DBK48 - Measurement Computing
Contents
1. CABLE CA 208 The following applies to customers using a CA 208 instead of a CA 208 3 cable Users of CA 208 3 are to ignore this material If the DBK48 is not connected to a Daq device via the P1 connector then remove the Rnets from S01 and S02 These resistor networks connect each 8B module s output to the multiplexer for P1 DO NOT connect the CA 208 cable directly to the Signal Output connector First connect a CA 35 18 cable to the DB25 then connect the CA 208 to the CA 35 18 cable Both cables are required BNC Connector CHI CH 2 CH 3 CH 4 CH 5 CH 6 CH 7 CH 8 Banana Plug CA 208 CA 35 18 Wiring Diagrams Use the two cables CA 208 and CA 35 18 as follows 1 Connect the CA 35 18 expansion cable to DBK48 s 25 pin Signal Output connector Connect DB25 end of the CA 208 cable to the CA 35 18 expansion cable Connect the CA 208 analog common banana plug to the local ground of the measuring equipment a Connect the CA 208 BNC connectors for channels 1 through 8 to the measuring equipment 8B Isolated Signal Conditioning Module 967792 DKB48 pg 19 This page is intentionally blank DBK48 pg 20 967792 8B Isolated Signal Conditioning Module2. can then enter the values of m and b into the appropriate location using the facilities provided by compatible data acquisition software for example WaveView DaqView Personal DaqView LogView and TempView The software uses equation 9 to calculate signal values in engineering units from that point on 8B Isolated Signal Conditioning Module 967792 DKB48 pg 15 Specifications DBK48 Name Function DBK48 16 slot Multi Purpose Isolated Signal Conditioning Module Operating Environment Temperature 30 C to 70 C Relative Humidity 95 RH non condensing Connectors System Connector DB37 male mates with P1 connector on primary acquisition device Note 1 Signal Connector DB25 5V output signals from the 8B modules Power Connectors Two DIN5 connectors Power In and Power Out for daisy chaining Input Connections 8 sets of removable screw terminal blocks each with 6 connection points as follows 1 channel voltage in V in V in 1 channel excitation E E Note 2 2 channel voltage in V in V in Shunt Resistor Socket RO through R15 plug in resistor sockets One socket per channel for current loop inputs Cold Junction Sensor Enabled or disabled per channel via jumpers JPO through JP15 8B Module Capacity o Up to 16 voltage input o Up to 16 thermocouple o Upto 8 modules which require excitation i e strain gauge potentiometer RTD See latest catalog or contact your sales representative i
3. 0 05 Bipolar CHOO 06 Bipolar CHO0 07 Bipolar CHOO D8 Bipolar CHO0 09 Bipolar CHOO 10 Bipolar CHOO 11 Bipolar CHOD 12 Bipolar CHO0 13 Bipolar CHOO 14 Bipolar CHOO 15 Bipolar CHOI Bipolar CHO2 Bipolar CHO Bipolar CHO4 Bipolar CHOS Bipolar CHOB Bipolar CHO Bipolar CHOS AAA ee ee ey AAA epee DaqView Configuration Main Window mX b an Example The Customize Engineering Units dialog box can be Configure Engineering Units accessed via the Dag View Configuration main window by activating the Units cell for the desired Units Label Ih OK channel then clicking to select mX b Op Cancel M 1 000 B 0 000 From the Customize Engineering Units dialog box see figure at right you can enter values for m and b components of the equation that will be applied to the data There is also an entry field that allows you to enter a label for the new units that may result from the mX b calculation An example of mX b equation use follows DBK48 pg 14 967792 8B Isolated Signal Conditioning Module Engineering Units Conversion Using mx b Most of our data acquisition products allow the user to convert a raw signal input for example one that is in volts to a value that is in engineering units for example pressure in psi The products accomplish this by allowing the user to enter scale and offset numbers for each input channel using the software associated with the product Then the
4. 0 Ohm Pt with an Input Range of 0 C to 100 C For SC 8B47 T 07 select SC 5B47 T 07 as both are a Type T Thermocouple with an Input Range of 0 C to 200 C Reference Note o For DaqView information refer to chapter 3 DBK Setup in Dad View and to the DaqView PDF included on your data acquisition CD o For LogView information refer to chapter 4 DBK Setup in LogView and to the LogView section of the LogBook PDF included on your data acquisition CD Also see above note o The API includes functions applicable to the DBK48 Refer to related material in the Programmer s Manual p n 1008 0901 as needed PDF Note During software installation Adobe PDF versions of user manuals automatically install onto your hard drive as a part of product support The default location is in the Programs group which can be accessed from the Windows Desktop Refer to the PDF documentation for details regarding both hardware and software Note that you can also access PDF documents directly from the data acquisition CD via the lt View PDFs gt button on the CD s opening screen 8B Isolated Signal Conditioning Module 967792 DKB48 pg 13 28 DaqView DAQVIEW DAQ DagBook2k1 Fie Edit Data Window Device Help ne EEN gt Mw Ke ve Channel Setup Acquisition Setup Data Destination Analog Scanned Digital Inputs gp Module 8835 01 100 00 C 2639 04 100 100 E ESE 600 C ES S 5 a l Bipolar CHO
5. 40 V O to 5V B31 12 SC 8B31 13 60 V 0 to 5V Current Input Modules 3 Hz Input Range Output Range SC 8B32 01 4 to 20 mA O to 5V Linearized 2 wire or 3 wire RTD Modules 0 to 5V Output 3 Hz BW Type 1000 Pt RTD Available June 2005 Input Range in C SC 8B34 01 100 C to 100 C 148 F to 212 F SC 8B34 03 0 C to 200 C 32 F to 392 F Potentiometer Input Modules 0 to 5V Output 3 Hz BW Available June 2005 Part No Input Range Output Range SC 8B36 01 0 to 1000 U to 5V SC 8B36 03 0 to 1 kO 0 to 5V Specifications are subject to change without notice 8B Isolated Signal Conditioning Module 967792 DKB48 pg 17 Voltage Input Modules 1 kHz BW Part No SC 8B40 01 SC 8B40 03 SC 8B41 02 B41 02 SC 8B41 04 1 05 SC 8B41 06 TE SC 8B41 08 SC 8B41 10 1 SC 8B41 13 Input Range Output Range 10 mV 100 mV 5V to 5V O to 5V O to 5V O to 5V O to 5V Linearized Thermocouple Input Modules 0 to 5V Output 3 Hz BW Part No SC 8B47 J 01 SC 8B47 J 03 SC 8847 K 04 SC 8B47 K 1 3 SC 8B47 T 06 Type Input Range in C 0 C to 760 C 0 C to 500 C 0 C to 1000 C 100 C to 1350 C 100 C to 400 C Specifications are subject to change without notice DBK48 pg 18 967792 32 F to 1400 F 32 F to 932 F 327F to wras 148 F to 2462 F 148 F to 752 F 8B Isolated Signal Conditioning Module A NOTE FOR USERS OF
6. DBK48 Multipurpose Isolated Signal Conditioning Module Supports up to Sixteen 8B Modules Description 1 Safety Concerns 2 Hardware Setup 2 Installing 8B Modules 4 Installing Plug in Resistors to Create 4 to 20 mA Loops 5 Making Terminal Block Connections 6 Setting DBK48 Module Addresses 7 Configuring the Primary Data Acquisition Device 8 CE Compliance 9 Connecting the DBK48 to the Primary Data Acquisition Device 9 Using the DB25 Signal Output Connector 10 Powering the System 13 Software Setup 13 Specifications 16 Description The DBK48 module can accommodate up to sixteen 8B isolated input signal conditioning modules for use with Daq systems A single cable connects the DBK48 output to the P1 analog input connector on the primary device One Daq system can support up to 16 DBK48 modules providing a total of 256 isolated analog input channels The A D converter scans the DBK48 channels at the same 5 us channel rate that it scans all other channels from DBK series analog expansion and signal conditioning cards Other features of DBK48 include e Built in power supply that operates from 10 to 30 VDC and can power a full complement of 8B modules even with bridge excitation e Removable plug in screw terminal blocks for convenient connection of 8B modules e On board cold junction sensing for thermocouple 8B modules e For each 8B modul
7. S E Y Lee Es CH CH1 BV 0 to 5V x 150 CHS a CH2 Ms COM 17 cmo V es ru wis 18 CH11 lt Y a 7 19 COM n cha He7 ID 20 ema V CH 5VPWR Ge el 21 pen e COM di ll 10 23 cHi4 Y v T 51 24 CH15 CH7 e12 5 No Connection o e13 ol V 8B Module Bottom View DB25 DB25 SIGNAL OUTPUT Pinout with JMP3 JMP4 JMP3 Installed This configuration brings all 16 channel outputs to the DB25 Signal Output Connector 8B Isolated Signal Conditioning Module 967792 DKB48 pg 11 Bringing Eight 8B Module Outputs to the DB25 Signal Output Connector SIGNAL OUTPUT With 3 jumper networks installed one per socket in JMP1 JMP2 and JMP6 the signal output connector is pinned out as shown in the following figure This only brings the outputs of eight of the 8B modules i e Ch 0 2 4 6 8 10 12 and 14 When the Signal Output connector 1s pinned out in this manner it can be used with a CA 208 3 cable to bring the 8 channels out to the cable s BNC connectors for easy connection to other measuring equipment Jumpers installed at JMP1 JMP2 and JMP6 5V Signal Out Be Module E 7 COM from 8B Modules CHO 5V O to 5V 5VPWR CHO 1 CH2 2 CHA e3 Pins 14 thru 21 COM CH6 4 C CH8 5 N COM CH10 6 CH12 He S5VPWR Gris s i ZR 22 thru 24 9 thru 13 Not Not Connected Connected COM T 8B Module Bottom View CONNECTS TO DB25 CA 208 3 NOTE 1 DB25 SIGNAL OUTPUT Pinout wit
8. configuration of jumpers JP1 and JP4 These jumpers are located on the DaqBook 100 Series 200 Series devices and DaqBoard ISA type board 1 If not using auxiliary power set the JP1 jumper for Analog Option Card Use also referred to as the expanded analog mode Note These jumpers do not apply to 2000 Series Devices single Ended Analog Option Factory Default Card Use Required Jumper Settings in DaqBook 100 Series amp 200 Series and ISA Type DaqBoards The JP1 default position above is necessary to power the interface circuitry of the DBK48 via the internal 15 VDC power supply If using auxiliary power e g DBK32A or DBK33 you must remove both JP1 jumpers For additional information refer to Power Requirements in the DBK Basics section and to the DBK32A and DBK33 sections as applicable 2 For DaqBook 100 DaqBook 112 and DaqBook 120 only place the JP4 jumper in the single ended mode DaqBook 2000 Series DaqBoard 2000 Series DaqLab and DaqScan No jumper configurations are required on these Daq devices in regard to connecting a DBK48 LogBooks No jumper configurations are required on LogBook devices in regard to connecting a DBK48 DBK48 pg 8 967792 8B Isolated Signal Conditioning Module CE Compliance If your data acquisition system needs to comply with CE standards the DBK48 must be connected to the LogBook or Dag device by a CA 143 x cable In addition the CE compliant operating conditions m
9. ction to the chassis and treatment of adjacent inputs as potentially hazardous Input cables must be rated for the isolation potential in use Line voltage ratings are much lower than the DC isolation values specified due to transients that occur on power lines Never remove the cover unless all inputs with potentially hazardous voltages are removed The cover must be securely screwed on during use Some things to remember e Properly tighten all chassis screws before system use e Never plug in or unplug potentially hazardous connections with power applied to any connected equipment e Never attempt to change 8B modules or remove the cover plate while power is applied to the DBK48 You could short out internally exposed circuits and cause personal injury or equipment damage e Disconnect power all equipment and signal lines from the DBK4 8 prior to installing 8B modules Reference Note Refer to user manual that is associated with your primary Daq device DBK48 pg 2 967792 8B Isolated Signal Conditioning Module Hardware Setup POWER POWER POWER SWITCH i ADDRESS ED S a DEFUALT JUMPER LOCATIONS 0 bi IHS JHP4 IMPS L l L R 7 f A i E fe 9 per T 5 uiz S singh H E 22 ISIS We 8 Jalela su ANS al d a ICONO R y SE 8 5 THE Be E E a WARNING Turn Power Off before installing modules oH a a E e Z ep Z pones Z ous rower az Sean Brom routs ou
10. e 250 V isolation from the system and from other channels Typical of each 2 Channel Block BV Signal Out from 8B Modules User Installed Current Shunt T A V E Za 8B ALV l Module D p Connects to Primary Data Acquisition Address Device Selection From GH 2 14 thru CH 15 4 Note 1 Only channels 0 2 4 6 8 10 12 and 14 can be connected to excitation For example in the above block diagram Channel 0 could be connected to Excitation Channel 1 could not 5 Excitation Voltage DC to DC i DC l l Converter Power In Note 2 Each channel can accept a plug in resistor to serve as a current shunt In the above diagram Channel 0 has a current shunt installed Channel 1 does not Only current input type modules require the plug in resistors The plug in resistors must be removed for all other module types DC Power Out 8B Isolated Signal Conditioning Module 967792 DKB48 pg 1 Safety Concerns WARNING Shock Hazard Voltages above 50 Vrms AC and voltages above 100 VDC are considered hazardous Safety precautions are required when 8B modules are used in situations that require high voltage isolation from the rest of the system Failure to practice electrical safety precautions could lead to injury or death DBKA8 has a 250 VDC isolation specification This is in a normal environment free of conductive pollutants and condensation The 250 VDC rating requires a proper earth ground conne
11. e multiplexer for P1 Up to sixteen 8B modules can be installed onto the DBK48 circuit board The preceding figure indicates module locations To install 8B modules l gt oo ot ey DBK48 pg 4 Turn off power to the DBK48 and all connected modules and devices Disconnect power all equipment and signal lines from the DBK48 prior to installing 8B modules Be aware that isolated measurements can present lethal voltages Remove the DBK48 top cover plate and set aside Align the 8B module s retaining screw and pins with the holes in the circuit board see figure Gently press the module into place Tighten the retaining screw snug but DO NOT OVERTIGHTEN Repeat steps 3 4 and 5 for each additional module Return and secure the cover plate to the unit 967792 8B Isolated Signal Conditioning Module Installing Plug in Resistors to Create 4 to 20 mA Loops with 8B Voltage Input Modules WARNING Electric shock hazard Turn off power to the DBK48 and all connected modules and devices before inserting or removing resistors Failure to do so could lead to injury or death due to electric shock The discharge of static electricity can damage some electronic components Semiconductor devices are especially susceptible to ESD damage You should always handle components carefully and you should never touch connector pins or circuit components unless you are following ESD guidelines in an appropriate ESD controlled ar
12. ea Such guidelines include the use of properly grounded mats and wrist straps ESD bags and cartons and related procedures Current Shunt Resistors Location of Shunt Resistor Plug In Shown with shunt resistors plugged in for Channel 0 at RO and Channel 2 at R2 Only voltage input type modules require the plug in shunt resistors The plug in resistors must be removed for all other module types including current input type Inputs to monitor the commonly used 4 to 20mA current loops most often employ a 250Q precision resistor to develop a 1 to 5 VDC voltage drop Ideally a resistor for such purpose should have a 0 1 tolerance or better with a minimum power rating of 0 25W and a temperature coefficient of at least 25ppm C Lower values of resistance for example 62 5Q for a lower voltage drop within the loop of 0 25 to 1 25 VDC will require that the host data acquisition device use a gain of x4 to maximize the signal resolution To create a 4 to 20mA current loop 1 Turn off power to the DBK48 and all connected modules and devices 2 Disconnect power all equipment and signal lines from the DBK4 8 prior to installing the resistors Be aware that isolated measurements can present lethal voltages 3 Remove the DBK48 top cover plate and set aside 4 Carefully plug the shunt resistor into the applicable plug in location for the designated channel for example RO for Channel 0 R1 for Channel 1 R2 for Channel 2
13. etc Repeat for each channel as applicable DO NOT solder the shunt resistors in place Only voltage input type modules require these resistors The plug in resistors must be removed for all other module types including current input type 5 Reinstall the DBK48 top cover plate and secure in place 8B Isolated Signal Conditioning Module 967792 DKB48 pg 5 Making Terminal Block Connections Input signals and excitation when applicable are wired to removable terminal blocks Eight such blocks can accept 2 channel inputs each However only channels 0 2 4 6 8 10 12 and 14 can be connected to excitation Thus the DBK48 is limited to 8 strain gages or 8 RTDs as only the even numbered channels can be connected to excitation Each terminal block connects to a signal conditioning module within the DBK48 The blocks accept up to 14 gage wire into quick connect screw terminals Wiring schematics are provided below for RTDs thermocouples 20 mA circuits voltage mV and V and for full bridge and half bridge strain gages WARNING Shock Hazard The DBK48 is designed to sense signals that may carry dangerous voltages De energize circuits connected to the DBK48 before changing the wiring or configuration TIOS Only current input type modules require the plug in resistors The plug in resistors must be removed for all other module types V V In SONO O SOSO0a l Vip TYE E Reo De i Resistor in DBK48 EXC KN A
14. h JMP1 JMP2 JMP6 Installed This configuration brings channel 0 2 4 6 8 10 12 and 14 outputs to the DB25 Signal Output Connector If the DBK48 is not connected to a Daq device via the P1 connector then remove the Rnets from S01 and S02 These resistor networks connect each 8B module s output to the multiplexer for P1 Use the CA 208 3 cable as follows 1 Connect the DB25 end of the CA 208 3 cable directly to DBK48 s 25 pin Signal Output connector 2 Connect the CA 208 3 analog common banana plug to the local ground of the measuring equipment 3 Connect the CA 208 3 BNC connectors for channels 1 through 8 to the measuring equipment Note 1 CA 208 3 connects directly to the signal output connector However another cable which looks virtually the same is the CA 208 with no 3 extension If you are using a CA 208 you must first connect a CA 35 18 cable to the DB25 connector on the DBK48 then connect the CA 208 to the CA 35 18 cable For CA 208 users a wiring diagram is provided immediately following the DBK48 specifications section DBK48 pg 12 967792 8B Isolated Signal Conditioning Module Powering the System The DBK48 contains an internal power supply The unit can be powered by an AC power adapter or any 10 to 30 VDC source such as a 12 V car battery For portable or field applications DBK48 and the primary Daq device can be powered by a DBK30A rechargeable battery module or DBK34 vehicle UPS mod
15. n 9 aus rs Ke pq a p a Al gt k nl r y T l ON A h gt Za nn K E e k a q ql l rg EA Ay H 1 i LE a 3 za i e AH mae POS a L L k f l l 1 l ed 3 lo h LI E Lol 2 ot EN et en LP rea eater 2 STe sls s CEDE El ld IO Pa TOA Ba da bh i E ARE EAS C ee T DBK48 Circuit Board Layout 8B Isolated Signal Conditioning Module 967792 DKB48 pg 3 Installing 8B Modules WARNING Electric shock hazard Turn off power to the DBK48 and all connected modules and devices before inserting or removing modules Failure to do so could lead to injury or death due to electric shock Handle the 8B module carefully while inserting pins into the circuit board Do not over tighten the mounting screw The discharge of static electricity can damage some electronic components Semiconductor devices are especially susceptible to ESD damage You should always handle components carefully and you should never touch connector pins or circuit components unless you are following ESD guidelines in an appropriate ESD controlled area Such guidelines include the use of properly grounded mats and wrist straps ESD bags and cartons and related procedures If the DBK48 is not connected to a Daq device via the P1 connector then remove the Rnets from S01 and S02 These resistor networks connect each 8B module s output to th
16. n regard to the types of 8B Modules available for your application Power Requirements 10 to 30 VDC or 120 VAC with AC to DC adapter With 16 thermocouple type modules 0 03 amps each 10 VDC 0 30 A 15 VDC 0 20 A 25 VDC 0 12 A With 8 strain gage type modules 0 2 amps each 10 VDC 1 000 A 15 VDC 0 667 A 25 VDC 0 400 A Power Consumption 750 mW from P1 typical 15V 25mA Channel to Channel Settling 0 05 typical at 200kHz 0 025 typical at 100kHz DC Input Fuse 2 Amp Mini ATO Fuse FU 8 2 Littelfuse 297 002 at board location F3 Isolation Input Power to System 250 VDC Signal Inputs to System 250 VDC Input Channel to Channel 250 VDC Dimensions 285 mm W x 220 mm D x 45 mm H 11 x 8 5 x 1 75 Weight 1 13 kg 2 5 Ib with no modules installed Note 1 If attachment to the primary device is through a 100 pin P4 connector a DBK200 series adapter must be used to obtain the mating P1 connector Note 2 Input devices that require excitation can only be connected to the following channels 0 2 4 6 8 10 12 14 The odd numbered channels do not connect to excitation DBK48 pg 16 967792 8B Isolated Signal Conditioning Module 8B Module Ranges Voltage Input Modules 3 Hz BW Part No Input Range Output Range SC 8B30 01 10 mV 5V SC 8B30 03 100 mV SC 8B31 02 5 V SC 8B31 04 1 V O to 5V SC 8B31 06 10 V O to 5V 8831 0 20 z SC 8B31 08 20 V O to 5V SC 8B31 10
17. software uses these numbers to convert the raw signals into engineering units using the following mx b equation 1 Engineering Units m Raw Signal b The user must however determine the proper values of scale m and offset b for the application in question To do the calculation the user needs to identify two known values 1 the raw signal values and 2 the engineering units that correspond to the raw signal values After this the scale and offset parameters can be calculated by solving two equations for the two unknowns This method 1s made clear by the following example Example An engineer has a pressure transducer that produces a voltage output of 10 5 volts when the measured pressure 1s 3200 psi The same transducer produces an output of 0 5 volt when the pressure is 0 psi Knowing these facts m and b are calculated as follows A Write a pair of equations representing the two known points 2 3200 m 10 5 b 3 0 m 0 5 b B Solve for m by first subtracting each element in equation 3 from equation 2 4 3200 0 m 10 5 0 5 b b 5 Simplifying gives you 3200 m 10 6 This means m 320 C Substitute the value for m into equation 3 to determine the value for b 7 0 320 0 5 b 8 Therefore b 160 Now it 1s possible to rewrite the general equation 1 using the specific values for m and b that we just determined 9 Engineering Units 320 Raw Signal 160 The user
18. t module may occur Configuring the SIGNAL OUTPUT The signal output connector on the rear panel of the DBK48 can be configured in one of two ways via jumper networks that are placed in sockets JMP1 2 3 4 5 and 6 JMP1 JMP2 vA L LLL LL 66006509000 40000000 400400000 YEN TILIIN L LR RE R LL JNPS JMP6 40000000 40000000 1606000000 M0000000 setts R39 O a Signal Output Configuration Jumpers as Oriented on PCB DBK48 pg 10 967792 8B Isolated Signal Conditioning Module Jumper Assignments DSUB14 DSUB15 DSUB16 DSUB17 DSUB21 DSUB12 COM 50 10 16 JMPI JMP2 JMP3 DSUB2 DSUB5 DSUBS For JMP1 through JMP6 DSUB16 DSUB19 DSUB22 DSUB11 CCHx DSUB13 CCH8 DSUB14 DSUB15 DSUB17 DSUB18 CCH10 Single ended I O channel of 8B Module DSUB24 50 10 16 COM DSUB25 DSUBx Pin x of the DB25 Signal Output connector JMP4 50 10 16 JMPS and JMP6 Bringing all Sixteen 8B Module Outputs to the DB25 Signal Output Connector SIGNAL OUTPUT With three CA 19 8 jumper networks installed one per socket in JMP3 JMP4 and JMP5 the signal output connector is pinned out as shown in the following figure This brings the outputs of all sixteen 8B modules to the 25 pin DSUB Signal Output connector on the rear panel 5V Signal Out 8B Module C2 COM Bottom View from 8B Modules CHO 5V 0 to 5V O Jumpers installed at SVPWR JMP3 JMP4 and JMP
19. ule The supply input is fully isolated from the measurement system If the fuse requires replacement use a 2 Amp Mini ATO Fuse factory part number FU 8 2 Littelfuse 297 002 POWER IN POWER OUT 10 DC TO 30 DC P41 POWER SIGNAL OUTPUT pee APP SERIAL NO 8421 DBK48 Rear Panel DBK48 s internal power supply supplies power to the 8B modules only The DINS Power Out connector is a pass through to allow for a power daisy chain Prior to daisy chaining from one modules power connector to another be sure to compute the power consumption for the entire system Some modules may need independent power adapters See chapter 2 for information regarding power supply issues Software Setup You will need to set several parameters so Daq View can best meet your application requirements After the 8B module type is identified Dad View figures out the m and b of the mx b equation for proper engineering units scaling An example of the mx b equation follows shortly LogView does not include the means to directly select the DBK48 To use a DBK48 and its 8B modules with LogBook Select DBK42 in LogView This will recognize the DBK48 but will identify it as a DBK42 For each 8B module select the 5B module that exhibits the same measurement ranges three examples follow For SC 8B30 01 select SC 5B30 01 as both have an Input Range of 10 mV and an Output Range of 5V For SC 8B34 02 select SC 5B34 02 as both are Type 10
20. ule 967792 DKB48 pg 9 Using the DB25 Signal Output Connector Important Notes Regarding the Signal Output Connector The signal output connector on the rear panel of the DBK48 can be used to directly measure the output voltage of each 8B module This applies to input type modules 1 e volts millivolts thermocouple potentiometer frequency strain gage RTD etc POWER IN POWER OUT 10 DC TO 30 DC POWER SIGNAL OUTPUT E ADDRESS SERIAL NO 8421 DBK48 Rear Panel The signal output connector can also be used with output type 8B modules e g current output and voltage output In this case a voltage is applied to the signal output connector This voltage is converted to an isolated current or isolated voltage by the 8B module which is installed in that channel The isolated current or voltage 1s available on the front panel terminal block Be careful when mixing 8B input modules and 8B output modules If possible do not mix 8B input modules and 8B output modules within the same DBK48 When applying voltages to the rear panel signal output connector for 8B output modules it can be easy to short to an adjacent pin on the 25 pin DSUB connector If there is an 8B input module on that channel damage may occur to that 8B module If a voltage source is being applied to a front panel terminal block for an 8B input type module and there is an 8B output type module mistakenly installed in that channel damage to the 8B outpu
21. ust be met as specified on the DBK48 module s Declaration of Conformity card which is shipped with the module refer to the following o the DBK48 Declaration of Conformity o the CE Compliance section of Signal Management chapter of this manual x Reference Notes If your data acquisition system needs to comply with CE standards Connecting the DBKA48 to the Primary Data Acquisition Device Connect the DBK48 module as follows Note that if your system needs to be CE Compliant be sure to read the preceding CE Compliance section prior to connecting the DBK48 1 Fora single DBK48 module connect one end of the P1 cable to the module s male DB37 output connector e For DaqBook applications use a CA 37 x cable or a CA 255 xT cable e For DaqBoard 2000 Series or 2000c Series boards use a CA 37 x with a DBK200 Series adapter e For DaqBoard ISA type boards use a CA 131 x cable CA 37 x and CA 131 x cables do not meet CE compliance requirements Refer to the preceding CE section if CE compliance must be met 2 Connect the free end of the cable to the P1 port of the LogBook or Daq device For multiple DBK48 modules use a CA 37 x or CA 131 x cable to daisy chain several modules or an expansion module For example three DBK48 modules could be connected to a LogBook or a Daq device via a CA 37 3 cable Note For longer cable runs you can use a CA 113 cable to add 6 ft of length 8B Isolated Signal Conditioning Mod
22. y on board socket CH 0 has a 2 wire connection to an RTD CH 0 is shown not connected CH 1 is shown not connected CH 1 is connected to a current shunt resistor resulting in a 4 to 20 mA current loop DBK48 pg 6 967792 8B Isolated Signal Conditioning Module Setting DBK48 Module Addresses Up to sixteen DBK48 modules can be attached to a single LogBook or Daq device Each DBK48 module must have a unique channel address because they connect to the primary data acquisition device via parallel interface Adjustment of the channel address must only be performed when the system power is OFF Failure to do so may result in equipment damage To assign a channel address to the DBK48 module first locate the DIP switch on the right side of the rear panel Four micro switches on the DIP switch are used to set the module s channel address in binary After ensuring that the system power is OFF adjust the micro switches to set the desired address The 16 possible addresses are illustrated in the following figure Each module in the system must have a unique primary device channel address 15 The 16 Possible Address Settings for DBK48 Modules 8B Isolated Signal Conditioning Module 967792 DKB48 pg 7 Configuring the Primary Data Acquisition Device DaqBook 100 Series 200 Series and DaqBoard ISA type Configuration Use of a DBK48 with a DaqBook 100 Series 200 Series devices or with an ISA type DaqBoard requires the
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