Bruker BioSpin BLAH2000-I E C Instruction and safety manual

Preclinical MRI
Bruker BioSpin
think forward
Version
BLAH2000I E C
Amplifier 300MHz
Operating & Service Manual
001

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. Unauthorised 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 BLAH2000-I E C 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
© March 24, 2010: Bruker BioSpin
Wissembourg, France
Frédéric Melis
Dominique Wurtz
P/N: Z31916
DWG-Nr: Z4D11184

Operating & Service Manual Version 001 BRUKER BIOSPIN 3 (47)
Contents
Contents ............................................................................ 3
1 General Information ........................................................... 5
1.1 Introduction ........................................................................................ 5
2 Safety .................................................................................. 7
2.1 Labels ................................................................................................ 7
Identifying Plate ............................................................................. 7
Manufacturer’s Name Plate ............................................................ 8
2.2 Safety Labels And Symbols ................................................................ 9
Warning Signs ............................................................................... 9
Risk of Danger .......................................................................... 9
Operating Instruction ................................................................. 9
3 Installation .........................................................................11
3.1 Initial Inspection ............................................................................... 11
Mechanical Check ........................................................................ 11
Claim for Damage ........................................................................ 11
Reshipment and Repackaging Requirements ............................... 11
Environment Requirements .......................................................... 12
3.2 Installation Requirements ................................................................. 12
Bench Operation .......................................................................... 12
3.3 Power Requirements ........................................................................ 12
3.4 System Check .................................................................................. 12
3.5 Initial Turn on Procedure .................................................................. 13
4 Operation .......................................................................... 15
4.1 Front Panel Description .................................................................... 15
Indicators ..................................................................................... 15
Coaxial Connectors ...................................................................... 16
Ethernet 10/100 Interface Connector ............................................ 16
CAN Bus Interface Connectors ..................................................... 17
Device Front View ........................................................................ 17
4.2 Rear Panel Description ..................................................................... 18
Device Rear View ........................................................................ 18
5 Technical Description ...................................................... 21
5.1 System Overview .............................................................................. 21
5.2 Theory of Operation .......................................................................... 24
RF Path ....................................................................................... 24
RF Driver ................................................................................ 24
RF 4 ways Splitter ................................................................... 24

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Contents
RF Power Amplifier ................................................................. 24
RF 4 ways Combiner ............................................................... 24
RF Coupler ............................................................................. 25
BLA Control Board ....................................................................... 25
CAN BUS Interface ...................................................................... 26
CAN 1 In (RX U3) / Out (TX U2) .............................................. 26
CAN 2 In (RX U5) / Out (TX U4) .............................................. 26
Enable .................................................................................... 26
Unblank .................................................................................. 26
Status Led Board ......................................................................... 26
BIS Board .................................................................................... 26
6 Servicing the BLA .............................................................27
6.1 Accessing the BLA Amplifier ............................................................. 27
6.2 Sub Toolbar Information ................................................................... 28
Device Information (default) ......................................................... 28
Amplifier Status ........................................................................... 29
6.3 Sub Toolbar Advanced Operations ................................................... 30
Device Information (advanced) .................................................... 30
Amplifier Limitations .................................................................... 31
Change Limits ............................................................................. 32
Routing Information and Setting ................................................... 33
6.4 Sub Toolbar Maintenance ................................................................. 34
Device Information (maintenance) ............................................... 34
Self-Test & Software Reset .......................................................... 35
Firmware Update ......................................................................... 37
BIS Content ................................................................................. 38
7 Specifications ...................................................................39
7.1 Common Characteristics .................................................................. 39
7.2 General Specifications ..................................................................... 40
Channel 2000W Output ............................................................... 40
8 Service Information and Maintenance ..............................41
8.1 Preventive Maintenance of the RF Module on BLA-Type Amplifiers .. 41
Operation .................................................................................... 41
Figures ............................................................................. 43
Tables ............................................................................... 45

Operating & Service Manual Version 001 BRUKER BIOSPIN 5 (47)
1
General
Information 1
Introduction 1.1
The BLAH2000-I E C Amplifier 300MHz is a narrowband linear pulse power
amplifier specifically designed for Magnetic Resonance Imaging (MRI)
applications up to 7 Tesla systems.
It is commercialized under the BRUKER BIOSPIN part number W1345551.
It is operated in AB linear class and provides 2000W and more peak RF power at
300MHz frequency.
The amplifier is equipped with N-Channel MOS Broadband RF Power FETs
transistors of the latest generation. The unit can provide full power for any
combination of pulse width and duty cycle up to 10ms and 5% for 2000W RF
output Power.
Its built-in protection circuitry will allow lower power pulses for longer pulse widths
and duty-cycles, maintaining up to 100W average power on the 2000W RF
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 also equiped with a CAN interface for the Siemens MAGNETOM
electronic platform and can be used in combination with the Siemens syngo
software.
Internal monitiring provides detailed status information wich is transfered over the
CAN bus to the syngo MR error logger.
The supply is self protected for overcurrent and overvoltage.
The amplifier is housed in a 19", 4U, 520mm deep rack cabinet and is powered by
an internal switched power supply assembly that provides the +32VDC for the
power amplifiers, in addition to all low level voltages for the system.

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General Information

Operating & Service Manual Version 001 BRUKER BIOSPIN 7 (47)
2
Safety 2
The BLAH2000-I E C 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.
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 BLAH2000-I E C 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 default variant is 00.
•(C) ECL
This field indicates the revision number that identifies the product
configuration. The initial revision is 0.00.
•(D) Serial Number
This field indicates the serial number of the product.
•(E) Type
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 BLAH2000-I E C can be identified by a manufacturer’s name plate at the
back panel of the unit that contains the following information :
Figure 2.2. Manufacturer’s Name Plate
•(A) Voltage
This field indicates the input mains voltage of the product.
•(B) Frequency
This field indicates the input mains frequency of the product.
•(C) Phases
This field indicates the number of phases of the mains.
•(D) Power
This field indicates the absorbed power of the product.
•(E) Current
This field indicates the absorbed current of the product.
•(F) Wires
This field indicates number of wires with the ground in the mains cord.
•(G) Part Number
This field indicates the assembly number that identifies the part number of the
product.
Hz
Made in France
VAC
Wires +
A B C Phase
FD KVA Gnd
EAmps
P/N : G

Operating & Service Manual Version 001 BRUKER BIOSPIN 9 (47)
Safety Labels And Symbols
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.

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Safety

Operating & Service Manual Version 001 BRUKER BIOSPIN 11 (47)
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 BLAH2000-I E C Amplifier 300MHz has a build-in switched power supply.
The mains line connector on the rear panel is a CEI 10A.
One Phase Line requirements :
AC input voltage : 208-230VAC
Input current max : 5.5A
Frequency : 50/60Hz
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.
•AC line is connected.
•CAN interface is connected.
•Power forward and reflected are connected.
•The BLAH2000-I E C Amplifier 300MHz has a nominal input level of 0dBm.
Ensure that the system drivers are operating at these levels.
•Output RF loads are connected.

Operating & Service Manual Version 001 BRUKER BIOSPIN 13 (47)
Initial Turn on Procedure
Initial Turn on Procedure 3.5
The following list describes how to turn on the BLAH2000-I E C Amplifier 300MHz
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 12.
1. Connect the amplifier 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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Operating & Service Manual Version 001 BRUKER BIOSPIN 15 (47)
4
Operation 4
Front Panel Description 4.1
The BLAH2000-I E C Amplifier 300MHz front panel is provided with 11 indicators
for status monitoring, 5 RF connectors, 1 interface connector, 6 optocoupled
connectors and 1 line switch.
Indicators 4.1.1
Normal operation is indicated when following LED's are ON.
Table 4.1. Indicators Assignment
+32V Indicates that the +32V supply is 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.
2000 Indicates when the RF Power is present on the 2000W output.

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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
RF IN RF input, SMA type connector (female).
Allows to the BLAH2000-I E C to deliver full power at nominal +0dBm drive.
2000W RF output, N type connector (female).
Power output 2000W @ 300MHz.
BLNK Blanking input, BNC type connector (female), for test only.
TTL logic, 0V = blanking ON, +5V = blanking OFF.
When BLANKING signal is at TTL level low (0V), no gating is applied to the
amplifier stages, and no RF Power is possible.
When BLANKING signal is at TTL level high (+5V), the amplifier stages are
gated and RF Power is possible.
POWER FORWARD Image of Forward signal output, SMA type connector (female).
Nominal coupling -67dB.
POWER
REFLECTED
Image of Reflected signal output, SMA type connector (female).
Nominal coupling -67dB.
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 001 BRUKER BIOSPIN 17 (47)
Front Panel Description
CAN Bus Interface Connectors 4.1.4
Table 4.4. CAN Bus Connectors Assignment
Device Front View 4.1.5
Figure 4.1. BLAH2000-I E C Amplifier 300MHz Front Panel Design
U2 Optocoupled output TX1
U3 Optocoupled input RX1
U4 Optocoupled output TX2
U5 Optocoupled input RX2
ENABLE Optocoupled enable input
UNBLK Optocoupled input blanking
2000
+32V
+15V
-15V
+3.3V
RF POW. FLT
OVERHEAT
OVERDRIVE
D. C.
P. W.
MISMATCH
ETH. 10/100
BLAH2000-I E C 300 MHz
1
O
TxRx
18
LINE
2000 W
RF IN
U2
FORWARD
POWER POWER
REFLECTED
U3 U4 U5 ENABLE UNBLANK
CAN BUS
BLNK
TEST

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Operation
BLAH2000-I E C Amplifier 300MHz Front Panel View
Rear Panel Description 4.2
The BLAH2000-I E C Amplifier 300MHz rear panel is free of elements in excep-
tion of the 3 poles (2P+E) line filter socket.
Device Rear View 4.2.1
Figure 4.2. BLAH2000-I E C Amplifier 300MHz Rear Panel Design

Operating & Service Manual Version 001 BRUKER BIOSPIN 19 (47)
Rear Panel Description
Figure 4.3. BLAH2000-I E C Amplifier 300MHz Rear Panel View

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Operation