Omega Speaker Systems DRX-ACC All in One Printer User Manual
Contents
1. 4 Metering amp Control Instrumentation A Refractometers 4 Pumps amp Tubing A Air Soil amp Water Monitors A Industrial Water amp Wastewater Treatment A pH Conductivity amp Dissolved Oxygen Instruments M2769 10002. Bits 0 to 18 19 bits are value of the scale from 0 to 500000 Bit 19 is sign 0 for positive and 1 for negative Bits 20 to 23 are for decimal point value DP It means as Actual decimal value 10 1 DP where means TO THE POWER OF example if scale is 0 000345678 345678 x 10 9 value will be 345678 decimal 5464E hex bit 19 1 for negative bits 20 23 DP 10 A hex then data will be AD464E hex READING OFFSET Deviation applied to input to get a higher or lower reading This is 3 byte data 6 characters as follows Bits 0 to 19 are value from 0 to 1000000 Bit 23 is sign 0 for positive 1 for negative Bits 20 21 22 are decimal point value DP It means as Actual decimal value 10 2 DP where means TO THE POWER OF example offset value is 234 089 value of 234089 decimal 39269 hex decimal value 10 3 then DP 5 then 234 089 decimal 539269 hex COMMUNICATION PARAMETERS This is one byte data and specifies BAUD PARITY DATA and STOP bit BAUD bits 2 1 0 are 000 001 not used 010 for 1200 011 for 2400 100 for 4800 101 for 9600 110 for 19200 111 not used Page 12 PARITY bits 43 and are 00 for NO 01 for ODD 10 for EVEN 11 not used DATA BIT bit 5 and is 0 for 7 data 1 for 8 data STOP BIT bit 6 and is 0 for 1 stop i for 2 stop Bit 7 always 0 Note 1 Stop bit is always 1 Unless 7 data no parity is selected then unit will use 2 stop
3. Voltage input From 10 to 20V ANALOG TO DIGITAL TECHNIQUE Multiple slopes READ RATE 8 readings second automatic polarity ACCURACY AT 25 C 0 2 of FS 2 counts TEMPERATURE STABILITY 75 ppm C typical STEP RESPONSE FOR RS485 OUTPUT 2 seconds to 99 of the final value Filter time constant 64 RESPONSE TIME To verify the response time check the carriage return lt CR gt it will be sent at the end of the response You can send another command after you receive the lt CR gt ie send 01X01 response 01X01 lt DATA gt lt CR gt Note Ol is address WARM UP TO RATED ACCURACY 30 minutes INPUT POWER 10 to 32 Volt DC POWER CONSUMPTION 3 watts 125 mA at 24Vdc OPERATING AMBIENT 5 to 55 C STORAGE TEMPERATURE 40 to 85 C RELATIVE HUMIDITY 90 at 40 C non condensing Page 24 DRX TC SPECIFICATIONS INPUT TYPE WARM UP TO RATED ACCURACY 30 minutes Type J K T E R S B N J DIN INPUT POWER Input Type Range F Range C 10 to 32 Volt DC J 346 to 1400 F 210 to 760 C POWER CONSUMPTION K 454 to 2500 F 270 to 1372 C 2 4 Watts 100 mA at 24 V DC 7 454 to 752 F 270 to 400 C E 40010206 IRC a RS 58 to 32149F 50 to 1768 C B 212 to 3300 F 100 to 1820 C STORAGE TEMPERATURE N 454 to 2372 F 270 to 1300 C 40 to 85 C JDIN 328to1652 F 200 to 900 C RELATIVE HUMIDITY ISOLATION 90 at 40 C non condensing Dielectric strength to
4. 1000 Vrms transient per 1 minute test based on EN 61010 for 50 Vdc or Vrms working voltage Three way Isolation e Power to input e Power to analog output communication e Input to analog output communication INPUT OVER VOLTAGE PROTECTION 250 V AC for 1 minute ANALOG TO DIGITAL TECHNIQUE Dual slope READ RATE 3 readings second automatic polarity ACCURACY AT 25 C 1 C for temperature above 150 C 2 C for temperature below 150 C TEMPERATURE STABILITY 0 05 C C STEP RESPONSE FOR RS485 OUTPUT 2 seconds to 99 of the final value Filter time constant 64 RESPONSE TIME To verify the response time check the carriage return lt CR gt it will be sent at the end of the response You can send another command after you receive the lt CR gt 1 e send 01X01 TC SIGNAL INPUT response 01X01 lt DATA gt lt CR gt Note Ol is address Page 25 DIMENSIONS 0 5 156 z TYPICAL COMPUTER SETUP D di COMPUTER CONNECTION DB9 OR DB25 COMPUTER POWER CONNECTION Page 26 MADE 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 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
5. 2039150 2048066 U K Patent No GB2 248 954 GB2 249 837 CANADA 2052599 2052600 ITALY 1249456 1250938 GERMANY DE 41 34398 C2 Used under license Where Do I Find Everything I Need for Process Measurement and Control 13047ML 99E OMEGA Of Course TEMPERATURE Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies 4 Wire Thermocouple RTD amp Thermistor A Calibrators amp Ice Point References A Recorders Controllers amp Process Monitors l Infrared Pyrometers PRESSURE STRAIN AND FORCE lA Transducers amp Strain Gauges 4 Load Cells amp Pressure Gauges 4 Displacement Transducers 4 Instrumentation amp Accessories FLOW LEVEL 4 Rotameters Gas Mass Flowmeters amp Flow Computers 4 Air Velocity Indicators A Turbine Paddlewheel Systems A Totalizers amp Batch Controllers pH CONDUCTIVITY 4 pH Electrodes Testers amp Accessories Ip Benchtop Laboratory Meters 4 Controllers Calibrators Simulators amp Pumps l Industrial pH amp Conductivity Equipment DATA ACQUISITION A Data Acquisition amp Engineering Software 4 Communications Based Acquisition Systems 4 Plug in Cards for Apple IBM amp Compatibles l Datalogging Systems A Recorders Printers amp Plotters HEATERS 4 Heating Cable l Cartridge amp Strip Heaters 4 Immersion amp Band Heaters A Flexible Heaters Ip Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL
6. INPUT TYPE Min Low level signal input magnetic 120mV pickups From 0 mV to 120 mV Open Collector NPN Use software to set o 3 KQ pull up to 5V Max current source 1 66 mA Open Collector PNP Use software to set IKQ pull down to RTN Max current sink 12 5 mA TTIL CMOS Input Use software to set no pull up down Low lt 0 8 V High gt 3 5 V For Input 0 2 Hz to 16 KHz Low lt 0 8 V High gt 12 V For Input 0 2 Hz to 50 KHz NAMUR Sensors Use software to set IK pull z down to RTN and 8 2V Excitation For measuring a low level signal riding on top of a large DC signal connect a 0 1 uF capacitor See Detail Use software to set 1KQ pull down to RTN OPERATING MODES Frequency Range 0 2 Hz to 50 KHz Max Input Frequency 30 KHz for Input Level 0 5 V Max Input Frequency 50 KHz for Input Level 0 12 V z E cc 0 1uF FREQUENCY RESOLUTION 0 to 9 99999 Hz 0 00001 Hz 10 to 99 9999 Hz 0 0001 Hz 100 to 999 999 Hz 0 001 Hz 1000 to 9999 99 Hz 0 01 Hz 10000 to 50000 0 Hz 0 1 Hz 0 to 50000 Hz 1 Hz Totalize with Reset Range 0 to 999999 if reading is larger than 999999 then reading is converted to floating point number i e 9 99E9 maximum Max Input Frequency 30 KHz for Input Level 0 5 V Max Input Frequency 50 KHz for Input Level 0 12 V A B Totalize Reset input used as A input Range 99999 to 999999 if reading is larger than 999999 then reading is conve
7. If the unit should malfunction 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 reguest 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 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 being damaged as a result of excessive corrosion or current heat moisture or vibration improper specification misapplication misuse or other operating conditions outside of OMEGA s control Components which wear are 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 EXPRESSED OR IMPLIED EXCEPT THAT OF TITLE AND ALL IMPLI
8. bits Note 2 When 8 Data bit is selected only NO PARITY is allowed BUS FORMAT This is one byte data as Bit0 0 1 means checksum not included included Bit 1 not used Bit2 0 1 means no echo echo Bit3 1 means 485 mode Bit4 0 1 means continuous command mode Bits 7 5 not used For models PR ST FP Bit7 0 1 Enable Disable peak and valley comparison NOTE 1 ECHO mode means the unit will echo back the command letter and index NOTE 2 Do not use checksum option unless you have to use it Page 13 9 DATA FORMAT This is one byte and specifies the data which will be transmitted against the V01 command Bit pattern bit 0 0 1 Means do not include include peak amp valley status register bit 1 0 1 Means do not include include reading For models TC RTD ACV ACC bit 2 0 1 Means do not include include peak reading For models PR ST bit 2 0 1 Means do not include include process totalize For models TC RTD ACV ACC bit 3 0 1 Means do not include include valley reading For models PR ST FP bit 3 0 1 Means do not include include peak reading For models TC RTD ACV ACC bits 4 Not used Set to 0 For models PR ST FP bits 4 0 1 Means do not include include valley reading bit 5 Not used Set to 0 bit 6 0 1 Means do not include include unit of measure bit 7 0 1 Means space carriage return between values 10 DEVICE ADDRESS This is one byte data and specifies the address of t
9. d INPUT RANGE BIT NO VALUE 0 5 4 7 6 00 01 10 11 2 INPUT OUTPUT CONFIGURATION Bit pattern is BIT NO VALUE 1 0 00 01 10 11 not used set to 0 TC RTD Degree C Degree F Degree K Degree K This is one byte data 2 characters ACV ACC ST Temp compensation No temp compensation FREQUENCY PULSE FP Low input level Debounce contact 3K pull up to 5V 1K pull down 12 5V excit 5V excit 8V excit not used not used MEANING PR FP Freq mode Totalizer Totalizer Freq mode See Note 1 See Note 1 Quadrature See Note 1 See Note 1 A B mode eer Totalize mode Square root Page 10 Note 1 Bit 2 amp 3 set the speed of process totalize The time it would take process totalize to reach the non totalize reading is shown in the following table Bit 3 Bit 2 Time to reach regular reading 0 0 1 minute 0 1 1 hour 1 0 1 day 1 1 30 day 3 DECIMAL POINT This is one byte 2 characters as value meaning XXXXXX XXXXX X XXXX XX XXX XXX XX XXXX X XXXXX j DoF WN Note 1 For TC and RTD models value must be 1 to 3 only 4 FILTER TIME CONSTANT This is one byte 2 characters as value meaning per no of readings No filtering 2 4 8 16 32 64 128 ND OB WNF Page 11 READING SCALE Multiplication factor applied to input to get a higher or lower reading This is 3 byte data 6 characters as follows
10. if EMC problems persist Failure to follow all instructions and warnings may result in injury Page 4 SAFETY NOTE Disconnect all signal input and outputs before attempting this procedure Instructions 1 2 3 4 5 6 7 8 Open the Signal Conditioner Unit Remove Side Covers from Unit by lifting at the angled corners first using a flat head screwdriver Continue detaching remaining edges of the Cover Short TP6 amp TP17 together either by wire or if available jumper S1 A After shorting TP6 to TP17 apply power to the unit The Front Panel Power Indicator LED will NOT turn on After power has been applied to the unit for about 30 seconds turn power off The communication parameters now have been restored to the default settings Use the DRX Set up Program to establish communication with the meter This procedure will not affect calibration It only resets the communication parameters Side Cover Remove to Access Testpoints Front Panel Side Cover Lift Cover at Angled Corners sz Remove to Access S1 A Sien Attachments Per Side Jumper Opening Unit Solder wire from TP6 to TP17 on Solder side of Board Install Jumper onto S1 A on Component Side of Board L a 2 Version A Version B Testpoint Jumper Locati
11. CY AT 25 C 0 2 of FS from 30 Hz to 1 KHz TEMPERATURE STABILITY 10 100 mA Range 100 ppm C typical 1 Amp Range 150 ppm C typical 5 Amp Range 200 ppm C typical STEP RESPONSE FOR RS485 OUTPUT 2 seconds to 99 of the final value Filter time constant 64 RESPONSE TIME To verify the response time check the carriage return lt CR gt it will be sent at the end of the response You can send another command after you receive the lt CR gt Le send 01X01 response 01X01 lt DATA gt lt CR gt Note 01 is address WARM UP TO RATED ACCURACY 30 minutes INPUT POWER 10 to 32 Volt DC POWER CONSUMPTION 2 4 Watts 100 mA at 24 V DC OPERATING AMBIENT 5 to 55 C STORAGE TEMPERATURE 40 to 85 C RELATIVE HUMIDITY 90 at 40 C non condensing N WARNING For low leakage current through the power supply the ac voltage at Return input must not exceed 30 Vrms with reference to Earth Ground lt 30Vrms RETURN LOAD SA _ 1A 100mA External Power Supply Page 19 DRX ACV SPECIFICATIONS INPUT RANGES 400 mV 4V 40 Volt 400 Volt FREOUENCY RANGE 30 Hzto 1 KHz INPUT IMPEDANCE 2 1 Meg for all ranges ISOLATION Dielectric strength to 1000 Vrms transient per 1 minute test based on EN 61010 for 50 Vdc or Vrms working voltage Three way Isolation e Power to input e Power to analog output communication e Input to analog outpu
12. ED 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 otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for conseguential incidental or special damages CONDITIONS Eguipment 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 SG CUSTOMER SERVICE DEPARTMENT IN ORDER TO AVOID PROCESSING DELAYS The assigned A
13. NNECT LAST HAVE A RS485 COMMUNICATION a UNIT WITH SYSTEM GND CARD INSTALLED IN THE COMPUTER JUMPER TO Pa OR SHIELD INCLUDE 1209 ON THE BUS TEE COUPLER JACKS SHOWN FOR CLARITY OAO l SIGNAL INPUT FIRST UNIT ON BUS LAST UNIT ON BUS Communication Parameter Settings Communication settings information are very critical during set up if any of the parameters are changed it should be recorded on the label for future reference If the communication parameters used by the computer does not match the communication parameter of the DRX then the communication link may not be established Hence it is important to record the communication parameter on the label if different from default Resetting Communication Parameters to Factory Defaults To restore the communication parameters to the factory default settings two test points must be shorted together There are two ways of shorting these test points together both are detailed below Version A lest point IP6 must be shorted by a wire to test point IP17 or Version B Newer units have a jumper position S1 A for connecting these two test points together Factory Default Settings for Communication Baud Rate 9600 Data Bit 7 Parity Odd Stop Bits 1 Recognition Character Address 01 Page 3 SAFETY CONSIDERATIONS This device is marked with the international C
14. R 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 current repair charges Have the following contacting OMEGA information available BEFORE contacting OMEGA 1 PO number under which the product was 1 P O number to cover the COST PURCHASED of the repair 2 Model and serial number of the product under 2 Model and serial number of 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 2000 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 prior written consent of OMEGA ENGINEERING INC PATENT NOTICE This product is covered by one or more of the following patents U S Patents Des 336 895 5 274 577 FRANCE Brevet No 91 12756 SPAIN
15. RATIONS cus Gr EUR EG EA RGG e A 4 IV COMMANDS FOR ACCESSING EEPROM 6 V DESCRIPTION OF DATA 000000 GA 7 VI COMMANDS FOR MEASUREMENT VALUES 16 VII COMMANDS FOR READING MODEL INPUT TYPE 16 VIII RESET COMMANDS emire si adi ie id ele eden cede 17 IX SAMPLE PROGRAM seyin kii biyel ez bal emin 17 SPECIFICATIONS VR e ele PA m la Z eh en on NEO E er la 19 NN ge eect ag cee el e E Pa ee m ee an eee ete tie bee 20 REN EEN 21 ITA EE 22 TOD PE EEE ER 23 MN d M oi O ea ees ai meleke Mat 24 MGs A EN A GE MEN YMM WE Ee a 25 ILLUSTRATIONS Dimensions 5 aoi GT bbs dee zzz zzz SERA Reta td 26 Typical Computer Setup 26 NOTES I WHAT SIGNAL CONDITIONERS DO The DRX Series Signal Conditioners are high performance devices used as a front end for PLC s and Data Acquisition systems to measure a variety of low level transducer signals with high precision and accuracy The DRX Series Signal Conditioners interface directly to transducers and digitize the input signal The measured signal is then transmitted to a PLC or a computer using the RS485 Serial Communication Up to 32 units may be connected to the same serial RS485 bus and each unit may be addressed to transmit the signal being measured under program control executed on a PLC or a computer The key features of the DRX Series Signal Conditioners are the ease of set up and factory calibrated ranges All range s
16. RDG PRINT 1 01X01 DAT1 DATS TS TIMES TI MIDS TS LEN TS 1 2 Tl VAL TI DO IF LOC 1 gt 0 THEN CNT 0 DAT1 INPUT LOC 1 1 DATS DATS DATIS ELSE TS TIMES T2 MID T LEN TS 1 2 T2 VAL T2 IF T2 lt T1 THEN T2 T2 60 IF T2 TI gt 2 THEN CNT 1 END IF LOOP UNTIL CNT 1 OR INSTR 1 DAT CHR 13 gt 0 IF DATS THEN LOCATE 5 30 COLOR 28 PRINT COMMUNICATION ERROR P 1 ELSE IF P 1 THEN LOCATE 15 30 COLOR 7 0 PRINT 1 P 0 END IF LOCATE 10 40 D MIDS DATS 6 DAT LEFTS D LEN D 1 COLOR 1 7 PRINT DATS 2 SPACES END IF RETURN ER RESUME NEXT Page 18 24 SPACES DRX ACC SPECIFICATIONS INPUT RANGES 10 mA 100 mA 1 Amp 5 Amp AC current Dedicated input terminals for 10 100 mA same input 1 Amp and 5 Amp Return terminal common to all ranges FREQUENCY RANGE 30 Hz to 1KHz INPUT IMPEDANCE 3 3 Ohms for 10 100 mA input 0 2 Ohms for 1 Amp input 0 04 Ohms for 5 Amp input ISOLATION Dielectric strength to 1000 Vrms transient per 1 minute test based on EN 61010 for 50 Vdc or Vrms working voltage Three way Isolation e Power to input e Power to analog output communication e Input to analog output communication INPUT OVER CURRENT PROTECTION 10 Above full scale continuously 100 Above full scale for 10 seconds ANALOG TO DIGITAL TECHNIQUE Dual slope READ RATE 3 readings second ACCURA
17. User s Guide CE KX KR IRX SK TER s a ET ZOME http www omega com e mail info omega com DRX ACC DRX ACV DRX FP DRX PR DRX RTD DRX ST DRX TC Communication Manual for DRX Signal Conditioner Series omega com DEOMEGA OMEGAnet On Line Service Internet e mail http www omega com info omega com Servicing North America USA One Omega Drive P O Box 4047 ISO 9001 Certified Stamford CT 06907 0047 TEL 203 359 1660 FAX 203 359 7700 e mail info omega com Canada 976 Bergar Laval Quebec H7L 5A1 TEL 514 856 6928 FAX 514 856 6886 e mail info omega ca For immediate technical or application assistance USA and Canada 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 Mexico TEL 001 800 TC OMEGA FAX 001 203 359 7807 En Espa ol 001 203 359 7803 e mail info omega com mx Servicing Europe Benelux 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 nl omega com Czech Republic Rud arm dy 1868 733 01 Karvin 8 TEL 4420 0 69 6311899 FAX 420 0 69 6311114 e mail czech omega com France 9 rue Denis Papin 78190 Trappes TEL 33 0 130 621 400 FAX 33 0 130 699 120 Toll Free in Fran
18. X01 response 01X01 lt DATA gt lt CR gt Note Only for reading X01 command 01 is address Frequency mode response time is controlled by the gate time If gate time is increased then response time is longer Other modes response time is not controlled by the gate time WARM UP TO RATED ACCURACY 30 minutes INPUT POWER 10 to 32 Volt DC POWER CONSUMPTION 3 Watts 125mA at 24V DC OPERATING AMBIENT 5 to 55 C STORAGE TEMPERATURE 40 to 85 C RELATIVE HUMIDITY 90 at 40 C non condensing Quadrature Mode Excitation EXC A N 2 B RST Quadrature RTN Encoder EXC EXC JA iy J2 RST RTN EXG Totalize A B Mode B Frequency Mode iq Totalize Mode with Reset example Excitation EX IN RST RIN NPN open Collector DRX PR SPECIFICATIONS INPUT RANGES 20mA 400mV 1V 2V 5V and 10V Ratiometric or nonratiometric EXCITATION 14V or 10V 25mA INPUT IMPEDANCE Voltage Range IM Current Range 10Q ISOLATTON Dielectric strength to 1000 Vrms transient per 1 minute test based on EN 61010 for 50 Vdc or Vrms working voltage Three way Isolation e Power to input e Power to analog output communication e Input to analog output communication INPUT OVER RANGE PROTECTION Voltage input 50V Current input 50mA MODE Linear Sguare root Linear totalize Sguar
19. ats data hh lt cr gt ii For the commands which do not require the data NO RESPONSE B Error response 1 If unit is in echo mode nn ee lt cr gt 2 If unit is not in echo mode ee lt cr gt NOTE CL 3 Means will be used wherever applicable Is the security recognition character default is nn Is the unit s address in hexadecimal default is 01 Address may be from 01 to FF Cc 3 Is the command letter must be capital W For writing to the EEPROM requires data R For reading from the EEPROM doesn t require data XxX Command index is a hexadecimal number from 01 to FF data Is one two or three bytes 2 4 6 characters respectively It will be in hexadecimal format except when command X is executed in which case it is in decimal format hh Is checksum characters Required if Checksum option is on See BUS FORMAT The checksum is one byte two characters that is the simple hexadecimal addition of all the previous bytes ignoring any overflow Page 7 ee i Special code indicating an error has occurred as 243 Command error occurs if command letters and indexes are invalid 246 Format error occurs if length of the data or number of characters is not correct 248 Checksum error occurs if checksum is not correct 250 Parity error occurs if parity is not correct lt cr gt Carriage return Note If Baud rate Recognition character or address are
20. aution symbol Itis important to read this manual before installing or commissioning this device as it contains important information relating to Safety and EMC Electromagnetic Compatibility Unpacking amp Inspection Unpack the instrument and inspect for obvious shipping damage Do not attempt to operate the unit if damage is found connections in the appropriate section of this manual These instruments must only For instruments with AC Voltage and AC Current inputs observe the input signal be installed by professional electricians e Do not exceed voltage rating on the label located on the instrument housing e Always disconnect power before changing signal and power connections e Donotusethisinstrument on a work bench without its case for safety reasons e Do not operate this instrument in flammable or explosive atmospheres e Do not expose this instrument to rain or moisture e Unit mounting should allow for adeguate ventilation to ensure instrument does not exceed operating temperature rating e Use electrical wires with adeguate size to handle mechanical strain and power reguirements Install without exposing bare wire outside the connector to minimize electrical shock hazards EMC Considerations Whenever EMC is an issue always use shielded cables Never run signal and power wires in the same conduit Use signal wire connections with twisted pair cables Install Ferrite Bead s on signal wires close to the instrument
21. ay Isolation e Power to input e Power to analog output communication e Input to analog output communication INPUT OVER VOLTAGE PROTECTION 250 V AC for 1 Minute ANALOG TO DIGITAL TECHNIQUE Dual slope READ RATE 3 readings second automatic polarity ACCURACY AT 25 C 0 5 C for platinum RTD s TEMPERATURE STABILITY 0 05 C C STEP RESPONSE FOR RS485 OUTPUT 2 seconds to 99 of the final value Filter time constant 64 RESPONSE TIME To verify the response time check the carriage return lt CR gt it will be sent at the end of the response You can send another command after you receive the lt CR gt Le send 01X01 response 01X01 lt DATA gt lt CR gt Note Ol is address WARM UP TO RATED ACCURACY 30 minutes INPUT POWER 10 to 32 Volt DC POWER CONSUMPTION 2 4 Watts 100 mA at 24 V DC OPERATING AMBIENT 5 to 55 C STORAGE TEMPERATURE 40 to 85 C RELATIVE HUMIDITY 90 at 40 C non condensing Page 23 DRX ST SPECIFICATIONS INPUT RANGE 30mV 100mV Ratiometric or nonratiometric EXCITATION 10V 30mA or external INPUT IMPEDANCE More than IMQ ISOLATTON Dielectric strength to 1000 Vrms transient per 1 minute test based on EN 61010 for 50 Vdc or Vrms working voltage Three way Isolation e Power to input e Power to analog output communication e Input to analog output communication INPUT OVER RANGE PROTECTION
22. ce 0800406342 e mail france omega com Germany Austria Daimlerstrasse 26 D 75392 Deckenpfronn Germany TEL 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 TC OMEGA e mail germany omega com United Kingdom One Omega Drive ISO 9002 Certified River Bend Technology Centre Northbank Irlam Manchester M44 5EX United Kingdom TEL 44 0 161 777 6611 FAX 44 0 161 777 6622 Toll Free in the UK 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 This device is marked with the international hazard symbol It is important to read the Setup Guide before installing or commissioning this device as it contains important information relating to safety and EMC TABLE OF CONTENTS I WHAT SIGNAL CONDITIONERS DO 1 II MODEL OF UNIT EE i III RS485 SERIAL COMMUNICATION SETUP 1 SAFETY CONSIDE
23. e root totalize ANALOG TO DIGITAL TECHNIQUE Multiple slopes READ RATE 8 readings second automatic polarity ACCURACY AT 25 C 0 1 of FS 2 counts TEMPERATURE STABILITY 100 ppm C typical STEP RESPONSE FOR RS485 OUTPUT 2 seconds to 99 of the final value Filter time constant 64 RESPONSE TIME To verify the response time check the carriage return lt CR gt it will be sent at the end of the response You can send another command after you receive the lt CR gt di Le send 01X01 20mA response 01X01 lt DATA gt lt CR gt Note 01 is address E WARM UP TO RATED ACCURACY 30 minutes INPUT POWER 10 to 32 Volt DC POWER CONSUMPTION 3 watts 125 mA at 24Vdc OPERATING AMBIENT 5 to 55 C STORAGE TEMPERATURE 40 to 85 C RELATIVE HUMIDITY 90 at 40 C non condensing Excitation EXC SIG V IN J2 1 IN RTN COM Page 22 DRX RID SPECIFICATIONS SPECIFICATIONS 100 500 1000 Ohm platinum RID with both European alpha 0 00385 and American alpha 0 00392 curves Input Type 100 Ohm 328 to 1562 F 200 to 850 C 500 Ohm 328 to 1562 F 200 to 850 C 1000 Ohm 328 to 1562 F 200 to 850 C ISOLATION Dielectric strength to 1000 Vrms transient per 1 minute test based on EN 61010 for 50 Vdc or Vrms working voltage Three w
24. he unit when in RS485 multipoint mode Addresses are in hexadecimal from 01 to FF NOTE Address 00 is for broadcasting All units on the same BUS will perform any command with this address but will not respond 11 RECOGNITION CHARACTER This is one byte security character Default is Page 14 12 UNIT OF MEASURE This is 3 bytes It is ASCII value of unit of measure 13 GATE TIME For FP model only This is 1 byte from 00 to FF For value 00 to FA Each count equals 10ms If 0 then gate time 3ms Example 1 second gate time 64 hex For value FB to FF Value Gate time FB 5 seconds FC 10 seconds FD 20 seconds FE 40 seconds FF 80 seconds 14 DEBOUNCE TIME For FP model only This is 1 byte from 01 to FF Each count equals 5ms If 0 then error 15 TRANSMIT TIME This is 2 bytes data in second and specifies the time of the transmission by the meter Page 15 VI VII COMMANDS FOR MEASUREMENI VALUES Command Receiving value 01X01 For all models Reading value After reading scale and offset Note In order to have continuous update on reading Customer should send X01 command every time reading is requested Models TC RTD ACV ACC 01X02 Peak reading value 01X03 Valley reading Models PR ST FP 01X03 Peak reading value 01X04 Valley reading 01V01 For all models String of values Received values are in decimal with decimal point and no sign for positive and m
25. inus sign for negative Example 00345 6 or 00345 6 If value is overflowed a will be transmitted along with value 99999 or 999999 COMMANDS FOR READING MODEL INPUT TYPE Command Receiving value 01U01 One byte for model number VALUE MODEL 00 FP 01 PR 02 ST 03 TC 04 RID 05 ACV 06 ACC Page 16 VIII RESET COMMANDS 01701 For all models Hard reset reading data from EEPROM 01702 For all models Soft reset Initialize reading 01703 For models TC RTD ACV ACC Reset peak and valley For models PR ST Reset process totalize value 01704 For models PR ST FP Reset peak value 01705 For models PR ST FP Reset valley value 01707 For models TC RTD ACV ACC Reset peak only 01708 For models TC RTD ACV ACC Reset valley only NOTE Recognition character 01 Follow Address IX SAMPLE PROGRAM ASSUMING BAUD RATE 9600 PARITY ODD DATA BIT STOP BIT COMM PORT ADDRESS RECOG CHAR SERIAL PORT COM1 FOR COMM PORT 2 gt CHANGE COM1 TO COM2 THIS PROGRAM WILL GET READING AND DISPLAY IT EVERY 1 SECOND ON ERROR GOTO ER ON TIMER 1 GOSUB RDG CLS CLOSE 1 COLOR 1 7 LOCATE 22 30 PRINT PRESS lt ESC gt TO END OPEN COM1 9600 0 7 1 CS DS FOR RANDOM AS 1 LOCATE 10 30 PRINT READING TIMER ON DO LOOP UNTIL INKEY CHR 27 1 l SH ta U Page 17 COLOR 7 0 CLS END
26. not correct then the UNIT will not respond DESCRIPTION OF DATA For the following Bit Pattern The LSB is always bit 0 Bit numbers are always counted from right to left with the rightmost digit being bit 0 and the next to the left would be bit 1 1 INPUT RANGE This is one byte data 2 characters This byte will specify input range and other input configurations of each model Bit pattern for different models a INPUT RANGE BYTE VALUE TC ACV ACC Bits 3210 0000 J 400 mV ac 10 mA 0001 K 4V ac 100 mA 0010 T 40 V ac 1A 0011 E 400 V ac 5A 0100 N 0101 DINJ 0110 R 0111 S 1000 B 1001 1111 not used Bit 6 4 not used Bit 7 0 Line frequency 60Hz 1 Line frequency 50Hz Page 8 b INPUT RANGE BIT NO VALUE Bits 1 0 5 4 00 01 10 11 00 01 10 11 c INPUT RANGE BIT NO VALUE 3 0 0000 0001 0010 0011 0100 0101 0110 1111 not used 0 1 0 1 not used 0 1 Page9 RID 100 ohms 500 ohms 1000 ohms 10 ohms COPPER PLATINUM NICKEL DIN STANDARD NIST FOR Pt SAMA FOR Ni 2 wire 3 wire 4 wire not used not used Line frequency 60Hz Line frequency 50Hz PROCESS PR STRAIN ST 0 20 mA 30 mV 400 mV 100 mV LV 2V 5V 10 V 14V Excit Internal excit 10V Excit External excit Non ratiometric PR ST Ratiometric PR GI Line frequency 60Hz PR ST Line frequency 50Hz PR ST
27. ons gt gt S1 A TP17 SKg O Page 5 IV COMMANDS FOR ACCESSING EEPROM NO command letter index meaning of bytes 1 R W 01 Input range or function 1 2 RW 02 Input output Configuration 1 3 RW 03 Decimal point 1 4 RW 04 Filter time constant 1 5 RW 05 Reading scale 3 6 RW 06 Reading offset 3 Ta RW 07 Communication parameters 1 8 RW 08 Communication bus format 1 9 RW 09 Communication Data format 1 10 RW 0A Communication device address 1 11 RW 0B Communication recog char 1 12 R W 0C Unit of measure 3 13 R W 0D Gate time 1 14 R W OE Debounce time 1 15 RW 0F Transmit time 2 NOTE 1 Data Number of hex digits 2 number of bytes 2 command letter meaning R Read from EEPROM W Write to EEPROM 3 W commands should be followed by 701 command for new values to take effect A COMMAND FORMAT TRANSMITTING nn Cxx data hh lt cr gt Note Data is required if Command Letter is W B RESPONSE FORMAT RECEIVING A Correct response 1 If unit is in echo mode see BUS FORMAT nn Cxx data hh lt cr gt echo mode unit will send back the command Page 6 2 If unit is not in echo mode i For the commands which require the data to be transmitted by the DRX Signal Conditioner data is sent in the following form
28. re modifications Factory Default communication settings are as follows Baud Rate 9600 Parity Odd Data Bits 7 Stop Bits 1 Press ALT S To save current communication settings Press ALT O To go to chat mode If the communication port selected is available and the communication parameters of both the computer and the DRX are matched then a serial link may be established To check the communication any of the commands may be tried i e 01X01 would return the current measured signal value For Hyper Terminal Windows 95 Start the Hyper Terminal Program from programs accessories Click on the Properties from the File menu Under the Phone Number Menu choose Connect using Direct to COM1 or COM2 whichever that s available Click on Configure Button Choose Baud rate Data bits Parity and Stop bits According to DRX s settings Flow Control None Click OK Button Factory Default communication settings are as follows Baud Rate 9600 Parity Odd Data Bits 7 Stop Bits 1 Under Settings Menu Click ASCII Setup Button Choose all options except Force Incoming Data to 7 Bits ASCII Click OK Button Page 2 DRX SIGNAL CONDITIONERS WITH RS485 SERIAL COMMUNICATION PORT RS232 TO RS485 CONVERTER HALF DUPLEX TX RX 1 A TX RX 2 r GND 3 COMPUTER NOTE YOU CAN CONNECT A DRX DIRECTLY TO THE COMPUTER IF YOU CO
29. rted to floating point number i e 9 99E9 minimum 9 99E9 maximum Max Input Frequency 30 KHz for Input Level 0 5 V Max Input Frequency 25 KHz for Input Level 0 12 V Quadrature Reset input used as second input Range 99999 to 999999 if reading is larger than 999999 then reading is converted to floating point number i e 9 99E9 minimum 9 99E9 maximum Max Input Frequency 30 KHz for Input Level 0 5 V Max Input Frequency 25 KHz for Input Level 0 12 V Resolution is 1 count ISOLATION Dielectric strength to 1000 Vrms transient per 1 minute test based on EN 61010 for 50 Vdc or Vrms working voltage Three way Isolation e Power to input e Power to analog output communication e Input to analog output communication INPUT IMPEDANCE Input 1MQ to EXC Reset 100K to 5V Page 21 INPUT OVER VOLTAGE PROTECTION With IK pull down 14V With 3K pull up 20V Without pull up down 60V EXCITATION 5 8 2 or 12 5V at 25mA programmable ACCURACY AT 25 C 0 1 of FS Crystal time base accuracy 50 ppm TEMPERATURE STABILITY 50 ppm C typical Time base stability Ippm C STEP RESPONSE FOR RS485 OUTPUT 0 1 second to 99 of the final value Filter time constant 0 Gate time 0 05 Sec RESPONSE TIME To verify the response time check the carriage return lt CR gt it will be sent at the end of the response You can send another command after you receive the lt CR gt Le send 01
30. t communication INPUT OVER VOLTAGE PROTECTION 10 Above full scale continuously 100 Above full scale for 10 seconds ANALOG TO DIGITAL TECHNIQUE Dual slope READ RATE 3 readings second ACCURACY AT 25 C 400 mV 4V 40V and 400V ranges 49 Hz to 500 Hz 0 2 of FS 30 Hz to 1KHz 0 2 of FS 10 counts TEMPERATURE STABILITY 400 mV and 40 Volt range 150 ppm C typical 4V and 400 Volt range 100 ppm C typical STEP RESPONSE FOR RS485 OUTPUT 2 seconds to 99 of the final value Filter time constant 64 RESPONSE TIME To verify the response time check the carriage return lt CR gt it will be sent at the end of the response You can send another command after you receive the lt CR gt ie send 01X01 response 01X01 lt DATA gt lt CR gt Note 01 is address WARM UP TO RATED ACCURACY 30 minutes INPUT POWER 10 to 32 Volt DC POWER CONSUMPTION 2 4 watts 100 mA at 24 Vdc OPERATING AMBIENT 5 to 55 C STORAGE TEMPERATURE 40 to 85 C RELATIVE HUMIDITY 90 at 40 C non condensing WARNING The high side of ac signal that is being measured must be connected to the Sig Hi of signal input lt 30Vrms 477 J1 N WARNING For low Earth leakage current through the power supply the ac voltage at Sig Lo input must not exceed 30 Vrms with reference to Earth Ground External Power Supply Page 20 DRX FP SPECIFICATIONS
31. witching are done electronically by sending the appropriate command therefore there is no need to remove or open the units when signal input levels are changed All set up may be done by using the Set up Software running on a computer or by user supplied programs II MODEL OF UNIT There are 7 models available THERMOCOUPLE DRX TC RTD DRX RTD STRAIN DRX ST PROCESS DRX PR FREQUENCY PULSE DRX FP AC VOLT DRX ACV AC CURRENT DRX ACC III RS485 SERIAL COMMUNICATION SETUP Communication with the UNIT will be performed via serial communication using RS485 standard half duplex To use the RS485 communication for the Signal Conditioners you ll need an available Communication port in your computer and have access to a generic communication software program e g Procomm Windows HyperTerminal etc see details below for information A RS485 signal conditioner communication software program is also available as an option to speed the set up A RS232 to RS485 converter box will also be required if your computer communications port is RS232 Procomm is a registered trademark of Datastorm Technologies Inc 2 Windows is a registered trademark of Microsoft Corp gt HyperTerminal is a registered trademark of Microsoft Corp Page 1 For Procomm Start the Procomm Program Press ALT P Select the appropriate communication parameters Baud Rate Parity Data Bits Stop Bits Ihe default settings may regui
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