system 1000 - cwe, inc · system 1000 bma-931 bioamplifier high-performance, low-noise ac/dc...

SYSTEM 1000Modular

Instrumentation

www.cwe-inc.com

CWE, INC.

OFF

OUTPUT

RANGEX100

X101KHz

MEANFILTER

INPUT

PA-931 PRESSURE

BALANCE SENSITIVITY

SYSTEM 1000

BMA-931 BioamplifierHigh-performance, low-noise AC/DC preamplifier for a variety of biopotential

recordings. Its wide bandwidth, sharp cutoff bandpass filters, and stable DCresponse make this the ideal choice for EMG, ENG, ECG, and all extracellularapplications. Compatible with the SUPER-Z High-impedance head-stage, and theISO-Z Isolation Amplifier head-stage for safe human recording. A variety of elec-trodes and accessories is available.Standard Features:l Low-noise, DC-50kHz response, bandpass filters, adjustable DC offset

Applications:l EMG, ENG, ECG, EOG and other extracellular recording

Accessories:l SUPER-Z head-stage, ISO-Z isolated head-stage, pre-wired cablesl MA-1000 Moving Averager, WD-1000 Window Discriminator

PM-1000 Transducer AmplifierVersatile amplifier for DC bridge-type transducers, including pressure, force,

and acceleration. Works directly with most resistive bridge and solid-state trans-ducers. Features very low drift and adjustable DC excitation voltage. Its wide sen-sitivity range, built-in low-pass filters (including mean pressure), and industrystandard input connector make the PM-1000 ideal for most transducer applica-tions. It can also be used as a stable differential DC preamplifier.Standard Features:l Low-noise, DC-5kHz response, stable balancing, low drift, GrassTM compatiblel Fine control of sensitivity with stepwise setting and continuous attenuator

Applications:l Blood pressure, airway pressure, force, acceleration, differential DC amp

Accessories:l DTX-1 blood pressure transducer l PS-1000 series transducers for air and gasses

PA-931 Transducer AmplifierInexpensive, easy to use DC bridge amplifier for a variety of transducer appli-

cations. Features wide gain range and 3-position low-pass filter. Directly compat-ible with GrassTM pressure and force transducers. Ten-turn dials are provided forsetting sensitivity and balance. Standard Features:l DC-5kHz response, stable balance adjustment, low-drift, GrassTM compatible

Applications:lBlood pressure, airway pressure, force measurements

Accessories:l DTX-1 blood pressure transducer l PS-1000 series transducers for air and gasses

500 5K2K

20K

10K

50K

MED

BIO

X10

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300

1001

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0OFFSET

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AC

CWE, INC.

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(Hz)

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1K

.31 3

1050.1

DC

10

AC/DC BIOAMPLIFIERMODEL BMA-931

GAIN

OUTPUT

HI

FREQ

SYSTEM 1000

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10 1mV

10

20200100

(Mean)

DC AMP

PullOn

CWE, INC.

10

X10

100500

50

5K.1

Hz

GND

0

1V

2

BRIDGE

MODEL PM-1000TRANSDUCER AMPLIFIER

BALANCE SENSITIVITY

FILTER

ATTEN

POSITION

INPUT

OUTPUT

SYSTEM 1000

SYSTEM 1000 Instrumentation

CWE, Inc. 25 St.Paul’s Road, Ardmore, PA 19003 U.S.A.www.cwe-inc.com 610-642-7719 FAX 610-642-1532

P H Y S I O L O G Y • R E S P I R A T I O N • A N E S T H E S I A • D A T A A C Q U I S I T I O N

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DC-936 BUFFER

OUTPUTINPUT

POS

GAIN

POS

GAIN

POS

GAIN

POS

GAIN

POS

GAIN

POS

GAIN

CWE,INC.

SYSTEM 1000

MA-1000 Moving AveragerThe Moving Averager is used to quantify nerve and muscle electrical activity.

This module comprises an adjustable gain input amplifier, precision full-wave rec-tifier, and selectable time-constant Moving Averager (Paynter Filter). The largerthe time constant, the greater the smoothing effect of the filter. Standard time con-stants are 50, 100, and 200mS; the values most often used for EMG and ENGrecording. Other values between 10mS and 500mS are available and can beinstalled by the user via convenient plug-in modules.Standard Features:l Pushbutton time constant selection, adjustable gain and output offsetl Rectified and Moving Average outputs, switchable AC or DC coupling

Applications:l Nerve and muscle electrical activity measurement

Accessories:l BMA-931 Bioamplifier, additional MA-821-TCM time constant modules

TM-1000 Temperature Measurement ModuleThis microprocessor-based module accepts standard YSI-400 series thermistor

probes for measurements in the range 0 - 50oC, or 32 - 122oF. Temperature is dis-played on a digital readout in degrees C or F, and an analog output is provided forexternal recording. A built-in high/low adjustable provides and audible warning ifthe monitored temperature goes outside the alarm settings.Standard Features:l 4-digit display, 12-bit D/A output, selectable for display of oC or oFl Adjustable high and low alarm

Applications:l Monitoring body temperature or bath temperature

Accessories:l Thermistor probes available for rectal body temperature on a variety of animals,

including mice.

DC-936 Six-channel DC Buffer AmplifierThis module provides six independent DC buffer amplifiers, each with

adjustable gain, offset, and polarity. These amplifiers are used to boost, attenuate,offset, or invert signals going from one piece of equipment to another. Typicalapplications include adjusting signal levels for data acquisition systems. Gain andoffset are set using screwdriver-adjust potentiometers. Once you have one of these,you will find it indispensible! Standard Features:l Adjustable gain 0.1 - 10X, +10V DC offset, invert/non-invert, BNC jacks

Applications:l Interfacing to data acquisition systems, general purpose signal manipulation

Accessories:l BNC patch cables

MA-1000MOVING AVERAGERGAIN

TIMECONSTANT

mS

DC OFFSET

PULLON

X1 X10

RECT OUT

INPUT M.A. OUTDC

AC

SYSTEM 1000

100

50

200

CWE, INC.

TM-1000TEMPERATURE MODULE

C

F

ALARM SETHIGH

LOW

PROBE

ALARM

DISPLAYCENT.

FAHR.

TEMP OUT

ALARM OUTBEEP

ON

OFF

37.0

SYSTEM 1000




WD-1000WINDOW DISCRIMINATOR

DATA OUTDATATIME/AMP

AMPLITUDE NEG

THRESHOLD A OUT B OUT

INPUT MPX OUTSCOPE TRIG

LEVEL B

LEVEL ATIME POSITION

CWE, INC.

MODEPOS

SLOPE

CT-1000 CardiotachometerThe CT-1000 is an advanced, microprocessor-based instrument for the accu-

rate measurement of heart rate and beat-to-beat interval measurement. It has abuilt-in medical-grade isolation amplifier for direct ECG electrodes, and alsoaccepts high-level signals such as arterial BP. The CT-1000 features one buttonsetup and automatic tracking of signal levels. Outputs available are: amplifiedECG, R-wave logic signal, and analog rate (or interval) output signal.

Standard Features:l R-wave detection, rate or interval updated on each beatl Direct, isolated ECG electrode inputs or BP signal input

Applications:l Accurate heart rate and R-R interval measurement

Accessories:l Pre-wired input cable & electrodes, PM-1000 amplifier & BP transducer

RIC-1000 Rate/Interval CounterThe RIC-1000 is a versatile instrument for measuring the frequency or inter-

val of pulse-type events. A crystal timebase provides resolution to 100uS. Thecount can be updated continuously, or at the end of each interval (sample/hold).This allows histogram frequency displays or trend lines. The RIC-1000 requiresonly the input signal to function; no external gating or reset pulses are required.The wide-range timebase allows measurements over five decades, or more usingthe external clock input.The RIC-1000 makes the perfect companion to the WD-1000 Window Discriminator.Standard Features:l 4-digit display, 12-bit D/A output, wide timing range, flexible counting modesl Positive/negative trigger select, Schmitt trigger input

Applications:l Nerve firing frequency, general purpose rate or interval measurement

Accessories:lWD-1000 Window Discriminator

WD-1000 Time/Amplitude Window DiscriminatorThe window discriminator is used to separate single neuron action potentials

from multi-unit recordings. It can operate as a classic voltage amplitude windowdiscriminator, or as a time/amplitude discriminator. In the latter mode, the signalmust fall within a voltage and an adjustable time window. This permits separatingsimilar pulses that differ only in timing. Outputs are available from both windowlevels, a data output, and an independent trigger output for synchronizing the oscil-loscope trace. These outputs allow simultaneous discrimination of three signals. Standard Features:l Voltage or time/amplitude window, multiplexer and scope trig outputsl Separate outputs for each level crossing

Applications:l Discrimination of single units from multi-unit recordings

Accessories:l BMA-931 Bioamplifier, RIC-1000 Rate/Interval Counter

CWE, INC.

R OUT

CT-1000CARDIOTACHOMETER

INPUT

ISO

AMP OUT

ANALOG OUT

BPM

mS

ERRLOCKECG SAT

SETUPGAIN

AUTO

MAN

RATE

R-R INT

CAL60 bpm

120 bpm LO LEVEL

HI LEVELBEEP

ON

OFF

NORM

INVERT

(SEC)

EXT

.1110

.001

.0001

.01

CLOCK

POS

NEG

S/HINTERVAL

CONTRATE

RIC-1000RATE/INTERVAL COUNTER

TIMEBASE

INPUT TRIG OUTPUT

OVERDATA

CWE, INC.




ALM-932 Two-Channel Alarm/MonitorMonitors the output of any two channels in the card-cage, and signals an alarm

condition if preset limits are exceeded. Adjustable high and low alarms are pro-vided for each channel. LED indicators show which alarm condition exists, and abeeper (switchable) provides an audible warning. Digital meters show signal volt-age, which can be calibrated to reflect “real-world” measurements. Logic outputsare provided for all alarms, and are accessible on the rear edge-card connector.

Standard Features:lWide input range, adjustable high and low alarmsl Logic outputs for external control or monitoring of alarms

Applications:l Blood pressure, heart rate limit alarmsl Body temperature, expired CO2 alarms

DF-932 Two-Channel DifferentiatorTwo channel processor that produces the first derivative of the input signal.

Useful in cardiac studies for creating dP/dt of pressure waveforms.The secondderivative (acceleration) can be produced by cascading the two channels. Ten cal-ibrated sensitivity settings cover the range 20 - 200V/s, where each setting corre-sponds to the input slope required to produce 1V output.

Standard Features:lWide sensitivity rangel Two independent channels, can be cascaded for acceleration studies

Applications:l Cardiac output, blood flow studiesl Volume to flow conversion

BPF-932 Two-Channel Bandpass FilterHigh-performance bandpass filter. High-pass settings from DC to 100Hz.

Low-pass settings 10Hz to 50kHz. Uses 2-pole active filters with Butterworthresponse for minimum amplitude distortions in passband. Overall gain is jumperselectable for X1 or X10. Useful for filtering transducer signals to reduce high-fre-quency noise, and for selective filtering of biopotentials such as EMG or EEG.

Standard Features:l High-pass settings: DC, 0.1, 3, 10, 30, and 100Hzl Low-pass settings: 10, 100, 300Hz, 1, 10, 50kHzl -12dB/octave cutoff slope

Applications:l Transducer conditioningl Filtering of EMG and other biopotentialsl Cleaning up signals prior to data acquisition

CWE,INC.

ALM-932ALARM MODULE

A

B

LO LIMIT HI LIMIT

OFF

LO LIMIT HI LIMIT

OFF

HI

LO

CAL

CAL

SETHI

SETLO

SETHI

SETLO

ALARMON

ALARMON

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LO

32 45

32 451

1

CHANNEL

CHANNEL

SYSTEM 1000

CWE, INC.

MODEL BPF-932BAND-PASS FILTER

INPUT OUTPUT

CHANNEL B

HIGHKHz

FREQUENCY

LOWHz

HIGHKHz

100

0.1

30

10

3

DC 50

0.01

0.1

0.3

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10

INPUT OUTPUT

CHANNEL A

FREQUENCY

LOWHz

100

0.1

30

10

3

DC 50

0.01

0.1

0.3

1

10

SYSTEM 1000

INPUT OUTPUT

0

60

20 20018040

160

14080100 120POSITION

SENSITIVITY

OUTPUTINPUT

0

60

20 20018040

160

14080100 120POSITION

SENSITIVITY

CHANNEL A

INPUT SLOPE TOPRODUCE 1V OUTPUT

INPUT SLOPE TOPRODUCE 1V OUTPUT

V/S

V/S

PullOn

PullOn

MODEL DF-932DIFFERENTIATOR

CWE, INC.

SYSTEM 1000

CHANNEL B




PI-1000 Respiratory IntegratorThe PI-1000 is a low-drift integrator intended primarily for respiratory airflow

studies. Two independent matched integrators allow a variety of breath-by-breathor cumulative volume waveforms to be produced. A wide time-constant range cov-ers the full range of animal and human measurements. A built-in low-pass filterreduces noise from valve flutter or transducer vibration. The integrator is typical-ly used with a pneumotach, sensitive differential pressure transducer, and trans-ducer amplifier for a complete measurement system.Standard Features:l Very low drift, single breath or cumulative volume, automatic reset

Applications:l Respiratory volumes, general purpose signal integration

Accessories:l Pneumotach, PS-1000/A-004 transducer, PM-1000 Transducer Amplifier

DI-1040 Eleven-channel Expander ModuleUsed with the Dataq WinDaq data acquisition system (and others) to provide

direct access to channels 6 through 16. It is always used in the sixth module slot(right-hand side), where its outputs are automatically fed to the rear panel 37-pinD-SUB connector. The DI-1040 is used with high-level signals, and is configuredby jumpers for +2.5, 5, or 10V input ranges. Custom gain settings can also be con-figured by resistor selection.

Standard Features:l Selectable gain, non-inverting operation, high input impedance, BNC jacks

Applications:l Access channels 6 - 16 of data acquisition system

Accessories:lWinDaq data acquisition hardware and software

BL-1000 Blank module for custom instrumentationThis module is for those desiring to create custom circuitry using the same

form factor as the other SYSTEM 1000 modules. Included is a blank module withclear anodized aluminum finish and an installed prototyping circuit board. The cir-cuit board has a gold-plated edge connector, power busses, silk-screened labels,and plated-through holes for easy and reliable circuit construction.

Standard Features:l Complete package for creating custom SYSTEM 1000 module

Applications:l Custom circuitry for special functions

CWE,INC.

.1.2

.5

.015

.05

.022

1

PI-1000 INTEGRATOR

BOTH

OFF OFF

INS

EXP

OFF

SB

RAMP

75Hz

15HzINPUT OUTPUT

EXT RESETLEVELRESET

RESET

TIMECONSTANT

BALANCE

ON ONEXPINS

FILTER

PROGRAM

CWE, INC.

DI-1040EXPANDER MODULE

CHAN.7CHAN.6 CHAN.8

CHAN.15 CHAN.16

CHAN.13CHAN.12 CHAN.14

CHAN.10CHAN.9 CHAN.11




SUPER-Z High-Impedance Head StageAn auxiliary high-impedance probe for use with the BMA-

931 Bioamplifier and other CWE amplifiers using a 7-pinAmphenol input connector. Precision, low-drift input buffers withvery high impedance allow the SUPER-Z to be used with anyelectrode type. Provides switchable 1X/10X gain, a 5-step micro-volt calibrator, and precision DC offset control. Standard 2mmpin jacks for input, with 12-ft cable to amplifier.

ISO-Z Isolation Amplifier Head StageA medical-grade isolation amplifier head stage for use with

the BMA-931 Bioamplifier and other CWE amplifiers. Providescomplete electrical isolation for safe recording from human sub-jects. Fixed gain of 10X, with pushbutton AC calibrator.TouchProof 1.5mm DIN jacks for input, with adapters suppliedfor use with 2mm pin plugs.

PS-1000 Series Pressure TransducersThese are differential, solid-state pressure transducers for use

with air or non-corrosive gasses only (not for use with liquids).They are accurate, stable, and inexpensive. The PS-1000/A-1 has arange of +70cmH2O, which is ideal for respiratory pressure mea-surements. Model PS-1000/A-004 has a range of +10cmH2O, andis used with a pneumotach for respiratory airflow measurements.

DTX Blood Pressure TransducersThese are industry standard, solid-state, electrically isolated

blood pressure transducers. They are nominally single-use forhumans, but can be cleaned and re-used indefinitely with animals.Available individually or in sterile packs of ten. Requires TC-GRAadapter cable.

CALCAL X10

DCX1

SUPER-Z

CWE

OFFSETAC20uV

200

500

50

1mV

USE

C

75cm

H O

PRES

SUR

E TR

ANSD

UC

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PS-1

000/

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USE

WIT

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IQU

IDS

CW

E, IN

C.

MAX

DIF

PR

ESSU

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2

CAL

GAIN=10

CIsolationHead-Stage

ISO-Z

500uVP-P ISO

SYSTEM 1000 Accessories



Input cables, electrodes, and misc.A variety of pre-wired input cables, ECG and EMG electrodes, and adapter cables is available. Un-wired input

connectors are supplied with each amplifier, ready for custom wiring. Pre-wired cables are are 3m long, with 2mmpin jacks for electrode wire connection. Disposable electrodes, as well as high-quality re-usable Ag-AgCl elec-trodes and accessories are available. Consult the Price List for ordering information.

General InformationSYSTEM 1000 is a flexible and economical modular instrumentation system. To use the modules described

here, you need a CC-1000 card-cage (six module size) or CC-1000/3 (three module size). Each comes with a uni-versal-input power supply. For benchtop placement, a handsome and rugged molded DeskTop Enclosure isavailalble.

SYSTEM 1000 can be used as a versatile, direct-connect signal conditioning front-end for your data acquisi-tion system. The CC-1000 card-cage has a DB-37 output connector that feeds the module output signals directlyto most data acquisition systems.

Notes:1. SYSTEM 1000 components are not to be used for Human Life Support Applications.2. Specifications subject to change without prior notice.

CC-1000 Six Module Card-CageThis is a rack-

mount or benchtopcard-cage that is thefoundation of anyS Y S T E M 1 0 0 0setup. It fits into astandard 19" equip-ment rack, andoccupies 3U (5.25") height. The card-cage holds up to six instrumentation modules of your choice. DC powerfor the modules is introduced via a DIN connector accessible from the rear of the chassis.

Individual channel inputs and outputs are available on the motherboard at the back of the chassis. A D-SUB37-pin connector also provides all channel outputs, and is directly compatible with the Dataq InstrumentsWinDAQ data acquisition system. A handsome molded desktop enclosure (Model DTE-1000) is available as anoption. Also available is a 3-module card-cage (Model CC-1000/3), with corresponding desktop enclosure(Model DTE-1000/3).

Standard Features:l Holds six modules; three module card-cage also availablel Shielded enclosure fabricated from aluminum with steel coversl Standard CC-1000 comes with universal power supply

Options:l DTE-1000 Desktop enclosurel CC-1000/ADP power splitter cablel CC-1000/3 Three-module card-cage

Power supply to card-cageconnector



SYSTEM 1000 Power SupplyThis is the standard power supply furnished with the

CC-1000 card-cage. It is a universal input supply thataccepts 95-240VAC, and features a standard detachablepower cord. The output cable is 6' long and terminatedwith a DIN plug which mates with a jack on the rearpanel of the CC-1000 card-cage. This power supply hassufficient capacity to provide power to two CC-1000card-cages (up to 12 modules). To do this, modelCC-1000/ADP adapter cable is required.

Features and Specifications:Input range . . . . . . . . . . . . . . .95-240VAC, 50/60HzMax power consumption . .1A @115V, 0.5A @ 230VOutput . . . . .+5V @ 2A, +12V @ 1.5A, -12 @ 0.3ADimensions . . . . . . . . . . . . .6.5L x 3W x 2D inches

Note: Be sure to indicate the country where theSYSTEM 1000 instrumentation will be used. Wewill then be able to provide the correct power sup-ply cord.

1

25

3

4

DIN Cable Plug

-12V

GND

+12V

+5V


system 1000 - cwe, inc · system 1000 bma-931 bioamplifier high-performance, low-noise ac/dc...

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