Automotive

Energy & Power Analysis

Aerospace & Defense
Tr a n s p o r t a t i o n
G e n e r a l Te s t & M e a s u r e m e n t

DEWE-43
Universal Data Acquisition Instrument
When connected to the high speed USB 2.0 interface Key Features
of any computer the DEWE-43 becomes a powerful
measurement instrument for analog, digital, counter and Best price/performance ratio
CAN-bus data capture. Connects to any computer via USB interface
Eight simultaneous analog inputs sample data at up to 8 simultaneous sampled analog inputs
204.8 kS/s and in combination with DEWETRON Modular 24-bit resolution, up to 204.8 kS/s per channel
Smart Interface modules ( MSI ) a wide range of sensors
PORTABLE INSTRUMENTS DEWE-43

are supported 8 counter inputs or 24 digital inputs

2 high speed CAN interfaces
Voltage Acceleration
CPAD2 expansion for static signals
Pressure Force
DEWESoft instrument software included
Temperature Sound
Position RPM
Torque Frequency The DEWE-43 is a perfect fit for
Velocity And more Mobile applications
The included DEWESoft application software adds Field-service
powerful measurement and analysis capability, turning Maintenance
the DEWE-43 into a dedicated recorder, scope or FFT
analyzer. Debug and diagnostic tasks

For pricing or any further information, please contact Omni Instruments Ltd.
 Connectivity
Analog
There are eight analog inputs, each has its own sigma-delta A/D
converter and is sampled at up to 204.8 kS/s at 24-bit resolution.
Anti-aliasing filters are included for each channel and all are our
universal type, which can handle full bridges and voltages up
to 10 V natively and support our tiny Modular Smart Interfaces
(MSI). MSIs are able to convert any of the analog inputs to a
different input type, including IEPE accelerometer / microphone,
200 V, RTDs, thermocouples and charge.

Counter / Digital input

The DEWE-43 offers eight Lemo sockets where each can either
be used as one counter input or as three digital inputs this is a
software selection and can be set individually for each socket.
Thanks to the special DEWETRON technology, they are
acquired absolutely synchronously to the analog channels.
DEWETRON counters are able to perform
Basic counting Frequency measurement
Gated counting Pulse width measurement
Up/down counting Period time measurement
Two pulse edge separation Duty cycle

CAN
The two high speed CAN interfaces are able to acquire data from vehicle
CAN or vehicle OBDII interface as well as from any sensor outputting
CAN data. Additionally DEWETRON CPAD2 modules can be connected to
the CAN interface for adding slow channels like temperature.

DEWESoft - Data Acquisition Software

The powerful and very easy to use data acquisi- Easy-to-use
tion software DEWESoft turns the DEWE-43 into a Synchronous data acquisition of different sources
complete measurement instrument.
Data export to almost any analysis package
Synchronous data acquisition of different sourc-
Powerful online mathematics and filtering
es, data export to almost any analysis software
PORTABLE INSTRUMENTS DEWE-43

as well a the powerful online mathematics and Extensions for special applications
filtering are just a few key features. Networkable operation with synchronization
DCOM programmable extensibility

The standard version of the DEWE-43 includes

the basic version DEWESoft-SE and is sufficient
for many applications. For measurement tasks
like Order Tracking, Human Body Vibration, FRF,
Rotational & Torsional Vibration or Sound Level
measurement there is an extended DEWE-43-DSA
version available which includes the powerful
DEWESoft-DSA software. DEWE-43-DSA addition-
ally offers a faster sampling rate of 204.8 kS/s
per channel (standard DEWE-43 has 51.2 kS/s
per channel).
 SPECIFICATIONS DEWE-43-DSA DEWE-43
ANALOG INPUT
Number of channels 8 (simultaneously sampled)
Measured values Voltage, full bridge (IEPE, charge, thermocouple and RTD with MSI adapters)
Resolution 24-bit
Type of A DC Sigma-Delta
Sampling rate 204.8 kS/s
-3 dB bandwidth 76 kHz @ 204.8 kS/s
Voltage 0.01 V, 0.1 V, 1 V, 10 V
Voltage via MSI-BR-V200 up to 200 V
Full bridge 10 mV/V, 100 mV/V, 1000 mV/V
Input Ranges

Half or quarter bridge With external bridge completion

IEPE via MSI-BR-ACC 0.1 V, 1 V, 10 V
Thermocouple via Full range of thermocouple type
MSI-BR-TH-x (isolated thermocouple only)
Pt100, Pt200, Pt500, Pt1000, Pt2000 -200C to 1000C
and resistance via MSI-BR-RTD and 0 to 6.5 kOhm
AMPLIFIER CHARACTERISTICS
Accuracy 0.1 % of range, 0.5 mV
Input impedance 0__S)FRPPRQPRGH0__S)GLIIHUHQWLDOPRGH
CMRR >80 dB
Sensor supply voltage 5 V 0.1 % @ 50 mA, 12 V @ 100 mA per channel (total max. 5W)
Voltage mode coupling DC
Overvoltage protection 70 V
DYNAMIC CHARACTERISTICS
Signal to noise @ fs<1000 Hz < 100 dB
Crosstalk < 100 dB
COUNTER/DIGITAL INPUTS
Number of channels 8 counters or 24 digital inputs
(per software each counter can be selected to be 3x digital input)
Counter modes Event counting, encoder input, period, pulsewidth, duty cycle,
frequency measurement
Resolution 32-bit
Time base 102.4 MHz
Signal levels TTL/CMOS
Input voltage protection 30 V
CAN INPUTS
Number of channels 2
Specification CAN 2.0B, up to 1 MBaud
Physical layer High speed

ENVIRONMENTAL
Operating temperature 0 to 50C
Storage temperature -20 to 70C
Relative humidity 95 % non condensing @ 60C
PORTABLE INSTRUMENTS

PROCESSING
System Requires PC based system with DEWESoft software
Interface USB 2.0
POWER REQUIREMENTS
Supply voltage 6 to 36 V DC
Supply overvoltage protection 80 V
Negative input voltage protection -30 V
Typical power consumption Typ. 5 W (max. 11 W at full sensor supply load)
PHYSICAL
Dimensions (L x W x H) 223 x 78 x 45 mm (8.78 x 3.08 x 1.77 inch)
Weight 0.72 kg

SOFTWARE
Displays Recorder, Scope, FFT, 3D Waterfall FFT, Octave,
Triggers Edge, Filtered Edge, Window, Pulsewidth, Slope, FFT,
Online standard mathematics Formula editor, FIR-, IIR-, FFT-filter, basic statistics, reference curve
Online special mathematics DEWE-43-DSA: Human Body Vibration, Order
Tracking, Rotational & Torsional Vibration, -
Sound Level, Frequency Response Function
 Applications
Recorder Order Tracking
Synchronous recording of different signals
Dedicated re-sampling method for sharp order separation
Voltage Acceleration Measurement in time domain to keep all benefits
Pressure Force 2D, 3D waterfall in order or frequency domain
Temperature Sound Amplitude, phase extraction
Position RPM Recalculation in post processing
Torque Frequency Phase synchronous RPM input with 12.5 ns resolution
Velocity And more EASY TO SETUP











+

E

P

V
H
*

1
2
5
7
(
:
(
'


'('(  $OO WUDGHPDUNV DUH DFNQRZOHGJHG WR EH WKH SURSHUW\ RI WKHLU RZQHUV 6SHFLILFDWLRQ VXEMHFW WR FKDQJH ZLWKRXW QRWLFH
Torsional and Rotational Vibration Balancing
Time domain measurement User interface which guides through all steps
Angle based view Order tracking based balancing method
Additional to all other functions (analog, CAN, GPS, video, ...) Single or dual plane
Configurable display Multiple balancing for two directions saves time
Direct sensor connection 2D graph for plane view
80 MHz time base RPM channel with color indicator (RPM range)
High resolution 0.03rpm 2 mdeg@12000 rpm Alarm output if velocity exceeds predefined value
Displays tacho probe time signal to set trigger
Vector polar plots of 1st order of all runs
(initial, trail, ...)
Weight splitting
Acceleration, velocity, displacement in recorder
PORTABLE INSTRUMENTS DEWE-43

Time domain measurement

The shown applications are only a few examples,

many more can be covered using the DEWE-43
instrument.

' ( : ( 7 5 2 1 ,  I N C .   1 0 H i g h S t r e e t , S t e K   W a k e f i e l d R I 0 2 8 7 9 U S A

H 7 O 1 + 0 5 1 7 0 3 )4 - 4 8 2   ) 5 D 5 7 3 - [ 4 81 (0
2 1
+
)4   V D O H V # G a c H i r e m
Z  F R P