Bruker BLAH1000 E Instruction and safety manual

NMR Spectroscopy
Bruker BioSpin
think forward
Version
BLAH1000 E
Amplifier 700900MHz INR
Operating & Service Manual
002

The information in this manual may be altered without notice.
BRUKER BIOSPIN accepts no responsibility for actions taken as a result of use of
this manual. BRUKER BIOSPIN accepts no liability for any mistakes contained in
the manual, leading to coincidental damage, whether during installation or
operation of the instrument. Unauthorized reproduction of manual contents,
without written permission from the publishers, or translation into an other
language, either the entire manual or a part of it, is forbidden.
This manual describes the units as they are at the date of printing. On request, the
manufacturer shall supply circuit diagrams, lists of components, descriptions,
calibrating instructions and any other information for use by qualified personnel of
the user, in charge of repairing the parts of the unit which have been stated by the
manufacturer to be "repairable". Such supply shall in no event constitute
permission to modify or repair the units or approval of the same.
All rights reserved for the units, circuits, processes and appellations mentioned
herein.
This unit is not designed for any type of use which is not specifically described in
this manual. Such use may be hazardous.
For further technical assistance on the BLAH1000 E unit, please
do not hesitate to contact your nearest BRUKER dealer or
contact us directly at:
BRUKER BioSpin
34 rue de l’Industrie
F-67166 Wissembourg Cedex
France
Phone: + 33 388 066 000
Fax: + 33 388 736 820
Email: [e-mail]
Internet: www.bruker.com
This manual was written by
This manual was edited and desktop published by
© May 3, 2010: Bruker BioSpin
Wissembourg, France
Bernard Geissert
Dominique Wurtz
P/N: Z31792
DWG-Nr: Z4D10066A

Operating & Service Manual Version 002 BRUKER BIOSPIN 3 (53)
Contents
Contents ............................................................................ 3
1 General Information ........................................................... 5
1.1 Introduction ........................................................................................ 5
2 Safety .................................................................................. 7
2.1 Identification Labels ............................................................................ 7
Identifying Plate ............................................................................. 7
Manufacturer’s Name Plate ............................................................ 8
2.2 Safety Labels and Symbols ................................................................. 8
Warning Signs ............................................................................... 8
Risk of Danger .......................................................................... 8
Operating Instruction ................................................................. 8
3 Installation .......................................................................... 9
3.1 Initial Inspection ................................................................................. 9
Mechanical Check .......................................................................... 9
Claim for Damage .......................................................................... 9
Reshipment and Repackaging Requirements ................................. 9
Environment Requirements .......................................................... 10
3.2 Installation Requirements ................................................................. 10
Bench Operation .......................................................................... 10
3.3 Power Requirements ........................................................................ 10
3.4 System Check .................................................................................. 10
3.5 Initial Turn on Procedure .................................................................. 11
4 Operation .......................................................................... 13
4.1 Front Panel Description .................................................................... 13
Indicators ..................................................................................... 13
Coaxial Connectors ...................................................................... 14
Ethernet 10/100 Interface Connector ............................................ 14
Device Front View ........................................................................ 15
4.2 Rear Panel Description ..................................................................... 16
Power Supply Connector .............................................................. 16
Device Rear View ........................................................................ 17
4.3 External Power Supply ..................................................................... 18
Front Panel & Indicators Description ............................................ 18
Device Front View ........................................................................ 18
Rear Panel Description ................................................................ 19
Device Rear View ........................................................................ 19

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Contents
5 Technical Description .......................................................21
5.1 System Overview ............................................................................. 21
5.2 Theory of Operation ......................................................................... 25
RF Path ....................................................................................... 25
Embedded Input Router .......................................................... 25
RF Driver ................................................................................ 25
RF Relays H1000/H100 Selection ........................................... 26
RF Splitter .............................................................................. 26
RF Power Amplifier ................................................................. 26
RF Combiner .......................................................................... 26
RF Coupler ............................................................................. 27
Isolators .................................................................................. 27
BLA Control Board ....................................................................... 27
BLA Extension Board ................................................................... 29
Status Led Board ......................................................................... 29
BIS Board .................................................................................... 29
Supply Status Board .................................................................... 30
6 Servicing the BLA .............................................................31
6.1 Accessing the BLA Amplifier ............................................................. 31
6.2 Sub Toolbar Information ................................................................... 32
Device Information (default) ......................................................... 32
Amplifier Status ........................................................................... 33
6.3 Sub Toolbar Advanced Operations ................................................... 34
Device Information (advanced) .................................................... 34
Amplifier Limitations .................................................................... 35
Change Limits ............................................................................. 36
Routing Information and Setting ................................................... 37
6.4 Sub Toolbar Maintenance ................................................................. 38
Device Information (maintenance) ............................................... 38
Self-Test & Software Reset .......................................................... 39
Firmware Update ......................................................................... 41
BIS Content ................................................................................. 42
7 Specifications ...................................................................43
7.1 Common Characteristics .................................................................. 43
7.2 General Specifications ..................................................................... 44
Channel High Resolution 100W Output ........................................ 44
Channel Solid 1000W Output ....................................................... 45
8 Service Information and Maintenance ..............................47
8.1 Preventive Maintenance of the RF Module on BLA-Type Amplifiers .. 47
Operation .................................................................................... 47
Figures ............................................................................. 49
Tables ............................................................................... 51

Operating & Service Manual Version 002 BRUKER BIOSPIN 5 (53)
1
General
Information 1
Introduction 1.1
The BLAH1000 E Amplifier 700-900MHz INR is a broadband linear pulse power
amplifier specifically designed for Nuclear Magnetic Resonance (NMR) and
Magnetic Resonance Imaging (MRI) applications for 16,4 to 21,1 Teslas Systems.
It is commercialized under the BRUKER BIOSPIN part number W1345091.
It is operated in AB linear class and provides 1000W and more peak RF power
over the frequency range 650-900MHz on the 1000W channel for the Solid
applications and 100W and more peak RF power on the 100W channel for the
High Resolution applications.
The amplifier is equipped with N-Channel RF LDMOSFETs transistors of the
latest generation. The unit can provide full power for any combination of pulse
width and duty cycle up to 100ms and 25% in High Resolution mode and 5% in
Solid mode.
Its built-in protection circuitry will allow lower power pulses for longer pulse widths
and duty-cycles, maintaining a 50W average power for the Solid application on
MAIN OUT 1000W/100W output and a 25W average power for the High
Resolution application on AUX OUT 1000W/100W output.
The electronic protection circuitry has been designed to protect against:
•Excessive power output level (overdrive)
•Excessive pulse repetition rate (over duty-cycle protection)
•Excessive pulse duration (over pulse-width)
•More than 50% reflected RF power (mismatch when VSWR ≥6)
•Thermal protection (overheat)
The amplifier is powered by an external switched power supply assembly housed
in a 19", 2U, 480mm deep rack cabinet and provides the +32VDC for the power
amplifiers, in addition to all low level voltages for the system.
The supply is self protected for overcurrent and overvoltage.
The amplifier is housed in a 19", 3U, 520mm deep rack cabinet.

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General Information

Operating & Service Manual Version 002 BRUKER BIOSPIN 7 (53)
2
Safety 2
The BLAH1000 E Amplifier 700-900MHz is in accordance with the standard
61010-1 and with the UL 61010-1 / CSA C22.2 No.61010-1-04 Safety
Requirements for Electrical Equipments.
Identification Labels 2.1
Labels are provided to alert operating and service personnel to conditions that
may cause personal injury or damage to the equipment from misuse or abuse.
Please read the labels and understand their meaning.
Identifying Plate 2.1.1
The BLAH1000 E Amplifier 700-900MHz can be identified by an identifying plate
at the front panel of the unit that contains the following information :
Figure 2.1. Identifying Plate
•(A) Part Number
This field indicates the part number of the product.
•(B) Variant
This field indicates the variant number that identifies the production category of
the product. The variant is not used.
•(C) Revision Level
This field indicates the revision number that identifies the product
configuration. The initial revision level is 00.00.
•(D) Serial Number
This field indicates the serial number of the product.
•(E) Designation
This field contains the designation of the product.
•(F) Information
This field contains additional information about the product.
A///BC D
E
F

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Safety
Manufacturer’s Name Plate 2.1.2
The BLAH1000 E Amplifier 700-900MHz can be identified by a manufacturer’s
name plate at the back panel of the unit that contains the country of origin of
manufacture.
Figure 2.2. Manufacturer’s Name Plate
Safety Labels and Symbols 2.2
Warning Signs 2.2.1
Risk of Danger
Operating Instruction
Operating personal should not remove RF output cable without turn off the power
supply because the RF output can cause serious burns before the "Mismatch"
protection is active.
Please disconnect the mains supply before opening to prevent potential hazard
such as :
•Electrical shock from power supply
•Contact burns from the RF module and heatsink
•Finger scratch due to the fan assembly on the RF module.
DANGER! Risk of electrical shocks
Throughout this manual, this symbol indicates the possibility of
severe personal injury, loss of life or equipment damage if the
instructions are not followed.
On the equipment, the symbol also implies a danger and alerts the
user.
Made in France

Operating & Service Manual Version 002 BRUKER BIOSPIN 9 (53)
3
Installation 3
The installation of the device must be done only by an authorized and qualified
technician, in total accordance with the running standards.
BRUKER BIOSPIN assumes no liability for the customer’s failure to comply with
these requirements and is therefore not responsible or liable for any injury or
damage that occurs as a consequence of non-approved installation.
Initial Inspection 3.1
Mechanical Check 3.1.1
If damage of the shipping cardboard is evident, request the carrier's agent to be
present when the instrument is unpacked. Check the equipment for damage and
inspect the cabinet and panel surfaces for dents and scratches.
Claim for Damage 3.1.2
If the unit is mechanically damaged or fails to meet specifications upon receipt,
notify BRUKER or our representative immediately. Retain the shipping cardboard
and packing material for the carriers inspection as well as for subsequent use in
returning the unit if necessary.
Reshipment and Repackaging Requirements 3.1.3
Whenever possible, the original cardboard and packing material should be used
for reshipment. If the original packing material is not available, wrap the
instrument in heavy paper or plastic. Use a strong shipping container. If cardboard
is used, it should be at least 200 lbs. test material.
Use shock absorbing material around all sides of the instrument to provide a firm
cushion and to prevent movement from inside the container wall on each side.
Protect the front panel by means of cardboard spacers inserted between the front
panel and the shipping cardboard. Make sure that the instrument cannot move in
the container during shipping. Seal the cardboard box with a good grade of
shipping tape and mark the container :
"FRAGILE ELECTRONIC INSTRUMENT"

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Installation
Environment Requirements 3.1.4
This amplifier is built for inside use only on a maximum elevation of 2000m above
sea level (6600 feet).
No specific cooling or ventilation is required.
Be sure that the amplifier has enough area around it so that the free airs flow into
and out of the amplifier is not obstructed.
It should, however, be in an environment which conforms to the 5°C - 45°C (41°F
- 113°F) thermal specifications, a 80% maximum relative humidity of air and a
contamination level of two (means a normal non-conductive contamination,
temporary conductivity due to condensation is possible).
Installation Requirements 3.2
No special precautions are necessary. Mount the equipment in an area which is
relatively free of vibration, and has sufficient room for cable connections.
The amplifier has a class II installation category.
Bench Operation 3.2.1
The unit can be placed onto a secure flat surface.
Power Requirements 3.3
The BLAH1000 E Amplifier 700-900MHz is designed to be powered by an
additional external switched power supply (P/N:W1304007).
The connection to this power supply is realized via a 500mm cable fitted with a
15 pins DIN 41612-ERNI female connector and coming out from the rear panel of
the amplifier.
It provides all the voltages necessary to the BLAH1000 E Amplifier 700-900MHz
to work. See "External Power Supply" on page 18.
System Check 3.4
Before applying power for the first time the following items should be checked:
•The AC input voltage 208-230 VAC ± 10% range must be compatible with the
power supply.
•An external blanking (gating) pulse must be supplied to the amplifier in order
for the unit to function. Ensure that this pulse has a proper level and logic
polarity.
•The BLAH1000 E Amplifier 700-900MHz has a nominal input level of +4dBm.
Ensure that the system drivers are operating at these levels.
•Output RF loads are connected.

Operating & Service Manual Version 002 BRUKER BIOSPIN 11 (53)
Initial Turn on Procedure
Initial Turn on Procedure 3.5
The following list describes how to turn on the BLAH1000 E Amplifier 700-
900MHz and what should be seen as this occurs.
Before starting this procedure, make sure that you have properly followed the
instructions in section "System Check" on page 10.
1. Connect together the amplifier and the external power supply, connect it to the
AC line and turn the line switch to ON.
2. Observe the indicators on the front panel of the amplifier:
- The +32V ON LED's will illuminate,
- The +15V, -15V and +3,3V ON LED's will illuminate.
3. System is now fully operational.

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Installation

Operating & Service Manual Version 002 BRUKER BIOSPIN 13 (53)
4
Operation 4
Front Panel Description 4.1
The BLAH1000 E Amplifier 700-900MHz front panel is provided with 13 indicators
for status monitoring, 7 RF connectors, 1 interface connector.
Indicators 4.1.1
Normal operation is indicated when following LED's are ON.
Table 4.1. Indicators Assignment
+32V Indicates that all +32V supplies are applied.
+15V Indicates that the +15V supply is applied.
-15V Indicates that the -15V supply is applied.
+3,3V Indicates that the +3,3V supply is applied.
Overdrive Indicates when the peak power limit has been reached.
Duty Cycle (D.C.) Indicates when the duty cycle limit has been reached.
Pulse Width (P.W.) Indicates when the pulse width limit has been reached.
Mismatch Indicates when the max. reflected power limit has been reached.
RF POW. FLT Indicates when one of the above limits has been reached.
Overheat Indicates that the thermistor located on the RF module heatsink has sensed
excessive heatsink temperature. The amplifier is blanked until an accepable
temperature is reached. The function is self-resetting and no maintenance is
needed.
Indicates also that a fan on the assembly stops turning. The amplifier is
blanked until fans are changed.
RF PULSE Indicates when RF Power is present on one of the RF Output connectors.
MAIN OUT ON indicates that the MAIN OUT 1000W/100W is active.
OFF indicates that the AUX OUT 1000W/100W is active.
1000W ON ON indicates that the Solid channel is active.
OFF indicates that the High Resolution channel is active.

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Operation
Coaxial Connectors 4.1.2
Table 4.2. Coaxial Connectors Assignment
Ethernet 10/100 Interface Connector 4.1.3
The RJ45 connector for the Ethernet 10/100 Mbps link is mounted directly on the
BLA Control Board.
Table 4.3. RJ45 Pin Assignment
IN1, IN2, IN3 RF inputs of the embedded router, SMA type connector (female).
Default entry is IN1 and allows to the BLAH1000 E to deliver full power at
nominal +4dBm drive.
MAIN OUT
1000W/100W
RF output of 1000W if MAIN OUT LED is on, N type connector (female).
This is based on the SEL H1000/H100 selection.
AUX OUT
1000W/100W
RF output of 100W if MAIN OUT LED is off, N type connector (female).
This is based on the SEL H1000/H100 selection.
BLNK Blanking input, BNC type connector (female).
TTL logic, 5V = blanking ON, 0V = blanking OFF.
When BLANKING signal is at TTL level high (+5V), no gating is applied to the
amplifier stages, and no RF Power is possible.
When BLANKING signal is at TTL level low (0V), the amplifier stages are gated
and RF Power is possible.
SEL H1000/H100 Select input, BNC type connector (female).
When the SEL H1000/H100 signal is at TTL level low (0V), the 1000W channel
for Solid application is selected.
When the SEL H1000/H100 signal is at TTL level high (+5V), the 100W
channel for High Resolution application is selected.
Pin 1 Transmit + (Tx+)
Pin 2 Transmit - (Tx-)
Pin 3 Receive + (Rx+)
Pin 4 N/A
Pin 5 N/A
Pin 6 Receive - (Rx-)
Pin 7 N/A
Pin 8 N/A

Operating & Service Manual Version 002 BRUKER BIOSPIN 15 (53)
Front Panel Description
Device Front View 4.1.4
Figure 4.1. BLAH1000 E Amplifier 700-900MHz Front Panel Design
Figure 4.2. BLAH1000 E Amplifier 700-900MHz Front Panel View
BLAH1000 E 700-900MHz
RF PULSE
+32V
+15V
-15V
+3.3V
RF POW. FLT
OVERHEAT
OVERDRIVE
D. C.
P. W.
MISMATCH
1000W ON
MAIN OUT
IN 1
AUX OUT
ETH. 10/100
H1000/H100
1000W/100W
IN 2
IN 3
SEL
MAIN OUT
1000W/100W
BLNK
Tx Rx
18

16 (53) BRUKER BIOSPIN Operating & Service Manual Version 002
Operation
Rear Panel Description 4.2
The rear panel of the BLAH1000 E Amplifier 700-900MHz has a 500mm cable
fitted with a 15 pin DIN 41612-ERNI female connector, coming out of the rear
panel of the amplifier.
Power Supply Connector 4.2.1
Table 4.4. DIN 41612-ERNI Pin Assignment
DGND = Digital Ground for ±15V and +3,3V
PGND = Power Ground for 5 x +32V
Figure 4.3. DIN 41612-ERNI Connector Design
Pin z4 +3,3V Pin d6 not connected
Pin z8 +15V Pin d10 DGND
Pin z12 -15V Pin d14 PGND
Pin z16 +32V Pin d18 PGND
Pin z20 +32V Pin d22 PGND
Pin z24 +32V Pin d26 PGND
Pin z28 +32V Pin d30 PGND
Pin z32 +32V
E F G H
D C B A
32 30 28 26 24 22 20 18 16 14 12 10 6842
d
z

Operating & Service Manual Version 002 BRUKER BIOSPIN 17 (53)
Rear Panel Description
Device Rear View 4.2.2
Figure 4.4. BLAH1000 E Amplifier 700-900MHz Rear Panel Design
Figure 4.5. BLAH1000 E Amplifier 700-900MHz Rear Panel View

18 (53) BRUKER BIOSPIN Operating & Service Manual Version 002
Operation
External Power Supply 4.3
The external power supply has the Bruker Part Number P/N:W1304007.
This part number has been established for identification of use by internal jumper
settings.
It provides a first output voltage channel of +32Vdc, 50A maximum with a current
peak of 175A maximum for 100ms pulse width and 5% duty cycle and also a
second output voltage channel of +32Vdc, 18A maximum with a current peak of
45A maximum for 100ms pulse width and 10% duty cycle.
This unit provides also auxiliaries supplies of +15Vdc; 2A, -15Vdc; 0.5A and
+3.3Vdc; 4A.
Front Panel & Indicators Description 4.3.1
The external Power Supply front panel is provided with 5 indicators for status
monitoring.
Normal operation is indicated when following LED's are ON.
Table 4.5. Power Supply Indicators Assignment
Device Front View 4.3.2
Figure 4.6. Power Supply Front Panel Design
+28/30/32V A ON 175A Indicates that the +32V first voltage output channel supply is active.
Internal setting.
+28/30/32V B ON 45A Indicates that the +32V second voltage output channel supply is active.
Internal setting.
+12/+15V ON Indicates that the +15V supply is active.
Internal setting.
-15V ON Indicates that the -15V supply is active.
+3,3V/+5V ON Indicates that the +3,3V supply is active.
Internal setting.
+28/30/32V A ON 175A
+12V/+15V ON
-15V
+3.3V/+5V
+28/30/32V B ON 45A
B-PSU 28-30-32V
1
O
ON
ON
(200mA/100ms)

Operating & Service Manual Version 002 BRUKER BIOSPIN 19 (53)
External Power Supply
Figure 4.7. Power Supply Front Panel View
Rear Panel Description 4.3.3
The rear panel of the external power supply is provided with a 15 pin DIN 41612-
ERNI male connector.
Device Rear View 4.3.4
Figure 4.8. Power Supply Rear Panel Design
Figure 4.9. Power Supply Rear Panel View

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Operation