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Manual - DATAQ Instruments

1. Click right to select digital input 1 MUX letters occupy the expansion inputs When other instruments are connected as a slave to the DI 500 16 their channels are enabled starting with row MUX A and B etc when more than 32 channels are multiplexed Using an ordinary pencil label all slave Enabling Channels for Acquisition 16 DI 500 510 Series and DI 750 760 Series Hardware Manual instrument channels by writing the letter from the grid in the box on the instrument panel overlay i e place an A in the box to designate slave channels A1 through A32 If a second DI 500 16 is multiplexed as a slave to the first DI 500 16 enable all 32 channels on the top row of the grid no other expansion is permitted when two DI 500 16 s are multiplexed In this case the expansion cable is con nected from the EXPANSION connector on the master to the AUXILIARY PORT connector on the slave Point to the box in the grid that represents the desired channel and click the left mouse button to enable the channel as a differential input when not using 5B modules or as an input defined by the 5B module when used A check mark is displayed in the desired channel box indicating that a differential input when not using 5B modules or an input defined by the 5B module when used has been enabled A second activation removes the check mark and thus disables the channel Point to the box in the grid that represents the desired
2. O 4 VIN 3 Suppression and 19 Q Protection gt 1 0 Common In 2 A lt cl 22 EXC NO Isolated 7 95 RD EM 1 Computer Side Power NE TER 1 Termination amp Block lt NC 2 DAY E NC T id Isolated 5V Y desa Oscillator Power Common Ordering Information MODEL INPUT RANGE OUTPUT RANGE DI 5B30 01 10mV to 10mV 5V to 5V DI 5B30 02 50mV to 50mV 5V to 5V DI 5B30 03 100mV to 100mV 5V to 5V DI 5B31 01 1V to 1V 5V to 5V DI 5B31 02 5V to 5V 5V to 45V DI 5B31 03 10V to 10V 5V to 5V DI 5B31 07 20V to 20V 5V to 45V DI 5B31 09 40V to 40V 5V to 5V CSA certification pending 5B Modules 25 DI 500 510 Series and DI 750 760 Series Hardware Manual DI 5B32 Analog Current Input Modules DESCRIPTION Each DI 5B32 current input module provides a single channel of analog input which is filtered isolated amplified and converted to a high level analog voltage output see block diagram This voltage output is logic switch con trolled 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 proper operation of the output switch If d
3. All Other DI 500 510 and DI 750 760 Series Instruments This displays the channel selection grid Channel Selection Channels 12345 6 7 B DI 500 MUX A Click to select check or deselect Double click to select differential Click right to select digital input I MUX letters occupy the expansion inputs Each box in this grid represents an input channel An input channel is enabled by clicking the desired box Where in the grid you click which mouse button you click with and how many times you click the mouse button determines whether the input channel is enabled for differential operation for operation defined by the 5B module if used or for differential operation between a pair of channels automatically defined by the grid Since there are so many vari ables each instrument will be presented individually DI 500 16 and DI 750 16 Instruments Used with Slaves Channels 1 through 16 are enabled on the top row of the grid Channel Selection Channels 1 12345673890 3 h DI 500 Enable DI 500 16 channels here MUX A Enable first 32 slave instrument channels here Enable next 32 slave instrument channels here Click to select check or deselect Double click to select differential
4. earized and converted to a high level analog voltage output This 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 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 The excitation current does not flow in the input signal leads which allows RTD measurement to be totally independent of lead resistance The excitation current is very small 0 25mA for 100W Pt and 120W Ni and 1 0mA for 10W Cu which minimizes self heating of the RTD 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 provided by transformer coupling a
5. A quick rule 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 resistance stranded copper conductors surrounded by a multiple folded foil shield with a copper stranded drain wire all contained within an insulated outer jacket Insulated Outer Jacket Foil Shield Drain Wire Twisted Signal Pair Stranded Copper Conductors In applications 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 section titled Connecting a Dif ferential Amplifier on page 7 Signal cable meeting all four criteria for quality is Belden No 8641 Labeling Analog Input Channels Depending on the number of analog input channels your instrument has it may be necessary to label them For exam ple say you are using a DI 510 64 or a DI 760 64 to record 64 analog input channels and you want to record the sig nal connected to channel 28 Looking at the instrument there are two groups or banks of 32 inputs Each bank consists of channels 1 through 32 64 total inputs Since there are two channels labeled 28 how will you know which one will be recorded A small box is provided on the instrument panel to label banks of channels and avoid this prob lem In order for you and the software
6. Product Warranty DATAQ Instruments Inc warrants that this hardware will be free from defects 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 500 510 Series and DI 750 760 Series Hardware Manual Table of Contents Warranty and Service Polity 45 ccadscscicds
7. 64 DI 760 64 64 high level channels Note all instruments are expandable to 240 channels All Analog Inputs Analog resolution 14 bit 1 part in 8192 Sample throughput rate standard parallel port 40 000 samples second max bi directional parallel port 80 000 samples second max enhanced parallel port EPP 250 000 samples second max Gain ranges 1 2 4 8 software selectable per channel Isolation 300V channel to channel 600V input to output High Level Analog Inputs Type Differential Measurement range full scale intended 10VFS Av 1 Maximum analog input without damage 30V Common mode rejection 80 db min Av 1 Gain accuracy 0 0596 Input offset voltage 5 ADC counts Input settling time 4us to 0 01 at all gains Input impedance 30kQ with power on 20kQ with power off Signal Conditioned Analog Inputs Measurement range full scale 5V if DI 5B module is bypassed otherwise defined by DI 5B module All other specs Defined by DI 5B modules module dependent Maximum analog input without damage 240V Specifications 3 DI 500 510 Series and DI 750 760 Series Hardware Manual Analog Outputs Number of channels Resolution Update rate Output voltage ranges Current drive impedance Output settling time to 0 0196 Digital Input Output Capacity Compatibility Max source current Max sink current Digital input termination Input Scan List Capacity Output Scan List Capacity Triggering Pre trigger lengt
8. DI 5B43 08A 8V 10 0Vdc 40m DI 5B43 09 9V 10 0Vdc 40m DI 5B43 10 10V 10 0Vdc 40m CSA certification pending 5B Modules 38 DI 500 510 Series and DI 750 760 Series Hardware Manual DI 5B45 Frequency Input Modules DESCRIPTION Each DI 5B45 frequency input module provides a single channel of frequency input which is isolated and converted to a high level analog voltage output This voltage output is logic switch controlled which allows these modules to share a common analog bus without the requirement of external multiplexers see block diagram The frequency input signal can be a TTL level signal or a zero crossing signal Terminal 3 In on the field side ter minal block is the common or ground connection for input signals A TTL signal is connected from terminal 2 In to terminal 3 In while a zero crossing signal is connected from terminal 4 EXC to terminal 3 In Input cir cuitry for each of the signal types has hysteresis built in An input signal must cross entirely through the hysteresis region in order to trigger the threshold 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 are designed with a completely isolated computer side circuit which can be floated to 50V from Power Common pin 16 This complete isolation means t
9. F to 100 C 212 F OV to 5V 0 36 C DI 5B34 03 0 C 32 F to 200 C 392 F OV to 5V 0 46 C DI 5B34 04 0 C 32 F to 600 C 1112 F OV to 5V 0 88 C 5B Modules 28 DI 500 510 Series and DI 750 760 Series Hardware Manual 102 Cu a 0 004274 DI 5B34C 01 0 C 32 F to 120 C 248 F 10Qat 0 C OV to 45V 0 23 C DI 5B34C 02 0 C 32 F to 120 C 248 F 10Qat 25 C OV to 45V 0 23 C DI 5B34C 03 0 C 32 F to 160 C 320 F 100 at 0 C OV to 45V 0 32 C 1200 Ni 0 00672 DI 5B34N 01 0 C 32 F to 300 C 572 F OV to 5V 0 40 C Includes conformity hysteresis and repeatability CSA certification pending 5B Modules 29 DI 500 510 Series and DI 750 760 Series Hardware Manual DI 5B35 Linearized 4 Wire RTD Input Modules DESCRIPTION In RTD temperature measurement applications requiring a very high level of accuracy the DI 5B35 4 Wire RTD input module offers a significant advantage over 3 wire measurement techniques see block diagram The DI 5B35 measures only the voltage dropped across the RTD and almost completely ignores the resistance or length of the RTD lead wires The DI 5B34 3 Wire RTD module provides lead resistance compensation but requires equal lead resis tances while the DI 5B35 does not require matched lead resistances Each DI 5B35 RTD input module provides a single channel of RTD input which is filtered isolated amplified lin
10. Instruments All other DI 500 510 and DI 750 760 Series Instruments 5V PWR i AGND cii 5V PWR AGND HEN Reserved pened CH9 IN DHAIN Reserved bne CH25 IN Sian Reserved edat CH10 IN Gus ni Reserved e cd CH26 IN GIN Reserved Rosse CH11 IN CHAIN Reserved Rosen CH27 IN CH0 IN Reserved Ba CH12 IN CHEM Reserved nde CH28 IN UTIN Remote start stop anes CH13 IN CH6 IN Remote start stop banan i CH29 IN CH22 IN POWER GND Sees re CH14 IN POWER GND me VETUS CH30 IN Reserved CH7 IN Reserved CH23 IN Reserved CH15 IN Reserved CH31 IN Reserved CH8 IN Reserved CH24 IN DAC1 AGND CH16 IN EE DAC1 RAND CH32 IN d Reserved R d DOS AGND Reserved R d Reserved D CH32IN CHAIN DAC2 SO CH32 IN Sa IN DAC1 na CH31 IN eta N DOS Doi CH31 IN GAN Reserved 8 ed CH30 IN POWER GND CH30 IN POWER GND udin CH22 IN DIO CH22 IN Remote Events CH29 IN CH21IN DH De CH29 IN CH21 IN Remote Start Stop R d CH28 IN visis DI3 So CH28 IN CHROM Reserved rds CH27 IN aid DO1 06 CH27 IN piss Reserved inue CH26 IN DO3 CH26 IN Reserved cub CH25 IN CH18 IN DIS DIG CH25 IN CH18 IN Reserved Reserved CH17 IN DM CH17 IN Reserved AGND 5V PWR AGND 5V PWR Refer to the section titled Increasing the Total Analog Input Channel Capacity on page 10 for more expansion port details Getting Started 13 DI 500 510 Series and DI 750 760 Series Hardware Manual Installing the Software After you have completed the hardware installation connected your signals and labeled the input cha
11. and DI 760 48 Instruments esses eene nennen eterne nennen 20 Table of Contents V DI 500 510 Series and DI 750 760 Series Hardware Manual DI 510 64 and DI 760 64 Instruments eese ener enne nre 21 DI 500 32 X and DI 750 32 X Instruments essere rennen nennen nre 22 DI 510 32 X and DI 760 32 X Instruments eese nennen nnne 23 DI 510 64 X and DI 760 64 X Instruments eese nennen nennen ersten 23 A esseere eseese Gsnb sind le i andi gd binda k an kili kana ERN ONE NE PARA NER FUA DEG 25 DI 5B30 31 Analog Voltage Input Modules Narrow Bandwidth esses 25 DESCRIPTION 3 2 121 2 Inc E Here Eo re titel otii ED Ro ot eet ee s e I ansi 25 Ordering Information siss nage dade eae 25 DI 5B32 Analog Current Input Modules eese nennen ener 26 DESCRIPTION ositos 4 tc e eines Ep ep Eo aise eestor las 26 Ordering Information 2 sins at casa aan aa edn Dude e E UE ege 26 DI 5B33 Isolated True RMS Input Modules eese enne nennen 27 DESCRIPTION ot e ER eet ala ertet ares 27 Ordering Information o ree rae tenet eder eats oh E esse 27 DI 5B34 Linearized 2 or 3 Wire RTD Input Modules oooonconnncnconnocononononcnoncnano no nono nonnnonnn cnn ccnnccn nacos 28 DESCRIPTION 5 eret ree e eet ee PCR ee PEARL IR RES cr ERN RETE DH eaor e SEEEN ee en a 28 Ordering Information mina astas 28 DI 5B35 Linearized 4 Wire RTD I
12. channel and double click the left mouse button to enable O a pair of differential channels for differential operation this allows you to see the difference between 2 differ ential input channels A plus sign is displayed in the desired channel box indicating one differential chan nel and a minus sign is automatically displayed eight channels away 1 e channels 1 and 9 2 and 10 5 and 13 etc indicating the other differential channel You can select the first or positive channel from 1 through 8 but the second or negative channel is automatically selected by the software Clicking the left mouse button on the plus sign removes both plus and minus signs and thus disables the channel pair This configuration is useful anytime you need to monitor the difference between two differential input channels For example say you are monitoring the temperature of a long narrow widget You want the widget to be of uniform temperature throughout its entire length You could use two thermocouples one per channel on each end of the wid get to monitor temperature The temperature of one end of the widget would be measured by one thermocouple and the temperature of the other end of the widget would be measured by the other thermocouple However in the differ ential channel pair configuration as described above only the difference between the two thermocouples would be reported by WINDAQ software This difference in temperature could then be used t
13. mouse button to enable the e channel as a differential input when not using 5B modules or as an input defined by the 5B module when used A check mark is displayed in the desired channel box indicating that a differential input when not using 5B modules or an input defined by the 5B module when used has been enabled A second activation removes the check mark and thus disables the channel On this instrument the plus sign and the check mark both mean the channel is enabled as a differential input when not using 5B modules or as an input defined by the 5B module when used Clicking or double clicking with the left mouse button accomplishes the same result differential channel pairs are not supported on this instrument Digital inputs are not supported on this instrument Enabling Channels for Acquisition 21 DI 500 510 Series and DI 750 760 Series Hardware Manual DI 500 32 X and DI 750 32 X Instruments When using expansion instruments always enable the master instrument channels first Channels 1 through 32 of the DI 500 32 X can then be enabled after the master instrument channels For example say you are using a DI 510 32 as a master and the DI 500 32 X as a slave You would enable channels 1 through 32 of the DI 500 32 X on row B Channel Selection Channels 12345 67 8 DI 500 MUX A If slaved to a DI 500 16 enable channels here If slaved to a 3
14. the second row from the top row MUX A Channel Selection Channels E EL 3 A A E 12345678901234567890123456789012 DI 500 MUX A Enable DI 510 32 channels here Enable first 32 slave instrument channels here Click to select check or deselect Double click to select differential Click right to select digital input 1 MUX letters occupy the expansion inputs When other instruments are connected as a slave to the DI 510 32 their channels are enabled starting with row B and C etc when more than 32 channels are multiplexed Using an ordinary pencil label the DI 510 32 channels by writing the letter from the grid in the box on the instrument panel overlay i e place an A in the box to designate channels A1 through A32 Do the same for any slave instruments in your configuration but use B C D etc Point to the box in the grid that represents the desired channel and click the left mouse button to enable the channel as a differential input when not using 5B modules or as an input defined by the 5B module when used A check mark is displayed in the desired channel box indicating that a differential input when not using 5B modules or an input defined by the 5B module when used has been enabled A second activation removes the check mark and thus disables the channel On this instrument the plus sig
15. 0 C 32 F to 300 C 572 F OV to 5V 0 40 C Includes conformity hysteresis and repeatability CSA certification pending 5B Modules 31 DI 500 510 Series and DI 750 760 Series Hardware Manual DI 5B36 Potentiometer Input Modules DESCRIPTION Each DI 5B36 Potentiometer input module provides a single channel of Potentiometer input which is filtered iso lated amplified and converted to a high level analog voltage output see block diagram This 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 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 Excitation for the potentiometer is 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 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 90
16. 2 channel master enable channels here Click to select check or deselect Double click to select differential Click right to select digital input 1 MUX letters occupy the expansion inputs Using an ordinary pencil label the DI 500 32 expander channels by writing the letter from the grid in the box on the instrument panel overlay i e place a B in the box to designate channels B1 through B32 channel as a differential input when not using 5B modules or as an input defined by the 5B module when used A check mark is displayed in the desired channel box indicating that a differential input when not using 5B modules or an input defined by the 5B module when used has been enabled A second activation removes the check mark and thus disables the channel Qs Point to the box in the grid that represents the desired channel and click the left mouse button to enable the On this instrument the plus sign and the check mark both mean the channel is enabled as a differential input when not using 5B modules or as an input defined by the 5B module when used Clicking or double clicking with the left mouse button accomplishes the same result differential channel pairs are not supported on this instrument Digital inputs are not supported on this instrument Enabling Channels for Acquisition 22 DI 500 510 Series and DI 750 760 Ser
17. 50 760 Series Hardware Manual DI 5B33 Isolated True RMS Input Modules DESCRIPTION Each DI 5B33 True RMS input module provides a single channel of AC input which is converted to its True RMS dc value filtered isolated amplified and converted to a standard process voltage or current output see block diagram 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 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 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 computer side circuitry reconstructs filters and converts the signal to industry standard outputs Modules are powered from 5VDC 45 For current output models an external loop supply is required having a compliance voltage of 14 to 48VDC Connec tion with series load is between Pin 20 and Pin 19 i Isolation Barrier Surge Suppression and Protection Iso Chopper II Amplifie
18. A to 20mA 1V to 5V 5B Modules 36 DI 500 510 Series and DI 750 760 Series Hardware Manual DI 5B43 Isolated DC Transducer Amplifier Input Module DESCRIPTION Each DI 5B43 displacement transducer module provides a single channel of displacement transducer input which is filtered isolated scaled and converted to a high level analog voltage output see block diagram This 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 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 The DI 5B43 can interface to DC displacement 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 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 feature offers signifi cant flexibility in real world applications Ten full sca
19. Control Library with built in documentation 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 Inc Connecting the Instrument to your Computer DI 500 510 and DI 750 760 Series instruments use your computer s parallel or printer port to interface digital and analog signals to your computer Installation is as simple as connecting the provided communications cable to your computer 1 Plug the appropriate end of the supplied communications cable to the 25 pin female connector labeled PRINTER PORT on the DI 500 510 or DI 750 760 Series instrument 2 Connect the other end of the cable to your computer s parallel port PRINTER PORT connector supplied cable Getting Started 5 DI 500 510 Series and DI 750 760 Series Hardware Manual Applying Power Use the following procedure to apply power to your DI 500 510 or DI 750 760 Series instrument 1 Plug the five pin DIN end of the power adapter to the connector labeled POWER INPUT on the instrument power adapter POWER INPUT jack 2 Plug one end of the supplied power cord into the power adapter and the other end into any standard 120VAC 60Hz single phase outlet power cord power adapter If an
20. DATAQ Iv J INSTRUMENTS The way PC based instrumentation should be DI 500 510 Series Portable Analog and Digital I O System DI 750 760 Series Desktop Rackmount Analog and Digital I O System User s Manual Manual Revision F Software Release Level 1 Copyright 2005 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 SE DATAQ INSTRUMENTS DATAQ Instruments Inc 241 Springside Drive Akron Ohio 44333 U S A Telephone 330 668 1444 Fax 330 666 5434 Designed and manufactured in the United States of America Warranty and Service Policy
21. ESCRIPTION Each DI 5B40 and DI 5B41 wide bandwidth voltage input module provides a single channel of analog input which is amplified isolated and converted to a high level analog voltage output see block diagram This voltage output is logic switch controlled allowing 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 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 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 to suppress transmission of common mode spikes or surges The module is powered from 5VDC 5 A special input circuit on the DI 5B40 and DI 5B41 modules provides protection against accidental connection of power line voltages up to 240VAC EXC Anti Aliasing i sochopper 20 Filter Amplifier LPF S Maus 4In Surge Pat P
22. alternate power source is to be used refer to the following pin out diagram for power requirements 7 to 30VDC Common 7 to 30VDC Common Common POWER INPUT 7 30VDC 10A MAX 3 Turn the POWER SWITCH to ON Connecting Your Signals On portable DI 500 510 Series instruments all analog input signal connections are made to the sheathed banana jacks or to the screw terminals On desktop DI 750 760 Series instruments all user connections are made to the screw ter minals on the back of the instrument For bare wire signal leads such as thermocouples 1 Insert the bare wire into the desired terminal directly under the screw 2 Tighten the screw by rotating clockwise with a small screwdriver Make sure the screw tightens only Getting Started 6 DI 500 510 Series and DI 750 760 Series Hardware Manual against the signal wire and not the wire insulation Do not overtighten and 3 Tug gently on the signal lead to ensure that it is firmly secured Analog Inputs DI 500 510 and DI 750 760 Series instruments may be configured to connect 16 32 48 or 64 model dependent differential analog channels expandable to 240 channels with optional expansion instruments Analog signals may be connected to the banana jacks or to the screw terminal connectors The high level analog inputs are intended for a full scale measurement range of 10V signal conditioned inputs are intended for a full scale measurement range of 5V if 5B
23. apter tells you how to enable analog channels for recording For example suppose you have analog signals connected to channels 1 through 16 and you want to record all of them Use this procedure to enable channels 1 through 16 for recording 1 Toenable channel configuration VS Click on Channels in the Edit menu What you see on your monitor depends on which instrument you are using DI 500 16 and DI 750 16 Instruments Used Alone The Ch block cursor will blink in the Channels field on the status bar The currently active list of enabled channels are displayed in this field immediately to the left of the cursor initially only channel 1 is enabled for recording currently enabled channels blinking block cursor DI 509 Acquisition File Edit View Scaling amp Help Channels Compress FT 2 Enter the desired channel number and press the ENTER key Repeat for each desired channel This causes the channel number to be displayed in the enabled channels row 3 When all desired channels have been enabled exit the channel configuration routine by pressing any key other than the letters D and I Note that a channel may be removed by typing the channel number preceded by a minus sign For example typing 3 removes channel 3 from the row Note also that channels may not be added after the RECORD mode has been entered Enabling Channels for Acquisition 15 DI 500 510 Series and DI 750 760 Series Hardware Manual
24. asccoctssoonssesscvsctcsonscosccvsssedend tevensdsunsessteseuasceseesssesecessesecssseeeesstess iii F Ir U CNO 1 EME A AAA 1 IS E E A 3 Signal Connections iii A deed 3 Interface Characteristics code Ves pee Ege ee eS ee IRR REPORT RUE 3 Analog Cham lsianani ai A A E 3 All Analog Inputs dite iie tendida 3 High Level Analos Inputs xiii ee d ede reto 3 Signal Conditioned Analog Inputs eese eene ener nnne tnnt entren nnne 3 Analog Outputs aero dee eere eco E nec REUS e epe EL ri EE ERES ea 4 Digital Input Output veis perite use Pi ae t ie erii E EE eo E Rete tees ilta Do Het iste d 4 Input Scan Tisto isi cia o Hace e PED E ai Obr e ds 4 O tput Scan List 4 id deer ee Lente Avatar a seem dit neal eile tect aati 4 SENS is seas P 4 Power Requirements A as counts dusk tea e S EN AR Ee UNE 4 Physical Environmerntal ceca ere eee ette meti teer eet eee iere iere de ead 4 A M di 5 Unpackins E E AEE E E AO e 5 Connecting the Instrument to your Computer sees ener nre netten ersten 5 Applying POWet uen Ee ie E UP ro p eti io e a Po Het t et ee ede os eie ead 6 Connecting Your Signals iic ecole pode Ld pe reete 6 Amal Inputs ere ete eet aed ee tet dt tee te reek Melt Secs e raves 7 Connecting a Differential Amplifier enne nennen ren rennen eene 7 Ground referenced Signal Sources esee ener e
25. dB at 50Hz Two poles of this filter are on the field side of the isolation barrier and the other four are in the output stage After the initial field side filtering the input signal is chopped by a proprietary chopper circuit Isolation is pro vided by transformer coupling again using a proprietary technique to suppress transmission of common mode spikes or surges The module is powered from 5 VDC 5 A special input circuit on the DI 5B36 module provides protection against accidental connection of power line volt ages up to 240VAC Potentiometer z i Isolation Barrier Iso Chopper ll Amplifier Pat Pending Surge Suppression and Protection Current Isolated Field Side Power Oscillator Ordering Information MODEL INPUT RANGE OUTPUT RANGE DI 5B36 01 0 to 1000 OV to 5V DI 5B36 02 0 to 5000 OV to 5V DI 5B36 03 0 to 1kQ OV to 5V DI 5B36 04 0 to 10kQ OV to 5V 5B Modules 32 DI 500 510 Series and DI 750 760 Series Hardware Manual DI 5B38 Strain Gage Input Modules Narrow amp Wide Bandwidth DESCRIPTION Each DI 5B38 Strain Gage input module provides a single channel of Strain Gage input which is filtered isolated amplified and converted to a high level analog voltage output see block diagram This voltage output is logic switch controlled which allows these modules to share a common analog bus without the requirement of external multip
26. either WINDAQ or the ActiveX Control Library to tell these inputs apart label each bank of 32 inputs with a letter according to the following table an ordinary pencil is sufficient If you are using this instrument by itself not multiplexed then write this letter in the box on the overlay with other instruments DI 750 16 DI 500 16 not required DI 750 32 DI 500 32 A DI 760 32 DI 510 32 A DI 760 48 DI 510 48 not required DI 760 64 DI 510 64 A top 32 channels B bottom 32 channels Getting Started 9 DI 500 510 Series and DI 750 760 Series Hardware Manual For example in the previous 64 channel example the first or top bank of 32 channels now become channels A1 through A32 and the second the bottom bank on portable models bank of 32 channels become channels B1 through B32 Enter A Here Enter B Here Bi DATAQ INSTRUMENTS MAT Model DI 760 64 1 ela o 4x2 4h pe oc xo o Rom 0 e 2 oo a o ox e os o s ora o mo som d jp EXPANSION OUT EXPANSION IN 17 18 19 20 21 22 28 24 mom ou rm Rum om Ro s BR Raro tuf taro u rf faro amp S V 0 t ho hs oso Vo No tuo us tus HR ho oSv SS uv NS us The channel 28 ambiguity disappears the channel in question is either channel A28 or channel B28 Note that the above table is for stand alone in
27. els are enabled starting with row B and C etc when more than 32 channels are multiplexed Using an ordinary pencil label the DI 500 32 channels by writing the letter from the grid in the box on the instrument panel overlay i e place an A in the box to designate channels A1 through A32 Do the same for any slave instruments in your configuration but use B C D etc Point to the box in the grid that represents the desired channel and click the left mouse button to enable the channel as a differential input when not using 5B modules or as an input defined by the 5B module when used A check mark is displayed in the desired channel box indicating that a differential input when not using 5B modules or an input defined by the 5B module when used has been enabled A second activation removes the check mark and thus disables the channel On this instrument the plus sign and the check mark both mean the channel is enabled as a differential input when not using 5B modules or as an input defined by the 5B module when used Clicking or double clicking with the left mouse button accomplishes the same result differential channel pairs are not supported on this instrument Digital inputs are not supported on this instrument Enabling Channels for Acquisition 18 DI 500 510 Series and DI 750 760 Series Hardware Manual DI 510 32 and DI 760 32 Instruments Ignore the top row Channels through 32 are enabled on
28. ence Common Mode Voltage The most common of these is different physical locations of the computer and signal ground points Since wire is not a perfect conductor i e exhibiting zero resistance regardless of length a voltage drop however small will always Getting Started 7 DI 500 510 Series and DI 750 760 Series Hardware Manual be present The differential amplifier is unique in its ability to measure signals originating from sources with different ground potentials relative to the computer providing it is connected properly WRONG APPROACH Circulating currents in signal shield induce noise on signal of interest DI 500 Input Differential Amplifier Signal Source Lead Shield Ground loop caused by circulating currents 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 This problem is eliminated by ensuring that only one ground exists on the signal circuit RIGHT APPROACH One ground on the signal circuit eliminates noise inducing ground loops DI 500 Input Differential Amplifier Signal Source Lead Shield Potential difference no path for current to circulate Getting Started 8 DI 500 510 Series and DI 750 760 Series Hardware Manual Signal Cable and the Differential Amplifier
29. ending Suppression IVA and Protection 4V V 1 Es 1 0 Common Q nO eY 4O Va 5 RD EN EXC Isolated Computer Side Power Backpanel Term Block 1 NC 2 NC Isolated Field Side Power Oscillator Power Common Ordering Information MODEL INPUT RANGE OUTPUT RANGE DI 5B40 01 10mV to 10mV OV to 5V DI 5B40 02 50mV to 50mV OV to 5V DI 5B40 03 100mV to 100mV OV to 5V DI 5B40 1042 v to 1V OV to 5V DI 5B41 01 IV to 1V OV to 5V DI 5B41 02 5V to 45V OV to 5V DI 5B41 03 10V to 10V OV to 5V DI 5B41 07 20V to 20V OV to 5V DI 5B41 09 40V to 40V OV to 5V Required for DI 500 HV high voltage option 5B Modules 35 CSA certification pending DI 500 510 Series and DI 750 760 Series Hardware Manual DI 5B42 2 Wire Transmitter Interface Modules DESCRIPTION Each DI 5B42 2 wire transmitter interface module provides a single channel which accepts a 4 to 20 mA process cur rent input and provides a standard 1 to 5V output signal see block diagram An isolated 20VDC regulated power supply is provided to power the current transmitter This allows a 2 wire loop powered transmitter to be directly connected to the DI 5B42 without requiring an external power supply The regulated supply will provide a nominal 20VDC at a loop current of 4mA to 20mA The DI 5B42 will provide a 1500V isolation barri
30. er for non isolated 2 wire field transmitters It can also be used when additional isolation is required between an isolated 2 wire transmitter and the input stage of the control 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 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 A precision 20W current conversion resistor is supplied with the module All field inputs are fully protected from accidental connection of power line voltages up to 240VAC The module has a 3dB bandwidth of 100Hz Signal fil tering is accomplished with a six pole filter with two poles on the field side of the isolation barrier and the other four on the computer side 2 Wire Transmitter 1 Isolation Barrier 1 1 Iso Chopper II Amplifier Pat Pending Isolated Excitation Isolated E Field Side Power i Isolated V s System Side L Power Ordering Information MODEL INPUT RANGE OUTPUT RANGE DI 5B42 01 4m
31. esired the output switch can be turned on continuously by simply connecting pin 22 the Read Enable pin to I O Common pin 19 A precision 20W 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 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 provided by transformer coupling again using a proprietary technique to suppress transmission of common mode spikes or surges The module is powered from 5 VDC 5 A special input circuit on the DI 5B32 modules provides protection against accidental connection of power line volt ages up to 240VAC Suppression ira 20 Amplifier gt V out Surge Lv V V 19 gt 1 0 Common Protection el A 22 Isolated RD EN Computer Side Power Xf 0 1 plug in Termination Block AAA i Y Y Y amp Nc 2 lt no V T Isolated Power Ey V Field Side Oscillator Power Common Ordering Information MODEL INPUT RANGE OUTPUT RANGE DI 5B32 01 4mA to 20mA OV to 5V DI 5B32 02 OmA to 20mA OV to 5V 5B Modules 26 DI 500 510 Series and DI 7
32. gain using a proprietary technique to suppress transmission of common mode spikes or surges The module is powered from 5VDC 5 A special input circuit on the DI 5B35 modules provides protection against accidental connection of power line volt ages up to 240VAC Linearizer d V out Amplifier 19 Surge 9 1 0 Common Suppression Y ds P de ti ES RD EN rotection C5 t V V A A ES Isolated Computer Side nud Power 4 Wire 1 G NC Termination 2 Block ge NC EY aV Cry NOTE 1 4 wire sensors may be used with this module However for true 4 wire V 5V measurement use DI 5B35 Isolated P V Field Side oer Oscillator Power Common 5B Modules 30 DI 500 510 Series and DI 750 760 Series Hardware Manual Ordering Information MODEL INPUT RANGE OUTPUT RANGE ACCURACY 1000 Pt 0 00385 DI 5B35 01 100 C 148 F to 100 C 212 F OV to 5V 0 46 C DI 5B35 02 0 C 32 F to 100 C 212 F OV to 5V 0 36 C DI 5B35 03 0 C 32 F to 200 C 392 F OV to 5V 0 46 C DI 5B35 04 0 C 32 F to 600 C 1112 F OV to 5V 0 88 C 10Q Cu a 0 004274 DI 5B35C 01 0 C 32 F to 120 C 248 F 10Q at 0 C OV to 5V 0 23 C DI 5B35C 02DI 0 C 32 F to 120 C 248 F 10Q at 25 C OV to 5V 0 23 C 5B35C 03 0 C 32 F to 160 C 320 F 10Q at 0 C OV to 5V 0 32 C 120QNi 0 00672 DI 5B35N 01
33. h Post trigger length Trigger channel Trigger level hysteresis Power Requirements DI 500 and DI 750 Series instruments DI 510 and DI 760 Series instruments Power supply voltage range Physical Environmental Box dimensions Portable Models Desktop Models I O connector Operating environment Component temperature Relative humidity Storage environment Temperature Relative humidity Two 14 bit 1 part in 8192 500 000 samples second max 10V 5mA 0 30 4us 8 each input and output TTL compatible 0 4mA 2 4V 8mA 0 5V 4 7kQ pull up to 5 VDC 240 elements 16 elements 64k samples 64k samples Any channel 8 bit 256 counts 700mA 12VDC typical excluding 5B modules 1000mA 12VDC typical excluding 5B modules 9 to 36VDC 1514 D by 192 W by 712 H 500 models 2012 D by 24 W by 8l4 H 510 models 16 7 D by 16 88 W by 3 5 H both models 1 male 1 female 37 pin D type 0 to 70 C 5 to 90 non condensing 55 to 150 C 5 to 90 non condensing Specifications 4 DI 500 510 Series and DI 750 760 Series Hardware Manual 3 Getting Started Unpacking The following items are included with a typical DI 500 510 or DI 750 760 Series system Verify that you have the following The DI 500 510 or DI 750 760 Series instrument e Communications cable assembly designed to connect the instrument to your computer s parallel or printer port e Power adapter and power cord e ActiveX
34. hat no connection 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 to I O Common pin 19 A special circuit in the input stage of the module provides protection against accidental connection of power line voltages up to 240 VAC Surge Suppression and Protection Threshold Comparator I I i Isolated 1 3 Field Side i Power Isolated s 4 System Side Power E 39 Ordering Information MODEL INPUT RANGE OUTPUT RANGE EXCITATION DI 5B45 01 0 to 500Hz 0 to 45V 5 1Vdc O 8mA DI 5B45 02 0 to kHz 0 to 45V 5 1Vde 8mA DI 5B45 03 0 to 3kHz 0 to 45V 5 1Vde E 8mA DE5B45 04 OtoSkHz Oto 5V 5 1Vdce 8mA DI 5B45 05 0 to 10kHz 0 to 45V 5 1Vdc O 8mA DI 5B45 06 0 to 25kHz 0 to 45V 5 1Vdc 8mA DI 5B45 07 0 to 50kHz 0 to 45V 5 1Vdc 8mA DI 5B45 08 0 to 100kHz 0 to 45V 5 1Vdc 8mA 5B Modules DI 500 510 Series and DI 750 760 Series Hardware Manual DI 5B47 Linearized Thermocouple Input Modules DESCRIPTION Each DI 5B47 thermocouple input module provides a single channel of thermocouple input which is filtered iso lated amplified linearized and converted to a high level analog voltage output see block diagram This voltage out put is logic switch controlled which allows these mod
35. ies Hardware Manual DI 510 32 X and DI 760 32 X Instruments When using expansion instruments always enable the master instrument channels first Channels 1 through 32 of the DI 510 32 can then be enabled after the master instrument channels For example say you are using a DI 510 32 as a master and the DI 510 32 X as a slave You would enable channels 1 through 32 of the DI 510 32 X on row B Channel Selection Channels 12345 67 8 DI 500 MUX A If slaved to a DI 500 16 enable channels here If slaved to a 32 channel master enable channels here Click to select check or deselect Double click to select differential Click right to select digital input 1 MUX letters occupy the expansion inputs Using an ordinary pencil label the DI 510 32 expander channels by writing the letter from the grid in the box on the instrument panel overlay i e place a B in the box to designate channels B1 through B32 channel as a differential input when not using 5B modules or as an input defined by the 5B module when used A check mark is displayed in the desired channel box indicating that a differential input when not using 5B modules or an input defined by the 5B module when used has been enabled A second activation removes the check mark and thus disables the channe
36. instruments support only screw terminal signal connections Refer to the section titled Connecting Your Signals on page 6 for more analog input details SIGNAL CONDITIONING MODULE INTERFACE Allows you to plug DI 5B signal conditioning modules into a channel on the instrument Each DI 5B module filters isolates amplifies converts or otherwise conditions your input signal i e the output from a thermocouple strain gage LVDT etc so it becomes suitable for A D conversion by the DI 500 510 or DI 750 760 Series instrument When a DI 5B module is installed the input signals are conditioned from either the sheathed banana jacks or the screw terminals Note that not all input signals require signal conditioning On instruments with only high level inputs such as the DI 500 32 or DI 750 32 and the DI 510 64 or DI 760 64 these signal conditioning module interfaces are not needed and therefore are covered Getting Started 12 DI 500 510 Series and DI 750 760 Series Hardware Manual SIGNAL CONDITIONING MODULE CHANNEL REFERENCE These numbers indicate the channel where the DI 5B module is installed The channel number is also silk screened on the board but when the module is plugged in you can no longer read the channel number on the board PRINTER PORT The printer port connects the DI 500 510 or DI 750 760 Series instrument to your computer It provides a way to get your signals into your computer Refer to the section titled C
37. ission of common mode spikes or surges The module is powered from 5VDC 5 A special circuit in the input stage of the module provides protection against accidental connection of power line voltages up to 240 VAC Thermocouple Isolation Barrier Iso Chopper II Amplifier Pat Pending Isolated Field Side Power omes CM EP Oscillator Isolated System Side Ordering Information MODEL TYPE INPUT RANGE ACCURACY DI 5B47J 01 Type J 0 C to 760 C 32 F to 1400 F 0 61 C DI 5B47J 02 Type J 100 C to 300 C 148 F to 572 F 0 32 C 5B Modules 40 DI 500 510 Series and DI 750 760 Series Hardware Manual DI 5B47J 03 Type J 0 C to 500 C 4 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 4 32 F to 1832 F 0 80 C DI 5B47K 05 Type K 0 C to 500 C 4 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 4 32 F to 2192 F 0 96 C Includes conformity hysteresis and repeatability Does not include CJC accuracy CSA certification pending 5B Modules 41 Bi 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
38. l 2 Point to the box in the grid that represents the desired channel and click the left mouse button to enable the On this instrument the plus sign and the check mark both mean the channel is enabled as a differential input when not using 5B modules or as an input defined by the 5B module when used Clicking or double clicking with the left mouse button accomplishes the same result differential channel pairs are not supported on this instrument Digital inputs are not supported on this instrument DI 510 64 X and DI 760 64 X Instruments When using expansion instruments always enable the master instrument channels first All 64 channels two rows of 32 of the DI 510 64 X can then be enabled after the master instrument channels For example say you are using a Enabling Channels for Acquisition 23 DI 500 510 Series and DI 750 760 Series Hardware Manual DI 510 64 as a master and the DI 510 64 X as a slave You would enable the first 32 channels of the DI 510 64 X on row C and the second group of 32 channels on row D Channel Selection Channels 12345 67 8 DI 500 MUX A If slaved to a DI 500 16 enable channels on rows Aa If slaved to a 32 channel master enable channels on rows If slaved to a 64 channel master enable channels on rows Click to select check or deselect Double click to select differential Click right to select digital input 1 MUZ letters occupy the expansion inpu
39. le input ranges are provided from 1V to 10V producing 5V full scale output 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 1kHz After amplification the input signal is chopped by a proprietary chopper circuit Isolation is provided by transformer coupling again using a proprietary technique to suppress transmission of common mode spikes or surges The module is powered from 5VDC 5 Special input circuits on the DI 5B43 module provide protection of the signal inputs and the isolated excitation supply up to 240VAC Amplifier y V out ne epee Surge Suppression pores and acceleration etc Protection ps VO Common c Isolated Y Excitation 22 Isolated SRD EN Computer Side Power VW Termination AAA 1 PAN amp NC no 17 V 5V di Isolated P V Field Side ower Power Oscillator ie gt Power Common Ordering Information MODEL MAXIMUM INPUT EXCITATION DI 5B43 01 1V 10 0Vde 40m DI 5B43 02A 2V 10 0Vde 40m DI 5B43 03 3V 10 0Vdc E 40m DI 5B43 04A 4V 10 0Vde 40m DI 5B43 05 5V 10 0Vde 40m 5B Modules 37 DI 500 510 Series and DI 750 760 Series Hardware Manual DI 5B43 06 6V 10 0Vdc 40m DI 5B43 07A 7V 10 0Vdc 40m
40. lexers 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 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 The DI 5B38 can interface to full or half bridge transducers with a nominal resistance of 100W to 10kW A matched pair of bridge completion 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 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 of the excitation voltage Full scale sensitiv ities of 2mV V 3n V V or 10mV V are offered With 10V excitation this results in a 20mV 30mV or 100mV full scale input range On wide bandwidth modules 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 On all modules after initial field side filtering the input signal is chopped by a proprietary chopper circuit Is
41. ly one master instrument The expansion cable is always connected from the EXPANSION OUT port to the EXPANSION IN port of the next instrument moving in a direction away from the PC The DI 500 16 DI 750 16 DI 510 48 and DI 760 48 are master instruments only They can be expanded by adding slave instruments but they can never be used as a slave instrument All of the expansion instruments in the DI 500 510 and DI 750 760 Series i e DI 510 32 X and DI 760 32 X are slave instruments They have no printer port so they can never be configured as a master instrument connected directly to the PC and cannot be used alone they must be connected to a master instrument The DI 510 32 DI 760 32 DI 510 64 and DI 760 64 Instruments can be used as masters or as slaves They can be connected directly to the PC as stand alone master instruments or they can be connected as slave channel expansion Getting Started 10 DI 500 510 Series and DI 750 760 Series Hardware Manual instruments to other masters In either case the expansion cable is connected in the same way from the EXPANSION OUT port to the EXPANSION IN port of the next instrument moving in a direction away from the PC When using several instruments in a master slave configuration label the instruments to avoid confusion Using the same example as above say you have a DI 510 64 64 input portable instrument and a DI 510 64 X 64 input porta ble expansion unit multiplexed togethe
42. module socket is bypassed otherwise the full scale measurement range is determined by the 5B module The maximum input voltage without damage is 30V When needed per channel transducer excitation is built in 5B module dependent eliminating the need for external power supplies Connecting a Differential Amplifier Differential inputs allow the DI 500 510 or DI 750 760 Series amplifier to detect the difference in voltage between the high and low inputs Differential amplifiers have the advantage of reducing common mode voltages 1 e those appearing simultaneously and in phase on both inputs This capability may be leveraged to great advantage to reduce noise riding on a signal of interest Two signal measurement conditions govern configuration of a differential channel input 1 The signal to be mea sured is ground referenced or 2 the signal to be measured is isolated from ground The signal that is isolated from ground requires no special consideration when connecting to a differential amplifier however the ground referenced signal does Ground referenced Signal Sources A ground referenced signal source is one with a local ground that may not be and probably is not at the same poten tial as the computer s ground This potential difference between signal and computer ground is referred to as a com mon mode voltage and is caused by a number of different factors Computer Signal Ground Source Ground Potential Differ
43. n and the check mark both mean the channel is enabled as a differential input when not using 5B modules or as an input defined by the 5B module when used Clicking or double clicking with the left mouse button accomplishes the same result differential channel pairs are not supported on this instrument Digital inputs are not supported on this instrument Enabling Channels for Acquisition 19 DI 500 510 Series and DI 750 760 Series Hardware Manual DI 510 48 and DI 760 48 Instruments Channels 1 through 16 are enabled on the top row of the grid Channels A1 through A32 are enabled on the second row from the top row MUX A Channel Selection Channels 12345 67 9 DI 500 Enable channels 1 through 16 here I MUX A NON Enable channels A1 throuah A32 here PTT TT LET Enable first 32 slave instrument channels here Enable next 32 slave instrument channels here Click to select check or deselect Double click to select differential Click right to select digital input I MUX letters occupy the expansion inputs When other instruments are connected as a slave to the DI 510 48 their channels are enabled starting with row B and C etc when more than 32 channels are multiplexed Using an ordinary pencil label the expansion channels by writing the letter from the grid in the box on the slave instrument pa
44. n the channel selection grid you no longer have the ability to connect an analog signal to that channel either at the sheathed banana jacks or at the screw terminals DI 510 64 and DI 760 64 Instruments Ignore the top row All 64 channels two rows of 32 are enabled on the second and third rows from the top rows MUX A and B Channel Selection Channels 12345 67 8 DI 500 MUX A Enable first 32 DI 510 64 channels here Enable next 32 DI 510 64 channels here Enable first 32 slave instrument channels here Enable next 32 slave instrument channels here Click to select check or deselect Double click to select differential Click right to select digital input 1 MUX letters occupy the expansion inputs When other instruments are connected as a slave to the DI 510 64 their channels are enabled starting with row C and D etc when more than 32 channels are multiplexed Using an ordinary pencil label the DI 510 64 channels by writing the letters from the grid in the boxes on the instrument panel overlay i e place an A in one box to des ignate channels A1 through A32 and a B in the other box to designate channels B1 through B32 Do the same for any slave instruments in your configuration but use C D etc Point to the box in the grid that represents the desired channel and click the left
45. nel overlay i e place a B in the box to des ignate slave instrument channels B1 through B32 Do the same for any more slave instruments in your configuration using C D E etc Point to the box in the grid that represents the desired channel and click the left mouse button to enable the amp channel as a differential input when not using 5B modules or as an input defined by the 5B module when used A check mark is displayed in the desired channel box indicating that a differential input when not using 5B modules or an input defined by the 5B module when used has been enabled A second activation removes the check mark and thus disables the channel Point to the box in the grid that represents the desired channel and double click the left mouse button to enable a pair of differential channels for differential operation this allows you to see the difference between 2 differ ential input channels A plus sign is displayed in the desired channel box indicating one differential chan nel and a minus sign is automatically displayed eight channels away 1 e channels 1 and 9 2 and 10 5 and 13 etc indicating the other differential channel You can select the first or positive channel from 1 through 8 but the second or negative channel is automatically selected by the software Clicking the left mouse button on the plus sign removes both plus and minus signs and thus disables the channel pair This configuration is
46. nne nre 7 Signal Cable and the Differential Amplifier eese nennen 9 Labeling Analog Input Channels eese enemies 9 Increasing the Total Analog Input Channel Capacity eee 10 The DE500 Series Inistr ment iii ita 12 ANALOG INPUTS oeecteeeeteeret eerte rer ree EHE EFE e eo Eee Pre d tee tea iv ee ene eh 12 SIGNAL CONDITIONING MODULE INTERFACE eerte eene 12 SIGNAL CONDITIONING MODULE CHANNEL REFERENCE eer 13 PRINTER PORT 4 ttt dtt bee ee e ie d fe et Deseo Pec Einer 13 STATUS LAMPS 3 nite i te ie P n lees pae pibe eb b ot eben end ce ee baa 13 POWER SWITCH 5 nra d eoe t e tg P ROO pe tto 13 POW ERINPUTIACK dro en et ee ER a Dd ote nn euet deae eaea 13 EXPANSION IN and EXPANSION OUT or AUXILIARY PORT and EXPANSION Conns 13 Installing the SoftWare PP od eta te Hei Let Hoi ege Leben co ego ined ev ego 14 4 Enabling Channels for Acquisition eee ee esee ee eee eere ee eoe setae seen ae tasse tenete aa conse s eaae essa 15 DI 500 16 and DI 750 16 Instruments Used Alone eese 15 All Other DI 500 510 and DI 750 760 Series Instruments seen 16 DI 500 16 and DI 750 16 Instruments Used with Slaves sese 16 DI 500 32 and DI 750 32 Instruments eese eene nennen neret nennen 18 DI 510 32 and DI 760 32 Instruments eese nennen enne tne 19 DI 510 48
47. nnel s you are ready to install and run the software There are two software approaches for DI 500 510 and DI 750 760 Series instruments writing developing your own acquisition review and analysis programs or using WINDAQ software For the programmers who will be writing their own acquisition review and analysis programs DATAQ Instruments Inc provides an ActiveX Control Library free with every DATAQ Instrument purchased The ActiveX Control Library is installed automatically when you install any version of WINDAQ software and comes with its own built in documentation For non programmers or for those who want convenience DATAQ Instruments Inc provides WINDAQ software WINDAQ is easy to use ready to run data acquisition review and analysis software for the Windows environ ment WINDAQ Lite recording and playback software is included free with every DATAQ Instrument purchase WINDAQ Lite recording software is limited to 16 channels and 240 Hz maximum throughput when you enter the record mode If you do not want to program and your application does not require more than 16 channels or a recording throughput more than 240 Hz then you will want to install WINDAQ Lite software Find the WINDAQ Lite software package manuals and CD ROM and proceed with the installation instructions contained therein Getting Started 14 DI 500 510 Series and DI 750 760 Series Hardware Manual 4 Enabling Channels for Acquisition This ch
48. nput Modules eese nennen 30 DESCRIPTION sessa 2 noe dee e Sees apa ii edt dere i ese ioter eie ege E E S 30 Ordering Information ud tete eee eet Het oie St eso ent s cete denda 31 DI 5B36 Potentiometer Input Modules eese eren nennen nentes 32 DESCRIPTIONS eot ete tee eoe ee na emt etae e dete dee ee 32 Ordering Information nete tee t td Pe EP es e Pe Ee reas te 32 DI 5B38 Strain Gage Input Modules Narrow amp Wide Bandwidth esses 33 DESCRIPTION 5 eei vertice ettet tote et Tete dee Ee He RR aA a east S ed reete bee e eas 33 Ordering Information siss aa dnte p ote ected cet eee iere ee ee n dede 34 DI 5B40 41 Analog Voltage Input Modules Wide Bandwidth eee 35 DESCRIPTION 0 HERB ehe e A ep D e ee antec ts 35 Ordering Information ssl ele e tele te ot ie e De afskrifa 35 DI 5B42 2 Wire Transmitter Interface Modules esee rennen 36 DESCRIPTION xmi nete cet i ka nett eee ee en Dip ia Deo eese nl 36 Ordering Information n pe etie epe reside ree Rr incio o 36 DI 5B43 Isolated DC Transducer Amplifier Input Module sene 37 DESCRIPTION siss neces acea da 37 Ordering Information xark dee dee iie te ee el ee 37 DI 3B45 Frequency Input Modules i ia ie tinet e e Retro e aie 39 DESCRIPTION iet Shake Rn E ER AR ER SFr AR tu Een DR etudes 39 Ordering Information asian eee eet aee eee 39 DI 5B47 Linea
49. o control a process i e if one end 1s 5 hotter than the other then turn on a heater to evenly distribute the widget temperature channel as a digital input An T is displayed in the desired channel box indicating that a digital input has been enabled Pointing to the T and clicking the left mouse button removes the T and thus disables the channel The digital inputs are connected to the 37 pin AUXILIARY PORT connector on the DI 500 16 instrument Note that when you specify a channel as a digital input in the channel selection grid you no longer have the ability to connect an analog signal to that channel either at the sheathed banana jacks or at the screw terminals D Point to the box in the grid that represents the desired channel and click the right mouse button to enable the Enabling Channels for Acquisition 17 DI 500 510 Series and DI 750 760 Series Hardware Manual DI 500 32 and DI 750 32 Instruments Ignore the top row Channels through 32 are enabled on the second row from the top row MUX A Channel Selection Channels Enable first 32 slave instrument channels here Click to select check or deselect Double click to select differential Click right to select digital input I MUX letters occupy the expansion inputs When other instruments are connected as a slave to the DI 500 32 their chann
50. olation is provided by transformer coupling again using a proprietary technique to suppress transmission of common mode spikes or surges The module is powered from 5 VDC 5 Special input circuits on the DI 5B38 module provide protection of the signal inputs and the isolated excitation sup ply up to 240VAC Strain Gage Isolation Barrier Iso Chopper II Amplifier Pat Pending Isolated Field Side Power Isolated TV System Side Power 5B Modules 33 DI 500 510 Series and DI 750 760 Series Hardware Manual Ordering Information MODEL INPUT INPUT RANGE EXCITATION OUTPUT RANGE BRIDGE TYPE DI 5B38 31 or DI 5B38 01 Full Bridge 100 2to 10kQ 3 333V at 3m V V Sensitivity 5V to 5V DI 5B38 32 or DI 5B38 02 Full Bridge 3002 to 10kQ 10 0V at 3m V V Sensitivity 5V to 5V DI 5B38 33 or DI 5B38 03 Half Bridge 100 2to 10kQ 3 333V at 3m V V Sensitivity 5V to 5V DI 5B38 34 or DI 5B38 04 Half Bridge 3000 to 10kQ 10 0V at 3mV V Sensitivity 5V to 45V DI 5B38 35 or DI 5B38 05 Full Bridge 300Q to 10kQ 10 0V at 2mV V Sensitivity 5V to 5V DI 5B38 36 or DI 5B38 06 Full Bridge 100 2to 10kQ 3 333V at 10mV V Sensitivity 5V to 45V DI 5B38 37 or DI 5B38 07 Full Bridge 3000 to 10kQ 10 0V at 10mV V Sensitivity 5V to 5V 5B Modules 34 DI 500 510 Series and DI 750 760 Series Hardware Manual DI 5B40 41 Analog Voltage Input Modules Wide Bandwidth D
51. on text to jump to page Data Acquisition Data Logger Chart Recorder Thermocouple Oscilloscope
52. onnecting the Instrument to your Computer on page 5 for more printer port details STATUS LAMPS All DI 500 510 and DI 750 760 Series instruments except the expansion instruments have two status lamps POWER This indicator glows green when power is applied ACTIVE This indicator glows red whenever the computer is actively addressing the instrument This includes all digital input output analog output and analog input functions The expansion instruments in the DI 500 510 and DI 750 760 Series only have the POWER status lamp POWER SWITCH Controls power to the DI 500 510 and DI 750 760 Series instrument Refer to the section titled Applying Power on page 6 for more power switch details 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 for the DI 500 510 or DI 750 760 Series instrument 9 36VDC 10A max Refer to the section titled Applying Power on page 6 for more power input jack details EXPANSION IN and EXPANSION OUT or AUXILIARY PORT and EXPANSION Con nectors In addition to channel expansion the 37 pin connectors labeled AUXILIARY PORT and EXPANSION on DI 500 16 DI 750 16 DI 510 48 and DI 760 48 instruments or EXPANSION IN and EXPANSION OUT on all other instruments also provide access to digital inputs and outputs Pinout is as follows DI 500 16 DI 750 16 DI 510 48 and DI 760 48
53. otebook or laptop PC compat ible computer e Per channel software configurable settings Input gain Signal Averaging Input and output measurement range e 250kHz burst sampling to minimize channel skew e Eight each digital input and output lines e A D subsystem provides 14 bit resolution e D A subsystem provides 14 bit resolution e Programmed I O PIO data transfers e Signal averaging of up to 32 768 consecutive readings per channel Introduction 1 DI 500 510 Series and DI 750 760 Series Hardware Manual 2 Specifications Signal Connections All portable instruments allow dual access analog input signal connections Connect your input signals to the sheathed banana jacks or to the screw terminals Digital inputs and outputs are accessible from the 37 pin AUXIL IARY PORT connector on DI 500 16 DI 750 16 DI 510 48 and DI 760 48 instruments only All desktop and rack mounted instruments support screw terminal input signal connections only no sheathed banana jacks Interface Characteristics Compatible computer architecture Any PC architecture Connects to computer via the parallel or printer port Supports standard bi directional or EPP parallel ports Analog Channels DI 500 16 DI 750 16 16 signal conditioned channels DI 500 32 DI 750 32 32 high level channels DI 510 32 DI 760 32 32 signal conditioned channels DI 510 48 DI 760 48 16 signal conditioned channels and 32 high level channels DI 510
54. r Pat Pending Isolated Field Side System Side 3 Isolated V Power LPF Ordering Information MODEL INPUT RANGE OUTPUT RANGE DI 5B33 01 100mV OV to 5V DI 5B33 02 IV OV to 5V DI 5B33 03 10V OV to 5V DI 5B33 04 150V OV to 5V DI 5B33 05 300V OV to 5V 5B Modules 27 DI 500 510 Series and DI 750 760 Series Hardware Manual DI 5B34 Linearized 2 or 3 Wire RTD Input Modules DESCRIPTION Each DI 5B34 RTD input module provides a single channel of RTD input which is filtered isolated amplified lin earized and converted to a high level analog voltage output see block diagram This voltage output is logic switch controlled which allows these modules to share a common analog bus without the requirement of external multiplex ers 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 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 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 ve
55. r and want to record the signal connected to channel 28 Looking at the instru ments there are four groups or banks of 32 inputs each bank consisting of channels 1 through 32 128 total inputs Since there are a total of four channels labeled 28 how will you know which one will be recorded A small box is provided on the instrument panel to label banks of channels and avoid this problem In order for you and the software either WINDAQ or the ActiveX Control Library to tell these inputs apart label each bank of 32 inputs with a letter according to the following table an ordinary pencil is sufficient If you are using this instrument as the then write this letter in the box on the slave instrument s overlay for MASTER instrument the first 32 channels the next 32 channels the next 32 channels DI 750 16 DI 500 16 A B C DI 750 32 DI 500 32 B C D DI 760 32 DI 510 32 B C D DI 760 48 DI 510 48 B C D DI 760 64 DI 510 64 C D E For example in the previous 128 channel example the 64 master instrument channels now become channels A1 through A32 and B1 through B32 and the 64 slave instrument channels now become channels C1 through C32 and D1 through D32 The channel 28 ambiguity disappears the channel in question is either channel A28 B28 C28 or D28 Getting Started 11 DI 500 510 Series and DI 750 760 Series Hardware Manual The DI 500 Series Instrument The following describes the u
56. rized Thermocouple Input Modules eene 40 DESCRIPTION trib tette et etti etn roe mite t dee t Galena 40 Ordering Information ig ere dti e brasier i Pad cere e gestus 40 Table of Contents vi DI 500 510 Series and DI 750 760 Series Hardware Manual Introduction Congratulations on your purchase of a DI 500 510 or DI 750 760 Series data acquisition measurement system These instruments permit data acquisition on IBM personal computers and compatibles from the Windows environment This manual describes how to connect and use the DI 500 510 and DI 750 760 Series instruments From an opera tional point of view all of the instruments are approximately the same Throughout the majority of this manual enough similarity exists to describe each instrument with the same procedure The conventions used to describe these universal applications are DI 500 Series which means that the procedure information applies equally to the DI 500 16 DI 500 32 DI 510 32 DI 510 48 DI 510 64 or any of the channel expansion instruments DI 750 Series applying to the DI 750 16 and DI 750 32 and DI 760 Series applying to the DI 760 32 DI 760 48 and DI 760 64 In cases where the resemblance is not equal separate procedures descriptions exist for each instrument Features The DI 500 510 and DI 750 760 Series offers the following features Complete portability Connects to the parallel port of any desktop transportable n
57. ry small 0 25mA for 100W Pt and 120W Ni and 1 0mA for 10W Cu which minimizes self heating of the RTD 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 provided by transformer coupling again using a proprietary technique to suppress transmission of common mode spikes or surges The module is powered from 5VDC 5 A special input circuit on the DI 5B34 modules provides protection against accidental connection of power line volt ages up to 240 VAC 3 and 4 Wire Linearizer E d V out EXC 19 29 1 0 Common Surge Suppression Y ad P fect RD EN rotection gt 1 V V A A S Isolated Computer Side Power 4 Wire V 1 amp nc Termination 2 Block NC VYYY V 4V aaa NOTE 1 4 wire sensors may be used with this module However for true 4 wire V 4 45V measurement use DI 5B35 Isolated Power V Field Side Oscillator Power Power Common Ordering Information MODEL INPUT RANGE OUTPUT RANGE ACCURACY 1002 Pt 0 00385 DI 5B34 01 100 C 148 F to 100 C 212 F OV to 5V 0 46 C DI 5B34 02 0 C 32
58. ser accessible items on the DI 500 510 or DI 750 760 Series instrument Analog Inputs Analog Inputs sheathed banana jacks screw terminals HH JL HL HHH Printer Port HA HH AHHH HHH P RORT BE Rep ka Cars LLES Kosia KA LOLE Active Lamp e MLILILIJLA Signal Conditioning o ld L LJ UJ Ud Module Interface Aa e Power Lamp not used on Power Switch e LILILILIL all instruments POWER SWITCH e MMLILILILA Power Input Jack s z 2 Q E FS s T 2 Q gt LAS TELERID UJ O LJILILILIL WT O HHHH TOA MAX o LJILILILIL eo LILILILIJIL NEC CES ES SES VES VER EY Rn In 0 o EXPANSION Signal Conditioning Auxilary Port LJLILILJILJLUJLO Module Interface not used on E UT UI HT HH all instruments Expansion Out or LILILILILUJILIL EXPANSION Expansion O T Y o s E N N o TX Y oo o X N i s ag w 2 s 2 s I w bs OUT EX31 EX Model Y 1 510 32 P Model DI 510 32 shown here other instruments similar ANALOG INPUTS The analog inputs allow you to connect your input signals to the instrument All portable instruments in the series allow dual access connections either to the sheathed banana jacks or to the screw terminals All desktop and rack mounted
59. struments only If you have several DI 500 510 or DI 750 760 Series instruments multiplexed together refer to the following section for labeling information Increasing the Total Analog Input Channel Capacity The 37 pin connectors labeled AUXILIARY PORT and EXPANSION on DI 500 16 DI 750 16 DI 510 48 and DI 760 48 instruments or EXPANSION IN and EXPANSION OUT on all other instruments are used for system expansion Additional DI 500 510 and DI 750 760 Series instruments can be daisy chained together to increase channel capacity Up to 240 analog channels can be acquired by connecting combinations of DI 500 510 and DI 750 760 Series instruments together The following illustration shows a typical 128 channel configuration consisting of a DI 510 64 64 input portable instrument and a DI 510 64 X 64 input portable expansion unit To Printer Port of PC DI 510 64 DI 510 64 X Printer Port 7 Expansion IN 4 Expansion IN Expansion OUT Expansion OUT Master Slave When several instruments are connected together one instrument becomes the master instrument and all others become slave instruments The master is always defined as the instrument connected directly to the PC A slave is defined as an instrument that is connected to the master or not connected directly to the PC Note that it is possible to have any number of slave instruments in a configuration up to 240 total channels but always on
60. ts Using an ordinary pencil label the DI 510 64 expander channels by writing the letters from the grid in the boxes on the instrument panel overlay i e place a C in one box to designate channels C1 through C32 and a D in the other box to designate channels D1 through D32 Point to the box in the grid that represents the desired channel and click the left mouse button to enable the channel as a differential input when not using 5B modules or as an input defined by the 5B module when used A check mark is displayed in the desired channel box indicating that a differential input when not using 5B modules or an input defined by the 5B module when used has been enabled A second activation removes the check mark and thus disables the channel On this instrument the plus sign and the check mark both mean the channel is enabled as a differential input when not using 5B modules or as an input defined by the 5B module when used Clicking or double clicking with the left mouse button accomplishes the same result differential channel pairs are not supported on this instrument Digital inputs are not supported on this instrument Enabling Channels for Acquisition 24 DI 500 510 Series and DI 750 760 Series Hardware Manual 5 5B Modules DI 5B30 31 Analog Voltage Input Modules Narrow Bandwidth DESCRIPTION Each DI 5B30 and DI 5B31 voltage input mod
61. ule provides a single channel of analog input which is filtered iso lated amplified and converted to a high level analog voltage output see block diagram This voltage output is logic switch controlled allowing these modules to share a common analog bus without the requirement of external multi plexers 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 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 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 provided by transformer coupling again using a proprietary technique to suppress transmission of common mode spikes or surges The module is powered from 5 VDC 5 A special input circuit on the DI 5B30 and DI 5B31 modules provides protection against accidental connection of power line voltages up to 240VAC EA 20 ES Amplifier gt V out d i V V
62. ules 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 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 The DI 5B47 can interface to eight industry standard 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 external 47MW resistor 20 tolerance between screw terminals and 3 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 provided by transformer coupling again using a proprietary technique to suppress transm
63. useful anytime you need to monitor the difference between two differential input channels For example say you are monitoring the temperature of a long narrow widget You want the widget to be of uniform temperature throughout its entire length You could use two thermocouples one per channel on each end of the wid get to monitor temperature The temperature of one end of the widget would be measured by one thermocouple and the temperature of the other end of the widget would be measured by the other thermocouple However in the differ ential channel pair configuration as described above only the difference between the two thermocouples would be reported by WINDAQ software This difference in temperature could then be used to control a process 1 e if one end is 5 hotter than the other then turn on a heater to evenly distribute the widget temperature Point to the box in the grid that represents the desired channel and click the right mouse button to enable the O channel as a digital input An T is displayed in the desired channel box indicating that a digital input has been enabled Pointing to the T and clicking the left mouse button removes the T and thus disables the Enabling Channels for Acquisition 20 DI 500 510 Series and DI 750 760 Series Hardware Manual channel The digital inputs are connected to the 37 pin AUXILIARY PORT connector on the DI 510 48 instrument Note that when you specify a channel as a digital input i

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