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
Automotive
DEWE-50-USB2-8
Modular USB data acquisition system for isolated signal conditioners
When connected to the high speed USB 2.0 interface of
any computer the DEWE-50-USB2-8 becomes a powerful
measurement instrument for analog, digital, counter
and CAN-bus data capture. Simply connect a webcam
to your computer and add video information to your
recorded data.
Key Features
Connects to any computer via USB interface
8 slots for isolated DAQP-series signal
conditioners
24 bit resolution, 204.8 kS/s per channel
Eight simultaneous analog inputs sample data at up
to 204.8 kS/s and in combination with DAQP-series
isolated signal conditioners almost any sensor can be
connected.
Simultaneous sampling, separate ADC per channel
Popular measurands are:
EPAD2 expansion for slow signals
Strain
Current
Acceleration
Force
Torque
Pressure
Sound
Position
RPM
Frequency
Velocity
Resistance
And more
The included DEWESoft application software adds
powerful measurement and analysis capability, turning
the DEWE-50-USB2-8 into a dedicated recorder, scope,
data logger or FFT analyzer.
2 high speed CAN interfaces
DEWESoft instrument software included
The DEWE-50-USB2-8 is the perfect fit for
Mobile applications
e.g. mobile shock and vibration tests
Field service
e.g. bringing into service tasks
Maintenance
e.g. order tracking
In-vehicle tests
e.g. trouble shooting, OBDII data recording
Industrial applications
e.g. balancing
The isolated signal conditioners make this unit almost
indestructible and a safe investment for many years.
pORTABLE inSTRUMENTs DEWE-50-USB2-8
Voltage
2 counters or 6 digital inputs
www.dewetr o n.c o m
1
Connectivity
Analog input
There are eight slots for DAQP series isolated signal
conditioners. The internal A/D system offers 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.
DEWETRON offers a wide range of DAQP modules, see pages
6 and 7 for an overview.
USB and SYNC interfaces
The USB connection to a host computer is secured with
a unique mini-USB connector which actually screws into
the backside of the DEWE-50-USB2-8, locking it in place,
and guarding against accidental disconnection.
For channel expansion up to 16 analog inputs a second
DEWE-50-USB2-8 can directly be attached to the unit,
USB and SYNC interfaces are prepared.
EPAD
To enable signal conditioning for additional slow signals an EPAD interface is prepared. DEWETRON EPAD2 series
modules to acquire quasi-static thermocouple, RTD, voltage or current signals can be connected to this interface by
a single cable. The sampling rate of an EPAD2 input channel is approx. 10 Hz / amount of modules.
pORTABLE inSTRUMENTs DEWE-50-USB2-8
CAN
2
There are two high speed CAN interfaces which 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 a CAN interface. These modules have the same
features as EPAD2 but the sampling rate does not depend on the amount of attached modules, so it can be 10 Hz
in any case.
Option 50-8-OUT-5
Optional eight BNC sockets can be installed to provide access to the conditioned ±5 V signal of each DAQP
module.
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Counter input features
DEWETRON has advanced the state-of-the-art in
counter/encoder inputs in our data acquisition
systems.
The key advancement is that our counters
are PHASE SYNCHRONIZED. Referring to the
diagram, you can see that a standard counter is always a sample behind. With software
interpolation you can get closer, but only with
DEWETRON’s advanced time shifting technology are both the phase and amplitude fully
corrected!
ADC-clock
Counter input
Ideal counting
ORION-counter
Software interpolation
Standard counter
RPM-Measurement
Encoder
Tacho
Gearthooth, CDM
Gearthooth, TRG, CDM and TRG
Gearthooth with missing teeth
Gearthooth with double teeth
Length-measurement
Linear encoder
Linear pulse sensor
Basic counting
Gated counting
Up/down counting
Waveform Timing
Period frequency
Two pulse edge separation
Period, pulse width,
frequency, duty cycle
pORTABLE inSTRUMENTs DEWE-50-USB2-8
Event Counting
Portable instruments • DEWE-50-USB2-8
3
DEWESoft
Our award-winning data acquisition package is second to none when it comes to both pure recording power and
ease of use. Normally it is a difficult balancing act to provide lots of capability and performance, without making the
user interface cumbersome and hard to learn. But with careful and innovative design, we have done exactly that!
DEWESoft is the solution to acquire signals synchronous from different sources, display and store them together
and perform quick analyses.
Typical DEWESoft online display
Key Features
Perfect sync of analog, digital, counter, CAN, GPS,
Video, ARINC, 1553 data … and even more
pORTABLE inSTRUMENTs DEWE-50-USB2-8
Fast and easy setup of all kinds of input channels
Failsafe and simple sensor setup by TEDS or
sensor database
Powerful online data processing, MATH functions,
filters, statistics, reference curves
Attractive online display of all kind of data,
creation of displays is a matter of seconds
File browser in analyze mode
Various storing strategies, stream data to hard
disk (up to 100 MB/s), triggered storing or
database storing
Analog, digital or CAN data output, powerful
function generator, alarms, CAN messages
Build test procedures in a form of workflow
diagram by means of our sequencer
Fast data analysis, reload GB files in seconds
Post processing, a data file can be postprocessed on any computer
Ready to us applications, Power calculations,
Combustion analysis, Torsional Vibration, Order
tracking, Sound analysis, Frequency response
function, Human vibrations, Balancing ... and even
more
Typical DEWESoft report
4
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Specifications
DEWE-50-USB2-8
ANALOG INPUT
Number of channels
8 (simultaneously sampled)
Measured values
According installed DAQP modules
Internal A/D system
Resolution
24 bit
Type of ADC
Sigma-Delta
Sampling rate
204.8 kS/s
-3 dB bandwidth
76 kHz @ 204.8 kS/s
(consider possible limit of DAQP module)
Accuracy
±0.1 % of range, ±0.5 mV
DYNAMIC CHARACTERISTICS
Signal to noise @ fs<1000 Hz
< 100 dB
Crosstalk
< 100 dB
COUNTER/DIGITAL INPUTS
Number of channels
Counter modes
2 counters or 6 digital inputs
(per software each counter can be selected to be 3x digital input)
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 50°C
Storage temperature
-20 to 70°C
Relative humidity
95 % non condensing @ 60°C
Vibration
tbd
Shock
tbd
PROCESSING
System
Requires PC based system with DEWESoft software
Interface
USB 2.0
POWER REQUIREMENTS
Supply voltage
9 to 36 V DC
Typical power consumption
Typ. 20 W
(5 W internal A/D system + DAQP modules)
PHYSICAL
Dimensions (L x W x H)
230 x 181 x 104 mm
(9.06 x 7.13 x 4.09 in.)
Weight
Software
Displays
Recorder, Scope, FFT, 3D Waterfall FFT, Octave, …
Triggers
Edge, Filtered Edge, Window, Pulsewidth, Slope, FFT, …
Online standard mathematics
Online special mathematics
Formula editor, FIR-, IIR-, FFT-filter, basic statistics, reference curve
Human Body Vibration, Order Tracking, Rotational & Torsional Vibration, Sound Level, Frequency Response Function
System options
Option
Description
50-8-OUT-5
8 BNC connectors on back panel, ±5 V output of DAQx-modules
50-8-SYNC
Synchronization option for two DEWE-50-USB2-8. Allows using max. two units as a 16 channel system,
synchronization cable 50-8-CBL-SYNC-x needs to be ordered additionally.
pORTABLE inSTRUMENTs DEWE-50-USB2-8
Typ. 3 kg (2.5 kg + DAQP modules)
6.6 lb. (5.5 lb. + DAQP modules)
Portable instruments • DEWE-50-USB2-8
5
Selection guide
DAQ series modules
Single channel
High bandwidth - for dynamic signals
Isolation (most models)
Analog signal output (±5 V)
Single channel modularity
Module
Input type
Ranges
Strain gauge, bridge sensors
Piezoresistive bridge
Voltage
Resistance
Pt100, Pt200, Pt500, Pt1000,
Pt2000
±0.1 to ±1000 mV/V (@ 5 VDCexc)
±0.5 to 10000 mV/mA (@ 1 mAexc)
Bandwidth (BW),
TEDS Filters (LP = lowpass,
HP = highpass)
Isolation (ISO),
Overvoltage
protection (OP)
Universal measurement
DAQP-STG
V
®
MSI
MSI
MSI
■
BW: 300 kHz
LP: 10 Hz to 300 kHz
ISO: 350 VDC
OP: ±50 VDC
±500 µV to ±10 V
25 mΩ to 100 kΩ
-200° C to 850° C
IEPE via MSI-BR-ACC
Thermocouple via MSI-BR-TH-x
Charge via MSI-BR-CH-50
Voltage via MSI-BR-V-200
±2.5 to ±10000 mV
full range of TC type
up to 50000 pC
up to ±200 V
High voltage
±20 to ±1400 V
-
BW: 300 kHz
LP: 10 Hz to 300 kHz
ISO: 1.8 kVRMS
High voltage
±20 to ±1400 V
-
BW: 700 kHz
LP: 10 Hz to 700 kHz
ISO: 1.8 kVRMS
High voltage
±10 to ±1000 V
-
BW: 20/30 kHz
LP: 10 Hz to 30 kHz
ISO: 1.5 kVRMS
Voltage
Current with external shunt
±10 mV to ±50 V
20 mA / 5 A
±10 mV to 10 V
■
BW: 300 kHz
LP: 10 Hz to 300 kHz
ISO: up to 1 kVRMS
OP: 350 VDC
High voltage measurement
DAQP-HV
V
DAQP-HV-S3
V
pORTABLE inSTRUMENTs DEWE-50-USB2-8
DAQP-DMM
V
Voltage & current measurement
DAQP-LV
V
®
IEPE via MSI-V-ACC
Pt100, Pt200, Pt500, Pt1000,
Pt2000 and resistance via
MSI-V-RTD
Charge via MSI-V-CH-50
-200° C to 1000° C and
0 to 6.5 kOhm
Voltage
Current with external shunt
10 mV to 50 V
20 mA / 5 A
-
BW: 50 kHz
LP: 10 Hz to 50 kHz
ISO: up to 1 kVRMS
OP: ±500 VDC
Voltage
±10 V (1:1 input)
-
-
OP: < ±500 V
(jumper
selectable)
DAQP-LA-SC
Current
Note: 5 ARMS continuous
0.1 A to 30 A peak
max. 5 ARMS contin. current
-
BW: 300 kHz
LP: 10 Hz to 300 kHz
ISO: 1.4 kVRMS
DAQP-LA-B
Current
Note: typ. 20 mA application
2 mA to 600 mA
-
BW: 300 kHz
LP: 10 Hz to 300 kHz
ISO: 1.4 kVRMS
MSI
MSI
MSI
DAQP-V
V
DAQN-AIN
up to 50000 pC
V
Current measurement
■ = standard
6
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Module
Input type
Bandwidth (BW),
TEDS Filters (LP = lowpass,
HP = highpass)
Ranges
Isolation (ISO),
Overvoltage
protection (OP)
Bridge / strain gauge and carrier frequency amplifier
DAQP-CFB
DAQP-BRIDGE-A
DAQP-BRIDGE-B
AC bridge, strain gauge
Note : 5 kHz sine wave excitation
Bridge: 0.1 to 1000 mV/V
-
Inductive sensors, LVDT
Inductive: 5 to 1000 mV/V
Strain gauge, bridge sensors
±1 to ±50 mV/V (@ 5 VDC)
Potentiometric sensors
200 Ω to 10 kΩ
Strain gauge, bridge sensors
±0.1 to ±100 mV/V (@ 5 VDC)
Potentiometric sensors
200 Ω to 10 kΩ
BW: DC to 2.3 kHz
OP: ±10 VDC
LP: 10 Hz to 1 kHz
-
BW: 20 kHz
LP: 10 Hz to 20 kHz
ISO: 350 VDC
OP: ±10 VDC
■ 1)
BW: 200 kHz
LP: 10 Hz to 200 kHz
OP: ±10 VDC
Charge / IEPE® measurement
®
DAQP-ACC-A
IEPE sensors
±50 mV to ±5 V
-
BW: 0.5 Hz to 300 kHz
LP: 1 to 300 kHz
HP: 0.5 Hz and 5 Hz
-
DAQP-CHARGE-A
Charge sensors
Charge: 5 to 50000 pC
IEPE®: ±5 mV to 5 V
-
BW: 0.1 Hz to 50 kHz
LP: 100 Hz to 50 kHz
HP: 0.1 Hz to 10 Hz
-
±100 to ±1 000 000 pC
-
BW: DC to 100 kHz
ISO: 350 VDC
®
IEPE sensors
Note: selectable integration and
double integration
DAQP-CHARGE-B
Charge sensors
LP: 10 Hz to 100 kHz
Note: selectable time constant
HP: DC, 0.001 Hz to 0.5 Hz
for static sensors
Temperature measurement
DAQN-THERM-x
K and J type (others on request)
DAQN-THERM-1 K: -30 to 170 °C
DAQN-THERM-2 K: -30 to 370 °C
DAQN-THERM-3 K: 0 to 1000 °C
DAQN-THERM-4 K: -100 to 1350 °C
DAQN-THERM-5 J: -100 to 760 °C
-
BW: 4 Hz
ISO: 1 kVRMS
Thermoresistors
Pt100
DAQN-RTD-1: -30 to 170 °C
DAQN-RTD-2: -100 to 200 °C
DAQN-RTD-3: -50 to 600 °C
-
BW: 10 Hz
-
Frequency
100 Hz to 200 kHz
-
BW: according to range
Output response:
1.5 ms
30 ms
500 ms
ISO: 350 VDC
Voltage output
1:1 output module with isolation
Input voltage: ±10 V
Output voltage: ±10 V
-
BW: 400 Hz
ISO: 240 VDC
Thermocouple
Note: internal CJC
DAQN-RTD-x
Frequency measurement
DAQP-FREQ-A
Voltage output module
DAQN-V-OUT
■ = standard
TEDS support for DAQP-BRIDGE-B revision 2 only
ADAP-D9M-BNCF:
DSUB to BNC adapter
for DAQP-V series and
DAQP-FREQ modules
BNC to Microdot adapter
(included as a standard with
DAQP-CHARGE-A modules)
CONN-DSUB-9:
Screw terminal adapter
for all modules with 9-pin
DSUB connector
BNC to banana and
banana to BNC adaptors
Isolated high-voltage amplifier: DAQP-HV
pORTABLE inSTRUMENTs DEWE-50-USB2-8
OUT
1)
Portable instruments • DEWE-50-USB2-8
7
applications
Recorder
Order Tracking
voltage
Acceleration
Dedicated re-sampling method for sharp order separation
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
pORTABLE inSTRUMEnTS DEWE-50-USB2-8
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
Time domain measurement
The shown applications are only a few examples, many more can be covered using
the DEWE-50-USB2-8 instrument.
DEWETRON Ges.m.b.H. • Parkring 4 • A-8074 Graz-Grambach
Tel (0043) 316 3070 0 • Fax (0043) 316 3070 90 • sales@dewetron.com
8
www.de we t ron .com
DE-D100301E • All trademarks are acknowledged to be the property of their owners. Specification subject to change without notice. © DEWETRON Ges.m.b.H.
04/2010
Synchronous recording of different signals