A-MSystems 4000 User manual

MultiRecord Extracellular Amplifier

INSTRUCTION MANUAL
FOR
MUTLIRECORD EXTRACELLULAR
AMPLIFIER
MODEL 4000
A-M Systems
PO Box 850
Carlsborg, WA 98324
U.S.A.
360-683-8300 800-426-1306
FAX: 360-683-3525
http://www.a-msystems.com

WARNING
THIS EQUIPMENT IS NOT
INTENDED FOR USE WITH
HUMAN SUBJECTS IN ANY
WAY.
Document
The information contained in this
manual was as accurate as possible
at the time of publishing, but is
subject to change without notice
and should not be construed as a
commitment by A-M Systems.
Changes may have been made to
the hardware or firmware it
describes since publication. A-M
Systems reserves the right to
change specifications as required.
For the latest information please
check our website (http://www.a-
msystems.com) or contact A-M
Systems, directly.
Manual Product Number 980004
Manual Document Number
1027910 Rev 01
All rights reserved. No part of this
document may be reproduced by
any means without the prior written
permission of A-M Systems
Safety
This instrument is provided with
terminal for protective grounding.
Before applying power, verify that
the correct safety precautions are
taken (see the following warnings).
In addition, note the external
markings on the instrument that are
described under Safety
Symbols. Do not operate the
instrument with its cover removed.
Replace fuse only with specified
type.
Supply Voltage
This equipment can be operated
between 100V – 240V, max 0.9A,
and 50-60Hz.
WARNING
Do not attach a line voltage that
does not match the line voltage
specified on the rear panel.
Before turning on the instrument,
you must connect the protective
earth terminal of the instrument to
the protective earth conductor of
the (mains) power cord. The mains
plug must only be inserted in a
socket outlet with a protective earth
contact.
Service should be performed by
trained personnel only. To avoid
dangerous electric shock, do not
perform any service unless
qualified to do so.
Do not operate the instrument in
the presence of flammable gases or
fumes. Operation of any electrical
instrument in such an environment
constitutes a safety hazard.
Safety Symbols
!
The product is marked with this
symbol when it is necessary for you
to refer to the instruction manual in
order to protect against damage to
the product.
WARNING
The Warning symbol calls attention
to a procedure or practice, which, if
not correctly performed could
result in injury. Do not proceed
beyond a Warning symbol until the
indicated conditions are fully
understood and met.
CAUTION
The Caution symbol calls attention
to a procedure or practice, which, if
not correctly performed could
result in damage to the product. Do
not proceed beyond a caution until
the indicated conditions are fully
understood and met.

4
TABLE OF CONTENTS
1. GENERAL DESCRIPTION..........5
2. FRONT AND REAR PANELS......6
3. INSTRUMENT OPERATION.......9
4. SPECIFICATIONS........................10
5. WARRANTY..................................11
LIST OF TABLES AND FIGURES
Figure 1.
Power switch
............................................. 6
Figure 2.
Probe Input
............................................... 6
Figure 3.
Sciworks Passthrough Connectors
....................... 6
Figure 4.
Sciworks Data Cable
..................................... 7
Figure 5.
USB Connector
.......................................... 7
Figure 6.
Box ID
................................................... 8
Figure 7.
Control for Additional Units
............................. 8

5
P
O
W
E
R
A-M Systems, Inc. MODEL 4000
PROBE INPUT
DIGITAL I/O
TRIG 21
DAC OUT
MultiRecord
1. General Description
The Model 4000 contains 32 low noise, high gain full-featured extracellular amplifiers, or channels, designed
for amplifying microvolt-level input signals. ll parameters are controlled by the Datawave Sciworks Data
cquisition and nalysis System running on a personal computer running a supplied Windows
®
operating
system via the rear panel USB connector.
Each channel has significant signal conditioning capabilities, including low and high pass filtering, a line-
frequency notch filter, and gain. Each channel records differentially between its input lead and a designated
reference: either ground or an external reference electrode.
Up to eight Model 4000s can be controlled by a single Sciworks System. In addition, pass through
connectors to the trigger and D C I/O ports of the Sciworks System are available at the front panel of the
Model 4000. See your Datawave Instruction manual for detailed information re the functionality of these
connectors.
The Model 4000 16-Channel Extracellular Amplifier is not intended for clinical or operating room
measurements in human subjects

6
2. Front and Rear Panels
This chapter describes the front and rear panel controls and connectors on the Model 4000.
When you receive your Model 4000, confirm that everything in the packing list is included. Make
sure there are no obvious signs of internal damage, such as rattling. Pick up the amplifier and tilt in
gently from side to side, and listen for anything that might be loose. If you hear any suspicious
noises, contact -M Systems immediately.
Front Panel
Power
The Model 4000 has an illuminated power supply switch that will light
when line power is passing through it. If it does not light then there is no
line power to the amplifier.
Probe Input
This DB37 connector is the connection point for the TBSI headstage. It is
directly compatible with either a M-Series 30-Channel Headstage or a T-
Series 32-Channel Headstage output cable.
Datawave Sciworks Passthrough Connectors
These connectors provide easy access to a variety of functions generated
by Datawave Sciworks. For additional information on their functionality,
please refer to the Datawave Sciworks Instruction Manual.
Figure 1. Power switch
Figure 2. Probe Input
PROBE INPUT
Figure 3. Sciworks
Passthrough Connectors
DIGITAL I/O
TRIG 21
DAC OUT

7
Rear Panel
AC POWE R
FUSES 0.5A, 120V
0.25A, 250V
!
Disconnect line
before changing fuses
WARNING
Not approved for human subjects
WARNING
USB
Control fo r
Additio nal Un its
Box ID
A- M S ystems to Data wa e In terfa ce
WARNING
AC Power Input
This instrument has a terminal for protective grounding. Before applying power, verify that the
correct safety precautions are taken. In addition, note the external markings on the instrument that
indicate line voltages. Do not operate the instrument with its covers removed. Replace fuse only
with specified type. Check that the correct voltage for your country is indicated on the back of the
unit. Before turning on the instrument, you must connect the protective earth terminal of the
instrument to the protective earth conductor of the (mains) power cord. The mains plug must only
be inserted in a socket outlet with a protective earth contact. It accepts C voltage from 100 to
240V, 50 to 60Hz, and a maximum draw of 0.9 .
Datawave Sciworks Control Cable
This 68 pin high density connector is the input port for the data
transfer between the Model 4000 and the Datawave Sciworks Data
cquisition and nalysis System.
USB Connector
This connector enables a personal computer running the Datawave
Sciworks Data cquisition and nalysis System to control the
Model. It must only be connected to “BoxID = 1”
Figure 4. Sciworks Data Cable
A-M Systems to Datawa e Interfa ce
Figure 5. USB Connector
USB

8
Box ID
This 8 position slide switch assigns the unit identifier to each
Model 4000 in your system. If you have only a single Model 4000,
this value should be set to “1”. If you have more then one Model
4000, then each unit should have a unique number.
The BOX ID:will determine the channel assignments recorded by the Model 4000 as seen by the
Datawave Sciworks System.
.
BOX ID
TBSI
M-SERIES
HE DST GE
CH NNELS
TBSI
T-SERIES
HE DST GE
CH NNELS
1 1-30 1-32
2 31-60 33-64
3 61-90 65-96
4 91-120 97-128
5 121-150 129-160
6 151-180 161-192
7 181-210 193-224
8 N 125-256
Control for Additional Units
These DB25 connectors enable multiple units to be controlled by a single
Datawave Sciworks System. These connectors are equipotent, i.e., either can
serve as an input/output to any other Model 4000 unit.
Figure 6. Box ID
Box ID
Figure 7. Control for
Additional Units
Control for
Additional Units

9
3. Instrument Operation
fter unpacking your instrument and verifying that it is configured for the proper C Power line
values, turn the instrument on using the front panel power switch.
High Pass
Each channel has a High Pass filter that can be set to any of the following values: 0.3, 1.0, 3.0, 10.0,
30.0, 100.0, 300.0, and 500.0 Hz.
Low Pass
Each channel has a Low Pass filter that can be set to any of the following values: 0.1, 0.3, 0.5, 1.0,
3.0, 5.0, 10.0, and 20.0 kHz.
Gain
The gain of each channel can be set to any of the following values: 1, 2, 5, 10, 20, 50, 100, 200. This
does not include the gain of the headstage being used in conjunction with the Model 4000.
Notch
filter can be introduced or removed from each channel’s signal path in order to reduce C line
frequency noise if necessary. ON implements the filter. OFF removes the filter. The NOTCH filter
can be tuned for the C line frequency in the country where the Model 4000 is being used by setting
the appropriate value in the Datawave Sciworks System.
Ref
Each Channel can either record differentially by comparing the input signals on its (+) leads versus
ground or the headstages reference. This is determined by the setting on the Datawave Sciworks
System.
Note that all of the channels will either be grounded or referenced to the external connector. It is not possible to have
some channels grounded, and some channels referenced to the headstages reference input.
Mode
Each channel can be turned off if not in use by the Datawave Sciworks System

10
4. Specifications
Noise: 5 µV rms maximum (10Hz-10kHz, inputs shorted)
Input Impedance: > 100kOhms @ 1kHz
Inter-channel Crosstalk: >90dB at 1kHz
Common Mode Rejection (CMR): 100dB
Rated Output
Voltage: ± 11V
Current: 5mA
High Pass Filter
Cut-Off Frequencies (Hz): 0.3, 1.0, 3.0, 10.0, 30.0, 100, 300, 500
Cut-Off Rate: 40dB / decade
Low Pass Filter
Cut-Off Frequencies (kHz): 0.1, 0.3, 0.5, 1.0, 3.0, 5.0, 10.0, 20.0
Cut-Off Rate: 40dB / decade
Gain (not including gain of headstage) 1, 2, 5, 10, 20, 50, 100, 200
Notch Filter
Frequency: 50Hz or 60Hz (User Selected)
Rejection: >30dB

11
5. Warranty
What does this warranty cover?
-M Systems. warrants to the Purchaser that the Instrument, excluding cables, Head stage Probes and any other
accessories shipped with the Instrument, (hereafter the “hardware”) is free from defects in workmanship or material
under normal use and service for the period of one (1) year. This warranty commences on the date of delivery of the
hardware to the Purchaser.
What are the obligations of A-M Systems under this warranty?
During the warranty period, -M Systems agrees to repair or replace, at its sole option, without charge to the Purchaser,
any defective component part of the hardware. To obtain warranty service, the Purchaser must return the hardware to
-M Systems or an authorized -M Systems distributor in an adequate shipping container. ny postage, shipping and
insurance charges incurred in shipping the hardware to -M Systems must be prepaid by the Purchaser and all risk for
the hardware shall remain with purchaser until such time as -M Systems takes receipt of the hardware. Upon receipt,
-M Systems will promptly repair or replace the defective unit, and then return the hardware to the Purchaser, postage,
shipping, and insurance prepaid. -M Systems may use reconditioned or like new parts or units at its sole option, when
repairing any hardware. Repaired products shall carry the same amount of outstanding warranty as from original
purchase, or ninety (90) days which ever is greater. ny claim under the warranty must include a dated proof of
purchase of the hardware covered by this warranty. In any event, -M Systems liability for defective hardware is limited
to repairing or replacing the hardware.
What is not covered by this warranty?
This warranty is contingent upon proper use and maintenance of the hardware by the Purchaser and does not cover
batteries. Neglect, misuse whether intentional or otherwise, tampering with or altering the hardware, damage caused by
accident, damage caused by unusual physical, electrical, chemical, or electromechanical stress, damage caused by failure
of electrical power, or damage caused during transportation are not covered by this warranty. Products may not be
returned to -M Systems for service, whether under warranty or otherwise, which are contaminated by infectious
agents, radioactive compounds or other materials constituting a health hazard to employees of -M Systems
What are the limits of liability for A-M Systems under this warranty?
-M Systems shall not be liable for loss of data, profits or savings, or any special, incidental, consequential, indirect or
other similar damages arising from breach of contract, negligence, or other legal action even if the company or its agent
has been advised of the possibility of such damages, or for any claim brought against you by another party. THIS
EQUIPMENT IS NOT INTENDED FOR CLINIC L ME SUREMENTS USING HUM N SUBJECTS. -M
SYSTEMS DOES NOT SSUME RESPONSIBILITY FOR INJURY OR D M GE DUE TO MISUSE OF THIS
EQUIPMENT. Jurisdictions vary with regard to the enforceability of provisions excluding or limiting liability for
incidental or consequential damages. Check the provision of your local jurisdiction to find out whether the above
exclusion applies to you.
This warranty allocates risks of product failure between the Purchaser and -M Systems -M Systems hardware pricing
reflects this allocation of risk and the limitations of liability contained in this warranty. The warranty set forth above is
in lieu of all other express warranties, whether oral or written. The agents, employees, distributors, and dealers of -M
Systems are not authorized to make modifications to this warranty, or additional warranties binding on the company.
ccordingly, additional statements such as dealer advertising or presentations, whether oral or written, do not constitute
warranties by -M Systems and should not be relied upon. This warranty gives you specific legal rights. You may also
have other rights which vary from one jurisdiction to another.

12
A-M Systems 4000 Manual DRW-5027910 Rev 1 Page 12 of 12
Approved: Approval Date: 3/4/09
Revision History
Rev Date Description
1 3/5/09 Initial Document Release
Table of contents
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