from the pull-down menu File. Contents of the
Result Window are automatically saved at intervals to a file with extension .mdt). To
determine the parameters of the save procedure, use the command Save Setup in the pulldown menu Save.
Result files can also be read with a common text editor. One can select and copy the data to
the clipboard as ASCII text with the command Copy in the pull-down menu Edit. To toggle
between the normal and the large font result box, mark / unmark Large Font Result Box
from the View menu.
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7.3 The Spreadsheet Window
Spreadsheets have a number of functions in the minispec software:
• They allow a clear data input for the preparation of a measurement series.
• They give a listed view of the measurement results.
• They allow the data to be saved and post processed in common file formats (like MS
ACCESS/EXCEL).
• A spreadsheet will be displayed automatically if it is implemented in the loaded
application.
7.3.1 Execution of Spreadsheets
Normally the tables are executed after RUN is selected, beginning from row one to the end of
the entries. But you can also measure single rows of the table by marking these lines and
then selecting RUN. This may be useful if not all samples are prepared at the beginning of
the analysis or if several measurements should be repeated.
7.3.2 Saving Spreadsheets
Spreadsheet data are saved automatically every time an entry is changed and any time the
ENTER key is pressed. The filename is generated by the minispec software:
<application>\MMMYY\DD\hh\mm\ss.mdb with:
<application>: path of the current application
MMM: month (Jan, Feb, Mar,..., Nov, Dec)
JJ: year (99, 00, 01, ...)
DD: day (01, 02, ..., 31)
hh: hour (00, 01, ...23)
mm: minute (00, 01, ..., 59)
ss: second (00, 01, ..., 59)
Saving in ASCII-format
The files can be saved alternatively in ASCII-format by using the Save or Save Copy As
commands. The file name will be prompted in a standard file selector box, and the file
extension used is *.tab. The first row of the data includes the headlines of the spreadsheet,
the columns are spaced with a <TAB>. The ASCII tables can also be opened with standard
text editors like NOTEPAD/WORDPAD or MS-EXCEL.
7.3.3 Monitoring
During a measurement the spreadsheet is updated by the minispec software every time a
result is added. The tables can be opened on the measurement PC or any other PC
equipped with the minispec.exe software or MS-ACCESS 2013. External monitoring of the
measurement results via a network connection is therefore possible.
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8 The minispec Menu Functions
The minispec software provides many opportunities for data display, data saving, and
measurement handling. This chapter describes all functions that are available when the
software is configured as NMR-Analyzer .
When the minispec is used only for specialized applications (SFC, OIL) many of these
functions are unnecessary. In this case, the number of menu options is reduced to simplify
the interface and make the software easier to use when the configuration is adjusted to
certain analyzer types. Commands whose functionality may be not reasonable in some
contexts appear grayed or may no longer be visible.
The actions of the functions are described below.
8.1 The Bars
The minispec software menu structure and toolbars are designed within the framework of
most standard Windows software to ensure intuitive handling (see the screen layout in the
figure below). In the Menu bar actions can be selected via pull-down menus. Icons are also
used for commonly used actions and remain visible in the Standard toolbar. Depending on
the options selected, the most important commands for the execution and abortion of
measurements may also be accessible through large icons on a Measurement toolbar,
which is usually positioned at the bottom of the screen below the signal window. In the
Result bar the numerical result(s) of the last measurement is displayed. The Info toolbar
contains easily selectable buttons pertaining to the instrument status and parameter display,
as well as a list of loaded applications. Finally, the status of the measurement and
connections are summarized in the Status bar. The functionality of these items is described
in the following sections in detail.
Adjustment of the bars (i.e. the possibility to move them) depends on the configuration of
analyzer type you are working in. Repositioning of bars and windows is only allowed for the
relaxation time and the NMR Analyzer.
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Figure8.1: The Default View
The arrangement of the different bars supports an intuitive measurement handling.
8.2 The File Menu
The list of items in the Menu Bar depends on the active window. If the Signal Window is
active, and an application is loaded, all entries are visible. The functions of the menu can be
activated by a mouse click, or alternatively, using a keyboard shortcut (Alt + underlined
letter).
By activating the File menu all commands necessary for file handling are available (see
figure). Their use is in analogy to conventional Windows software, you can open, close, save
or print the contents of the selected windows (or the whole application).
Figure8.2: The File Pull-Down Menu
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The Open Command
Shortcuts: Standard Tool Bar:
Keys: CTRL+O
Use this command to open an existing document in a new window.
One can select either:
• A complete minispec application (filename extension .app) consisting of maximum four
windows: an editor window with ASCII-text in ExpSpel programming language; the Signal
Window with the measured signals; the Result Box; and in some cases a spreadsheet.
• Measured signals (filename extension .sig) and measured data Result Boxes (file name
extension .mdt) separated from its minispec application.
• Diagnostics files.
The Close Command
Use this command to close all windows in the active application or document.
If the focus is on one of the four views (windows) of a minispec application, the complete
minispec application with all views will be closed.
Shortcut: Standard Tool Bar:
If you want to close all applications use:
Shortcut: Standard Tool Bar:
The Save command (Save As, Save Copy As)
Use the Save command to save the active document to its current name and directory. When
you save a document for the first time, the minispec software displays the Save Copy As
dialog box for input of a name. If you want to change the name and directory of an existing
document before you save it, choose the Save Copy As command.
If you want to make a copy of an existing document, choose the Save Copy As... command.
Shortcuts: Standard Tool Bar:
Keys: CTRL+S
The Save Setup Command
The Result box displays results derived from the NMR data (after evaluation steps defined in
the minispec application). Results are automatically saved as ASCII text at intervals (file
extension: .mdt ).
To set the parameters for the save procedure, select Save Setup from the result box file
menu:
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Figure8.3: The Dialog Box for Data Saving Setup
Select Default Storing to backup every 100 result box lines of measured data to the file
<application>.mdt in the current working directory.
When you attempt to exit the minispec application, the system will prompt whether the data
should be saved, deleted or copied into another file.
Select Don't Prompt Saving to deactivate the prompt when saving, in which case the
unsaved parts of the result box are then saved automatically. After reloading the minispec
application, the results will be erased before the first new results are outputted to the Results
box.
Select Automatic Storing for an automatic documentation of measured results.
The default path for saving is:
<current application directory>\<MMMJJ>\<ddhhmmss>.mdt
MMM: month
JJ: year
dd: day
hh: hour
mm: minute
ss: second
To modify the default path setting, select Browse... and define another folder. Default saving
is every 100 lines and when leaving of the minispec application.
You can modify the default data saving behavior using Measured Data Backup every....
To include an output of the instrument and acquisition parameter settings, select Settings
Print Out in Results Header. These settings are dependent on the minispec applications.
The Print Command
Use this command to print a document. It opens a Print Dialog Box, where you may specify
the range of pages to be printed, the number of copies, the destination printer, and other
printer setup options.
Shortcuts: Standard Tool Bar:
Keys: CTRL+P
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The Print Preview Command
Use this command to display the active document as it would appear when printed. The main
window will be replaced with a print preview window in which one or two pages will be
displayed in their print format. The Print Preview toolbar offers options to view either one or
two pages at a time, movement back and forth through the document, zoom in and out of
pages and to initiate a print job.
The Print Setup Command
Use this command to select a printer and a printer connection. This command presents a
Print Setup dialog box where the printer and its connection are specified.
The 1, 2, 3, 4, 5 Commands
Use the numbers and filenames listed at the bottom of the File menu to open the last five
documents you closed. Select the document you want to open.
The Exit Command
Use this command to end your minispec session. You can also use the Close command. The
minispec software prompts you to save documents when unsaved changes exist.
Shortcuts: Headline:
Keys: ALT+F4
8.3 The Edit Menu
The list of commands in the Edit pull-down menu depends on the active window (see figure
below). In the following description all commands are included to ensure a complete
documentation.
Figure8.4: The Edit Pull-Down Menus for Different Active Windows
In the figure above, the left side shows the menu when the Signal Window is active, and the
right side when the Results Window is active.
The Copy Command (Copy as Data, Copy as Bitmap)
Use this command to copy selected data into the clipboard. This command is not available if
no data is selected. In the case of signals, data are copied as x-, y- (, z-) data in ASCII
format, to allow an easy transfer to Excel. Use Copy as Bitmap from the Edit menu to copy
signals as bitmap to the clipboard.
Shortcut Keys: CTRL+B (Copy as Bitmap)
Shortcut Keys: CTRL+C (Copy as Data)
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The Select All Command
Selects the entire content of the Result Window. In the Signal Window this command is only
valid in connection with calibrations.
Shortcut Keys: CTRL+A
The Unselect All Command
Unselects the entire content of the Result Window. In the Signal Window this command is
only valid in connection with calibrations.
Shortcut Keys: CTRL+U
The Erase All Command
Erases the entire content of the Result Window, without erasing the data from the
corresponding automatically saved measured data file.
Shortcut Keys: Del
The Find Command
Use this command for searching and highlighting words or text fragments.
Shortcut Keys: CTRL+F
8.4 The minispec Menu
All commands concerning instrument settings are included in this menu item. The commands
for the magnet heater calibration and the receiver tuning are only available for BRUKER
service personnel and therefore are grayed with a normal software startup. The list of
commands depends on the status of the instrument (see figure). If there is no application
loaded, the list is enlarged by the commands Connect and Disconnect.
Figure8.5: The minispec Pull-Down Menu
The Connect/Disconnect Command
Once the system requirements for TCP/IP have been fulfilled, a software link between the
minispec software running on a PC, and the minispec must be initialized. To establish the PC
to minispec connection, select minispec Connect. Alternatively you can select Connect in
the Welcome Box.
Enter the minispec serial number when prompted by the Connection Dialog Box.
The minispec serial number must have the form NFxxxx for mq-systems.
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The minispec serial number, which is the host name of the minispec, is used to identify the
BRUKER minispec, controlled by the minispec software that is running on a PC in a TCP/IP
network.
Use the command Disconnect from the menu to disconnect from the current minispec (e.g.
prior to reconnecting to another minispec).
The Instrument Settings Command
Minispec instrument settings (see the figure below) are instrument dependent values such as
the pulse lengths and the magnetic field at NMR resonance. Instrument settings differ from
minispec to minispec, and must be tuned the first time a minispec is connected. You can use
this command to change the settings of the instrument with manual input.
Figure8.6: The minispec Settings Table
You can change the listed settings by manual input or with the Update Settings command.
Grayed entries are disabled.
Shortcut: Standard Tool Bar:
The settings that can be changed are shown in the figure above. If the minispec Settings
are disabled on a connected minispec, customize your minispec software (through the
Welcome Box) to access the calibration parameters.
The Advanced button in the settings table allows access to a list of instrument setting table
names. The user may select the appropriate settings table to be used by the instrument,
define custom names for the settings tables with the help of the Customize button (e.g.
settings table name could be set to the probe name), and save the current entries under a
new name.
Entries in the settings table about SFC are only relevant in the case of the SFC-Analyzer. If
the SFC-item in the upper middle part of the settings table is marked, then the Update
Settings and the Daily Check routines will include steps to determine the SFC-specific
values. The factors (K, F, and O) and the sampling windows for a solid fat content analysis
are definable via the SFC-Settings button.
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The Update Settings Command
An update may be necessary after the system has been installed, relocated or the probe
assembly has been changed. An instrument settings update is also recommended if the
Daily Check fails and no other cause of the failure can be localized. One should first check
the sample, the cable connections and the sample position inside the probe before running
Update Settings.
For instrument optimization it is recommended running the Update Settings routine. The
Update Settings routine can also be used to update selected settings.
If the Update Settings menu stays disabled on a connected minispec, customize your
minispec software (through the Welcome Box) to provide access to the calibration
parameters.
The Daily Check Command
A blue mark (validated) symbol on the right side of the Info Toolbar indicates a well checked
minispec instrument.
This option tests the instrument settings but does not change them. A quick check is
recommended once a day (every 24 hours). A checkmark (Checked) in the Info toolbar
signifies a well-checked minispec instrument. An un-calibrated minispec instrument is
indicated by a yellow mark (Check!).
To run the Daily Check, use the corresponding toolbar button or select Daily Check from the
menu. If one of the checks fails it indicates that there is a mismatch between the expected
and the given performance. Use the Update Settings command to perform an update, but
make sure before that everything is well connected/adjusted and no other problem applies.
Double check that the sample used is the correct one.
Shortcut: Info Toolbar:
The Balance Settings Command
One can connect a scale by serial interface to the PC's communication port in order to
electronically transfer sample weight information (weights are necessary for some absolute
applications). To enter the port configuration dialog, close all minispec applications, then
select Balance from the Setup menu. Access is limited to users who have permission to
enter the minispec main menu or calibration. Select the balance type, then the port to
connect the balance to. Select the port parameters according to the settings on the scale. To
set the standard values, click Default before leaving the Settings Table. To leave the Settings
Table unchanged, click Cancel. To re-load old settings from file after modifications, click Re-
Read. To leave the Settings Table with the new values, click OK.
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The I/O Port Settings Command
One can connect serial interface devices, such as balances, thermostats or sample
changers, to the PC's communication port. To get the port configuration dialog, close all
minispec applications, then select I/O Port from the Setup menu. Note: To get the minispec
main menu, the R&D level or calibration permission must be given. Select the port
parameters according to the settings on the connected device.
The Licenses Command
Some special applications, like the digital pulse attenuation and the pulse shaping need to be
licensed. Use this menu to open the license number input box, which prompts the user to
input the license number. After a successful license procedure, the menu entry is checked
and grayed.
Have ready the minispec instrument's system number (see Status Bar) and contact BRUKER
for information or license numbers.
8.5 The Measurement Menu
All commands concerning the execution of measurements are concentrated in this menu item
(see the figure below). Since these commands are used frequently, quick select buttons are
available in the Measurement Tool Bar and key short cuts exist to enhance accessibility.
Figure8.7: The Measurement Pull-Down Menu
The Run, Stop and Continue Commands
The Run command starts a measurement. If the Sample Detector is set ON (see: Instrument
Settings Command) the measurement will be executed automatically with the insertion of the
sample.
Shortcuts: Standard Tool Bar:
Measurement Tool Bar:
Keys: ALT+M or ENTER
To interrupt a minispec measurement, use the Stop command.
Shortcuts: Standard Tool Bar:
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Measurement Tool Bar:
The command Continue is used to leave an intermediate process in order to continue
running the minispec application (e.g. during a waiting time, a data acquisition or a fit
display).
Shortcuts: Standard Tool Bar:
Measurement Tool Bar:
Keys: ESC
The Calibrate Command
A typical minispec application detects NMR signals of the sample and then calculates the
result from the NMR signal. In some cases, the result can be directly calculated from the
measured signal (e.g. a relaxation time). In other cases the minispec applications may use a
reference method and calibration line to determine a sample property (e.g. oil, water or fat
content) from the NMR signal. As a consequence, the NMR signal must first be calibrated
with respect to sample properties. Select Calibrate Sample from the Measurement menu.
Shortcuts: Standard Tool Bar:
Measurement Tool Bar:
Keys: ALT+C
Running a minispec sample calibration leads the user through several steps. In most cases
some application specific values (see: The Application Parameter Table Command) need to
be defined.
To calibrate a minispec application, proceed as follows:
1. Prepare at least 3 samples of known content for measurement.
2. Perform test measurements with each calibration sample to adjust the acquisition
parameters from the Acquisition Parameter Table in the Parameter menu. Adjust the
receiver gain to the sample with the strongest signal.
3. Save the parameters and leave the parameter table.
4. Run the sample calibration and follow the prompts.
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A flag in the Info Toolbar indicates a calibrated minispec application.
An uncalibrated minispec application is labeled with the following flag:
The Detect raw Signal Command
In some cases, for example to adjust the acquisition parameters, it might be helpful to detect
the signal without data processing. This command was implemented to execute only the
pulse sequence and acquisition without data processing or result output.
Shortcut: Keys: ALT+S
The Run Repetitive Command
With this command a measurement can be repeated several times at a regular interval.
Shortcut Keys: ALT+R
Select 'Repetitive Measurement Settings' from the Parameter menu to determine the
waiting time in seconds before a repetitive minispec measurement, the delay between two
successive repetitions, and the maximum number of repetitive measurements.
8.6 The Parameter Menu
All parameters for acquisitions, applications and repetitive measurements can be defined with
the assistance of the commands in this menu:
Figure8.8: The Parameter Pull-Down Menu
8.6.1 The Acquisition Parameter Table Command
Acquisition parameters are application dependent values (for example receiver gain, recycle
delay and number of scans to accumulate) that help define data acquisition. These values
can be modified when a minispec is connected to the PC and a minispec application has
been loaded. To modify acquisition parameters open the Acquisition Parameter Table.
Shortcuts: Standard Tool Bar:
Keys: ALT+P
To save the modifications to file, click <Save> before you leave the Parameter Table.
Note: Calibrated minispec applications will loose their calibration, if parameters are changed.
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If the Save button stays disabled on a connected minispec, customize your minispec
software to provide access to the calibrated application.
Experiment parameters that can be edited through the Acquisition Parameters menu:
Figure8.9: The Acquisition Parameter Table
Scans (1 – 32000)
Scans is used to set the number of times the NMR experiment should be repeated for signal
averaging before the result is evaluated. The required number of scans depends on the
signal strength, the desired signal-to-noise (which will limit the precision of the
measurement), and the desired speed of analysis (time between scans is set by the Recycle
Delay). Signal to noise improves with the square root of the number of scans. The remaining
number of scans during an experiment is shown in the lower right corner of the display.
RD (seconds)
RD, or Recycle Delay, is used to set the time delay in seconds between repeated scans. The
recycle delay is usually set just a little longer than the relaxation time of the sample. If the
delay is deliberately made shorter than the sample relaxation time, one or more dummy shots
can be made prior to the experiments in order to ensure that the first scan has the same
history as all subsequent scans.
Gain (mq-Series NF systems: 40 – 119dB)
Gain sets the signal amplification in the receiver. It is a common procedure to set the gain
such that the highest part of the signal reaches about 80% of the signal input range. It is
known that the noise start to increase significantly when exceeding 95…100dB. As the NF
minispec features a high signal resolution like 14/15 bit, it is also possible to work with lower
input signal levels, thus avoiding gain values that are too high.
Note that the gain should not be changed for calibrated applications. If the range of input
signals is too large for one gain setting, it may be better to have several calibrations with
different gain settings.
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Dummy Shots (0 - 32000)
Pulses before the measurement can be made prior to the experiments, in order to ensure that
the first scan has the same magnetization history as all subsequent scans.
Static Gradient (x, y, z, -100…+100)
If a Pulse Gradient Unit is attached, this parameter (typically x) is used to control a static
gradient generated with a constant current to the gradient coils. The static gradient reduces
the line width by spoiling the magnetic field homogeneity. The strength of the static gradient
reaches approximately 1% of the pulsed gradient.
Detection mode (magnitude/real/imaginary/complex)
Sets the mode of signal detection. Magnitude detection calculates the root of the sum of the
squares of the real and imaginary parts of the signal, which are recorded by the quadrature
receiver. The magnitude mode is independent of the detection angle, and not as sensitive to
off-resonance effects of the magnetic field, but does not include any signed information (i.e. is
always positive). Data recorded in complex mode has a real and imaginary component and
can be Fourier transformed for viewing in the frequency domain (see The Process Menu
[}58]).
For applications requiring phase information (e.g. T1 relaxation), the in- and out-of-phase
components can be measured separately using the real and imaginary modes respectively. If
the detection angle and the magnetic field have been adjusted optimally, the real component
will be at maximum and the imaginary component will be zero.
Digital Bandwidth
NF systems come with a real digital filter which means that the dwell time is related to the
setting of the digital filter. Changing the digital filter from the standard value in the application
software may lead to non-sense NMR signals. Make sure the relation between digital filter
and dwell is understood and set accordingly.
In the latest version of the minispec software, the digital filter is defined within the ExpSpel
application and cannot be altered from the Acquisition Parameter Table.
The selection of the digital bandwidth is described in the new ExpSpel programming manual
for NF systems. Of course the user can work with all the ExpSpel application examples
provided within the various application pools.
8.6.2 The Application Configuration Table Command
The most common minispec applications can be configured for the special requirements of
the current measurement (e.g. whether the liquid or solid fat content has to be determined).
The command opens a table where the application options can easily be edited.
Shortcuts: Standard Tool Bar:
Keys: ALT+P
The Application Configuration Table is optional, not all minispec applications need a sample
calibration or configuration, thus the configuration table may not be available for these
applications.
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8.6.3 The Acquisition Pre-Delay Time command
In some cases a defined delay is desired between the time a sample is inserted and the time
of measurement start (e.g. if time is needed to allow the temperature of the sample to
equilibrate in the magnet). The Acquisition Pre-Delay Time command allows such a delay
to be set. The waiting time is added to the recycle delay of the first scan of the data
acquisition. Once a measurement is triggered, you can override the acquisition pre-delay and
continue with data acquisition by selecting the Continue command.
8.6.4 The Repetitive Measurement Settings Command
Repetitive measurements require several control parameters. When this command is
selected, a table appears where the following parameters can be specified: the waiting time
in seconds before a repetitive minispec measurement begins, the delay between two
successive repetitions, and the maximum number of repetitive measurements.
8.7 The View Menu
Each user can configure the screen for the special requirements of a measurement. With the
help of the pull-down menu View one can adjust the arrangement of the different windows,
the display of toolbars, the font size for the result output and much more. The list of available
commands depends on the active window and the active application:
Figure8.10: The View Pull-Down Menu
The View Default and the Toolbars Commands
The minispec software shows four tool bars: the Standard Tool Bar, the Result Bar, the
Measurement Tool Bar and the Info Tool Bar (see the figure above). When the minispec
software is configured as the Relaxation Time or NMR Analyzer type, all toolbars are docking
toolbars. This means that the toolbars can be moved to any location on the entire screen by
pressing and holding the left mouse key. The location can be outside of the minispec
software main window, within the main window docked (e.g. on the left, right, top or bottom),
or switched off entirely. To switch toolbars on and off, mark/unmark the corresponding toolbar
in the minispec application menu View.
To get an impression of the toolbars and to restore the default screen select View Default.
Shortcut Keys: ALT+V
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The Info Views Command
This command is subdivided into four parts:
1. minispec Settings: If you choose this item you will get a table of all minispec application
relevant instrument settings and parameters.
Shortcut: Info Toolbar:
The function is disabled (grayed) if no minispec is connected.
2. minispec System Status: The user can get a real-time indication of the status of the
minispec instrument, particularly:
– Magnet Unit temperature and status.
– Sample orifice status (sample inserted or not).
– Sample insertion detection (grayed if sample detection is set OFF.
– Transmitter power status.
– Heater power status.
– Electronic Control Unit temperature status (grayed if Control Unit temperature
detection is set OFF.
– External Gradient Unit status.
– Possibility of attenuated and shaped pulses.
The entries are marked with a checkmark ( ) when the corresponding item status is OK.
Shortcut: Info Tool Bar:
3. Results Mean. This function displays the Statistics Box (see figure), a window which
allows general monitoring of measurement results. The Statistics Box contains:
– Mean value.
– Standard deviation.
– Current data value.
– Total number of data.
– Maximum value.
– Minimum value.
– Difference between minimum and maximum value.
– Graphic representation (Statistics “Meter”).
The window can be minimized with the double arrow in the upper right part of the box (see
figure). Only the graphic view will be displayed in the minimized form. The green area in
the graph displays the range of tolerance for the measurement, the vertical lines through
the meter indicate the actual values, and the continuous broad vertical line represents the
mean value.
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Figure8.11: The Statistics Box
4. Fit Info: You can display a window containing all information of a current fit. An active Fit
Window is marked with a check mark.
The Display Modes Command
Different display modes are available for the measurement signal. Possible modes are:
Figure8.12: Display Modes
You can activate the desired display mode with a mouse click.
The Display Scaling and the Display Cursor Commands
There are various possibilities for the data and cursor display. With these commands the
scaling of the Signal Window and the options for the cursor displays are adjusted. For easy
handling the commands can be executed using short cuts. The following display operations
are available:
Resets the display to the default view.
Adds a grid to the signal display.
Toggles between separate or overlapping displays of real and imaginary signals.
Toggles between Full Scale (the limits are the highest and lowest values to be displayed)
and normal (100%) signal scale.
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Zoom Scale on / off. To zoom, mark the signal with the rectangle cursor. Using the left
mouse button you can toggle between the left/upper and the right/lower limit. The zoom
range is defined using the right mouse button. To reset, use the right mouse button or click
the Reset button.
Fix Scale on / off. Fixes the display scale (e.g. after zooming) and the display type if used
before a measurement.
Data Cursor on / off. Allows the data cursor to be moved with the mouse or cursor keys.
When activated, data point information is available in the Status Bar.
Distance Cursor on / off. Allow the mouse or cursor keys to be used to position the distance
cursors. Use the left mouse button to toggle between the left and right distance cursor. Data
points distance information can be found in the Status Bar.
Marker Cursor on / off. Use the mouse or the cursor keys to position the data cursor. You
can observe data point information (and the distance from the fitted value) in the Status Bar.
The field is only active if a calibrated data file for the application exists.
Note: Zooming, data, distance and marker cursors can only be used exclusively.
The Welcome Box Command
On the BRUKER minispec program start, the software wakes up with the Welcome Box (see
also section Configuration of the Software, the Welcome Box). The Welcome Box offers the
possibility of adapting some software settings to the user’s purposes (e.g. selecting a
minispec application or connecting a minispec). To switch off the Welcome Box, uncheck
Display this Window on Startup in the Welcome Box. On restarting BRUKER minispec
software, the last minispec connection and minispec applications will be reloaded
automatically. One can deselect loading the minispec application after program start via
switching off the option Load Application on Startup in the Welcome Box. You can also
switch on / off the Welcome Box by marking / unmarking the Welcome Box command in the
View menu.
The Large Font Result Box Command
The information in the Result Window can be displayed using two different font sizes.
Marking this entry you will choose the larger font.
The Diagnostics View Command
With this command a window is opened up which displays various information for diagnostic
purposes. These options are helpful for checking the instrument status, connections, and
commands. Different diagnostics are available, depending on the active window. The transfer
of the diagnostic information from the minispec to the PC, and the display in the Diagnostics
View needs time and system resources, thus this command can be used to regulate
performance as required.
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The minispec Menu Functions
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Note: To ensure a failure-free operation use these options only for diagnostic purposes and
not in the background for standard measurements. Unmark Diagnostics View and all
diagnostic possibilities when they are not any longer required!
The Pulse Ram Diagnostics Command
This command is only available if the Editor Window is active. If you mark this command,
information is printed about the pulse pattern of the NMR pulse sequence into the
Diagnostics View.
The Connection, Commands and Suppress Status Diagnostics Commands
If Connection Diagnostics is marked, information will be printed about the connection
between the minispec software and the minispec connected. With Commands Diagnostics,
information will be printed about the data exchange into the Diagnostics View. Some status
information about the hardware is requested every second. These requests take also place if
the status has not changed during the last interval. For a clear and easy diagnostic it may be
useful to suppress the printing using the command Suppress Status Diagnostics.
Some of the functions described might only be available in certain minispec.exe software
versions.
8.8 The Process Menu
The Process item is only displayed when a Signal Window is active. Different commands for
data processing are summarized in this pull-down menu:
Figure8.13: The Process Pull-Down Menu
Within the context not all commands may be reasonable, in which case they will be grayed.
The following series of built-in signal processing features are available:
The Fit Command
This command is only available in connection with calibrations. You can fit your calibration
data and display the fit results (see Info Views, point 4).
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The minispec Menu Functions
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59
The FFT, Magnitude, Power and Absolute Commands
A Fast Fourier Transform of measurement data will be performed using the FFT command. If
the NMR signal is observed in complex mode (real and imaginary part of the signal) the
Magnitude ([Re2+Im2]1/2) or the power spectrum can be calculated. From the real,
imaginary or complex data, the Absolute values can be calculated.
The Signal Flip, and the Signal Swap Command
The signal can be mirrored with respect to an offset frequency of 0 using the Signal Flip
command. The Signal Swap command exchanges the real and imaginary part.
8.9 The Window Menu
Figure8.14: The Window Pull-Down Menu
Default, Cascade, Tile Horizontal and Tile Vertical Commands
You can arrange the windows (see figure) as Cascade in an overlapping fashion, or you may
arrange multiple open windows Horizontally or Vertically side by side. To reset the window
alignment, use the Default command.
Shortcut Keys: ALT+W.
The Arrange Icons Command
Use this command to arrange the icons for minimized windows at the bottom of the main
window. If there is an open document window at the bottom of the main window, some or all
of the icons may not be visible because they are hidden behind this document window.
The Marker Command
This command sets the Marker Cursor on / off. Use the mouse or the cursor keys to position
the data cursor. Data point information (and the distance from the fitted value) is then
available in the Status Bar. The window is only active if a calibrated data file for the
application exists.
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The minispec Menu Functions
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Shortcut Standard Tool Bar:
The 1, 2, 3,... Commands
Use the numbers or the mouse to select one of the listed windows at the bottom of the menu
to set it into the foreground.
8.10 The Help Menu
For a user friendly handling the minispec software includes a detailed help function. You have
the choice of different entries to receive help on your questions (see figure). Green entries in
the help text are cross references to related topics. One may switch to them by clicking on
the green text.
Figure8.15: The Help Pull-Down Menu
The Using Help Command
A help box will be activated with information on how to use the different help options.
The Help Topics Command
This command will open up a dialog box where the topics you want information about are
entered.
The About the minispec Command
Use this command to display the copyright notice and version number of your copy of the
minispec software.
Shortcuts: Standard Button Bar:
Additional Help Functions
While moving the cursor through the buttons, a short on-line help will be displayed describing
the function of the button. At the same time a more detailed description is displayed in the left
part of the Status Bar.
If you want an expatiated comment about menu functions, windows, commands or buttons
use the Context Help command.
Shortcuts: Standard Button Bar:
Keys: SHIFT+F1
When you select the Standard Toolbar's context help button, the mouse pointer will change to
an arrow and a question mark. Click somewhere in the minispec software window, for
example on another Toolbar button or a menu entry, to display the corresponding help topic.
You can also receive help about the current active window. If you want to open a window with
detailed information use the shortcut keys F1.
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The Experiment Editor ExpSpel for the mq-Series
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61
9 The Experiment Editor ExpSpel
for the mq-Series
The macro programming language ExpSpel was developed to allow the user to design their
own experiments and to modify the BRUKER standard applications. In the mq-series a large
variety of new commands have been implemented to enlarge the number of experiments.
Important tools defined in ExpSpel are:
• Pulse sequences
– loops, conditional jumps, flags, ...
– acquisition parameters
– time and wait functions
– RF-pulse attenuation
– Pulsed field gradients and static gradients
• Data acquisition
– acquisition time
– acquisition points
– acquisition modus
• Data processing
– signal display
– measured data information
– fit routines
– FFT
• Data In/Output
– implementation of Spread sheets
– definition of file formats
• Calibration procedures
• Instrument settings
• Control of peripherals
In order to use ExpSpel, a license is required (only available in R & D levels). The license
number must be entered when prompted when the PC is connected to the minispec for the
first time. Alternatively, you can select Licenses from the minispec pull down menu and enter
the license number when prompted.
To open the editor window use the button. The menu bar changes, an additional item –
ExpSpel‑ is displayed. This pull-down menu allows an application to be loaded, a spell check
to be made (short cut: ) and applications to be translated. A translation can be performed
by loading the file into ExpSpel and clicking the Translate command in the ExpSpel pull-
down menu. To minimize the editor window click the button. The experiment editor works
much like conventional editors. Use the Edit pull-down menu to access copy, paste and other
actions. Usually the ExpSpel files are saved with the extension: .app.
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For a detailed description of ExpSpel refer to the extended Help file where all accessible
commands and actions are described in detail. Help Topics can be accessed from the Help
pull down menu. When the item About: ExpSpel is selected, an overview of ExpSpel is
displayed in the index.
When inspecting an ExpSpel sequence, it is also possible to highlight a command of interest
and press F1 to immediately receive instructions about this command.
An updated ExpSpel manual has been written for the NF series, especially pointing out the
programming changes as compared to the series ND minispec systems. This new manual is
part of the mq-series documentation.
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Basic NMR Principles
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63
10 Basic NMR Principles
NMR (Nuclear Magnetic Resonance) is made possible by the properties possessed by some
atoms that cause their nuclei (part of every atom) to have a magnetic moment. The atom
most commonly investigated by NMR is Hydrogen (1H), the nucleus of which is composed of
a single proton. Hydrogen is present in many natural and synthetic substances like oil, water,
polymers, pharmaceutics and foodstuffs. In a strong external magnetic field (called polarizing
field) produced by the permanent magnets in the Magnet Unit, the magnetic moments can be
oriented, and the vector sum of all moments results in a macroscopic magnetization. The
amount of magnetization depends on the strength of the external magnetic field and the
temperature.
Pulses of radio frequency (RF) at a suitable frequency can influence the magnetization in the
sample. In NMR this resonance frequency, called Larmor frequency, depends on the field
strength of the external magnetic field and the nucleus investigated. For example, at a field
strength of 0.47 Tesla, protons (1H) have a resonance frequency of 20 MHz. The orientation
of the magnetic field generated by the RF pulse is perpendicular to the static external
polarizing field.
When, for example, a sample containing NMR-active nuclei is exposed to a strong external
magnetic field by inserting a sample into the sample orifice of the magnet, the process of
build up of macroscopic magnetization will start immediately, but it takes some time until the
equilibrium is reached. The time constant of this built-up process is called longitudinal
relaxation time T1 (see figure).
Figure10.1: Increase of the NMR Signal Due to Longitudinal Relaxation
With skillful sequences of RF-pulses (generated by the Electronic Control Unit and
transmitted to the sample via the probe) the macroscopic magnetization can be influenced.
One possibility is the generation of so-called transverse magnetization. This is not an
equilibrium state, and therefore different relaxation processes arise. The transverse
magnetization is still the vector sum of discrete atomic magnetic moments. Each one of these
moments underlies a specific time evolution, and a loss of phase coherence results. The time
scale of this magnetization loss is described by the transverse relaxation time T2 (see figure)
in the easiest case.
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Basic NMR Principles
64 E1400011_1_001
Figure10.2: Decay of the NMR Signal Due to Transverse Relaxation
Secondly, the system naturally tends to relax back to the thermal equilibrium. This process is
equivalent to the polarization process described above and takes place with the time constant
T1. Various other processes are known from NMR-theory, depending on the pulse sequences
used to manipulate the magnetization. These processes are described by different relaxation
times, some examples are T1ρ, T1D, and T2e.
Substances and materials can be characterized by relaxation measurements because the
relaxation times are highly sensitive to molecular properties. For example, they can be
sensors for various ranges of molecular motions. The large range of motions that can be
characterized by NMR is a main point which makes NMR to such a valuable tool in analysis.
For example, because of their different relaxation behavior solid and liquid parts in one
sample can be distinguished clearly and their amount determined as in solid fat content
(SFC) measurements. As a consequence such materials as foodstuff, cosmetics, chemical
products and much more can be investigated. For a more detailed description refer to the
application descriptions available from Bruker.
Furthermore, the intensity of the NMR signal is a function of the number of atomic moments
contributing to the macroscopic magnetization. Therefore, the signal is a measure of the
number of nuclei in a sample. Minispec methods make use of this relationship to determine
the amount of, for example, oil or moisture in a wide range of samples.
In summary, NMR makes use of the nuclei in substances as sensors of their surroundings,
yielding important information about the matter. Since both excitation and detection are
performed via electromagnetic waves in the radio frequency region, this analytical method is
contactless, non-destructive, and rapid.
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Maintenance
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65
11 Maintenance
11.1 Cleaning
Before Cleaning
Disconnect the mains cable from the unit before cleaning.
Cleaning the Main Unit
Use a clean damp cloth to wipe off any residue from the outside of the unit. Wipe off excess
moisture immediately with a dry cloth.
For non water soluble marks, wipe using a cloth with a few drops of isopropyl alcohol.
Before Reconnecting the Power Supply
Wait until the unit is completely dry before reconnecting the power supply!
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Maintenance
66 E1400011_1_001
Page 67
Dismantling and Disposal
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67
12 Dismantling and Disposal
Following the end of its operational life, the unit can be returned to Bruker for safe disposal. If
this is impractical, the unit should be disposed of safely as prescribed by local environmental
regulations.
Installation, initial commissioning, retrofitting, repairs, adjustments or dismantling of the
device must only be carried out by Bruker Service or personnel authorized by Bruker.
Damage due to servicing that is not authorized by Bruker is not covered by your warranty.
12.1 Dismantling
Before starting dismantling:
1. Shut down the device and secure to prevent restarting.
2. Physically disconnect the power supply from the device; discharge stored residual energy.
3. Remove consumables, auxiliary materials and other processing materials and dispose of
in accordance with the environmental regulations.
4. Clean assemblies and parts properly and dismantle in compliance with applicable local
occupational safety and environmental protection regulations.
12.2 Disposal
If no return or disposal agreement has been made, send the dismantled components for
recycling as prescribed by local environmental regulations.
• Scrap metals.
• Send plastic elements for recycling.
• Dispose of packaging material in accordance with the relevant applicable legal
requirements and local regulations.
• Sort and dispose of other components in accordance with their material composition.
NOTICE
Danger to the environment from incorrect handling of pollutants!
Incorrect handling of pollutants, particularly incorrect waste disposal, may cause serious
damage to the environment.
u Always observe local environmental regulations regarding handling and disposal of
pollutants.
u Take the appropriate actions immediately if pollutants escape accidentally into the
environment. If in doubt, inform the responsible municipal authorities about the damage
and ask about the appropriate actions to be taken.
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Dismantling and Disposal
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Page 69
Contact
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69
13 Contact
Manufacturer:
Bruker BioSpin GmbH
Am Silberstreifen
D-76287 Rheinstetten
Germany
Helpdesk Europe: (+49) 721-5161-6155
Helpdesk USA: (+1) 978-667-9580
E-Mail:
minispec.SLS@bruker.com
http://www.bruker.com
WEEE DE43181702
Bruker BioSpin Hotlines
Contact our Bruker BioSpin service centers.
Bruker BioSpin provides dedicated hotlines and service centers, so that our specialists can
respond as quickly as possible to all your service requests, applications questions, software
or technical needs.
Please select the service center or hotline you wish to contact from our list available at:
http://www.bruker.com/service/information-communication/helpdesk/magnetic-
resonance.html
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Contact
70 E1400011_1_001
Page 71
List of Figures
E1400011_1_001 71
List of Figures
Figure 4.1: The minispec MQ-Series Rating Plate.......................................................................... 20
Figure 5.1: The minispec mq Magnet Unit (left) and Electronic Control Unit (right)........................ 21
Figure 5.2: The minispec Magnet Unit (left) and Electronic Control Unit (right).............................. 25
Figure 5.3: Handles on the Side of the Magnet Unit ....................................................................... 26
Figure 5.4: Electronic Control and Magnet Units ............................................................................ 27
Figure 5.5: Back Planes of the Electronic Control Unit (top) and Magnet Unit (bottom) ................. 27
Figure 5.6: Sketch of the Back View of the Connections from the Gradient Unit............................ 28
Figure 5.7: Back View of the Gradient Unit ..................................................................................... 28
Figure 5.8: Ring of the Quick-Release Fastener (left) and the Raising of the Probe Assembly
(right) ............................................................................................................................ 31
Figure 6.1: The Welcome Box ........................................................................................................ 35
Figure 7.1: The View of the Signal Window, Result Window and the Spread Sheet. ..................... 39
Figure 8.1: The Default View .......................................................................................................... 42
Figure 8.2: The File Pull-Down Menu ............................................................................................. 42
Figure 8.3: The Dialog Box for Data Saving Setup ......................................................................... 44
Figure 8.4: The Edit Pull-Down Menus for Different Active Windows ............................................. 45
Figure 8.5: The minispec Pull-Down Menu ..................................................................................... 46
Figure 8.6: The minispec Settings Table ........................................................................................ 47
Figure 8.7: The Measurement Pull-Down Menu ............................................................................. 49
Figure 8.8: The Parameter Pull-Down Menu .................................................................................. 51
Figure 8.9: The Acquisition Parameter Table ................................................................................. 52
Figure 8.10: The View Pull-Down Menu ........................................................................................... 54
Figure 8.11: The Statistics Box ......................................................................................................... 56
Figure 8.12: Display Modes .............................................................................................................. 56
Figure 8.13: The Process Pull-Down Menu ...................................................................................... 58
Figure 8.14: The Window Pull-Down Menu ...................................................................................... 59
Figure 8.15: The Help Pull-Down Menu............................................................................................ 60
Figure 10.1: Increase of the NMR Signal Due to Longitudinal Relaxation........................................ 63
Figure 10.2: Decay of the NMR Signal Due to Transverse Relaxation............................................. 64
Page 72
List of Figures
72 E1400011_1_001
Page 73
Index
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73
Index
Numerics
1, 2, 3, 4, 5 Commands ....................................45
A
Acquisition parameters.....................................51
Add applications ...............................................36
Analyzer type....................................................35
Application Pools..............................................38
Application programs........................................39
B
Balance Settings command..............................48
Basic NMR Principles.......................................63
Blue crossed-wire UTP-cable...........................34
C
Calibrate command ....................................36, 50
Cleaning the Main Unit .....................................65
Close Command...............................................43
Connect/Disconnect Command........................46
Connectors .......................................................27
Copy Command ...............................................45
CTRL+P............................................................44
Customize button .............................................36
D
Daily Check command .....................................48
Default Storing..................................................44
Detect raw Signal command ............................51
Detection mode (magnitude/real/imaginary/
complex)......................................................53
Detection of hydrogen ......................................21
Dismantling.......................................................67
Disposal............................................................67
Dummy Shots...................................................53
E
Edit pull-down menu.........................................45
Electrical Connection Values............................18
Electronic Control Unit......................................24
Erase All command ..........................................46
Exit Command..................................................45
ExpSpel ............................................................61
ExpSpel license number...................................36
F
File menu..........................................................42
Find command..................................................46
H
Help menu ........................................................34
I
I/O Port Settings command ..............................49
Inspect the delivery ..........................................14
Installation CD ..................................................33
Instrument Settings command..........................47
IP addresses ....................................................34
L
License number................................................61
Licenses command ..........................................49
List of commands .............................................46
M
Magnet Unit ......................................................24
Measurement results........................................39
Menu functions .................................................39
minispec Plus software.....................................33
minispec Software CD/Memory Stick ...............19
N
NMR analyzer...................................................36
NMR signal display...........................................39
O
Open Command ...............................................43
Operating Environment ....................................19
P
Packaging.........................................................14
parameters .................................................39, 51
Print Command ................................................44
Print Preview Command...................................45
Print Setup Command ......................................45
Q
QC/QA measurements .....................................22
R
Rating plate ......................................................20
RD (seconds) ...................................................52
Recycling..........................................................67
RELAXATION TIME .........................................36
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Index
74 E1400011_1_001
Remove applications ........................................36
Result Box ........................................................43
Result Window .................................................39
RUN..................................................................40
Run command ..................................................36
Run Repetitive command .................................51
Run, Stop and Continue commands ................49
S
Save command ................................................43
Save Setup Command .....................................43
Saving in ASCII-format.....................................40
Scans (1 – 32000) ............................................52
Select All command..........................................46
Setup program..................................................33
Signal Window..................................................39
Siting Considerations .......................................22
Spreadsheets ...................................................40
Standard applications.......................................37
Stop command .................................................36
T
TCP/IP ‘Properties’...........................................34
Technical Data: ................................................17
Toolbars ...........................................................41
Transport and handling ....................................13
U
Unpacking the System .....................................26
Unselect All command......................................46
Update Settings command ...............................48
User interface ...................................................39
W
Wake-up configuration .....................................35
Welcome Box ...................................................35
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E1400011_1_001 75
Page 76
Bruker Corporation
info@bruker.com
www.bruker.com
Order No: E1400011
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