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Dataq DI-720-EN, User Manual

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Dataq DI-720-EN User Manual Download Page 47

DI–720/DI–722/DI–730 Series User Manual

Block Diagram

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DI-730 Series (Analog Input)

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Summary of Contents for DI-720-EN

Page 1: ...nslated 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...

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Page 3: ... 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 f...

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Page 5: ...net RS 232 Serial or Parallel Printer Port 3 Apply power to your data acquisition device your PC and the device under test 4 Use a digital voltmeter to make the following measurements a Measure the voltage both the AC and DC range between the ground terminal of your data acquisition device and Signal of the device under test This measurement should not exceed the Full Scale Range of your data acqu...

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Page 7: ...Instrument to your PC or Network 17 Installing WinDaq software for Ethernet Products 18 Daisy Chaining Multiple Ethernet Products 19 TCP IP Manager Ethernet Models Only 20 WinDaq Waveform Navigator Ethernet models only 21 4 Instrument Controls Indicators and Connectors 23 DI 720 Series Instrument Front Panel 23 DI 722 Series Instrument Front Panel 25 DI 730 Series Instrument Front Panel 27 DI 720 ...

Page 8: ...l 54 Installing DI 8B Modules 54 Enabling CJC for Thermocouple Modules 56 Configuring DI 78B Channels in WinDaq 56 DI 720 Host Instruments 57 DI 730 Host Instruments 58 Configuring DI 78B Channel Gain you MUST configure gain for proper readings 58 DI 8B Modules 60 DI 8B30 31 Analog Voltage Input Modules 3Hz Bandwidth 60 DI 8B32 Analog Current Input Modules 61 DI 8B34 Linearized 2 or 3 Wire RTD Inp...

Page 9: ...S Input Modules 80 DI 5B34 Linearized 2 or 3 Wire RTD Input Modules 81 DI 5B35 Linearized 4 Wire RTD Input Modules 83 DI 5B36 Potentiometer Input Modules 85 DI 5B38 Strain Gage Input Modules Narrow Wide Bandwidth 86 DI 5B40 41 Analog Voltage Input Modules Wide Bandwidth 88 DI 5B42 2 Wire Transmitter Interface Modules 89 DI 5B43 Isolated DC Transducer Amplifier Input Module 90 DI 5B45 Frequency Inp...

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Page 11: ...nge differential inputs 20V Full Scale DI 730 Series Instruments offer 8 fixed isolated high voltage range 1000V Full Scale differential inputs and 16 general purpose 10V Full Scale non isolated inputs available through the EXPANSION USB and PP models or Channel Expansion EN models connector on the rear of the instrument General pur pose inputs are connected directly to a multiplexer Each channel ...

Page 12: ...ltage range differential inputs General purpose inputs feature software programmable input measurement ranges of 10V 5V 2 5V and 1 25V full scale with gain ranges of 1 2 4 and 8 Analog Output On DI 720 and DI 722 instruments the D A subsystem features two buffered 12 bit D A converters for outputting analog data DI 730 instruments have one 12 bit D A converter DI 7xx Series instruments feature a s...

Page 13: ...software selectable per channel DI 722 16 Series 24 differential 16 single ended software selectable on channels 17 32 DI 722 32 Series 32 differential DI 730 Series 8 isolated fixed differential plus 16 non isolated general purpose inputs 16 single ended or 8 differential Converter resolution DI 72x 16 bit 14 bit when used with WINDAQ software DI 730 14 bit Common mode rejection ratio DI 72x 80 d...

Page 14: ...or 1 bit max 1kHz sample rate Input offset voltage 1 bit max 1kHz sample rate Input settling time 4µs to 0 01 at all gains Input impedance DI 720 1 MΩ resistor tied to GND on the input channel DI 722 1 MΩ DI 730 10 MΩ Maximum jitter between synchronized units 5 microseconds Analog Outputs Number of channels DI 720 Two buffered analog outputs DI 722 None DI 730 One analog output Resolution 12 bit 1...

Page 15: ...00 USB products Pre trigger points Post trigger points the number of enabled channels must be less than or equal to 15 000 Trigger channel Any channel Trigger level hysteresis 8 bit 256 counts On board DSP Type Analog Devices ADSP2181 32 MIPS Clock frequency 16 MHz external 64 MHz internal Data memory 16k words Program memory 16k words Physical Environmental Box dimensions 7 29 W 9 L 1 52 H I O co...

Page 16: ...DI 720 DI 722 DI 730 Series User Manual Specifications 6 Power DI 720 4 5 Watts DI 722 10 Watts DI 730 14 Watts ...

Page 17: ...rd on the sleeve of your CD ROM This password will give you access to that software If you did not order WINDAQ Pro or WINDAQ Pro recording software the WINDAQ Lite recording soft ware will be available to you for free without a password If an item is missing or damaged call DATAQ Instruments at 330 668 1444 DATAQ support will guide you through the appropriate steps for replacing missing or damage...

Page 18: ...t the other end of this cable to your computer s parallel printer port Note the LPT port number to which you connected your device LPT1 LPT2 etc 3 Set up your computer s Printer Port operating mode The parallel port may be set up in Standard Bi directional or EPP mode to communicate with your instrument Choose a parallel port mode based on the desired sample rate Parallel Port Mode Maximum Data Th...

Page 19: ...at do you want to do dialog box select the Install Software radio button and click OK c In the Installing Software dialog box select the Install Software for all other products radio button and click OK d In the Specify the product dialog box you must choose the version of WINDAQ you would like to install If you purchased WINDAQ Pro or Pro software select the appropriate option and click OK If you...

Page 20: ...vanced CODAS q Installation is complete Re start your PC to enable WINDAQ device drivers for the printer port 6 Run WinDaq software from the program group designated in Step 5n above default is Start Programs WINDAQ WinDaq Pro version of the software installed Lite Pro Pro Data Acq DI 7xx model number LPT For help running WinDaq Acquisition and Playback software please see the help files inside th...

Page 21: ...ded in The WINDAQ Resource CD a Insert the The WINDAQ Resource CD into your CD ROM drive The Windows auto run feature should start the installation program If the Windows auto run feature is not enabled on your PC run the setup exe pro gram located on the root of the CD directory b In the What do you want to do dialog box select the Install Software radio button and click OK c In the Installing So...

Page 22: ... 1 the third device installed should have an ID address of 2 etc Click OK to continue installation n The Installation Option dialog box allows you to specify access to WINDAQ for multiple users on the same PC If you are the only user or you would like to allow access to all users click Yes If there are multiple users and you would like to be the only one able to access WINDAQ click No Click Cancel...

Page 23: ...u to change the IP address of your network card Installation of an Ethernet device via a hub switch containing ONLY DI 720 722 730 785 788 products also requires you to change the IP address of your network card 1 Find the Network Connections on your computer usually in the Control Panel 2 Double click on the Local Area Connection icon 3 Click on the Properties button Standard CAT 5 Cable 100M Max...

Page 24: ...in the This connection uses the following items window and click on the Properties button 5 Click on the General tab 6 Select the radio button Use the following IP address 7 Enter 169 254 0 1 in the space provided for the IP address 8 Enter 255 255 0 0 in the space provided for the Subnet mask ...

Page 25: ...olving IP addresses Installing an Ethernet device via a distributed network without a DHCP server where one or more DATAQ Instruments devices will coexist with other Ethernet devices and where static IP address are individually assigned Installation of an Ethernet device connected to a distributed network that does not have a DHCP server or where the DHCP server is turned off requires you to set a...

Page 26: ...d 7 Select the Change IP Address drop down command 8 Select the Set a static IP Address radio button 9 Enter the IP address provided by your system administrator in Step 1 above Do not check the Remote Device checkbox 10 Click on the OK button for the change to take effect Note These instructions change the settings inside the device If you move the device to a DHCP enabled network i e where IP ad...

Page 27: ...nstall WINDAQ software see Installing WinDaq software for Ethernet Products on page 18 2 Connect your Ethernet device to your Local Area Network see Connecting your Ethernet Instrument to your PC or Network on page 17 3 Run the TCP IP Manager software default location is Start Programs WINDAQ IP Manager 4 Apply power to the device see Applying Power to the DI 7xx Series Instrument on page 7 Connec...

Page 28: ...click OK 4 In the Specify the product dialog box you must choose the version of WINDAQ you would like to install If you purchased WINDAQ Pro or Pro software select the appropriate option and click OK If you did not purchase software choose the WINDAQ Lite option and click OK 5 In the Specify the Instrument dialog box select the DI 720 740 730HV Portable Instruments radio button and click OK 6 In t...

Page 29: ...llation 17 The Installation Option dialog box allows you to specify access to WINDAQ for multiple users on the same PC If you are the only user or you would like to allow access to all users click Yes If there are multiple users and you would like to be the only one able to access WINDAQ click No Click Cancel to abort the installation 18 Select the desired options for installation of WINDAQ XL and...

Page 30: ... independently opened using WINDAQ Playback Software WINDAQ Waveform Browser TCP IP Manager Ethernet Models Only The TCP IP Manager allows you to easily manage all DI 720 DI 722 and DI 730 Ethernet Instruments installed on your PC The TCP IP manager is installed when installing WINDAQ Software Access the TCP IP Manager via the Windows program group specified during WINDAQ Software installation def...

Page 31: ...ed devices with the following exceptions The Open and Record menu items in the File Menu are not available The Triggered Mode Triggered Storage and Remote Storage menu items in the Options Menu are not available WINDAQ Waveform Navigator Ethernet models only The WINDAQ Waveform Browser Navigator allows you to display and scroll through data recorded synchronously using multiple daisy chained DI 72...

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Page 33: ...analog output accessible through WINDAQ and SDK software and two analog grounds labeled AGD Note When using your DI 720 USB as a printer port device Digital Output ports DO1 DO2 and DO3 are unavail able If you have an expander excluding the DI 78B and DI 75B connected via the rear panel of the DI 720 USB Digital Output is not available When using your DI 720 USB as a USB device the digital outputs...

Page 34: ...t and the channel number For example say we have channels 2 and 10 configured as a differen tial input Channel 2 is the positive input channel 10 is the negative input and the pair is referred to as chan nel 2 differential The 37 pin male D connector on the right provides access to analog input channels 17 through 32 This connector also includes DAC1 which is a second digital to analog converter t...

Page 35: ... DI 722 Series instrument The analog inputs are labeled CH1 CH1 through CH16 CH16 for the DI 722 16 and CH1 CH1 through CH32 CH32 for the DI 722 32 The analog grounds are labeled AGD Read CAUTION on page v before connecting input signals The DI 722 16 can accept 16 high level or precon ditioned analog inputs in single ended configuration or 16 high level or preconditioned analog inputs in differen...

Page 36: ...ered channel in the pair assuming the positive input and the channel number For example say we have channels 18 and 26 configured as a differential input Channel 18 is the positive input channel 26 is the negative input and the pair is referred to as channel 18 differential The 37 pin male D connector on the DI 722 16 labeled B in the graphic of the front panel provides access to ana log input cha...

Page 37: ...f channel to channel and input to output isolation protects delicate control circuits computer equipment and personnel from high common mode voltages Use the EXPANSION USB and PP devices or Channel Expansion EN devices port on the rear of the instrument with optional CABL 7 part number 100679 to access the 16 general purpose 10V Full Scale analog inputs Use the following diagram for pinout see als...

Page 38: ...n the USB control ler is enabled POWER This indicator glows green when power is applied to the DI 720 DI 722 or DI 730 Series instrument POWER INPUT JACK Allows you to apply power to the instrument Power can be applied with the included power adapter or you can use an alternate source as long as it is suitable 9 to 36VDC 3A maximum POWER SWITCH Controls power to the DI 720 DI 722 or DI 730 Series ...

Page 39: ...o the DI 78B DI 75B DI 725 or DI 725B expansion instrument Use the following diagram for pinout 1 5 V P W R 3 R e s e r v e d 5 R e s e r v e d 7 R e s e r v e d 9 R e s e r v e d 1 1 R S t a r t S t o p 1 3 P W R G N D 1 5 R e s e r v e d 1 7 D A C 1 1 9 R e s e r v e d 2 1 C H 3 2 2 3 C H 3 1 2 5 C H 3 0 2 7 C H 2 9 2 9 C H 2 8 3 1 C H 2 7 3 3 C H 2 6 3 5 C H 2 5 3 7 A G N D 3 9 R e s e r v e d ...

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Page 41: ... x 0 1 10mV So we would need a DVM with a resolution of 10V or more to calibrate the 10 volt range A stable voltage source with a stability specification equal to or greater than the minimum DVM resolution as calculated above required to calibrate the instrument at the highest desired gain OR An alternative is to use a voltage calibrator with enough resolution as calculated above to calibrate the ...

Page 42: ...en prompts DI 720 Series Instruments And 16 DI 730 General Purpose Channels DI 722 and DI 730 Series 8 Wide Range Channels accessi ble from the front panel Channels should be measured in isolation and not in groups with the shortest lead possible DI 720 Series Instruments 16 DI 730 General Purpose Channels DI 722 and DI 730 Series 8 Wide Range Channels accessible from the front panel Channels shou...

Page 43: ...ges described in TABLE 1 arrange to have your instrument recali brated by DATAQ Instruments Full Scale Span Calibration Verification DI 720 and DI 722 Instruments Only 1 Referring again to TABLE 1 set the instrument s gain to 1 and apply the voltage indicated by the SPAN VOLT AGE column of TABLE 1 to the selected channel Note that since all channels are calibrated together any channel may be selec...

Page 44: ...gh 4 6 If any readings are out of the acceptable ranges described in TABLE 2 arrange to have your instrument recali brated by DATAQ Instruments Full Scale Span Calibration Verification DI 730 Instruments Only 1 Referring again to TABLE 2 select the 10mV range and apply the voltage indicated by the SPAN VOLTAGE column of TABLE 2 to the selected channel 2 Verify the reading by comparing the value di...

Page 45: ...DI 720 DI 722 DI 730 Series User Manual Block Diagram 35 6 Block Diagram DI 720 Series 1 32 ...

Page 46: ...DI 720 DI 722 DI 730 Series User Manual Block Diagram 36 DI 722 Series ...

Page 47: ...DI 720 DI 722 DI 730 Series User Manual Block Diagram 37 DI 730 Series Analog Input I S O L A T I O N ...

Page 48: ... In 10 100 BaseT RX TX RX TX Sync Out Sync In Clock Out RX TX Interrupt Synchronous Clock Synced ADC Clock Command Status Data Address Link RJ45 Toward PC RJ45 Expansion Sync Start Encoder Decoder PLL Clock Reconstruction Ethernet Controller Ethernet Switch Interface Controller DSP ADC Ethernet Interface DI 720 or DI 730 Link ...

Page 49: ...z Bandwidth 66 DI 8B42 2 Wire Transmitter Interface Modules 67 DI 8B45 Frequency Input Modules 68 DI 8B47 Linearized Thermocouple Input Modules 69 DI 8B50 51 Analog Voltage Input Modules 20kHz Bandwidth 70 DI 75B 5B Module Channel Expander 71 DI 5B Modules 78 DI 5B30 31 Analog Voltage Input Modules Narrow Bandwidth 78 DI 5B32 Analog Current Input Modules 79 DI 5B33 Isolated True RMS Input Modules ...

Page 50: ...nector which allows you to connect our BNC cable model num ber CABL 4 or our 5B back plane cable model number CABLE 1 or any 37 pin DAS 16 compatible cable to the DI 720 while still allowing screw terminal access Input Signal Configuration Any combination of single ended or differential channels may be connected to the DI 705 but keep in mind a differ ential channel uses two analog inputs Configur...

Page 51: ... of the DI 205 Analog Output DAC1 DAC2 VOUT The digital to analog converter DAC outputs have two applications As a general purpose analog output accessible through WINDAQ or Programmer s SDK software or as a variable signal suppression voltage automatically enabled and multiplexed to all channels through Programmer s SDK software Input Signal Configuration Each DI 205 may be configured to connect ...

Page 52: ...l source as follows Connecting a Differential Amplifier A differential channel configuration is a special case approach to signal measurement that should be used with all low level measurements less than 1v or when the signal to be measured is located far away from the DI 205 greater than 15 feet When in a differential operating mode the amplifier sees the difference in voltage between the high an...

Page 53: ...by a number of different factors The most common of these is different physical locations of the computer and signal ground points Since wire is not a perfect conductor exhibiting zero resistance regardless of length a voltage drop however small will always be present The differential amplifier is unique in its ability to measure signals originating from sources with different ground potentials re...

Page 54: ...ssible but the value you use is dependent upon the output impedance of your signal source Generally the value of the bias resistor should be 10 times the output impedance of your signal source or higher Bias resistors greater than 1MΩ are not recommended Signal Cable and the Differential Amplifier Quick rule of thumb Any application requiring a differential amplifier also defines a need for qualit...

Page 55: ...plications where such signal cable is used a dramatic decrease in noise pickup will be experienced The drain wire should be considered as the shield and should be connected as described in the Connecting a Differential Ampli fier section above Signal cable meeting all four criteria for quality is Belden No 8641 Insulated Outer Jacket Foil Shield Drain Wire Twisted Signal Pair Stranded Copper Condu...

Page 56: ...ferential inputs to the host s 8 wide measurement range inputs for a diverse blend of 40 total channels A maximum of 240 channels may be configured using multiple DI 725s Connecting the DI 725 to the Host Instrument NOTE The included expansion signal cable and dual ended power cable are sized to fit when the DI 725 is stacked on top of or below the host DI 720 or DI 730 instrument If you are using...

Page 57: ...position indicating power is applied POWER LOW lamp Glows red when the DI 725 cannot derive adequate power from its host instrument In this case an alternate power source is required If the POWER LOW lamp comes on and you are using the DI 725 with a DI 720 or DI 730 the power supply that is powering these host instruments can be used to power the DI 725 as well Simply unplug the five pin DIN end o...

Page 58: ...epresents an input channel An input channel is enabled by clicking the desired box Which box you click which mouse button you click with and how many times you click the mouse button deter mines whether the input channel is enabled for single ended operation differential operation or digital input opera tion The following pages show how to enable channels when using the DI 725 with a DI 400 DI 720...

Page 59: ...host DI 400 and the expansion channels are enabled on the next MUX row down The result is similar when more DI 725 s are added to the system When a Single DI 725 is Used These 14 channels are still available on the host DI 400 A A These are the 32 DI 725 expansion channels enable them on this row These 2 channels are consumed by the DI 725 therefore unavailable When Two DI 725 s are Used These 12 ...

Page 60: ...host DI 720 and the expansion channels are enabled on the next MUX row down The result is similar when more DI 725 s are added to the system When a Single DI 725 is Used These 30 channels are still available on the host DI 720 A A These are the 32 DI 725 expansion channels enable them on this row These 2 channels are consumed by the DI 725 therefore unavailable When Two DI 725 s are Used These 28 ...

Page 61: ...est numbered channels on the host DI 730 and the expansion channels are enabled on the next MUX row down The result is similar when more DI 725 s are added to the system When a Single DI 725 is Used These 8 channels are still available on the host DI 730 A A These are the 32 DI 725 expansion channels enable them on this row These 2 channels are consumed by the DI 725 When Two DI 725 s are Used The...

Page 62: ... 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 EXP...

Page 63: ... 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 q...

Page 64: ...ty of the power supply is 2 5A Power switch Controls power to the DI 78B 1 position is on 0 is off Installing DI 8B Modules 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 Power LED Power Switch EXPANSION IN P...

Page 65: ...keted 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 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 posit...

Page 66: ... 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 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 Confi...

Page 67: ... 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 o...

Page 68: ...led by clicking once with the left mouse button The isolated differential inputs on the front panel of the DI 730 are still available Configuring DI 78B 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 ...

Page 69: ...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 co...

Page 70: ...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 Ordering Information MODEL INPUT RANGE OUTPUT RANGE DI 8B30 01 ...

Page 71: ... 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 8B32 module provides protection against accidental connection of power line voltages up to 30VAC Isolation is provided by optical coupling to suppress transmission...

Page 72: ...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 8B34 module provides protection against accidental connection of power line volt ages up to 240VAC Clamp circuits on ...

Page 73: ...citation 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 fi...

Page 74: ...he 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 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 8B36 module provides protection against acciden...

Page 75: ... 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 sur...

Page 76: ... 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 Ordering Information MOD...

Page 77: ...sponse 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 ha...

Page 78: ...ensors The excitation is available on the EXC terminal with return on the terminal A special input circuit on the DI 8B45 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...

Page 79: ...er 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 2ºC 25ºC Ordering Information MODEL TYPE INPUT RANGE ACCURACY DI 8B47J...

Page 80: ...n 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 surges The module is powered from 5VDC 5 Ordering Information MO...

Page 81: ...he host instrument through the supplied dual ended power cable Connecting the DI 75B to the Host Instrument NOTE The included expansion signal cable and the dual ended power cable are sized to fit when the DI 75B is stacked on top of or below the host instrument If these instruments are not in a stacked configuration do so before proceeding 6 Connect the appropriate end of the included expansion s...

Page 82: ...not to overtighten the two screws DI 5B modules are installed on or removed from a socketed backplane and are secured to the backplane with a non removable mounting screw Each channel position is labeled CHANNEL 1 CHANNEL 2 etc on the socketed backplane The DI 5B modules can be mixed or matched in any combination suitable for the application 1 Remove front panel and bezel by removing the two screw...

Page 83: ...long the bottom row Note that this screw terminal block can be removed from the DI 75B thus making signal connections to the screw terminals easy Note also that the screw terminal block is keyed thus diffi cult to improperly re insert Each channel labeled CHANNEL 1 CHANNEL 2 etc on the socketed backplane has four corresponding screw terminals for your signal connections channel channel excitation ...

Page 84: ...em part number 100454 25R POWER status lamp Glows green when the POWER switch is in the 1 position indicating power is applied to the DI 75B POWER LOW lamp Glows red when the DI 75B cannot derive adequate power from its host instrument In this case an alternate power source is required Any suitable power source 9 to 36 volts DC at 3A maximum may be connected to either power input jack to provide t...

Page 85: ... 75B is connected Channels 17 to 24 channels 1 to 8 on the DI 75B are defined by DI 5B modules and are enabled by clicking once with the left mouse button Note that if a DI 5B module is not plugged into a slot on the DI 75B then that channel is available on the host instrument The following grid is typical of two DI 75B s used with a DI 72x Again if a DI 5B module is not plugged into a slot on the...

Page 86: ...is connected Channels 17 to 24 channels 1 to 8 on the DI 75B are defined by DI 5B modules and are enabled by clicking once with the left mouse button Note that if a DI 5B module is not plugged into a slot on the DI 75B then that channel is available on the host instrument The following grid is typical of two DI 75B s used with a DI 730 Again if a DI 5B module is not plugged into a slot on the DI 7...

Page 87: ...r WINDAQ Pro recording software 2 In the Edit menu click on Channel Settings The Channel X Settings dialog box where X represents the cur rently enabled channel displays 3 In the upper left corner of the dialog box click the gain factor 2 to get a full scale range of 5 volts 4 Click the Next or Previous command button at the bottom of the dialog box to step to the next or previously enabled channe...

Page 88: ...the Read Enable pin to I O Common pin 19 Signal filtering is accomplished with a six pole filter which provides 95dB of normal mode rejection at 60Hz and 90dB at 50Hz Two poles of this filter are on the field side of the isolation barrier and the other four are on the com puter side After the initial field side filtering the input signal is chopped by a proprietary chopper circuit Isolation is pro...

Page 89: ...y by simply connecting pin 22 the Read Enable pin to I O Common pin 19 A precision 20Ω current conversion resistor is supplied with the DI 5B32 module see block diagram for installation details Signal filtering is accomplished with a six pole filter which provides 95dB of normal mode rejection at 60Hz and 90dB at 50Hz Two poles of this filter are on the field side of the isolation barrier and the ...

Page 90: ...y connecting pin 22 the Read Enable pin to I O Common pin 19 The field voltage or current input signal is processed through a pre amplifier and RMS converter on the field side of the isolation barrier The converted dc signal is then chopped by a proprietary chopper circuit and transferred across the transformer isolation barrier suppressing transmission of common mode spikes and surges The compute...

Page 91: ...ble pin to I O Common pin 19 RTD excitation is provided from the module by two matched current sources When using a three wire RTD this method allows an equal current to flow in each RTD lead which cancels the effects of lead resistances The excitation currents are very small 0 25mA for 100Ω Pt and 120Ω Ni and 1 0mA for 10Ω Cu which minimizes self heating of the RTD Signal filtering is accomplishe...

Page 92: ... 392 F 0 C 32 F to 600 C 1112 F 0V to 5V 0V to 5V 0V to 5V 0V to 5V 0 46 C 0 36 C 0 46 C 0 88 C 10Ω Cu α 0 004274 DI 5B34C 01 DI 5B34C 02 DI 5B34C 03 0 C 32 F to 120 C 248 F 10Ω at 0 C 0 C 32 F to 120 C 248 F 10Ω at 25 C 0 C 32 F to 160 C 320 F 10Ω at 0 C 0V to 5V 0V to 5V 0V to 5V 0 23 C 0 23 C 0 32 C 120Ω Ni α 0 00672 DI 5B34N 01 0 C 32 F to 300 C 572 F 0V to 5V 0 40 C Includes conformity hyster...

Page 93: ... required between I O Common and Power Common for proper operation of the output switch If desired the output switch can be turned on continuously by simply connecting pin 22 the Read Enable pin to I O Common pin 19 RTD excitation is provided from the module by a precision current source The excitation current is available on two leads which are separate from the two input signal measuring leads T...

Page 94: ... 392 F 0 C 32 F to 600 C 1112 F 0V to 5V 0V to 5V 0V to 5V 0V to 5V 0 46 C 0 36 C 0 46 C 0 88 C 10Ω Cu α 0 004274 DI 5B35C 01 DI 5B35C 02DI 5B35C 03 0 C 32 F to 120 C 248 F 10Ω at 0 C 0 C 32 F to 120 C 248 F 10Ω at 25 C 0 C 32 F to 160 C 320 F 10Ω at 0 C 0V to 5V 0V to 5V 0V to 5V 0 23 C 0 23 C 0 32 C 120Ω Ni α 0 00672 DI 5B35N 01 0 C 32 F to 300 C 572 F 0V to 5V 0 40 C Includes conformity hystere...

Page 95: ...vided from the module by two matched current sources When using a three wire potentiometer this method allows cancellation of the effects of lead resistances The excitation currents are very small less than 1 0mA which minimizes self heating of the potentiometer Signal filtering is accomplished with a six pole filter which provides 95dB of normal mode rejection at 60Hz and 90dB at 50Hz Two poles o...

Page 96: ...esistors to 1mV at 10V excitation allows use of low cost half or quarter bridge trans ducers On wide bandwidth modules the 10kHz bandwidth allows measurement of high speed processes such as vibration analysis Strain Gage excitation is provided from the module by a very stable 10V or 3 333V source The excitation supply is fully isolated allowing the amplifier inputs to operate over the full range o...

Page 97: ...kΩ 10 0V at 3mV V Sensitivity 5V to 5V DI 5B38 33 or DI 5B38 03 Half Bridge 100Ω to 10kΩ 3 333V at 3mV V Sensitivity 5V to 5V DI 5B38 34 or DI 5B38 04 Half Bridge 300Ω to 10kΩ 10 0V at 3mV V Sensitivity 5V to 5V DI 5B38 35 or DI 5B38 05 Full Bridge 300Ω to 10kΩ 10 0V at 2mV V Sensitivity 5V to 5V DI 5B38 36 or DI 5B38 06 Full Bridge 100Ω to 10kΩ 3 333V at 10mV V Sensitivity 5V to 5V DI 5B38 37 or ...

Page 98: ...ing pin 22 the Read Enable pin to I O Common pin 19 The input signal is processed through a preamplifier on the field side of the isolation barrier This preamplifier has a gain bandwidth product of 5MHz and is bandwidth limited to 10kHz After amplification the input signal is chopped by a proprietary chopper circuit Isolation is provided by transformer coupling again using a proprietary technique ...

Page 99: ...room computer The voltage output is logic switch controlled which allows these modules to share a common analog bus without the requirement of external multiplexers The DI 5B modules are designed with a completely isolated computer side circuit which can be floated to 50V from Power Common pin 16 This complete isolation means that no connection is required between I O Common and Power Common for p...

Page 100: ...nsducers and other devices which require a precision 10VDC sup ply and produce a high level output The 1kHz bandwidth significantly reduces ripple and noise inherent in these devices Transducer excitation is provided from the module by a very stable 10V source The excitation supply is fully iso lated allowing the amplifier inputs to operate over the full range of the excitation voltage This featur...

Page 101: ...ION DI 5B43 01 1V 10 0Vdc 40mA DI 5B43 02A 2V 10 0Vdc 40mA DI 5B43 03 3V 10 0Vdc 40mA DI 5B43 04A 4V 10 0Vdc 40mA DI 5B43 05 5V 10 0Vdc 40mA DI 5B43 06 6V 10 0Vdc 40mA DI 5B43 07A 7V 10 0Vdc 40mA DI 5B43 08A 8V 10 0Vdc 40mA DI 5B43 09 9V 10 0Vdc 40mA DI 5B43 10 10V 10 0Vdc 40mA CSA certification pending ...

Page 102: ...arator A 5 1V excitation is available for use with magnetic pickup or contact closure type sensors The excitation is avail able on pin 1 EXC and the excitation common is pin 3 In The DI 5B modules are designed with a completely isolated computer side circuit which can be floated to 50V from Power Common pin 16 This complete isolation means that no connection is required between I O Common and Powe...

Page 103: ...thermocouple types J K T E R S N and B Its correspond ing output signal operates over a 0 to 5V range Each module is cold junction compensated to correct for parasitic thermocouples formed by the thermocouple wire and screw terminals on the mounting hardware Upscale open ther mocouple detect is provided by an internal pull up resistor Downscale indication can be implemented by installing an extern...

Page 104: ... 03 Type J 0 C to 500 C 32 F to 932 F 0 36 C DI 5B47J 12 Type J 100 C to 760 C 148 F to 1400 F 0 70 C DI 5B47K 04 Type K 0 C to 1000 C 32 F to 1832 F 0 80 C DI 5B47K 05 Type K 0 C to 500 C 32 F to 932 F 0 38 C DI 5B47K 13 Type K 100 C to 1350 C 148 F to 2462 F 1 20 C DI 5B47K 14 Type K 0 C to 1200 C 32 F to 2192 F 0 96 C Includes conformity hysteresis and repeatability Does not include CJC accurac...

Page 105: ...olation barrier for anti alias ing purposes and the remaining five pole programmable Bessel filter is located on the system side High pass filter ing is achieved through a second order passive filter located on the field side If desired the output switch can be turned on continuously by simply connecting pin 22 the Read Enable pin to I O Common pin 19 The DI 5B48 offers the option of setting the c...

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Page 108: ...241 Springside Drive Akron Ohio 44333 Telephone 330 668 1444 Fax 330 666 5434 E mail support dataq com Direct Product Links click on text to jump to page Data Acquisition Data Logger Chart Recorder Thermocouple Oscilloscope ...

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