dewe-43 universal usb instrument - DEWETRON Download Center

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UNIVERSAL USB INSTRUMENT
The high end DEWETRON
performance with the easy of
use DEWESoft, the entry product with
8 analog multi-sensor inputs
8 counter inputs
2 CAN-bus interfaces
CPAD2 expansion for
low speed temperature
DEWE-43
DATA SHEET

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DEWETRON
8 COUNTER INPUTS
Counter inputs can be used for measurement of brake pedal
switch, speed and distance from external velocity sensor,
speed of four wheels, steering wheel position and others.
High quality counter inputs are able to perform basic counting,
encoder measurement and frequency measurement in
the famous “supercounter” mode, which dramatically increases
the accuracy of counting.
2 CAN BUS PORTS
CAN bus inputs are able to acquire two full
speed CAN bus lines to connect to vehicle
CAN or connect special sensors with CAN
output.

CONNECTIVITY
8 ANALOG INPUTS
The analog inputs are able to
acquire data from sensors like
pedal force sensors, brake cylinder
pressure, temperature of
brake discs and others.
The system includes 8 simultaneous
sampled 24-bit analog
inputs with front-end amplifier
for connecting voltage and strain
sensors as well as MSI amplifiers
to measure thermocouple, IEPE
or other sensors.
Optional low speed temperature modules
DEWETRON CPAD2 series modules are connected to a CAN
interface of the DEWE-43 to add low speed temperature inputs.
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DEWESoft
Analog Inputs
The aliasing-free 24-bit A/D converter offers the best base for this precision instrument. Standard voltage and strain
inputs can be expanded for any kind of temperature, vibration or high voltage sensors by using the DEWETRON-MSI
(Modular Smart Interface) connectors. All MSIs are automatically recognized as soon as they are connected.
Multisensor Inputs
Modular Smart Interfaces for DEWE-43
MSI-BR-V-200
MSI-BR-ACC
MSI-BR-CH-50
MSI-BR-TH-K
MSI-BR-TH-J
MSI-BR-TH-T
MSI-BR-RTD
200 V input adapter with DB9 connector
Differential input configuration, BNC connector
TEDS for automatic adapter identification
IEPE adapter with DB9 connector
Excitation current 4 mA at 21 V, High pass filter 1.5 Hz,
BNC connector TEDS for automatic adapter identification
Charge input adapter with DB9 connector range up to 50000 pC,
AC coupled with 0.07 Hz, BNC signal connection,
automatic adapter identification
Thermocouple type K / J / T adapter with DB9 connector
For use with isolated thermocouple sensors only!
High accuracy cold junction reference measurement,
1 m thermo cable with Mini TC connector
TEDS for automatic adapter identification
Pt100, Pt200, Pt500, Pt1000 and Pt2000 adapter with DB9 connector
2, 3 and 4 wire connection methods,
5-pin Binder 710 series connector
TEDS for automatic adapter identification

A complete range of solutions
for dynamic vehicle testing.
SOFTWARE
Counters
DEWETRON has advanced the state-of-the-art in counter/encoder
inputs in our data acquisition systems,
improving yet again our counters.
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
DEWETRON 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
Event Counting
Basic counting
Gated counting
Up/down counting
Waveform Timing
Period frequency
Two pulse edge separation
Period, pulse width,
frequency, duty cycle
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DEWETRON
Easy-to-use
Synchronous data acquisition of different
sources
Data export to almost any analysis package
Powerful online mathematics and filtering
Extensions for special applications
Networkable operation with synchronization
DCOM programmable extensibility
DEWESoft turns your hardware into a powerful
data acquisition system. Our award-winning
data acquisition package is second to none
when it comes to both pure recording power
and ease of use. Normally this is a difficult
balancing act: providing lots of capability and
performance, without making the user interface
hard to learn. But we‘ve done it!
CAN Bus Data Recording
Every automobile, truck, motorcycle, and most
military vehicles and even some aircraft engines
use the CAN bus. The „Controller Area Network“
(CAN) is a serial bus containing hundreds of
messages, each containing one or more channels
of data. Cars, trucks, military vehicles,
and many aircraft engines use CAN to send
data about the engine, brakes, cooling system,
steering system, and dozens of other parameters.
CAN makes testing these machines a lot
easier when you can access important parameters
like the steering wheel angle, engine RPM,
and wheel speeds, by connecting to the CAN
bus rather than to spend hours instrumenting
the vehicle! In addition, more and more sensors today output their data on this multi-device, convenient data bus, and
thus the ability to record data from it becomes more and more important.
DEWETRON has been on the forefront of providing a powerful yet convenient interface for recording data from the CAN
bus, having introduced this in DEWESoft v5 in 2003. Today it is better and easier than ever, and we even added CAN bus
interfaces to our latest ORION cards, providing up to four synchronous CAN interfaces per system. Setup is convenient,
including the ability to import dbc database files, the de facto standard format for CAN channel setup.
Typical CAN-bus sensor
(measuring steering wheel)
Vehicle CAN-bus
diagnostic connector

TECHNICAL SPECIFICATIONS
ANALOG INPUT
Number of channels
Measured values
Resolution
Type of ADC
Sampling rate
8 (simultaneously sampled)
Voltage, full bridge (IEPE, charge, thermocouple and RTD with MSI adapters)
24-bit
Sigma-Delta
DEWE-43-DSA: 204.8 kS/s (DEWE-43: 51.2 kS/s)
-3 dB bandwith 76 kHz @ 204.8 kS/s (25 kHz @ 51,2 kS/s)
AMPLIFIER CHARACTERISTICS
Input ranges Voltage ±0.01 V, ±0.1 V, ±1 V, ±10 V
Accuracy
Input impedance
CMRR
Voltage via MSI-BR-V200
Full bridge
Half or quarter bridge
IEPE via MSI-BR-ACC
Thermocouple via
MSI-BR-TH-x
Pt100, Pt200, Pt500, Pt1000,
Pt2000 and resistance via
MSI-BR-RTD
up to ±200 V
±10 mV/V, ±100 mV/V, ±1000 mV/V
With external bridge completion
±0.1 V, ±1 V, ±10 V
Full range of thermocouple type
(isolated thermocouple only)
±0.1 % of range, ±0.5 mV
-200°C to 1000°C
and 0 to 6.5 kOhm
10 MΩ||33 pF (common mode), 20 MΩ||47 pF (differential mode)
>80 dB
Sensor supply voltage ±5 V 0.1 % @ 50 mA, 12 V @ 100 mA per channel (total max. 5W)
Voltage mode coupling
Overvoltage protection
DYNAMIC CHARACTERISTICS
Signal to noise @ fs

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(0043) 316 3070-0 • (0043) 316 3070-90 • sales@dewetron.com
DE-D080901E • All trademarks are acknowledged to be the property of their owners. Specification subject to change without notice. © DEWETRON Ges.m.b.H. 08/2009
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