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DI–710 Series and DI-715B Series Hardware Manual

Accessories

47

present. The differential amplifier is unique in its ability to measure signals originating from sources with different
ground potentials relative to the computer

provided it is connected properly

.

The most common error made in connecting differential amplifiers is the tendency to ground both ends of a signal
shield. This causes current to flow through the shield and induces noise on the signal to be measured. Ensuring that
only one ground exists on the signal circuit eliminates this problem.

+

Signal

Source

Differential

Amplifier

-

gnd

Signal

Lead

Shield

Ground loop caused by circulating currents.

DI-205 terminal strip

WRONG APPROACH

Circulating currents in signal shield

induce noise on signal of interest.

+

Signal

Source

Differential

Amplifier

-

gnd

Signal

Lead

Shield

Potential difference

(no path for current to circulate)

DI-205 terminal strip

RIGHT APPROACH

One ground on the signal circuit eliminates

noise-inducing ground loops.

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Содержание DI-710 Series

Страница 1: ...ny 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 comp...

Страница 2: ......

Страница 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 Instrument...

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Страница 5: ...B Ethernet 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...

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Страница 7: ...tallation 9 Unpacking 9 Installing the Device Drivers USB Only 9 Installing an Ethernet Device Directly Connected to your PC or Connected via a Hub or Switch Where ONLY DI 71x Products are Installed 1...

Страница 8: ...and alone Models 33 PC connected operation 34 Networked operation as a data acquisition server DI 710 ELS DI 710 EHS and DI 715B ES models 34 Stand alone data logger operation 34 The Stand alone Set U...

Страница 9: ...g Shunt Resistors 53 DI 5B Modules 54 DI 5B30 31 Analog Voltage Input Modules Narrow Bandwidth 54 DI 5B32 Analog Current Input Modules 55 DI 5B33 Isolated True RMS Input Modules 56 DI 5B34 Linearized...

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Страница 11: ...e 0 0017 samples second when recording to a memory card 14 bit A D converter for high resolution measurement accuracy 16 entry input scan list allows you to scan any sequence of input channels at any...

Страница 12: ...input output operations These lines provide an interface for the transfer of data between user memory and a peripheral device connected to the instrument Digital inputs can monitor alarms or sensors...

Страница 13: ...oftware License Agreement This software is accessed through the Dataq Instruments Hardware Manager which can be found in the Start menu under the WINDAQ program group called Dataq Instruments Hardware...

Страница 14: ......

Страница 15: ...coefficient 50ppm C Offset temperature coefficient 0 25 V C Digital Filtering PC connected models Conditional over sampling Stand alone models None Analog measurement range software selectable per ch...

Страница 16: ...z Assumes SD memory latencies of 80 milliseconds or less Minimum sample throughput rate PC connected 0 0034 Hz Stand alone 0 0017 Hz Maximum scan list size 17 entries Sample buffer size 2kb Calibratio...

Страница 17: ...ixteen position terminal blocks DI 715B One removable 32 port screw terminal block Operating Environment 0 C to 70 C Enclosure DI 710 Aluminum base with steel wrap around Aluminum end panels with plas...

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Страница 19: ...PC through the USB interface For DI 715B models turn on the power using the Power Switch The Mode LED will be on when power is applied 2 With your computer powered Windows running and all other applic...

Страница 20: ...is warning twice once for each driver USB and Serial Port 6 After the Drivers are installed click Finish to close the Found New Hardware Wizard Windows should prompt you that the device has been insta...

Страница 21: ...card Note When installing an Ethernet device directly connected to your PC you MUST use a crossover cable provided Installation of an Ethernet device via an Ethernet hub switch containing ONLY DI 71x...

Страница 22: ...Select Internet Protocol TCP IP 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 add...

Страница 23: ...bnet mask 9 Click on the OK button to close the Internet Protocol TCP IP Properties dialog box then click on the OK but ton in the Local Area Connection Properties dialog box for the changes to take e...

Страница 24: ...the Hubs could instead be routers with DHCP turned off i e a static IP assigned net work Contact your system administrator for details about your network 1 Have the system administrator designate an...

Страница 25: ...ext boxes 8 Click on the Set Static button Your device will appear in the list of devices to install allowing you to continue your WINDAQ installation at Step 14 It may take more than 15 seconds for y...

Страница 26: ...ou have a USB device be sure to install the drivers before installing WINDAQ software See Installing the Device Drivers USB Only on page 9 Ethernet devices do not require driver installation Whether y...

Страница 27: ...ontinuing 9 When prompted specify the directory where you want to install your WINDAQ software It is recommended that you accept the default If you have already successfully installed a DI 148 DI 158...

Страница 28: ...later date you must run the installation again with all devices old and new plugged in 18 To run WINDAQ Data Acquisition software or the Stand alone Set Up software go to the appropriate program group...

Страница 29: ...struments Hardware Manager may be accessed through the Windows Program Manager Group as specified during installation default is Start Programs WINDAQ Dataq Instruments Hardware Manager All available...

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Страница 31: ...r no circumstances should the DI 710 be used in a measurement situation where it will experience common mode voltages in excess of 30 VDC or peak AC the device s full scale range without damage The gr...

Страница 32: ...ead CAUTION on page v before connecting input signals 0 1 2 3 4 5 6 7 Digital Input Output DGnd 5V R AGnd Analog Channels These two ports are designated Digital Grounds These two ports are Reserved Th...

Страница 33: ...sub connector The two removable 16 port screw terminal blocks may be replaced by a 37 pin D Sub Connector for all DATAQ Instruments DI 710 Series products add a D to the model number Refer to the foll...

Страница 34: ...crews DI 5B modules are installed on or removed from the socketed 5B backplane and are secured with a non removable mounting screw Each channel position is labeled CHANNEL 1 CHANNEL 2 etc on the socke...

Страница 35: ...nnections 25 Instrument Rear Panel DI 710 models The Rear panel of your DI 710 Model can vary depending on your model Stand alone models add a removable stor age slot the LED Mode table and a Control...

Страница 36: ...ntrol Button Channels 1 8 and corresponding Excitation connections can be made directly to the removable screw terminal block located on the rear panel of the instrument All connections are clearly la...

Страница 37: ...Models The Expansion connector may be used to access channels 9 16 by connecting either a DI 705 adds up to 8 direct inputs or a DI 75B adds up to 8 5B signal conditioned inputs The Digital I O may a...

Страница 38: ...l cause Error Mode Mode LED is orange Note SD cards should be locked before inserting into a card reader Your PC may try to change the flash card format whenever it reads the data on your MMC or SD ca...

Страница 39: ...be safely removed Flashing Green Busy Indicates the instrument is busy Do Not Remove Memory Card Orange Error Possible errors include but are not limited to MMC SD removed prematurely Memory card rem...

Страница 40: ...o its receptacle by lining up the pegs and pressing it onto the circuit board firmly The shunt resistor receptacle for each channel is directly behind the slot on the 5B backplane for that channel 4 R...

Страница 41: ...ay be enabled for general pur pose digital I O functions The direction of the digital bits must be set in the DATAQ Instruments Hardware Manager using the Digital I O Setup command The default state f...

Страница 42: ...put is 0V to 5V High Low Calibration Use the following diagram as a guideline for the High Low calibration method Gain should be set to 2 4 or 8 for better resolution depending on your actual input ra...

Страница 43: ...cord data to a PC When connected to a PC data recording sessions may be configured and data may be acquired using WINDAQ Acquisition software just the same as if the model were a PC based instrument T...

Страница 44: ...recording insert the memory card into your card reader to access the data file The data file can then be opened with WINDAQ Waveform Browser Software for MMC allowing analysis and review features See...

Страница 45: ...en in WINDAQ Waveform Browser for MMC see WinDaq Waveform Browser for MMC on page 37 Note To read the data files SDs should be locked before inserting into a card reader If the SD is not locked Window...

Страница 46: ...ed into a reader a not formatted error is seen Dependent upon the reader being used Sometimes the driver for an SD card reader appears dead Reboot your PC When attempting to read the mem ory card usin...

Страница 47: ...sing WINDAQ Acquisition software PC operation wdq files must be reviewed in the standard WINDAQ Waveform Browser Even if connected to a PC WINDAQ Waveform Browser cannot eavesdrop on the data being re...

Страница 48: ......

Страница 49: ...DI 710 Series and DI 715B Series Hardware Manual Block Diagram 39 6 Block Diagram DI 710 Models...

Страница 50: ...DI 710 Series and DI 715B Series Hardware Manual Block Diagram 40 DI 715B Models 5B Back plane Expansion Connector...

Страница 51: ...ted True RMS Input Modules 56 DI 5B34 Linearized 2 or 3 Wire RTD Input Modules 57 DI 5B35 Linearized 4 Wire RTD Input Modules 59 DI 5B36 Potentiometer Input Modules 61 DI 5B38 Strain Gage Input Module...

Страница 52: ...22 gauge wire and each is silk screened with the corresponding D connector pin number see 37 pin D sub connector on page 23 The DI 705 also features a 37 pin male pass through connector which allows...

Страница 53: ...ingle ended inputs only The Digital I O may be enabled as Channel 17 Note The Digital I O is not available in stand alone mode Pinout for the DI 705 is as follows screw terminal in bold 1 N C 11 CH8 2...

Страница 54: ...tal I O Analog Output provides access to the Digital I O ports of the 37 pin D sub connector Note Digital I O connections cannot be used concurrently DI0 and DO0 are directly connected inside the DI 7...

Страница 55: ...ingle ended Amplifier A single ended amplifier is the most straightforward approach to connecting signals to the DI 205 However to derive adequate performance the use of a single ended amplifier requi...

Страница 56: ...on a signal of interest Two signal measurement conditions govern the configuration of a differential channel input The signal to be mea sured is ground referenced or the signal to be measured is isol...

Страница 57: ...ent to flow through the shield and induces noise on the signal to be measured Ensuring that only one ground exists on the signal circuit eliminates this problem Signal Source Differential Amplifier gn...

Страница 58: ...le of thumb Any application requiring a differential amplifier also defines a need for quality signal cable Four elements combine to ensure adequate quality signal cable a twisted signal pair with low...

Страница 59: ...ew termi nal block located on the back panel of the instrument Connecting the DI 75B to the Host Instrument NOTE The dual ended power cable is sized to fit when the DI 75B is stacked on top of the hos...

Страница 60: ...g 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 and are identical i...

Страница 61: ...essories 51 DI 75B Rear Panel EXPANSION OUT can be used to access the Digital I O of the DI 715B using a DI 705 and CABL 7 Connect the appropriate end of the expansion cable to the host instrument the...

Страница 62: ...g power jack on the DI 75B and plug the other end into the host instrument power input jack POWER status lamp Glows green when the POWER switch is in the 1 position indicating power is applied to the...

Страница 63: ...eted exactly the same as for DI 715B modules See Calibration and Gain Settings on page 32 for more information Gain The signal conditioned or DI 5B module channels on the DI 75B output 5 volts to the...

Страница 64: ...22 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...

Страница 65: ...ously by simply connecting pin 22 the Read Enable pin to I O Common pin 19 A precision 20 current conversion resistor is supplied with the DI 5B32 module see block diagram for installation details Sig...

Страница 66: ...imply 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 bar...

Страница 67: ...d Enable 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 whi...

Страница 68: ...200 C 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 10 Cu 0 004274 DI 5B34C 01 DI 5B34C 02 DI 5B34C 03 0 C 32 F to 120 C 248 F 10 at 0 C 0 C 32 F to 1...

Страница 69: ...on is 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...

Страница 70: ...o 200 C 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 10 Cu 0 004274 DI 5B35C 01 DI 5B35C 02DI 5B35C 03 0 C 32 F to 120 C 248 F 10 at 0 C 0 C 32 F to 1...

Страница 71: ...s provided 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 smal...

Страница 72: ...n resistors 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 vibrati...

Страница 73: ...0 to 10k 10 0V at 3mV V Sensitivity 5V to 5V DI 5B38 33 or DI 5B38 03 Half Bridge 100 to 10k 3 333V at 3mV V Sensitivity 5V to 5V DI 5B38 34 or DI 5B38 04 Half Bridge 300 to 10k 10 0V at 3mV V Sensiti...

Страница 74: ...necting 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 o...

Страница 75: ...rol 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...

Страница 76: ...transducers 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 exc...

Страница 77: ...ITATION 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...

Страница 78: ...comparator 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...

Страница 79: ...ard 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...

Страница 80: ...B47J 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...

Страница 81: ...isolation 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 filt...

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Страница 84: ...Telephone 330 668 1444 Fax 330 666 5434 E mail support dataq com Vertrieb Distributed by ALTHEN GmbH Mess und Sensortechnik Frankfurter Str 150 152 Tel 49 0 6195 7006 0 http www althen de 65779 Kelkh...

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