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DEWE-43A

TECHNICAL REFERENCE MANUAL

DEWE-43A V20-2

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Summary of Contents for DEWE-43A

Page 1: ...DEWE 43A TECHNICAL REFERENCE MANUAL DEWE 43A V20 2 1...

Page 2: ...ation 15 4 1 Connectors 16 4 1 1 Analog input 16 4 1 2 CAN connector 16 4 1 3 Counter input 17 4 1 4 Power supply 17 4 1 5 Sync connector 17 4 2 Typical sensor connection 18 4 2 1 Bridge sensor connec...

Page 3: ...ks 34 10 Safety instructions 35 10 1 Safety symbols in the manual 35 10 2 General Safety Instructions 35 10 2 1 Environmental Considerations 35 10 2 2 Product End of Life Handling 35 10 2 3 System and...

Page 4: ...DewesoftX software Technical data 2 1 Legend The following symbols and formats will be used throughout the document Important Gives you important information about a subject Please read carefully Hin...

Page 5: ...chnical reference manual 2 2 2 DewesoftX tutorials The DewesoftX tutorials document provides basics and additional information and examples for working with DewesoftX and certain parts of the program...

Page 6: ...70 mA limit Overvoltage protection 70 V input protection Noise floor 107 dB 10 V range Input impedance 20 M 47 pF differential 10 M 33 pF common mode Maximum common mode voltage 13 V Signal to noise...

Page 7: ...Power Power supply 9 36 V DC Galvanic isolation ISO POWER Isolated Sensor power supply Up to 10W total 12 V total limit 350 mA Shared between 8xAI 8xCounters 2xCAN 5 V total limit 700 mA Shared betwee...

Page 8: ...rejects signal parts greater than 51 2 kHz Nyquist frequency It also re samples the data to the more conventional rate of 102 4 kS s A 1 bit quantizer introduces many quantization errors to the signal...

Page 9: ...e anti alias lowpass filter with a cutoff frequency of about 250 kHz The very high cutoff frequency allows an extremely flat frequency response in the bandwidth of interest and a small phase error The...

Page 10: ...digital filter The filter can not reject components that lie close to integer multiples of the oversampling rate because it can not differentiate these components from components between 0 Hz and the...

Page 11: ...f the signal in its digital range when the signal is clipping The result of clipping is also a sudden change in the signal slope and results in corrupt digital data with high frequency energy This ene...

Page 12: ...MANUAL Image 6 Spectral noise 50 termination 8 averages 16k lines 50kS s Image 7 Spectral noise 50 termination 10 averages 16k lines 100kS s Image 8 Spectral noise 50 termination 10 averages 16k lines...

Page 13: ...the allowable common mode input voltages for various input voltages and measurement ranges Image 9 Common mode input voltages Example Many signal sources function generators and power supplies are fl...

Page 14: ...ated event counting also period time pulse width two edge separation frequency and all encoder measurements are supported All counter inputs can also be used as digital inputs In addition to the basic...

Page 15: ...DEWE 43A TECHNICAL REFERENCE MANUAL 4 Device operation Image 11 Top side connectors Image 12 Side connectors DEWE 43A V20 2 15 38...

Page 16: ...ription 1 EXC 2 IN 3 Sense 4 AGND 5 12V 6 Sense 7 IN 8 EXC 9 TEDS Image 13 Analog input connector 9 pin D SUB female 4 1 2 CAN connector Pin Description 1 5V 2 CAN_LOW 3 DGND 4 RES 5 RES 6 DGND 7 CAN_...

Page 17: ...rrent 100mA 6 12V 12V supply max current 10mA 7 GND Ground Image 15 Mating cable connector FGG 1B 307CLAD52 4 1 4 Power supply Mating cable connector FGJ 1B 302CLLD42Z Image 16 LEMO EGJ 1B 302 CLA 4 1...

Page 18: ...PPS synchronization is used the PPS signal is on pin 3 When Clock Trigger synchronization is used the signal is on pin 1 2 4 2 Typical sensor connection For correct measurements it is highly recommen...

Page 19: ...tion Important If sensors or other signal sources with isolated external power supply are used ground signals of DEWE 43A and external power supply should be connected over connector GND wire or over...

Page 20: ...DEWE 43A TECHNICAL REFERENCE MANUAL 4 2 1 Bridge sensor connection Full bridge 10V excitation Image 20 Full bridge mode Half bridge 10V excitation Image 21 Half bridge mode DEWE 43A V20 2 20 38...

Page 21: ...mage 22 Quarter bridge mode Full bridge 5V excitation The excitation level between EXC and EXC is 10 V If lower excitation 5V is needed please connect the GND pin instead of EXC to negative sensor sup...

Page 22: ...DEWE 43A TECHNICAL REFERENCE MANUAL Dewesoft bridge completion adapters Image 24 Bridge completion Adapter Image 25 Bridge completion Adapter DEWE 43A V20 2 22 38...

Page 23: ...wesoftX If you already have DewesoftX installed please check if a newer version is already available You can either check on the website under Support Downloads DewesoftX section or directly in softwa...

Page 24: ...the rear side of the DEWE 43A system see connector named USB in Image 28 Finally connect the other side of the USB cable to the USB port of your computer Image 28 Simple PC connection 6 2 DewesoftX S...

Page 25: ...mber Firmware version etc Image 30 DewesoftX settings Device 6 2 1 Start up of the device When DewesoftX has started up you will be in the Measure mode and see the Setup files list or you can create a...

Page 26: ...highlighted The sampling rate will be set for all connected DEWE 43A devices of course only up to the max sampling rate of the individual slices 6 3 Simple measurement This chapter describes measureme...

Page 27: ...umn of channel 2 1 hold the mouse button and move the mouse down to channel 6 2 then release the mouse button and all channels will be selected this is shown by the black rectangle around the buttons...

Page 28: ...l in a time domain with a good time resolution you should sample 10 to 20 times faster than the frequency of the signal that you want to measure e g 1 kS s for a 50 Hz sine wave If you have a lot of h...

Page 29: ...which are depending on the selected measurement screen In this case we see a simple recorder widget where data is presented in time domain You can use the channel selector list 2 to assign measuremen...

Page 30: ...ere is a Signal overview window which will show you the whole data of one selected channel of the data file 3 there are additional cursors Yellow and two white cursors Now you can use the cursors to a...

Page 31: ...installation e g D DewesoftX System X3 Firmwares Connect the Dewesoft instrument to the PC and run DewesoftX Go to settings under the Update tab Image 38 Firmware upgrade screen If the firmware packag...

Page 32: ...DewesoftX s user manual Under the Create new license section you will find an open field 2 in which you can enter your license number Please make sure that all devices to which the license is valid a...

Page 33: ...needs to be calibrated at regular intervals The standard norm across nearly every industry is annual calibration Before your Dewesoft data acquisition system is delivered it is calibrated Detailed cal...

Page 34: ...owners 9 7 Trademarks We take pride in our products and we take care that all key products and technologies are registered as trademarks all over the world The Dewesoft name is a registered trademark...

Page 35: ...gn manufacture and intended use of the product Dewesoft GmbH assumes no liability for the customer s failure to comply with these requirements All accessories shown in this document are available as a...

Page 36: ...ed in the manuals of all other components regarding warning and security advice for using the system With this product only use the power cable delivered or defined for the host country DO NOT connect...

Page 37: ...used The use of patched fuses is prohibited Prevent using metal bare wires Risk of short circuit and fire hazard DO NOT use the system before during or shortly after a thunderstorm risk of lightning...

Page 38: ...defined in IEC 61508 with SIL 1 3 The electromagnetic environments encompassed by this product family standard are industrial both indoor and outdoor as described for industrial locations in IEC 61000...

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