DI-78B Data Acquisition Backpack
Contents
1. 1 ESAS a E s 1 Unpacking iia iii 1 AS A OO 3 Signal CONNECT A ta 3 NON 3 SA NO 3 Common DI 8B Module Specifications oooconocnoconocononcnoncnnncno nono conan onncnnn crac cnn n crono nc cnn can rnn ener 3 3 Getting AR OO 5 Connecting the DI 78B to the Host Instrument essere nre en rennen 5 Applying Power to the DI 78B enn ete det ee et Et ee e Rete etie d pete esee o 5 Features Controls and Indicators eese eene eene enne en nennen ene ne nennen nn nccnacanos 6 DIE 78B Eront Panel ene Ote ete ae acide etae redet 6 DE78B Rear Panel urticaria 7 Installing DSB Modules ii is 8 Enabling CJC for Thermocouple Modules eese enne nennen 9 Configuring Channels in WinDaq esses eene nena cra non rennen enne entente 10 DIE 720 Host Instruments 5 p e teinte t Er IR en en ang 10 DI 7 30 Host Instruments Seen eh anna ce e a e de ea dai etae 11 Configuring Channel Gain you MUST configure gain for proper readings 11 4 Block UBI TIE T E 13 5 DI 8B nn A M soo 15 DI 8B30 31 Analog Voltage Input Modules 3Hz Bandwidth see 15 DI 8B32 Analog Current Input Modules eese rennen enin nennen nenne 16 DI 8B34 Linearized 2 or 3 Wire RTD Input Modules eee 17 DI 8B35 Linear2. Channels DI 720 HUXA These are the still available on the signal conditioned ost DI 720 instrument input channels on the DI 78B Click to select check or deselect Double click to select differential Click right to select digital input I MUX letters occupy the expansion inputs OK Cancel Typical channel selection grid showing a DI 78B with a host DI 720 All channels on both the DI 720 and the DI 78B are enabled on the top row of the Channel Selection grid The shaded areas show the channels that are still available on the host DI 720 instrument when the DI 78B is added These channels can be enabled as single ended or differential the same as before the DI 78B was added Channels 17 through 32 channels 1 through 16 on the DI 78B are defined by DI 8B modules and are enabled by clicking once with the left mouse button Note that if a DI 8B module is not plugged into a slot on the DI 78B then that channel is available on the host DI 720 instrument Getting Started 10 DI 78B Hardware Manual DI 730 Host Instruments Channel Selection Channels DI 730 MUX A These channels ug These ar are the are still available signal conditioned lon the host DI 730 input channels on instrument the DI 78B Click to select check or deselect Double click to select differential Click right to select digital input I MUX letters occupy the expansion inputs OK Cancel Typical channel s
3. DI 78B Hardware Manual 3 Plug the appropriate end of the power cord to a 120V source wall outlet D 3 Bibarac DI 78B rae 0 ZELTE a En IE Common E LL eis A Q 2 SQ 66 A POWER SEAS E Q er 4910 DI 720 or DI 730 amp roca poe n A o R PORT O o esama EN hh 8 e j POWER 1 To Power Adaptor Dual Ended Power Cable Features Controls and Indicators The DI 78 front panel contains four removable sixteen position screw terminal blocks for quick and easy connection of all analog in signal leads The rear panel provides connections for power and expansion in DI 78B Front Panel The four 16 port screw terminals on the front of the DI 78B are used to interface analog input channels 1 through 16 channels 17 through 32 of the host DI 720 or DI 730 instrument Each channel has four terminals In In Ex and Ex for input signals and excitation if required Use the sticker located on the top of your instrument for quick reference to terminal access port designations DI 78B Front Panel DAP SSODSQDDGSODGS OBOSSODOEODDOBOESODDS oDoooocoooeocooecooos joDoooocoooeocooecooos In In In In In In In In In In In In In In In In In In In In In In In In In In In In In In In In o nojo ojo oo 0 o ojo ojo ojo o 0 ojo ojo ojo ojo oo vov ojo v 06 0 10 OjO 0 0 0 0 OjO vo 0 0 0 0 0 10 OJO OjO 0 0 0 0 OO OJO 0 IEXxEx Ex Ex4Ex bEx Ex
4. CH13 CH14 CH15 CH16 In In In In In In In In In In In In In In In In In In In In In In In In In In In In In In In In 60 0 0 OjO OO OO OO OjO OjO 0 06 010 010 0 0 OO OJO OJO OJO o 0 010 0 0 OO ojo o o o o eo 0 010 010 0 0 O O OJO OJO OJO o EX Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex2 ExX Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex HEx Ex Ex ExX Ex Modules Installed V 1010588 j Write Installed Modules in the spaces provided with an erasable pencil Getting Started 8 DI 78B Hardware Manual 5 After all modules are installed and indicated on the sticker reassemble the instrument Note If your are installing a thermocouple module you must enable the Cold Junction Compensation jumper for that channel see Enabling CJC for Thermocouple Modules below Enabling CJC for Thermocouple Modules If you are installing a Thermocouple Input Module see DI 8B47 Linearized Thermocouple Input Modules on page 25 you must enable the Cold Junction Compensation jumper Each channel has its own CJC enable jumper located towards the front of the instrument on the instrument circuit board see also Installing DI 8B Modules on page 8 for disassembly Tip Install all unused jumpers onto one pin of each channel so they cannot be accidentally misplaced 1 Unplug the device and make sure there is no power to the instrument 2 Unscrew the six screws on the top of the instrument and remove the top ha
5. Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex Ex ExEx Ex Ex Ex Ex Ex Getting Started 6 DI 78B Hardware Manual DI 78B Rear Panel Power LED Power Switch BgjDATAG INSTRUMENTS 00000000000000000000 00000000000000000000 EXPANSION IN EXPANSION IN Power Connectors EXPANSION IN connector Connects the DI 78B to the host instrument Use the following diagram for pinout 39 37 35 33 31 29 27 25 23 21 19 17 15 13 11 9 7 5 3 1 40 38 36 34 32 30 28 26 24 22 20 18 16 14 1210 8 6 4 2 Pin Description 18 Analog Ground 21 Channel 16 22 Channel8 23 Channel 15 24 Channel 7 25 Channel 14 26 Channel 6 27 Channel 13 All other pins have no connection 28 Channel 5 29 Channel 12 30 Channel 4 31 Channel 11 32 Channel 3 33 Channel 10 34 Channel 2 35 Channel 9 36 Channel 1 Power LED Glows green when power is applied Power Connectors Input jacks to provide power to the instrument Allows you to apply an alternate power source to the instrument if necessary Power may be applied to the host instrument using the provided dual ended power cable See Applying Power to the DI 78B on page 5 Output capacity of the power supply is 2 5A Power Connectors Pinout LEN XN V Common Power switch Controls power to the DI 78B 1 position is on O is off Getting Started 7 DI 78B Hardware Manual Installing DI 8B Modul
6. VDC or peak AC max Temperature Accuracy TC modules 0 5 of Full Scale Range 2 C General Dimensions 7 29W x 9L x 1 52H inches 18 52W x 22 86L x 3 86H cm Operating Temperature 0 to 70 C Power Consumption 1 2 watts plus DI 8B module Power Requirements 9 36 VDC Common DI 8B Module Specifications Input Protection 240VAC Common Mode Rejection 160db Size 1 105W x 1 65L x 0 40H 2 81W x 4 19L x 1 02H cm Not all DI 8B amplifier modules support excitation but all support channel inputs Does not include 8B module error Ambient temperature range 20 25 C still air 12 watt max total 8B module power dissipa tion Specifications 3 DI 78B Hardware Manual 3 Getting Started The DI 78B is a sixteen channel 8B module expansion device for DI 720 and DI 730 instruments Each DI 78B accepts up to 16 high performance plug in signal conditioning modules which expand the measurement capability of the host instrument to include virtually any isolated industrial type signal The DI 78B includes all cables required to connect to its host instrument and provide power Each channel consumes one channel from its host instrument s expansion channel inventory in return for the isolated signal conditioned input it provides Signal connections are made to the front of the DI 78B through four removable screw terminal blocks A separate power supply is not required Power may be obtained from the host DI 720 or DI 730 through
7. isolation barrier for anti aliasing and the other two are on the system side A special input circuit on the DI 8B30 and DI 8B31 modules provides protection against accidental connection of power line voltages up to 240VAC Isolation is provided by optical coupling to suppress transmission of common mode spikes or surges The module is powered from 5VDC 5 Isolation Barrier Surge Suppression and Protection Backpanel Terminal Block 1 CJC Enable Jumper 4 5 gt 5VDC Remains Installed for 8830 31 i Isolated 1 v Field Side Oscillator Power 7 i gt COM WV gay Ordering Information MODEL INPUT RANGE OUTPUT RANGE DI 8B30 01 10mV to 10mV 5V to 5V DI 8B30 02 50mV to 50mV 5V to 5V DI 8B30 03 100mV to 100mV 5V to 5V DI 8B31 01 1V to 1V 5V to 5V DI 8B31 02 5V to 5V 5V to 45V DI 8B31 03 10V to 10V 5V to 45V DI 8B31 07 20V to 20V 5V to 45V DI 8B31 09 40V to 40V 5V to 45V DI 8B31 12 60V to 60V 5V to 5V DI 8B Modules 15 DI 78B Hardware Manual DI 8B32 Analog Current Input Modules Each DI 8B32 module isolates filters and amplifies a process current input signal and provides an analog voltage output Current to voltage conversion is accomplished internal to the module to ensure high accuracy Signal filtering is accomplished with a three pole filter optimized for time and frequency response which provide
8. to 30mV 10 0V at 2mV V Sensitivity 5V to 45V DI 8B38 35 3Hz 20mV to 20mV 10 0V at 2mV V Sensitivity 5V to 45V DI 8B Modules 20 DI 78B Hardware Manual DI 8B40 41 Analog Voltage Input Modules 1kHz Bandwidth Each DI 8B40 and DI 8B41 module isolates filters and amplifies a voltage input signal and provides an analog volt age output Signal filtering is accomplished with a multiple pole filter optimized for time and frequency response which provides 70dB of normal mode rejection at 60Hz One pole of this filter is on the field side of the isolation barrier for anti aliasing and the remaining poles are on the system side A special input circuit on the DI 8B40 and DI 8B41 modules provides protection against accidental connection of power line voltages up to 240VAC Clamp Circuits on the I O and power terminals protect against harmful transients Isolation is provided by optical coupling to suppress transmission of common mode spikes or surges The module is powered from 5VDC 5 Isolation Barrier 1 Surge OUT Q Suppression VY and ES COM Protection V V Computer Side Power Backpanel Terminal Block EEE d Isolated V Field Side Power i 1 CJC Enable Jumper Remains Installed for 8B40 41 5VDC Ordering Information MODEL INPUT RANGE OUTPUT RANGE DI 8B40 01 10mV to 10mV 5V to 45V DI 8B40 02 50mV to 5
9. 0mV 5V to 45V DI 8B40 03 100mV to 100mV 5V to 45V DI 8B41 01 IV to IV 5V to 45V DI 8B41 02 5V to 45V 5V to 45V DI 8B41 03 I0V to 10V 5V to 45V DI 8B41 07 20V to 20V 5V to 45V DI 8B41 09 40V to 40V 5V to 45V DI 8B41 12 60V to 60V 5V to 45V DI 8B Modules 21 DI 78B Hardware Manual DI 8B42 2 Wire Transmitter Interface Modules Each DI 8B42 module provides power to a current transmitter then isolates filters and amplifies the resulting pro cess current input signal and provides an analog voltage output Current to voltage conversion is accomplished internal to the module to ensure high accuracy Signal filtering is accomplished with a three pole filter optimized for time and frequency response which provides 60dB per decade of normal mode rejection above 100Hz One pole of this filter is on the field side of the isolation barrier for anti aliasing and the other two are on the system side A special input circuit on the DI 8B42 module provides protection against accidental connection of power line volt ages up to 40VAC Clamp circuits on the I O and power terminals protect against harmful transients Isolation is provided by optical coupling to suppress transmission of common mode spikes or surges The module is powered from 5VDC 5 Isolation Barrier 1 lt Surge OUT 2 Wire D Suppression V 7 i am COM Transmitter Protection V Y Computer Side Power Backpane
10. 33V source Full scale sensitivities of 2m V V and 3mV V are offered as standard Signal filtering is accomplished with a five pole filter optimized for time and frequency response which provides 100dB per decade of normal mode rejection above the filter cutoff frequency One pole of this filter is on the field side of the isolation barrier for anti aliasing and the other four are on the system side A special input circuit on the DI 8B38 module provides protection against accidental connection of power line volt ages up to 240VAC Clamp circuits on the I O and power terminals protect against harmful transients Isolation is provided by optical coupling to suppress transmission of common mode spikes or surges The module is powered from 5VDC 5 Isolation Barrier com 1 Excitation Source 1 2 EXC Qe Jn i EAS Frolectton Q7 Q Backpanel Terminal Block UN Y Computer Side Power 1 CJC Enable Jumper Remove for 8B38 N Isolated Field Side Ordering Information MODEL BANDWIDTH INPUT RANGE EXCITATION OUTPUT RANGE DI 8B38 01 3kHz 10mV to 10mV 3 333V at 3m V V Sensitivity 5V to 5V DI 8B38 02 3kHz 30mV to 30mV 10 0V at 3m V V Sensitivity 5V to 45V DI 8B38 05 3kHz 20mV to 20mV 10 0V at 2mV V Sensitivity 5V to 45V DI 8B38 31 3Hz 10mV to 10mV 3 333V at 3m V V Sensitivity 5V to 45V DI 8B38 32 3Hz 30mV
11. 5 C DI 8B47J 12 Type J 100 C to 760 C 148 F to 1400 F 0 24 2 10 C DI 8B47K 04 Type K 0 C to 1000 C 32 F to 1832 F 0 24 2 40 C DI 8B47K 05 Type K 0 C to 500 C 32 F to 932 F 0 24 1 05 C DI 8B47K 13 Type K 100 C to 1350 C 148 F to 2462 F 0 24 3 60 C DI 8B47K 14 Type K 0 C to 1200 C 32 F to 2192 F 0 24 2 88 C DI 8B47T 06 Type T 100 C to 400 C 32 F to 392 F 0 48 2 40 C DI 8B47T 07 Type T 0 C to 200 C 32 F to 392 F 0 39 0 75 C Includes conformity hysteresis and repeatability Does not include CJC accuracy DI 8B Modules 25 DI 78B Hardware Manual DI 8B50 51 Analog Voltage Input Modules 20kHz Bandwidth Each DI 8B50 and DI 8B51 module isolates filters and amplifies a voltage input signal and provides an analog volt age output Signal filtering is accomplished with a multiple pole filter optimized for time and frequency response which provides 70dB of normal mode rejection at 60Hz One pole of this filter is on the field side of the isolation barrier for anti aliasing and the remaining poles are on the system side A special input circuit on the DI 8B50 and DI 8B51 modules provides protection against accidental connection of power line voltages up to 240VAC Clamp circuits on the I O and power terminals protect against harmful transients Isolation is provided by optical coupling to suppress transmission of common mode spikes or sur
12. RTD Input Modules In RTD temperature measurement applications requiring a very high level of accuracy the DI 8B35 4 Wire RTD input module offers a significant advantage over 3 wire measurement techniques see block diagram The DI 8B35 measures only the voltage dropped across the RTD and almost completely ignores the resistance or length of the RTD lead wires The DI 8B34 3 Wire RTD module provides lead resistance compensation but requires equal lead resis tances while the DI 8B35 does not require matched lead resistances Each DI 8B35 module isolates filters amplifies and linearizes a single channel of temperature input from an RTD and provides an analog voltage output RTD excitation is provided from the module using a precision current source Excitation current does not flow in the input signal leads which allows RTD measurements to be made independent of lead resistance The excitation cur rents are small 0 25mA which minimizes self heating of the RTD Signal filtering is accomplished with a three pole filter optimized for time and frequency response which provides 70dB of normal mode rejection at 60Hz One pole of this filter is on the field side of the isolation barrier for anti aliasing and the other two are on the system side A special input circuit on the DI 8B35 module provides protection against accidental connection of power line volt ages up to 240VAC Clamp circuits on the I O and power terminals protect against harmful
13. cts in materials and workmanship under normal use and service for a period of one year 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 Forin 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 78B Hardware Manual Table of Contents Warranty and Service Policy 45 ccedscscicdsesccoctsssonssesscvsctcsonssesocvissedens tevensdsnsccoatesesasseseesssesecs sesccsssedeosstess iii 1 Tntr ducton T
14. e to industry standard thermocouple type J K and T and has an output signal of OV to 5V Each module is cold junction compensated to correct for parasitic thermocouples formed by the thermocouple wire and screw terminals on the mounting backpanel Upscale open thermocouple detect is provided by an internal pull up resistor Signal filtering is accomplished with a three pole filter optimized for time and frequency response which provides 70dB of normal mode rejection at 60Hz One pole of this filter is on the field side of the isolation barrier for anti aliasing and the other two are on the system side A special input circuit on the DI 8B47 module provides protection against accidental connection of power line volt ages up to 240VAC Note The temperature accuracy of these thermocouple modules when used with the DI 78B is 2 C 25 C Isolation Barrier 6 T gt com Thermocouple Suppression and Protection Backpanel Terminal Block 1 CJC Enable Jumper 2 CJCn is a thermistor mounted on the backpanel and used as a cold junction compensation sense element C 5VDC Isolated Field Side Ordering Information MODEL TYPE INPUT RANGE ACCURACY DI 8B47J 01 Type J 0 C to 760 C 32 F to 1400 F 0 24 1 82 C DIESB47 02 Type 100 C to 300 C 148 Fto 572F 0 24 0 96 C DI 8B47J 03 Type J 0 C to 500 C 32 F to 932 F 0 21 1 0
15. election grid showing a DI 78B with a host DI 730 All channels on both the DI 730 and the DI 78B are enabled on the top row of the Channel Selection grid The shaded areas show the channels that are still available on the host DI 730 instrument when the DI 78B is added Channels 17 through 32 channels 1 through 16 on the DI 78B are defined by DI 8B modules and are enabled by clicking once with the left mouse button The isolated differential inputs on the front panel of the DI 730 are still available Configuring Channel Gain you MUST configure gain for proper readings The signal conditioned or DI 8B module channels on the DI 78B output 5 volts to the host instrument Since the DI 78B connections to the DI 720 Series and DI 730 Series available through the EXPANSION connector host instruments are 10 volt input devices each DI 78B signal conditioned channel in use MUST be set to a gain of 2 so they have a full scale measurement range of 5 volts 1 After you have enabled channels click on Channel Settings in the Edit menu Getting Started 11 DI 78B Hardware Manual This displays the Channel X Settings dialog box where X represents the currently enabled channel currently enabled channel Channel 1 Settings FS Volt FS Volt Acquisition Method Average C Last Point C Maximum C Minimum C RMS C Frequency Input Type Linear C Nonlinear C Thermocouple Unipolar Fahren
16. es DI 78B instruments accept up to 16 signal conditioned analog inputs All DI 8B modules must be installed onto the DI 8B backplane located on the instrument circuit board 1 Unplug the device and make sure there is no power to the instrument 2 Unscrew the six screws on the top of the instrument and remove the top hatch cover to reveal the DI 8B back plane 3 Plug the DI 8B module firmly into one of the channel positions clearly labelled on the backplane and secure with the set screw Note Be sure to completely screw the module into place or vibrations could short the system DI 8B modules are installed on or removed from the socketed DI 8B backplane located on the circuit board and are secured with a non removable mounting screw Each channel position is labeled CHANNEL 1 CHAN NEL 2 etc on the socketed backplane The DI 8B modules can be mixed or matched in any combination suit able for the application and are identical in pinout and size so it doesn t matter which module gets plugged into which channel position Top Hatch 4 Using an erasable pencil write the module number of each DI 8B module installed on the sticker located on the top hatch to indicate which module is installed at each channel position m a BjPATAQ Screw Terminal Access CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10 CH11 CH12
17. ges The module is powered from 5VDC 5 Isolation Barrier Surge Q Suppression Q i and Protection Backpanel Terminal Block 1 CJC Enable Jumper Remains Installed for 8B50 51 5VDC Isolated Field Side DI 8B Modules 26 Power T gt COM Ordering Information MODEL INPUT RANGE OUTPUT RANGE DI 8B50 01 10mV to 10mV 5V to 45V DI 8B50 02 50mV to 50mV 5V to 45V DI 8B50 03 100mV to 100mV 5V to 45V DI 8B51 01 IV to 1V 5V to 45V DI 8B51 02 5V to 45V 5V to 45V DI 8B51 03 I0V to 10V 5V to 45V DI 8B51 07 20V to 20V 5V to 45V DI 8B51 09 40V to 40V 5V to 45V DI 8B51 12 60V to 60V 5V to 45V F DATAQ INSTRUMENTS DATAQ Instruments Inc 241 Springside Drive Akron Ohio 44333 Telephone 330 668 1444 Fax 330 666 5434 E mail support datag com Direct Product Links click on text to jump to page Data Acquisition Data Logger Chart Recorder
18. heit Sample Rate 250 i fi 250 Hz Reset Cal Cancel Next Previous Preview 2 In the upper left corner of the dialog box click the gain factor 2 to get a full scale range of 5 volts 3 Click the Next or Previous command button at the bottom of the dialog box to step to the next or previously enabled channel Note that when either the Next or Previous button is activated the channel number in the title bar of the dialog box changes to indicate the channel you are currently working on 4 Repeat steps 2 and 3 for each DI 78B signal conditioned channel in use 5 Click the OK command button to close the Channel Settings dialog box Getting Started 12 DI 78B Hardware Manual 4 Block Diagram Typical Sixteen Positions DI 8B eoo DI 8B 0 0 DI 8B To DI 720 or DI 730 DHB Ese s EXPANSION Port Ex Terminal c Removable Ex Typical 16 Block Terminal m Socket In Positions In 9 36VDC Accessory Power Power On ne Block Diagram 13 DI 78B Hardware Manual 5 DI 8B Modules DI 8B30 31 Analog Voltage Input Modules 3Hz Bandwidth Each DI 8B30 or DI 8B31 module isolates filters and amplifies a voltage input signal and provides an analog voltage output Signal filtering is accomplished with a three pole filter optimized for time and frequency response which provides 70dB of normal mode rejection at 60Hz One pole of this filter is on the field side of the
19. ized 4 Wire RTD Input Modules eese eee rennen 18 DI 8B36 Potentiometer Input Modules essent enne nennen 19 DI 8B38 Strain Gage Input Modules Narrow amp Wide Bandwidth sss 20 DI 8B40 41 Analog Voltage Input Modules 1kHz Bandwidth eee 21 DI 8B42 2 Wire Transmitter Interface Modules seen 22 DESB43 DC EVDT Input Modules zu Ee dira 23 DI 8B45 Frequency Input Modules esses eene eee ener nennen on acc nen nennen en 24 DI 8B47 Linearized Thermocouple Input Modules eee 25 DI 8B50 51 Analog Voltage Input Modules 20kHz Bandwidth eee 26 Table of Contents V DI 78B Hardware Manual 1 Introduction Congratulations on your purchase of a DI 78B Backpack The DI 78B is an analog in analog out channel expander for DI 720 and DI 730 Series data acquisition systems The DI 78B must be connected properly to a host DI 720 or DI 730 series instrument in order to acquire signals This manual describes how to connect and use the DI 78B with DI 720 and DI 730 Series products as well as DI 8B amplifier modules Features The DI 78B has the following features e Accepts up to 16 DI 8B amplifier modules accommodating virtually any industrial signal e Connects directly to the back panel expansion connector of DI 720 and DI 730 series instruments e Powered through the host DI 720 or DI 730 uni
20. j DATAQ INSTRUMENTS The way PC based instrumentation should be DI 78B 8B Module Channel Expander for DI 720 and DI 730 Series Instruments User s Manual Manual Revision C Copyright O 2012 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 NL J INSTRUMENTS 241 Springside Dr Akron Ohio 44333 U S A Telephone 330 668 1444 Fax 330 666 5434 Designed and manufactured in the United States of America M 100775 Warranty and Service Policy Product Warranty DATAQ Instruments Inc warrants that this hardware will be free from defe
21. l Terminal Block t Optional plug in conversion resistor 1 CJC Enable Jumper ae Isolated Power De Remains Installed for 8B42 Field Side 3 Oscillator Power E VY L Ordering Information MODEL INPUT RANGE OUTPUT RANGE DI 8B42 01 4mA to 20mA OV to 5V DI 8B42 02 4mA to 20mA 1V to 5V DI 8B Modules 22 DI 78B Hardware Manual DI 8B43 DC LVDT Input Modules Each 8B43 module isolates filters and amplifies a voltage input signal and provides an analog voltage output The 8B43 can interface to transducers that will operate on a 10V excitation voltage and up to 20mA of excitation cur rent Signal filtering is accomplished with a 5 pole filter optimized for time and frequency response which provides 100dBper decade of normal mode rejection above 1kHz One pole of this filter is on the field side of the isolation bar rier for anti aliasing and the other four are on the system side A special input circuit on the 8B43 modules provides protection against accidental connection of power line voltages up to 240VAC Clamp circuits on the I O and power terminals protect against harmful transients Isolation is provided by transformer coupling to suppress transmission of common mode spikes or surges The mod ule is powered from 5VDC 5 Isolation Barrier 1 1 1 1 DES 6 gt ll 1 1 1 1 1 gt COM 1 i L EXC 1 Excitation CJCn Source DC LVDT
22. mized for time and frequency response which provides 70dB of normal mode rejection at 60Hz One pole of this filter is on the field side of the isolation barrier for anti aliasing and the other two are on the system side A special input circuit on the DI 8B34 module provides protection against accidental connection of power line volt ages up to 240VAC Clamp circuits on the I O and power terminals protect against harmful transients Isolation Barrier 6 1 N PM TIPPS gt LPF Linearizer Voy Surge 7 Suppression gt gt COM and i Protection i 1 V Y 4 Stimulus i RTD P Current i Computer Side ps Power gt 4 i 7 3 wire a i 2 wire i Backpanel M iaa Terminal Block AMT Isolated Power Field Side Oscillator 1 CJC Enable Jumper Power Remains Installed for 8B34 Ordering Information MODEL INPUT RANGE OUTPUT RANGE ACCURACY DI 8B34 01 100 C to 100 C 148 F to 212 F OV to 45V 0 20 C DI 8B34 02 0 C to 100 C 32 F to 212 F OV to 5V 0 15 C DI 8B34 03 0 C to 200 C 32 F to 392 F OV to 5V 0 20 C DI 8B34 04 0 C to 600 C 32 F to 1112 F OV to 5V 0 45 C Includes conformity hysteresis and repeatability DI 8B Modules 17 DI 78B Hardware Manual DI 8B35 Linearized 4 Wire
23. modules provides protection against accidental connection of power line volt ages up to 240VAC Clamp circuits on the I O and power terminals protect against harmful transients Isolation is provided by optical coupling to suppress transmission of common mode spikes or surges The module is powered from 5VDC 5 Isolation Barrier 1 Excitation 6 Vour H 5 Surge 7 2 Suppression and Protection Backpanel Terminal Block Lao 1 CJC Enable Jumper Remains Installed for 8B45 1 1 N 2 W Isolated NV Field Side 1 gt 5VDC bil zi gt COM Ordering Information MODEL INPUT RANGE OUTPUT RANGE EXCITATION DI 8B45 01 0 to 500Hz 0 to 5V 5V at 8mA max DI 8B45 02 0 to 1kHz 0 to 5V 5V at 8mA max DI 8B45 03 0 to 2 5kHz 0 to 5V 5V at 8mA max DI 8B45 04 0 to 5kHz 0 to 5V 5V at 8mA max DI 8B45 05 0 to 10kHz 0 to 5V 5V at 8mA max DI 8B45 06 0 to 25kHz 0 to 5V 5V at 8mA max DI 8B45 07 0 to 50kHz 0 to 5V 5V at 8mA max DI 8B45 08 0 to 100kHz 0 to 5V 5V at 8mA max DI 8B Modules 24 DI 78B Hardware Manual DI 8B47 Linearized Thermocouple Input Modules Each DI 8B47 module isolates filters amplifies and linearizes a single channel of temperature input from a thermo couple and provides an analog voltage output Linearization is accomplished using a four breakpoint piece wise linear approximation The DI 8B47 can interfac
24. nO 3 Surge Oth Q Suppression i 2 exc 2 and Protection ES Transducer Backpanel Terminal Block 1 CJC Enable Jumper Remains Installed for 8B40 41 av TT gt 5VDC v e qm 1 gt COM Ordering Information MODEL INPUT RANGE OUTPUT RANGE DI 8B43 01 IV to 1V 5 to 5V DI 8B43 02 2V to 2V 5 to 5V DI 8B43 03 3V to 43V 5 to 5V DI 8B43 04 4V to 44V 5 to 5V DI 8B43 05 5V to 45V 5 to 5V DI 8B43 11 IV to 1V 0to 5V DI 8B43 12 2V to 42V 0to 45V DI 8B43 13 3V to 43V 0to 45V DI 8B43 14 4V to 4V 0 to 45V DI 8B43 15 5V to 45V 0to 45V DI 8B Modules 23 DI 78B Hardware Manual DI 8B45 Frequency Input Modules Each DI 8B45 module isolates and conditions a frequency input signal and provides an analog voltage output The frequency input signal can be either a TTL level or zero crossing with as little as 100mV amplitude Input cir cuitry for each signal type has built in hysteresis to prevent spurious noise from corrupting the module output TTL signals are applied to the and terminals while zero crossing signals are applied to the EXC and terminals Ref erence the block diagram A 5V excitation is available for use with magnetic pick up or contact closure type sensors The excitation is available on the EXC terminal with return on the terminal A special input circuit on the DI 8B45
25. s 70dB of normal mode rejection at 60Hz One pole of this filter is on the field side of the isolation barrier for anti aliasing and the other two are on the system side A special input circuit on the 8B32 module provides protection against accidental connection of power line voltages up to 30VAC Isolation is provided by optical coupling to suppress transmission of common mode spikes or surges The module is powered from 5VDC 5 Isolation Barrier Surge Suppression O i and Protection 2 Backpanel Terminal Block I Optional plug in conversion resistor 1 CJC Enable Jumper Isolated Remains Installed for 8B32 nd Fiela Siae V Ordering Information MODEL INPUT RANGE OUTPUT RANGE DI 8B32 01 4mA to 20mA OV to 5V DI 8B32 02 OmA to 20mA OV to 5V DI 8B Modules 16 DI 78B Hardware Manual DI 8B34 Linearized 2 or 3 Wire RTD Input Modules Each DI 8B34 module isolates filters amplifies and linearizes a single channel of temperature input from an RTD and provides an analog voltage output RTD excitation is provided from the module using two matched current sources When using a 3 wire connection this method allows equal currents to flow through the sensor leads cancelling the effects of lead resistances The excitation currents are small 0 25mA which minimizes the self heating of the RTD Signal filtering is accomplished with a three pole filter opti
26. t using the provided power jumper cable e Included stacking brackets allow the DI 78B to be stacked and mounted to the host instrument Only one DI 78B may be used per host instrument Unpacking The following items are included with each instrument Verify that you have the following e DI 78B Instrument e Power jumper cable Expansion connector cable e Screwdriver for connecting signal leads e Sixteen jumpers to enable CJC for thermocouple modules e Four removable sixteen position screw terminal blocks e Stacking brackets 8 screws included e This hardware manual 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 Introduction 1 DI 78B Hardware Manual 2 Specifications Signal Connections Signal connections are made directly to the 4 removable 16 position screw terminal blocks located on the front of the instrument There are 4 screw terminals per channel channel channel excitation and excitation Inputs Configuration Each channel is designed specifically to accept one DI 8B module Number of Channels 16 Measurement Range Defined by the 8B amplifier on a channel by channel basis Input to Output Isolation 1000 VDC or peak AC max Channel to Channel Isolation 500
27. tch cover to reveal the DI 8B back plane and the CJC Enable Jumpers 3 Install a jumper onto the board for each channel that uses a thermocouple module Each jumper is labelled on the circuit board as TC CH where is the channel number Sixteen jumpers are provided with the DI 78B for this purpose CJC Enable Jumpers Circuit Board with DI 8B Backplane o O o oo CHANNEL 1 CHANNEL 2 o o o o 000 o o o o dad dal O O ooo CHANNEL 3 o o o o O o o o CHANNEL 4 Rear CHANNEL 5 ooo o o o o CHANNEL 6 o o o o ooo CHANNEL 7 Casing Front O o o o o O o o o CHANNEL 11 o o o o CHANNEL 12 o o o o ooo CHANNEL 13 o o o o CHANNEL 14 dad dal o o o o ooo CHANNEL 15 o o o o CHANNEL 16 CJC Enable Jumpers Note If you are not using a Thermocouple Input Module on that channel be sure the jumper is disabled removed or installed on only one pin because this will affect the input signal 4 After all necessary jumpers are installed reassemble the instrument Getting Started 9 DI 78B Hardware Manual Configuring Channels in WINDAQ Channels are enabled in the channel selection grid select Channels from the Edit menu in WINDAQ Data Acqui sition software Each box in the grid represents an input channel Click on the desired channel box to enable a chan nel DI 720 Host Instruments Channel Selection
28. the supplied dual ended power cable Connecting the DI 78B to the Host Instrument Note The included expansion signal cable and the dual ended power cable are sized to fit when the DI 78B is stacked on top of or under the host instrument If the instruments are not in a stacked configuration do so before proceeding 1 Connect one end of the included expansion signal cable to EXPANSION on the rear panel of the host instrument 2 Connect the other end of the expansion signal cable to EXPANSION IN on the rear panel of the DI 78B DI 78B D 0 A ae LLL COPE V IE Comm a gt AAA Ping i o Q lo XPANSION IN o 0 09 rower CELL 2 AA ZA Expansion Cable ror O A 0 PRINTER PORT Oo v ACTIVE 0 o Mine DI 720 or DI 730 Applying Power to the DI 78B A separate power supply is not required Power is obtained from the host DI 720 or DI 730 instrument through the dual ended power cable supplied with the DI 78B Modules should be installed before power is applied to the instru ment See Installing DI 8B Modules on page 8 for instructions on installing 8B modules 1 Unplug the five pin DIN end of the power adapter cable that is currently supplying power to your DI 720 or DI 730 and plug it into one of the DI 78B s power jacks 2 Plug one end of the dual ended power cable into the remaining power jack in the DI 78B and plug the other end into the host instrument power jack Getting Started 5
29. transients Isolation Barrier 2 B peN Surge 7 gt com Suppression CJCn and nO 3 Protection EXC 2 o RTD 2 WV Backpanel Terminal Block Isolated Field Side 1 CJC Enable Jumper Remove for 8B35 Ordering Information MODEL INPUT RANGE OUTPUT RANGE ACCURACY DI 8B35 01 100 C to 100 C 148 F to 212 F OV to 5V 0 20 C DI 8B35 02 0 C to 100 C 32 F to 212 F OV to 5V 0 15 C DI 8B35 03 0 C to 200 C 32 F to 392 F OV to 5V 0 20 C DI 8B35 04 0 C to 600 C 32 F to 1112 F OV to 5V 0 45 C Includes conformity hysteresis and repeatability DI 8B Modules 18 DI 78B Hardware Manual DI 8B36 Potentiometer Input Modules Each DI 8B36 module isolates filters and amplifies a single channel of potentiometer input and provides an analog voltage output Excitation for the potentiometer is provided by using two matched current sources When using a 3 wire connection this method allows equal currents to flow through the sensor leads cancelling the effects of lead resistances The excitation currents are small 0 25mA which minimizes the self heating of the potentiometer Signal filtering is accomplished with a three pole filter optimized for time and frequency response which provides 70dB of normal mode rejection at 60H
30. z One pole of this filter is on the field side of the isolation barrier for anti aliasing and the other two are on the system side A special input circuit on the DI 8B36 module provides protection against accidental connection of power line volt ages up to 240VAC Clamp circuits on the I O and power terminals protect against harmful transients Isolation Barrier EXC 1 LPF Surge er Suppression gt 2 wire 3 wire n and Jn Slidewire Potentiometer a 3 Protection EXC EXC 2 Stimulus Current 4 E i Backpanel ic Terminal Block Isolated Field Side 1 CJC Enable Jumper Remains Installed for 8B36 Ordering Information MODEL INPUT RANGE OUTPUT RANGE DI 8B36 01 0 to 1000 OV to 5V DI 8B36 02 0 to 5000 OV to 5V DI 8B36 03 0 to 1kQ OV to 5V DI 8B36 04 0 to 10kQ OV to 5V DI 8B Modules 19 DI 78B Hardware Manual DI 8B38 Strain Gage Input Modules Narrow amp Wide Bandwidth Each DI 8B38 module isolates filters and amplifies a full bridge strain gage input signal and provides an analog volt age output The 8B38 can interface to transducers with a nominal resistance of 100 to 10k Bridge excitation is provided from the module with a stable 10 00V or 3
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