Omega Speaker Systems OME-DB-889D User's Manual
Contents
1. OME A 82X OME DB 889D 16 OME DB 889D k3 icm 90 90 erie SARAR SEE A D Channel 0 OME DB 889D 1 A D Channel 1 OME DB 889D 2 BENE AD a OME DB 889D n AD oME DB 889D a n OME DB 889D 10 anu Note Each OME DB 889D JP17 place on X 1 2 3 OME DB 889D User s Manual 17 4 4 Open Thermocouple Detection The OME DB 889D provides open thermocouple detection through a resistor circuitry These resisters are normally not connected The user can find on the back of the board has two solder gaps for each input channel If you short the solder gaps the open thermocouple detection is enabled HJO 100MQ gD w els 1 2KQ Channel 0 High 50V Channel 0 Low 1 2KQ LIO 10KQ 37Pin Cable Note If a thermocouple opens the bias resistor will slowly pull the input voltage to 10V then user can use a simple application program to detect the voltage change OME DB 889D User s Manual 18 4 5 Block Diagram OME A482X Analog ihput OME DB 889D Block Diagram CNI connect to OME A 82x series multi function card CN2 connect to CN1 of another OME DB 889D CN3 connect to OME A 82x series digital output CN4 connect to CN3 of another OME DB 889D AMP programmable gain amplifier PGA PGA off set adjustment VR2 CJC gain adjustmen2. output and the CJC output A D CH7 7 A D CH8 COQUE 8 Note means channels are not OO OO ADCH 66 00 9 supported by the OME A 82Xseries OME DB 889D User s Manual 5 2 2 3 JP19 Internal External Power selection The OME DB 889D requires single 5V power supply the connector CN5 are used for the external power supply connection The OME A 82X series multi function card offers 5V power from the 37 pin connector The OME DB 889D can be directly from the PC I O bus by connecting the OME A 82Xseries multi function card JP19 From PC s 5V Power From the CN5 input External 5V power Default Setting 2 2 4 JP18 Local Remote Gain control The OME DB 889D provides local and remote control and the selection depends on the setting of the switch SW1 JP18 ofo o O OJO L R L R Remote Gain Control Local Gain Control Default Setting Note L Local Gain control from OME DB 889D on board dip switch setting Remote Gain control from OME A 82X series A D card digital output control OME DB 889D User s Manual 6 Remote Gain Control When the JP18 is set to R it means Remote Gain Control is selected and the gain is controlled by the digital signal of connector CN3 bit D4 D5 D6 The bit pattern and related gain is illustrated as 100 500 1000 Swl 2 OME DB 889D User s Manual 2 3 Pin Assignment The OME DB 889D provides two 37pin D Sub connector amp two 20
3. Shop online at www omega com e mail info omega com OME DB 889D 16 Channel Analog Multiplexer Board OMEGAnet Online Service Internet e mail www omega com info omega com USA ISO 9001 Certified Canada Servicing North America One Omega Drive P O Box 4047 Stamford CT 06907 0047 TEL 203 359 1660 FAX 203 359 7700 e mail info omega com 976 Bergar Laval Quebec H7L 5A1 Canada TEL 514 856 6928 FAX 514 856 6886 e mail info omega ca For immediate technical or application assistance USA and Canada Mexico Benelux Czech Republic France Germany Austria United Kingdom ISO 9002 Certified Sales Service 1 800 826 6342 1 800 TC OMEGA Customer Service 1 800 622 2378 1 800 622 BEST Engineering Service 1 800 872 9436 1 800 USA WHEN TELEX 996404 EASYLINK 62968934 CABLE OMEGA En Espa ol 001 203 359 7803 e mail espanol omega com FAX 001 203 359 7807 info omega com mx Servicing Europe Postbus 8034 1180 LA Amstelveen The Netherlands TEL 31 0 20 3472121 FAX 31 0 20 6434643 Toll Free in Benelux 0800 0993344 e mail sales amp omegaeng nl Frystatska 184 733 01 Karvin Czech Republic TEL 420 0 59 6311899 FAX 420 0 59 6311114 Toll Free 0800 1 66342 e mail info omegashop cz 11 rue Jacques Cartier 78280 Guyancourt France TEL 33 0 1 61 37 29 00 FAX 33 0 1 30 57 54 27 Toll Free in France 0800 466 342 e mai
4. 1 Voltage TO Temperature Conversion The temperature versus voltage relationship of a the thermocouple is not linear You can reference the thermocouple reference tables to get V to T values Or use temperature conversion equation to get V to T values Temperature Conversion Equation 0 al x a2 x 2 a3 x 3 a4 4 x n where T Temperature x Thermocouple Voltage a Polynomial coefficients unique to each thermocouple n Maximum order of the polynomial TYPE E TYPE J TYPEK TYPER TYPE S a0 100 to 1000 C 0 C to 760 C 0 C to 1370 C 0 C to 1000 C 0 C to 1750 C 160 C to 400 C al 0 104967248 0 048868252 0 226584602 0 263632917 0 927763167 0 100860910 17189 45282 19873 14503 24152 10900 179075 491 169526 5150 25727 94369 3 a2 a3 a4 a5 C 12695339 5 11569199 78 2210340 682 1 90002E3 8990730663 78025595 81 448703084 6 264917531 4 860963914 9 4 82704E 12 1 63565E 12 9247486589 6 9 i 10 HI ar 1372416116 as inseem issons 29oras a oaen ossrosee13 1 sorosest9 282639 0850 218614 5353 67233 4248 48840341 37 31568363 94 767345 8295 10 1 10866E3 2018441314 4 835606E 10 7 62091E 14 1 88027E 14 6 97688E4 18 3 7 1 The thermocouple range of this table is this equat
5. current repair charges Have the following contacting OMEGA information available BEFORE contacting OMEGA 1 Purchase Order number under which the product 1 Purchase Order number to cover the COST was PURCHASED of the repair 2 Model and serial number of the product under 2 Model and serial number of the product and warranty and 3 Repair instructions and or specific problems 3 Repair instructions and or specific problems relative to the product relative to the product OMEGA s policy is to make running changes not model changes whenever an improvement is possible This affords our customers the latest in technology and engineering OMEGA is a registered trademark of OMEGA ENGINEERING INC Copyright 2002 OMEGA ENGINEERING INC All rights reserved This document may not be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form in whole or in part without the prior written consent of OMEGA ENGINEERING INC Where Do Find Everything Need for Process Measurement and Control OMEGA Of Course Shop online at www omega com TEMPERATURE Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies Wire Thermocouple RTD amp Thermistor Calibrators amp Ice Point References A Recorders Controllers amp Process Monitors A Infrared Pyrometers PRESSURE STRAIN AND FORCE Transducers amp Strain Gages Load Cells amp Pr
6. otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on humans Should any Product s be used in or with any nuclear installation or activity medical application used on humans or misused in any way OMEGA assumes no responsibility as set forth in our basic WARRANTY DISCLAIMER language and additionally purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product s in such a manner RETURN REQUESTS INQUIRIES Direct all warranty and repair requests inquiries to the OMEGA Customer Service Department BEFORE RETURNING ANY PRODUCT S TO OMEGA PURCHASER MUST OBTAIN AN AUTHORIZED RETURN AR NUMBER FROM OMEGA S CUSTOMER SERVICE DEPARTMENT IN ORDER TO AVOID PROCESSING DELAYS The assigned AR number should then be marked on the outside of the return package and on any correspondence The purchaser is responsible for shipping charges freight insurance and proper packaging to prevent breakage in transit FOR WARRANTY RETURNS please have the FOR NON WARRANTY REPAIRS consult OMEGA following information available BEFORE for
7. 00000 0000000000000000000001000 00 18 ASS BLOCK DIAGRAM 19 5 20 5 1 USING OME A 822PGE eit eter eee ee ete He EE e dee o 20 5 3 EXAMPEE PROGRAM cm Lage aah NAL ote aste Ree ee e 21 6 EE 23 6 1 CALIBRATION VR DESCRIPTION si Tee ER VE estes 23 6 2 CALIBRATION STEPS cccccecssssssececececsessssececececsenssececececseneseseeecsceceessaaeceeeesenesaaeeeeeescseneaaeaeeeeeeeenes 23 OME DB 889D User s Manual 1 OME DB 889D Multiplexer Board 1 Function Description The OME DB 889D is an expansion multiplexer amplifier board for use with OME A 82X 1800 series Each OME DB 889D multiplexes 16 differential analog input channels into one analog input of the DAS board The high grade instrumentation provides software programmable gains of 0 5 1 5 10 50 100 500 and 1000 Thermocouple measurements are handled easily with OME DB 889D The board includes cold junction sensing and compensation circuitry that provides a scaling of 24 4mV C Biasing restores are includes for open thermocouples detentions of voltage measurements or 112 channels of thermocouple measurement 1 1 Features Connects directly to OME A 82X OME PCI 1800 series boards with D sub 37 connectors Cold junction co
8. 16 channel differential inputs Input channel selection is controlled by a CN3 D4 D6 digital output by OME A 82x series multi function card 4 1 Floating Signal Connection The OME DB 889D has only differential input channels each input channel should be two signal wires The input should be connected as ME DB 889 Floating Signal Source 9 Differential signal input OME DB 889D User s Manual 15 4 2 Non Floating Signal Source Some the signal source has one side connect to a local ground The signal ground with OME DB 889D ground will not be same voltage level The input should be show as OME DB 889D Common mode Signal Source EE Common mode signal input OME DB 889D User s Manual 16 4 3 Cascading OME DB 889D 3 Other 8 psi jor pee ug icum 200066 a i j D A m 2 AAA AS err OME A 82X series A D card 20 Pin Flat Cable 1 821 2 OME A 822PGH L power ee 3 OME A 823PGH L 4 OME A 826PGH L 5 PCI 1800PGH L Note PCI 1802 should be via DB 1825 connect to OME DB 889D
9. 6 Analog output channel selection to OME A 82x series A D card JP17 CJC output channel selection to OME A 82x series A D card JP18 Gain control by on board dip switch or digital L by dip switch output of OME A 82x series multi function card R by Digital Digital output JP19 Use PC s 5V or External 5V power OME DB 889D User s Manual 4 2 2 Jumper setup 2 2 1 JPO JP15 Analog Input R C Filter The OME DB 889D provides R C filter with each analog input channel by jumper setting 1 2KQ Channel 0 High luF 50V Channel 0 Low 1 2KQ 0 15 O O Short with filter Default setting 2 2 2 JP16 Analog Output Channel Jumper Open Without filter The OME DB 889D supports 10 separate jumper to select output channel This feature permits up to 10 OME DB 889D s be connected to a 10 channel analog input card Place the jumper in the output channel according to the channel of the analog input card selected for that OME DB 889D board The following table illustrates the jumper setting of using the OME DB 889D with the OME A 82X series 16 17 If none of the output channel is used Analog output CJC output X leave the jumper in position X If A DCHO 0 A D CHI OO d the CJC output is required for the AIDCH2 OO OO 2 thermocouple applications be aware AID CHS 3 OO OO 4 that the analog output and CJC output A D CH5 S E a a 5 share the connector for the analog OO
10. R Switch Setting JP18 should be place on L Remote control Local Control DOS pos swis SWI2 SWI o 0 o ON ON ON os i a ONE ps CANAAN Lo 1 1 on or or 1 it o o OF ON ON Lx ON a 1 o om or ON so it OFF OFF 100 OME DB 889D User s Manual 11 3 3 The Thermocouple Input The OME DB 889D can accept thermocouple sensor to measure temperature The OME DB 889D should be set to different gain value if use different thermocouple type If you are usingOME A 82XPGL series multi function bard to linked OME DB 889D you have got the gain as Gain OME A 82X Gain X OME DB 889D Gain OME A821PGL Gain 1 2 4 8 OME DB 889D Gain 0 5 1 5 10 50 100 1000 Examples OME A 82XPG OME DB Gain L Series 889D EK ANE Ses too 100 100 500 1000 1000 1000 N Thermocouple type amp suitable gain TYPE E TYPE J TYPEK TYPE S TYPE T 270 C to 1000 C 210 C to 760 2709 to 1370 C 0 C to 1760 C 0 C to 17609 270 C to 400 C 9 835mV to 8 096mV to 6 458mV to OmV to OmV to 6 258mV to 76 358mV 42 922mV 54 807mV 21 006mV 18 612mV 20 869mV Gain 50 Gain 100 Gain 200 Gain 200 Gain 200 OME DB 889D User s Manual 12 3 3
11. defects resulting from any action of the purchaser including but not limited to mishandling improper interfacing operation outside of design limits improper repair or unauthorized modification This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion or current heat moisture or vibration improper specification misapplication misuse or other operating conditions outside of OMEGAs control Components which wear not warranted including but not limited to contact points fuses and triacs OMEGA is pleased to offer suggestions on the use of its various products However OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA either verbal or written OMEGA warrants only that the parts manufactured by it will be as specified and free of defects OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER EXPRESS OR IMPLIED EXCEPT THAT OF TITLE AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED LIMITATION OF LIABILITY The remedies of purchaser set forth herein are exclusive and the total liability of OMEGA with respect to this order whether based on contract warranty negligence indemnification strict liability or
12. ere are two VRs on the OME DB 889D Amplifier Offset adjustment CJC Gain adjustment 6 2 Calibration Steps 1 Turn off computer power 2 Connect OME A 822PGL Or any OME A 82x series multi function card to OME DB 889D 3 Setup OME DB 889D to default setting 4 Short CHOHI to CHOLO to A GND of DB889D 5 Connect probe of voltage meter to CN7 CJC output A GND 6 Turn on computer power 7 Wait about 5 minute warn up 8 Run Calibration program of OME DB 889D 9 Close the probe of temperature meter to OME DB 889D them reading temperature value 10 Adjust VRI until the screen value 0 11 Adjust VR2 until voltage meter reading value temperature value X 2 44mV OME DB 889D User s Manual 23 WARRANTY DISCLAIMER OMEGA ENGINEERING INC warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase OMEGA s WARRANTY adds an additional one 1 month grace period to the normal one 1 year product warranty to cover handling and shipping time This ensures that OMEGA s customers receive maximum coverage on each product If the unit malfunctions it must be returned to the factory for evaluation OMEGA s Customer Service Department will issue an Authorized Return AR number immediately upon phone or written request Upon examination by OMEGA if the unit is found to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to
13. essure Gages Displacement Transducers A Instrumentation amp Accessories FLOW LEVEL Rotameters Gas Mass Flowmeters amp Flow Computers Air Velocity Indicators A Turbine Paddlewheel Systems A Totalizers amp Batch Controllers pH CONDUCTIVITY pH Electrodes Testers amp Accessories A Benchtop Laboratory Meters Controllers Calibrators Simulators amp Pumps 4 Industrial pH amp Conductivity Equipment DATA ACQUISITION A Data Acquisition Engineering Software 4 Communications Based Acquisition Systems 4 Plug in Cards for Apple amp Compatibles Datalogging Systems A Recorders Printers amp Plotters HEATERS 4 Heating Cable A Cartridge amp Strip Heaters Immersion amp Band Heaters Flexible Heaters 4 Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL Metering amp Control Instrumentation 4 Refractometers Pumps amp Tubing A Air Soil amp Water Monitors A Industrial Water amp Wastewater Treatment pH Conductivity Dissolved Oxygen Instruments M4019 1103
14. ion limited 2 Other detail data please reference thermocouple data book OME DB 889D User s Manual 13 3 3 CJC Output The OME DB 889D provides Cold Junction Compensation CJC for the thermocouple applications If the CJC is required place the JP17 in the position of the channel to be used as a CJC reference If the CJC is not required Place the JP17 in the position X CJC has output on connector CN7 Using a voltage meter measures CN7 which exists a voltage related to the OME DB 889D board temperature The CJC voltage transfers to temperature with formula T C V 1000 24 4 Voltage meter A GND V Voltage of CN7 T Temperature of OME DB 889D Example Turbo C Multi Function Card OME A 822PGL The OME DB 889D JP17 placed on 7 Example Program ka include lt stdio h gt include A822 h gt main void int ad channel gain trigger mode poll data float temp A822 Initialize 0 0x220 1 1 Initials OME A 822PGL Ref OME A 822PGH L Software Manual ad_channel 7 gain 0 trigger_mode 1 for A822 AD SetChGainMode ad channel gain trigger mode SettingOME A 822 A D channel 7 Gain 1 Trigger mode Software trigger poll data A822 AD PollingVar temp float poll data 2048 5 2048 1000 24 4 prinf Temperature 4 1f C n temp OME DB 889D User s Manual 14 4 Signal Connection The OME DB 889D can multiplex up to
15. l sales omega fr Daimlerstrasse 26 D 75392 Deckenpfronn Germany TEL 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 639 7678 e mail info omega de One Omega Drive River Bend Technology Centre Northbank Irlam Manchester M44 5BD United Kingdom TEL 44 0 161 777 6611 FAX 44 0 161 777 6622 Toll Free in United Kingdom 0800 488 488 e mail sales omega co uk It is the policy of OMEGA to comply with all worldwide safety and EMC EMI regulations that apply OMEGA is constantly pursuing certification of its products to the European New Approach Directives OMEGA will add the CE mark to every appropriate device upon certification The information contained in this document is believed to be correct but OMEGA Engineering Inc accepts no liability for any errors it contains and reserves the right to alter specifications without notice WARNING These products are not designed for use in and should not be used for patient connected applications OME DB 889D MULTIPLEXER BOARD ssesssesesssssesessoesesoesereoesereoeseeoeeoeeeesoesereorseroeroreeesoeeereoeseeeeseree 2 1 FUNCTION DESCRIPTION 2 BRA TUR ES e ng GRAN BA Na YA NG P 2 APPLICATIONS Na GARENA NG 2 1 2 5 222006 RK NALANG 2 2 INSTALLING sinscccciensscesevsccsssecavsvsnceccsssduccesuvvde
16. mpensation for thermocouples and thermocouple open detection Software programmable instrumentation amplifier Gain of 0 5 1 5 10 50 100 500 1000 Daisy chain up to OME DB 889D boards 1 2 Applications Energy management Signal conditioning Analog Multiplexer 1 3 Specification Accepts thermocouple type J K T E S R Cold junction Compensation 24 4mV C at 0 C Overvoltage protection 30V Continuous Common mode voltage 10V max Analog output Voltage to A D card 10V OME DB 889D User s Manual 2 Gain Common Mode Non linearity of Settling Time Rejection FSR 05 998 50004 255 ot om 50004 255 s5 im 00004 285 10 50004 2855 5 1 1 406 10 00004 1 14ous L9 _ 130015 130045 Power requirement 5V 120mA Dimension 114mm X 204mm Operating temperature 0 60 C Storage temperature 20 80 C Humidity 5 to 90 non condensing OME DB 889D User s Manual 3 2 Installing 2 1 Layout CJC Output External Voltage Input Jumper Connector Function Note Name CNI Conner connector oF OME A 82x series Caseaded to another OME DB 889D CN3 Connect to D O connector ofOME A 82x series CN4 Cascaded to another OME DB 889D GNG CNE inpatetanneto dumis TE E 0 channel 15 R C filter enable Filter Enable Open Filter Disable JP1
17. pin flat cable connector The CN1 CN2 D sub connector is analog output link to analog input connector of OME A 82X series multi function card amp cascaded another OME DB 889D The CN3 CN4 is digital control multiplex amp gain setting link to digital output connector of OME A 82x series multi function card CNI 2652 1 AD 1 2 AD 2 3 AD 3 4 4 5 AD 5 6 AD 6 7 7 8 4 GHD 9 GND 10 11 12 13 14 15 16 17 18 19 Note CN3 CN4 AO_n analog output channel n A GND Analog grounc Peo Do DOS TOV Note OME DB 889D User s Manual 21 AD 9 24 26 A GND Z3 GND Dil Dos Dos D GN D Td DOn DOO DO3 Multiplexer control bit DO4 DO6 Gain control bit D GND Digital Ground 5V PC s 5V 12V PC s 12V OME DB 889D User s Manual 3 Analog input amp Gain setting 3 1 Input Channel Selection The DB 990D provides 15 channel differential analog inputs Input channel selection is controlled by the 4 bit TTL CMOS digital data CN3 DO0 DO3 issued by the OME A 82x series multi function card DO 3 DO 2 DO 1 Analog input channel j ITM JH JW IN _ JA IN OME DB 889D User s Manual 10 3 2 Gain Setting The high grade instrumentation provides software programmable gains or switch selectable gain of 0 5 1 5 10 50 100 500 1000 Software Setting JP18 should be place on
18. sstesasssueveoessunedseseveessdseeesscvsuesseutedsusetecseuseseesseveccsevessess 4 24 D ANY Gi AA AA 4 2 2 JUMPER SETUP EEE E A E A E A E E 5 2 2 1 JP0 JP15 Analog Input R C 5 2 2 2 JP16 Analog Output Channel 5 2 2 3 JP19 Internal External Power selection eee eee ener 6 2 2 4 JPI8 Local Remote Gain control eee 6 2 3 PINEASSIGNMENT ONG TRA beside tee decade 8 ANALOG INPUT amp GAIN SETTING is ciscsssessccessacsssssiscsscessesuesasssseveassisevesedessssescevebsssdedessescvecsdeves 10 3 1 INPUT SELECTION kan NAGLABAN AA NANG 10 3 2 GAIN SETTING m sissies Sees NDN Ra ex E NB LO HAN nen dete tent 1 3 3 THE THERMOCOUPLE INPUT 2 1 2 2 1 1 00000000000000000000000000 12 3 3 1 Voltage TO Temperature Conversion esee 13 3 3 CIC OUTPUT AER dec cass NN EEE NG tese 14 4 SIGNAL CONNECTION FL atia ao e 69484540064 ro een dese Qon Gase ea Fe Pa n ea Se esa daa 15 4 1 FLOATING SIGNAL CONNECTION 022 2 0 00 00010000000000000000000000000000000 15 4 2 NON FLOATING SIGNAL aaa 16 4 3 CASCADING 889 17 4 4 OPEN THERMOCOUPLE 2 1 020 00
19. t OME DB 889D User s Manual 5 Programming The OME A 82x series multi function card can support up to 160 channels by cascading 10 OME DB 889D s without complex programming 5 1 Using OME A 822PGL This section will use OME A 822PGL to link OME DB 889D The major steps are listed below Step 1 Hardware installing 1 Turn off power of computer 2 Plug in OME A 822PGL then connect 37 pin cable amp 20 pin flat cables to CN1 and CN3 of OME DB 889D 3 Setup OME DB 889D Ref Jumper setting section of OME DB 889D The example program uses default setup 4 Connect your signal wiring 5 Turn on your computer power 6 Installing OME A 822PGL C library 7 Now you are ready to programming Step 2 Software programming C Language 1 Using OME A 822 library function to initial OME A 822PGL 2 Setup OME A 822PGL Bipolar mode Gain 1 Analog input channel 0 Trigger mode Polling mode Send digital output of OME A 822PGL data to control OME DB 889D D0 D3 OME DB 889D channel selection D4 D6 OME DB 889D Gain setting 4 Reading OME A 822PGL analog input data 5 Conversion data to voltage or temperature Note The OME A 82X series programming steps are same as those for the OME A 822PGL OME DB 889D User s Manual 20 5 3 Example Program DEMO 01 Using OME A 822 connect OME DB 889D include lt stdio h gt include A822 h main void int datal data2 float
20. voll vol2 A822 Initialize 0 0x220 1 1 822 Base address in 0x220 ref OME A 822 Software manual for reading OME DB 889D Channel 0 Gain 1 a A822 AD SetChGainMode 0 0 1 Setup OME A 822 A D channel 0 Gain 1 Polling mode A822 DO 0x0010 Send D O data to OME DB 889D Channel 0 Gain 1 delay 10 delay about 43u sec Ref Page 3 Settling time datal A822 AD PollingVar Reading OME A 822 A D data voll float data1 2048 5 2048 printf OME DB 889D channel 0 6 4f V n vol1 reading OME DB 889D Channel 1 Gain 10 tj A822 AD SetChGainMode 0 0 1 Setup OME A 822 A D channel 0 Gain 1 Polling mode OME DB 889D User s Manual 21 A822 DO 0x0021 Send D O data to OME DB 889D Channel 1 Gain 10 delay 10 delay about 43u sec Ref Page 3 Setting time data2 A822 AD PollingVar Reading OME A 822 A D data vol2 float data2 2048 0 5 2048 printf OME DB 889D channel 1 6 4f V n vol2 OME DB 889D User s Manual 22 6 Calibration The OME DB 889D is calibrated to its best of operation For environment subjected to large vibrations recalibration is recommended Before calibrating the OME DB 889D user should consider having the following available One 6 digital voltage meter One temperature meter One OME A 82x series multifunction card 6 1 Calibration VR Description Th
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