DI-155 USB Data Acquisition Starter Kit
Contents
1. 1 Features 1 Analog Inputs 1 Digital Inputs 1 Digital Outputs 1 Software 1 WinDaq Recording and Playback Software 2 The DATAQ Instruments Hardware Manager 2 Help 2 2 Specifications 3 3 Installation2. 7 Installing WinDaq Software and the DATAQ Instruments Hardware Manager 7 Connecting the Instrument to Your Computer 8 DATAQ Instruments Hardware Manager 8 4 Controls Indicators and Connections 9 Mini B USB Connection 9 Connecting Input Signals 9 DI 155 Signal Connections 9 Connect Analog Input Channel 1 10 Connecting Signal Leads 10 Gain Settings 11 Digital Inputs
3. 12 WinDaq Remote Events Evnt DI0 13 WinDaq Remote Storage Rcrd DI1 15 WinDaq Rate Rate DI2 15 WinDaq Counter Cnt DI3 17 General Purpose Digital Inputs 19 4 20mA Current Loop Measurements 20 LED Indicators 21 5 DI 155 Block Diagram 23 6 Dimensional Drawing 25 DI 155 Hardware Manual Introduction 1 1 Introduction This manual contains information designed to familiarize you with the features and functions of the DI 155 USB data acquisition starter kit These high end Starter
4. OS support Check online at http www dataq com products windaq windows compatability Sample Rate Limit 240 Hz with optional Unlock Code 10kHz Programming DATAQ SDK Instrument Protocol DLL and Active X DI 155 Hardware Manual Installation 7 3 Installation The following items are included with each WINDAQ Starter Kit Verify that you have the following A DI 155 USB data acquisition instrument USB cable A DATAQ Instruments screwdriver for signal lead connections If an item is missing or damaged call DATAQ Instruments at 330 668 1444 We will guide you through the appropri ate steps for replacing missing or damaged items Save the original packing material in the unlikely event that your unit must for any reason be sent back to DATAQ Instruments Installing WINDAQ Software and the DATAQ Instruments Hardware Manager All software for the DI 155 can be installed via a downloadable executable directly from the DATAQ Instruments web site No CD is shipped with the device You may burn the executable onto a CD to transport the software to a computer with no internet connection 1 Disconnect all DATAQ Instruments USB devices from your Computer 2 Go to run dataq com in your web browser 3 You must subscribe to our newsletter in order to get the software download link you can opt out after down load 4 Save the file to your local hard drive 5 Double click on the downloaded file t
5. 3 2 Specifications Analog Inputs Number of Channels 4 Channel Configuration Differential Programmable measurement ranges per channel 2 50 3 125 5 6 25 10 12 50 25 50 VFS Input impedance 2 M differential Isolation none Absolute Accuracy 25 C excluding common mode error 10 VFS Range 0 20 of FS All Other Ranges 0 50 of FSR Absolute maximum input without damage 75 V peak continuous 150 V peak one minute or less Maximum common mode voltage 20 V peak Minimum common mode rejection 40 db DC Channel to channel crosstalk rejection 72 db minimum any throughput Digital Inputs Number of Channels 4 2 shared with counter rate inputs Pull up value 47 K Isolation none Input high voltage threshold 1 8 V minimum Input low voltage threshold 1 4 V maximum Absolute maximum values 30 VDC Reserved Inputs Digital Inputs Digital In 0 WINDAQ remote start stop Digital In 1 WINDAQ remote events ADC Characteristics Resolution Overall approx 1 part in 8 192 13 bit Above zero approx 1 part in 4 095 Below zero approx 1 part in 4 096 Max sample throughput rate 10 kHz Max sample rate for a single channel 10 kHz Min sample throughput rate Hardware only 11 44 Hz with WinDaq Software 0 000350 Hz Sample rate timing accuracy 50 ppm Counter Rate DI2 and DI3 Number of Channels 2 shared with digital inputs Port
6. the waveform screen Measurement Range Gain Setting 50V Full Scale 1 25V Full Scale 2 12 5V Full Scale 4 10V Full Scale 5 6 25V Full Scale 8 5V Full Scale 10 3 125V Full Scale 16 2 5V Full Scale 20 DI 155 Hardware Manual Controls Indicators and Connections 12 2 Open the Channel Settings dialog box Select Edit gt Channel Settings in the menu or press F10 3 Select the desired gain setting for that channel 4 Click the Next button to access channel settings for the next channel or click the OK button to close the dialog box Digital Inputs The DI 155 contains 4 general purpose digital inputs that can also be used for specific WINDAQ functions Evnt DI0 is for WINDAQ Remote Events This bit inserts an event marker in your data channel 9 must be enabled Rcrd DI1 is for WINDAQ Remote Storage This bit can be programmed to begin recording data channel 9 must be enabled Rate DI2 is for WINDAQ Rate measurements Cnt DI3 is for WINDAQ Counter Timer measurements DI 155 Hardware Manual Controls Indicators and Connections 13 Valid remote record and event signals are switch closures or discrete levels with a maximum input of 30 V and a threshold of 1 8 V WINDAQ Remote Events Evnt DI0 To use a switch closure or TTL signal to record WINDAQ Event Markers connect signal leads to the appropriate Remote Control Event terminals on the DI 155 as shown below Once the swit
7. to record at a maximum throughput rate of 10kHz WINDAQ Waveform Browser playback software also known as WWB offers an easy way to review and analyze acquired waveforms A built in data file translator allows the user to display multiple waveforms acquired by WINDAQ Acquisition software or any of a wide range of data acquisition packages The software s disk streaming design allows data files of any length to be graphically displayed rapidly in normal or reverse time directions Seven standard cursor based measurements frequency domain and statistical analysis functions help simplify waveform analysis and interpretation WINDAQ Waveform Browser is free and installed when installing WINDAQ Software The DATAQ Instruments Hardware Manager This software can be found in the Start menu under the WINDAQ program group called DATAQ Instruments Hard ware Manager Access WINDAQ Acquisition software and manage multiple DATAQ Instruments devices in this easy to use point and click environment View the Help files by clicking on View Help in the Help menu or by press ing F1 Help All WINDAQ software utilizes context sensitive help Help may be accessed through the Help menu or by pressing the F1 key with any pull down menu item selected This will take you directly to the Help topic most relevant to that par ticular function or feature Help topics discuss in detail each function available in the software DI 155 Hardware Manual Specifications
8. Assignment Rate DI2 Counter DI3 DI 155 Hardware Manual Specifications 4 Pull up value 47 K Isolation none Input high voltage threshold 1 8 V minimum Input low voltage threshold 1 4 V maximum Absolute maximum values 30 VDC Terminal count 16 384 14 bit Maximum Rate Frequency The lesser of 10 kHz or 2 total burst rate Minimum Rate Frequency 0 75 Hz Maximum Count Frequency The lesser of 5 kHz or 0 50 total burst rate assumes 50 duty cycle square wave Rate averaging none Digital Outputs Number of Channels 4 Isolation none Absolute max ratings Voltage 30 VDC or peak AC Sink current 0 5 A Source current 3 mA On resistance lt 2 Indicators and Connections Interface USB 2 0 mini B style connector Indicators LED Power Active Remote Input Connections Two 16 position terminal strip Power Power Consumption lt 1 0 Watt via USB interface Environmental Operating Temperature 0 C to 35 C 32 F to 95 F Operating Humidity 0 to 90 non condensing Storage Temperature 20 C to 45 C 4 F to 113 F Storage Humidity 0 to 90 non condensing Physical Characteristics Enclosure Hardened Plastic Mounting Desktop bulkhead Dimensions 2 625D 5 5W 1 53H in 6 67D 13 97W 3 89H cm Weight lt 4 oz lt 140 grams DI 155 Hardware Manual Specifications 5 Software Support WINDAQ software
9. Dimensional Drawing 25 6 Dimensional Drawing 1 612 5 500 4 750 4 250 0 750 2 625 DATAQ Instruments Inc 241 Springside Drive Akron Ohio 44333 Telephone 330 668 1444 Fax 330 666 5434 Submit a support ticket to www dataq com ticket Direct Product Links click on text to jump to page Data Acquisition Data Logger
10. Options gt Remote Events An example event marker in a WINDAQ data file is shown below Please Note Event Markers do not display in the real time WINDAQ acquisition software they only display in the WINDAQ playback software WWB Ch3 DO1 DO0 DO2 DO3 Power Remote Active Rate DI2 Cnt DI3 Model DI 155 Digital Inputs 30 V max Analog Inputs 50 VFS 150 V max Rcrd DI1 Evnt DI0 Analog Inputs 50 VFS 150 V max Digital Outputs 30 VDC max Data Acquisition Starter Kit Download software at dataq com 155 Ch1 Ch2 Ch4 No Connection www dataq com DI 155 Hardware Manual Controls Indicators and Connections 15 WINDAQ Remote Storage Rcrd DI1 To use a switch closure or TTL signal to begin recording data remotely connect signal leads to the appropriate Remote Control Record terminals on the DI 155 as shown below Once the switch closure or TTL signal is connected activate Remote Storage Record through WINDAQ Acquisition Software Storage to Disk may be automatically placed on the rising or falling edge of the trigger signal Enable the digital input channel channel 9 then use the menu command Options gt Remote Storage 1 to set WINDAQ to begin recording on low to high transitions of the Record input Use the menu command Options gt Remote Storage 0 to set WINDAQ to begin recording on high to low t
11. T h e w a y P C b a s e d i n s t r u m e n t a t i o n s h o u l d b e DI 155 4 Channel USB Data Acquisition Starter Kit User s Manual Manual Revision E Copyright 2014 by DATAQ Instruments Inc The Information contained herein is the exclusive property of DATAQ Instruments Inc except as otherwise indicated and shall not be reproduced transmitted transcribed stored in a retrieval system or translated into any human or computer language in any form or by any means electronic mechanical magnetic optical chemical manual or otherwise without expressed written authorization from the com pany The distribution of this material outside the company may occur only as authorized by the company in writing DATAQ Instruments hardware and software products are not designed to be used in the diagnosis and treatment of humans nor are they to be used as critical components in any life support systems whose failure to perform can rea sonably be expected to cause significant injury to humans DATAQ the DATAQ logo and WINDAQ are registered trademarks of DATAQ Instruments Inc All rights reserved DATAQ Instruments Inc 241 Springside Drive Akron Ohio 44333 U S A Telephone 330 668 1444 Fax 330 666 5434 Designed and manufactured in the United States of America iii Warranty and Service Policy Product Warranty DATAQ Instruments Inc warrants that this hardware will be free from defects in materials and workmanship under
12. ch closure or TTL signal is connected activate Remote Events through WINDAQ Acquisition Software Events may be automatically placed on the rising or falling edge of the trigger signal Enable the digital input channel channel 9 then use the menu command Options gt Remote Events to set WINDAQ to place event markers on low to high transitions of the Event input Use the menu command Options gt Remote Events to set WINDAQ to place event markers on high to low transitions of the Event input Please Note The digital input channel channel 9 must be enabled see General Purpose Digital Inputs on page 19 to use Remote Events Switch Closure TTL 0V 30V Max 1 8V Threshold Signal Signal Ch3 DO1 DO0 DO2 DO3 Power Remote Active Rate DI2 Cnt DI3 Model DI 155 Digital Inputs 30 V max Analog Inputs 50 VFS 150 V max Rcrd DI1 Evnt DI0 Analog Inputs 50 VFS 150 V max Digital Outputs 30 VDC max Data Acquisition Starter Kit Download software at dataq com 155 Ch1 Ch2 Ch4 No Connection www dataq com DI 155 Hardware Manual Controls Indicators and Connections 14 Event markers may also be placed in your data file manually by pressing the push button on the DI 155 Instrument You must enable Remote Events in WINDAQ to use the button use the menu command Options gt Remote Events or
13. he maximum rate which is defined as 2 times the Maximum Sample Rate Channel the cur rent values of Maximum Sample Rate Channel divided by Sample Rate per Channel MUST be an integer WINDAQ Counter Cnt DI3 Enable channel 11 to record Counts or the number of falling edge transitions that are applied to this input The count may be reset via WINDAQ software or under program control as necessary Click on Edit gt Channels in the WINDAQ DI 155 Hardware Manual Controls Indicators and Connections 18 Acquisition menu to open the Channel Selection grid Channel 11 is the designated Count channel Click on the Channel 11 channel box to enable disable Counts The Channel 11 channel box will display a C when enabled The counter channel accumulates counts over time whether recording or in standby mode as soon as the Counter channel is enabled The accumulated values will be recorded to your data file unless you reset the counts to zero The maximum count value is 16383 before the counter resets to zero automatically Use the Edit gt Reset Count command in WINDAQ Acquisition software to reset counts immediately to zero This feature is available in both standby and record modes Use the Edit gt Preferences gt Reset Count on New File Record in WINDAQ Acquisition software to reset the count at the start of a new file or when using the Edit gt Preferences gt Record Next File on Full or Open Next File on Full fea ture to reset counts t
14. kits contain features and functionality normally reserved for more expensive data acquisition systems Features The DI 155 data acquisition instrument is a portable data recording module that communicates through your com puter s USB port Power is derived from the interface port so no external power is required Features include 4 fixed differential analog inputs protected to 150V transient 8 programmable gain ranges per channel 2 50 3 125 5 6 25 10 12 50 25 50 VFS 4 digital inputs protected to 30V Two dedicated for WINDAQ remote control operations One dedicated to WINDAQ rate measurements and One dedicated to WINDAQ counter measurements 50V full scale measurement range Up to 10 kHz maximum sampling rate requires WINDAQ High Speed Unlock Code A push button to tag remote events in WINDAQ software Four dedicated digital output ports for use via a programming language or with 3rd party plug ins Three status LEDs for easy notification of system status Analog Inputs The DI 155 features four differential channel inputs located on two sixteen position screw terminal blocks for easy connection and operation other terminals used for digital I O Each channel can be programmed to acquire data at one of 8 different gain ranges 2 50 3 125 5 6 25 10 12 50 25 50 VFS Utilize the functionality of WINDAQ software to experience all the features encased in these sma
15. ll inexpensive instruments Digital Inputs The DI 155 contains four digital lines bits for WINDAQ remote control operations Remote Start Stop and Remote Events frequency measurements and counts Connect switch closures or discrete levels with a maximum input of 30V and a threshold of 1 8V The inputs float at 1 level about 3 3V relative to the terminal and require sinking about 50uA to bring them down to 0 8V and guarantee a 0 Digital Outputs The DI 155 contains four general purpose digital output lines 30 VDC or peak AC 500 mA max for use with third party applications or from a programming language WINDAQ does not support these digital outputs Software All software required to record and playback waveforms is included with the purchase of any DI 155 data acquisition starter kit via download DI 155 Hardware Manual Introduction 2 WINDAQ Recording and Playback Software WINDAQ Acquisition and WINDAQ Waveform Browser allow you to record and playback data acquired through your instrument WINDAQ software is an invaluable resource to record and analyze your data and is available for free from our web site www dataq com WINDAQ Data Acquisition software free can be used to record waveforms directly and continuously to disk while monitoring a real time display of the waveforms on screen It operates displays and records waveform signals in real time at 240Hz maximum throughput Purchase the optional Unlock Code
16. normal use and service for a period of 90 days from the date of shipment DATAQ Instruments obligations under this warranty shall not arise until the defective material is shipped freight prepaid to DATAQ Instruments The only responsibility of DATAQ Instruments under this warranty is to repair or replace at its discretion and on a free of charge basis the defective material This warranty does not extend to products that have been repaired or altered by persons other than DATAQ Instru ments employees or products that have been subjected to misuse neglect improper installation or accident DATAQ Instruments shall have no liability for incidental or consequential damages of any kind arising out of the sale installation or use of its products Service Policy 1 All products returned to DATAQ Instruments for service regardless of warranty status must be on a freight pre paid basis 2 DATAQ Instruments will repair or replace any defective product within 5 days of its receipt 3 For in warranty repairs DATAQ Instruments will return repaired items to the buyer freight prepaid Out of war ranty repairs will be returned with freight prepaid and added to the service invoice DI 155 Hardware Manual Table of Contents v Table of Contents Warranty and Service Policy iii 1 Introduction
17. nput Channel 1 Use the following diagram to connect Analog Input Channel 1 Connecting Signal Leads To connect signal leads to the DI 155 1 Insert the stripped end of a signal lead into the desired terminal directly under the screw 2 Tighten the pressure flap by rotating the screw clockwise with a small screwdriver Make sure that the pressure flap tightens only against the signal wire and not the wire insulation Do not over tighten Signal Signal Ch3 DO1 DO0 DO2 DO3 Power Remote Active Rate DI2 Cnt DI3 Model DI 155 Digital Inputs 30 V max Analog Inputs 50 VFS 150 V max Rcrd DI1 Evnt DI0 Analog Inputs 50 VFS 150 V max Digital Outputs 30 VDC max Data Acquisition Starter Kit Download software at dataq com 155 Ch1 Ch2 Ch4 No Connection www dataq com DI 155 Hardware Manual Controls Indicators and Connections 11 3 Tug gently on the signal lead to ensure that it is firmly secured When an input signal is connected and WINDAQ Acquisition software is run WINDAQ s real time display immedi ately reveals the input waveform on your computer s monitor Gain Settings Each analog input channel on the DI 155 may be programmed for one of 8 gain ranges Change the gain setting for each channel individually 1 Select the channel click on the channel box in the left hand side of
18. o extract the program and begin software installation 6 Follow the on screen prompts and enter any required information DI 155 Hardware Manual Installation 8 7 Software installation is complete you will now see a Successful Installation box click OK to exit WINDAQ Installation You can now plug the device s into your PC Click on the appropriate program group specified above default is Start gt Programs gt WINDAQ and click on DATAQ Instruments Hardware Manager to access WINDAQ software Connecting the Instrument to Your Computer DI 155 instruments can be connected to your computer s USB port using the provided USB cable No external power is required Connect one end of the communications cable to the instrument port and the other to your PC s port Note Use a powered USB hub or a USB port on your PC Non powered USB hubs may not have sufficient power to run the instrument DATAQ Instruments Hardware Manager The DATAQ Instruments Hardware Manager is installed when installing any DI 155 instrument This software allows you to effectively manage multiple devices installed on the same PC The DATAQ Instruments Hardware Manager may be accessed through the Windows Program Manager Group as specified during installation default is Start gt Programs gt WINDAQ gt DATAQ Instruments Hardware Manager All available devices will automatically appear in the list box when you run the software The Hardwa
19. o zero every time a new file is started Use the Edit gt Preferences gt Reset Count on Manual Record in WINDAQ Acquisition software to reset counts to zero every time you begin or resume recording a data file using the File gt Record command F4 DI 155 Hardware Manual Controls Indicators and Connections 19 Connect any TTL pulse stream 30 VDC max to the Cnt DI3 channel on the DI 155 General Purpose Digital Inputs Enable Channel 9 for general purpose digital input functions Click on Edit gt Channels in the WINDAQ Acquisition menu to open the Channel Selection grid Channel 9 is the designated Digital Input channel Click on the Channel 9 channel box to enable disable the digital inputs The Channel 9 channel box will display an I when enabled Signal Signal Ch3 DO1 DO0 DO2 DO3 Power Remote Active Rate DI2 Cnt DI3 Model DI 155 Digital Inputs 30 V max Analog Inputs 50 VFS 150 V max Rcrd DI1 Evnt DI0 Analog Inputs 50 VFS 150 V max Digital Outputs 30 VDC max Data Acquisition Starter Kit Download software at dataq com 155 Ch1 Ch2 Ch4 No Connection www dataq com DI 155 Hardware Manual Controls Indicators and Connections 20 Channel 9 records and displays all the digital inputs even the state of the Rate and Count inputs if those channels are enabled With Channel 9
20. onnection Use the supplied USB cable to connect and power the instrument through your computer s USB port Connecting Input Signals All input signal connections are made to the 16 port screw terminals Each terminal is labeled directly on the instru ment case DI 155 Signal Connections Refer to the following for screw terminal port identification Analog Inputs Ch Analog channels 1 4 50VFS 150V transient max Ch3 DO1 DO0 DO2 DO3 Power Remote Active Rate DI2 Cnt DI3 Model DI 155 Digital Inputs 30 V max Analog Inputs 50 VFS 150 V max Rcrd DI1 Evnt DI0 Analog Inputs 50 VFS 150 V max Digital Outputs 30 VDC max Data Acquisition Starter Kit Download software at dataq com 155 Ch1 Ch2 Ch4 No Connection www dataq com DI 155 Hardware Manual Controls Indicators and Connections 10 Digital Inputs General purpose digital inputs bits 0 3 Can also be used for specific WINDAQ functions 30 Vmax Digital Input bit 0 Evnt DI0 WINDAQ Remote Event Marker Digital Input bit 1 Rcrd DI1 WINDAQ Remote Start Stop Digital Input bit 2 Rate DI2 WINDAQ Rate Input Digital Input bit 3 Cnt DI3 WINDAQ Counter Input Digital Outputs DO General purpose digital outputs bits 0 3 for use in 3rd party programs 30 VDC max No Connection No connection Reserved Connect Analog I
21. ransitions of the Record input Please Note The digital input channel channel 9 must be enabled see General Purpose Digital Inputs on page 19 to use Remote Storage WINDAQ Rate Rate DI2 Enable channel 10 to record Rate or the number of falling edge transitions per unit of time that are applied to this input Click on Edit gt Channels in the WINDAQ Acquisition menu to open the Channel Selection grid Channel 10 is Signal Signal Ch3 DO1 DO0 DO2 DO3 Power Remote Active Rate DI2 Cnt DI3 Model DI 155 Digital Inputs 30 V max Analog Inputs 50 VFS 150 V max Rcrd DI1 Evnt DI0 Analog Inputs 50 VFS 150 V max Digital Outputs 30 VDC max Data Acquisition Starter Kit Download software at dataq com 155 Ch1 Ch2 Ch4 No Connection www dataq com DI 155 Hardware Manual Controls Indicators and Connections 16 the designated Rate channel Click on the Channel 10 channel box to enable disable Rates The Channel 10 channel box will display an R when enabled Connect any TTL pulse stream 30 VDC max to the Rate DI2 channel on the DI 155 Select Channel 10 in the channel display then select Edit gt Channel Settings in the menu to specify a full scale range for the Rate channel Ranges of 5 10 20 50 100 200 500 1000 2000 5000 and 10000 Hz are available Choose a range that come
22. re Manager allows you to start WINDAQ Acquisition software select the device and click on the Start Windaq button and must be used when multiple DATAQ Instruments devices are installed It also provides crucial information about your device needed for custom programming Serial and COM Port Please note The description of DI 155 models cannot be modified Click on the Help button for help with the DATAQ Instruments Hardware Manager DI 155 Hardware Manual Controls Indicators and Connections 9 4 Controls Indicators and Connections Analog In Channels 1 and 2 Digital In Channels Power Active and Remote LEDs Event Marker Push Button Mini B USB Connection SD Card Slot not used in DI 155 Bulkhead Mounting Ear Bulkhead Mounting Ear Digital Out Channels Analog In Channels 3 and 4 Ch3 DO1 DO0 DO2 DO3 Power Remote Active Rate DI2 Cnt DI3 Model DI 155 Digital Inputs 30 V max Analog Inputs 50 VFS 150 V max Rcrd DI1 Evnt DI0 Analog Inputs 50 VFS 150 V max Digital Outputs 30 VDC max Data Acquisition Starter Kit Download software at dataq com 155 Ch1 Ch2 Ch4 No Connection www dataq com Please note The SD card slot is not used in the DI 155 Allowing foreign materials to enter the device through the SD card slot may result in damage to the instrument Mini B USB C
23. s closest to your expected full scale rate or frequency For example if you need to measure the output of a flow meter that can measure a maximum flow rate of 100 gallons per minute and the output frequency Signal Signal Ch3 DO1 DO0 DO2 DO3 Power Remote Active Rate DI2 Cnt DI3 Model DI 155 Digital Inputs 30 V max Analog Inputs 50 VFS 150 V max Rcrd DI1 Evnt DI0 Analog Inputs 50 VFS 150 V max Digital Outputs 30 VDC max Data Acquisition Starter Kit Download software at dataq com 155 Ch1 Ch2 Ch4 No Connection www dataq com DI 155 Hardware Manual Controls Indicators and Connections 17 at that rate is 100 Hz you would choose the 100 Hz range setting A range setting of 200 Hz full scale sacrifices half of the instrument s resolution at 200 gallons per minute and a range of 50 Hz allows measurements to only 50 gallons per minute full scale Check the Cycles min box to display and select frequencies reported in cycles per minute instead of cycles per sec ond the measurement interval remains the same Tachometer measurements in units of RPM revolutions per min ute is just one example that benefits from selecting this option For example if the 100 Hz range setting is selected and Cycles min is checked the full scale range is actually 6000 cycles per minute Please Note To measure t
24. selected in the display window click Scaling gt Digital Plot to show a digital display and make the data more meaningful on screen 4 20mA Current Loop Measurements Use the following diagram for 4 20mA current loop measurement connections The shunt resistor should be placed on the low side of the circuit as shown below Shunt Resistor Model R250 4 20 mA current source Ch3 DO1 DO0 DO2 DO3 Power Remote Active Rate DI2 Cnt DI3 Model DI 155 Digital Inputs 30 V max Analog Inputs 50 VFS 150 V max Rcrd DI1 Evnt DI0 Analog Inputs 50 VFS 150 V max Digital Outputs 30 VDC max Data Acquisition Starter Kit Download software at dataq com 155 Ch1 Ch2 Ch4 No Connection www dataq com Shunt Resistor I 4 20mA Current Loop Transmitter Loop Power Supply To DI 155 Analog Input Channel DI 155 Hardware Manual Controls Indicators and Connections 21 Set the engineering units as desired and define upper lower levels in WINDAQ as 1V 4mA for the low value and 5V 20mA for the high value For example when using WINDAQ Acquisition software in the EU Settings dialog box Enter the following values You can also associate these values to a physical measurement such as pressure load flow torque etc Read the Help files for more information regarding Engineering Units Se
25. ttings LED Indicators The DI 155 provides three green LEDs for instrument status and notification Power Indicates power is applied via the USB cable Active Indicates the device is in use either by WINDAQ Acquisition Software or a custom user developed program Remote Indicates when the Event Button is pushed or the Event terminals are connected via a relay contact or digital input Volt EU EU Tag Upper Level 5 20 mA Lower Level 1 4 DI 155 Hardware Manual Block Diagram 23 5 DI 155 Block Diagram EEPROM Calibration Model Serial AVR32 CPU ADC USB ATMEL Microcontroller Panel Panel AIN1 Analog In 4 10 20K 1M 20K Vref VBus USB Power Active Remote V Event 10K VBus VBus VReg DIN3 DIN2 DIN1 Digital In 1 Remote Start Stop Digital In Typical 4 places 47K VBias Vref 47K V DIN0 Remote Events 4 7K Digital In 3 Counts Digital In 2 Rate General Purpose I O C T 1 C T 0 SPI Control PGA ADC Mux 10 Load ILoad Digital Outputs Typical 4 places Absolute Maximum Ratings VDO0 to Common 30 V ILoad sink 0 5 A ILoad source 0 3 mA Required for Inductive Loads such as a relay DOUT0 Common 4 7K 10 20K 1M Analog In Typical 4 places 20K Vref No Connection 1500pF 0 1F 1500pF 0 1F VRef 3 33V DI 155 Hardware Manual
Download Pdf Manuals
Related Search