MIPEX-03 User manual
Contents
1. electrical shock caused by the sensor Gas sampling method Diffusion Operating principle Non Dispersive Infra Red NDIR CH Target gas CH ICH CoH C0 Operating Relative humidity up to 98 storage and Atmospheric transportation pressure 80 120 kPa c conditions Temperature range 40 60 C x 20x16 5 mm without pins o Overall dimensie 22x16 5 mm without pins Pins length 4 6 16 69 Weight 15 59 5 59 Enclas r Stainless steel standard and fast response versions Plastic MTBF 10 years 100 Vol 5 Vol 2 596 Vol Measurement range 100 LEL c 1 596 Vol ALARM SENSOR 50 LEL 20 1 Vol or 5 of indication o Pre 3 LEL or 5 of indication n 10s 20s Response time T90 30s 60s Temperature pressure and humidity performance According to Appendix A Supply Voltage Range 3 0 5 0 VDC T Output signal digital UART analog output i Power consumption lt 5mW o Warm up time not more than 1 min TT Degree ot personal protection da het meet the requirement of class Ill GOST 12 2 007 0 Marking and standards compliance Ex Ma Ex ia IIC Ga acc to IEC60079 0 IEC60079 11 IEC60079 26 40 lt Ta lt 60 C IM1 II1G Ex ia I Ma Ex ia IIC Ga acc to EN60079 0 EN60079 11 EN60079 26 40 lt Ta lt 60 C RECOGNIZED COMPONENT Class l Division 1 Group A B C D US ae CON2. of indication whichever value is greater Additional temperature error 0 2 Vol or 10 of indication from 20 C whichever value is greater test 10 C 20 C 40 C 0 2 Vol or 10 of indication from 20 C whichever value is greater in temperature range from 10 C to 40 C test 10 C 20 C 40 C 0 4 Vol or 20 of indication from 20 C in temperature ranges from 40 C to 10 C and from 40 C to 60 C whichever value is greater test 25 C 20 C 55 C whichever value is greater test 25 20 C 55 C 0 2 Vol or 10 of indication from 20 C whichever value is greater in temperature range from 10 C to 40 C test 10 C 20 C 40 C unspecified performance in temperature ranges from 40 C to 10 C and from 40 C to 60 C Additional pressure error 0 2 Vol or 30 of indication from 100kPa test 80kPa 100kPa 120kPa Additional humidity error Temperature range Operation temperature 10 40 for portable devices according to EN 60079 29 1 0 2 96 Vol or 15 96 of indication from the indication at adjustment at 40 C test 20 RH 50 RH 90 RH 40 60 for fixed devices according to EN 60079 29 1 0 100 LEL measure 0 50 LEL alarm sensor 10 Vol REV 0 7 Dated 14 April 2015 3 LEL or 5 of indication whichever value is greater 5 LEL or 10 96 of in
3. Average consumption is less than 1 mA see Fig 1 and Fig 2 In case of the sensor sends the commands via UART maximum current consumption may rise up to 10 mA during 60 ms After power up during 60s warm up time the sensor does not return the concentration value the value displays as 1 After that sensor starts to transfer measured values After warm up 1 minute after power up the sensor makes self diagnostic test during 2 minutes Please note if the dust filter from sensors kit was attached then ZERO2 command must be send after Warm up time Sensor updates information about concentration every approx 1 3 sec Sending command more often than 1 time per sec 1 Hz sampling rate is not recommended otherwise the temperature sensor accuracy comes down 5 3 Proper use The sensor outputs information about measured concentration value though the digital serial interface UART or analog output see chapter 6 for details Data communication protocol is given in Appendix C Methods of setting zero of the sensor and re calibration are given in Appendix D The sensor is designed for continuous operation There is self testing algorithm inside the firmware code REV 0 7 Dated 14 April 2015 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL 10 15 20 Typical current spikes during measurement period Average current consumption Fig 1 Typical current consumption waveform vs time R 30 Ohm C 20 uF
4. Time mS 10 15 20 25 Barrier voltage drop waveform with 30 Ohm amp C 20 uF Barrier voltage drop waveform with R 60 Ohm amp C 20 uF s Minimum supply voltage Fig 2 Typical barrier voltage output vs time 3 3V input REV 0 7 Dated 14 April 2015 10 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL 6 DESCRIPTION OF ANALOG OUTPUT Preset of analog output AnOut must be additionally noted within purchase order For MIPEX 03 X XX X 1 and MIPEX 03 X XX X 2 models the range of output voltage can be configured through UART Henceforth the range of output voltage might be reconfigured by user For MIPEX 03 X XX X 1 3 pin model this operation will require MIPEX 03 special contacting device and configuration unit acquire separately AnOut UART configuration procedure 6 1 Setting up the output mode The command DACMODE is used to set analog output mode There are four possible modes of analog output e DACMODEO switch off analog output Digital interface is used if available e DACMODE1 initiate the mode where 0 4V output is relative to zero gas concentration and 2 0V is a maximum e DACMODE2 initiate the mode where half of input voltage is relative to zero gas concentration and maximum concentration relative to maximum output voltage pellistor replacement POSITIVE adaptation e DACMODES initiate the mode where half of input voltage is relative to zero gas concentration and maximum concentrat
5. CO2 CH4 CH4 C2H6 CH4 C3H8 CO2 CH4 CH4 C2H6 CH4 C3H8 CO REV 0 7 Dated 14 April 2015 CHa CHa C2He Housing type Metal housing MIM SS 316 22 20max 220 14 19 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL Table 4 MIPEX 03 X XX 3 X types interfaces and overall dimensions plastic Part number Sensor type 1 XX 3 1 2 XX 3 1 C3H8 3 XX 3 1 CO2 4 XX 3 1 CH4 CH4 C2H6 1 XX 3 2 CH4 2 XX 3 2 C3H3 3 XX 3 2 CO2 4 XX 3 2 CHa CHa C2H6 1 XX 3 3 2 XX 3 3 C3H3 3 XX 3 3 CO2 REV 0 7 Dated 14 April 2015 4 XX 3 3 CH4 CH4 C2H6 Housing type Plastic housing LEXAN RESIN 943A 20 14max i 4 os i 4 DA mm amm rea wi 2 20 Table 5 Individual specifications by type of MIPEX 03 Calibration Measurement range 50LEL 0 2 5 Vol alarm sensor RX code marking 5 0 5 Vol measure 5 100 Vol indication 100 0 100 Vol measure 1 5 0 1 5 Vol measure 1 5 2 5 Vol indication 50LEL 0 2 5 Vol alarm sensor 5 0 5 Vol measure 5 100 Vol indication 100 0 100 Vol measure 1 5 0 1 5 Vol measure 1 5 2 5 Vol indication Accuracy 0 1 Vol or 5
6. changing or erasing of sensors firmware or changing sensors settings because of misuse of service codes via UART e defect or failure due to using power or signal cables unspecified by technical regulations and standards or operating the sensor with EMC influences exceeds maximums specified in IEC 61000 4 3 Replacement or repair of defective sensor does not lead to setting a new warranty period The Manufacturer is not responsible for possible damages direct or indirect inflicted to people or properties if this is happened in case of repair storage and transportation rules violation or due to purport or reckless act of Customer or third party The Manufacturer does not respond as well for possible damages direct or indirect inflict to appropriate equipment as the result of change damage or data loss The warranty repair or replacement is effecting in site of Manufacturer or designated representative Shipping and packaging charges and any other incidental expenses for the products returned to Manufacturer will be at the Customer s own risk and charged to him REV 0 7 Dated 14 April 2015 15 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL 9 CONTACTS MIPEX Technology Optosense LLC 27 AD Engelsa prospect St Petersburg 194156 Russia Tel fax 7 812 633 0594 633 0595 web http www mipex tech com e mail info mipex tech com support support mipex tech com REV 0 7 Dated 14 April 2015 16 ESAT 413347 006 UM MIPE
7. Conc1 The command might be used to re calibrate the sensor if the scale coefficient is known Here XXXXX value of scale coefficient normalized to 10000 for example to initiate scale coefficient 0 7 send CALB1 07000 The scale coefficients for different gases are individual for each sensor To achieve cross coefficients contact Optosense LLC From the firmware ver 2x 6 introduced new autozeroing algorithm and the possibility to adjust the temperature coefficients by user Autozeroing is embedded in self diagnostics algorithm of the sensor It starts after sensor is powered up Self diagnostics is operating during the sensor is on If anyway zero shift is observed manual zeroing procedure is recommended Use the following command to control the algorithm AZERO ON turn on autozeroing algorithm AZERO OFF turn off autozeroing algorithm AZERO check current autozeroing status Response is AZERO ON or AZERO OFF The sensor is able to adjust the temperature coefficients and store it in the controller memory There are up to 8 correction values pair of data temperature and signal ratio lt Stz gt could be written automatically or in manual mode Temperature range from 40 to 60 C is divided to equal intervals about 12 5 C Each interval is used for responsible operating temperature Automatic mode procedure e Place the sensor in the chamber with nitrogen and send ZEROO command This command is erase factory temperature coe
8. DACMODE1 C 160 ROE N ALME ALMH U os 50 05 DACMODE2 C S0 U Ao ALMH 0 5 Za ALMH U inout U U 0 5 50 DACMODE3 C 50 os U J AnOut sup 2 Aem REV 0 7 Dated 14 April 2015 12 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL Where C is gas concentration in Vol Uanout iS output voltage in V Usup is sensor power supply voltage in V ALMH concentration for upper voltage level in 9e Vol 100 See illustrations on Fig 3 Fig 4 and Fig 5 EXAMPLE Aim Need to have AnOut with range 1 5 2 0 V for 0 5 Vol CH4 Usup 3 0V Solution 1 Send DACMODE2 and check that response is 2 Calculate ALMH coefficient ALMH 30 Gy Cmax a 0 5 sk EE S Vol 250 me zm 0 5 0 16667 3 ov 3 Send ALMH 1500 and check that response is 4 Uanout to C conversion is 1500 U C _ 0 5 10 U 1 5 50 3 0 J ano REV 0 7 Dated 14 April 2015 13 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL 7 STORAGE AND TRANSPORTATION The transportation of the sensors should be performed by all means of transportation in covered transportation vehicles as well as in the heated pressurized plane compartments in accordance with the rules of cargoes transportation effective for the respective type of transportation The sensors in the Manufacturer s package should be kept in the Suppliers and Customer s storages under storage co
9. FORMS UL913 60079 0 60079 11Std Intertek CERT TO CAN CSA C22 2 No 157 92 Std 4004454 c Available options See Appendix A for details REV 0 7 Dated 14 April 2015 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL 3 INTRINSICALLY SAFETY Combined intrinsically safe parameters of sensors circuits are as follows IECEX ATEX Ui 5 0V 200mA Pi 0 13W 5 95pF Li 0 CAN CSA Vmax 5 0V Imax 200mA Pmax 0 13W Ci 5 95pF Li 0 It is allowed to connect the sensor only to intrinsically safe circuits with the rated direct current output voltage UO within the range of not less than 3 V and not more than 5 V with the output power PO not less than 0 02 W and not more than 0 25 W The gas analyzing equipment which is used with MIPEX 03 must meet the requirements of IEC60079 0 IEC60079 11 60079 14 and have parameters conforming the MIPEX 03 intrinsically safe pointed above REV 0 7 Dated 14 April 2015 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL 4 PRECAUTIONS Inspection and maintenance of the sensor shall be carried out by suitably trained personnel in accordance with the applicable code of practice e g EN 60079 17 The persons who have studied this UM have been briefed on safety precautions when operating electrical equipment intended for operation in the explosion hazardous zones in the established order are admitted to operate the sensor Repair of the sensor
10. X 03 X XX X X USER MANUAL Appendix A Sensor types and characteristics MIPEX 03 B RX C D Ls Output format 1 analog 3 pins pellistors replacement 2 digital and analog 5 pins 3 digital 4 pins Construction 1 stainless steel Standard 2 stainless steel with side holes Fast response 3 plastic Application calibration gas and range X temperature class and accuracy see Table 5 for details Target gas 1 CH4 methane 2 C3H8 CnHm hydrocarbons 3 CO2 carbon dioxide 4 CHA CH4 C2H6 acc to IEC 60079 29 1 MIPEX model number REV 0 7 Dated 14 April 2015 17 Table 2 MIPEX 03 X XX 1 X types interfaces and overall dimensions stainless steel Part number Sensor type Weight g ESAT 413347 006 MIPEX 03 1 XX 1 1 01 2 304 4 C3H8 02 3 XX 1 1 CO2 03 4 XX 1 1 CH4 CH4 C2He 04 1 XX 1 2 CH4 05 2 XX 1 2 C3H8 06 3 XX 1 2 CO 07 4 XX 1 2 CH4 CH4 C2H6 08 1 XX 1 3 CH4 09 2 XX 1 3 C3H8 10 3 XX 1 3 CO2 4 XX 1 3 CH4 CH4 C2H6 20 14max sa WANN GZ Z ee Ah JJ gt CNNNNNNNNNNNNS n m NN m P Hi 3 As avs Jg aN li REV 0 7 Dated 14 April 2015 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL Table 3 MIPEX 03 X XX 2 X types interfaces and overall dimensions stainless steel with side holes Part number Sensor type C3H8
11. alue Conc1 scaled concentration should get established equal to a value assigned according to command CALB AAAA The scale coefficient shall be stored in the module memory up to the next calibration d The CGM No 3 is connected and the sensor readings are checked via digital serial RS 232 If the requirements to the sensor error are not fulfilled in accordance with Table 5 the procedure of setting zero and calibration shall be repeated In case of a repeated non compliance of the sensor readings to the value of concentration of CGM No 3 the sensor is subject to replacement and dispatching to the Manufacturer for repair REV 0 7 Dated 14 April 2015 29 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL For MIPEX 03 with analog output see chapter 6 Gas adapter NF MIPEX 03 USB cable lt PC USB converter Fig 11 Typical scheme of MIPEX 03 calibration List of CGM used for checking IR gas sensors MIPEX 03 The recalculation to of LEL shall be effected in accordance with the following formula for concentration expressed in volume fraction vol Irsa C h where LFSCL is LEL component content in volume fraction C h LEL of component constant C h 4 4 for methane C h 1 7 for propane Table 9 CGM used for CH4 calibration gas CGM Component Composition Permissible Limits of Number as Nos composition o
12. ata The lead byte Conc1H transmitted first low byte Conc1L at the end of response The command 9 X is initiate regular transmitting of gas concentration data to UART Here X is a value in range 0 9 ASCII proportion to standard operating period of the sensor 1 28 sec Structure of and X commands are shown in the Table 6 F command returns the detailed information about working condition of the sensor Response on F command is 5 byte in ASCII separated by 09h Structure of F command response is shown in Table 7 REV 0 7 Dated 14 April 2015 24 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL Table 6 Structure of and X commands Command 40h ODh response Command x 40 2A x 0D response byte byte number and data number and data Table 7 Structure of F command response Command F 46 0D response Byte number Byte data Data description 1 OEh Special character 2 6 Termo Sensor temperature in ADC readings 7 09h Tabulation 8 12 lt Stz gt Ratio Us Uref with temperature index 13 09h Tabulation 14 18 Us Operating signal in ADC readings 19 09h Tabulation 20 24 Uref Reference signal in ADC readings 25 09h Tabulation 26 30 5120 Ratio lt Stz gt with manual zeroing settings ZERO 31 09h Tabulation 32 36 Stz Ratio 5120 with drift compensation algorithm 37 09h Tabulation 38 42 Stzkt Ratio Stz with coefficient of temperature sens
13. dication from 20 C whichever value is greater in temperature range from 10 C to 40 C test 10 C 20 C 40 C 10 LEL or 20 96 of indication from 20 C in temperature ranges from 40 C to 10 C and from 40 C to 60 C test 25 C 20 C 55 C 5 LEL or 30 of indication from 100kPa test 80kPa 100kPa 120kPa 5 LEL or 15 of indication from the indication at adjustment at 40 C test 20 RH 50 RH 90 RH 21 Appendix B Connection diagram EXPLOSION HAZARDOUS AREA MIPEX 03 X XX X 1 Combined input parameters Intrinsically safe gla Jr power supply and o monitoring system Fig 6 Connection diagram for MIPEX 03 X XX X 1 EXPLOSION HAZARDOUS AREA MIPEX 03 X XX X 2 Combined input parameters Anin Intrinsically safe eres power supply and i ae monitoring system Fig 7 Connection diagram for MIPEX 03 X XX X 2 EXPLOSION HAZARDOUS AREA MIPEX 03 X XX X 3 Combined input parameters ma E E Intrinsically cafe pr eden power supply and ae monitoring system Fig 8 Connection diagram for MIPEX 03 X XX X 3 REV 0 7 Dated 14 April 2015 22 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL USB MIPEX USB convenrter Fig 9 Connection diagram for MIPEX 03 with USB MIPEX converter during testing REV 0 7 Dated 14 April 2015 23 Appendix C UART communication protocol Firmware release 25 6 Always check the command syntax before sendin
14. e the packing Check presence of the certification marking ensure absence of mechanical injuries 5 2 Installation Use intrinsic safety connection given in Appendix B 5 2 1 Use recommended sockets Cambion 450 3326 01 06 00 for the sensor connection or similar Sensor pinout is shown in Appendix A 5 2 2 Provide power supply of the sensor from power sources featuring nominal range of output DC voltage of not less than 3 V and not more than 5 V output power PO not less than 0 02 W and not more than 0 25 W in accordance with requirements of standards IEC 60079 0 2004 60079 11 2006 For all MIPEX 03 modification polarity of power supply does not matter 5 2 3 The transceiver of serial interface UART for MIPEX 03 X XX X 2 and MIPEX 03 X XX X 3 should meet the requirements of standards IEC 60079 0 60079 11 Communication parameters UART transceiver are following HIGH logic level for TxD line of sensor is 2 8V HIGH logic level for RxD should be at range of 2 8V 3 3 V LOW logic level 0 V Maximum output current of UART not more than 25 mA REV 0 7 Dated 14 April 2015 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL 5 2 4 Analog output AnOut for MIPEX 03 X XX X 1 and MIPEX 03 X XX X 2 should be connected to R load Recommended H load is 10kOhm Maximum output current of AnOut is 10 mA MIPEX 03 has pulsed power consumption Maximum current may shortly rise up to 10 mA during 10ms pulse length
15. f measured deviation permissible per State according component limits vol error of Register or to text vol 96 qualification Standard 96 of LEL vol 96 designation 1 N2 100 GOST 9392 74 2 CH4 2 2 50 0 25 0 04 3883 87 3 CH 4 15 94 0 25 0 04 3883 87 4 CH 40 12 5 0 4 3892 87 REV 0 7 Dated 14 April 2015 30 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL Table 10 CGM used for C3H8 calibration gas CGM Component Composition Permissible Limits of Number as Nos composition of measured deviation permissible per State according component limits vol error of Register or to text vol 96 qualification Standard 96 of LEL vol 96 designation 1 No 100 GOST 9392 74 2 0 85 50 0 05 0 015 5328 90 3 1 6 94 0 1 0 05 06 01 648 4 3 40 200 1 00 0 5 Table 11 CGM used for CO2 calibration gas CGM Component Composition Permissible Limits of Number as Nos composition of measured deviation permissible per State according component limits vol error of Register or to text vol qualification Standard of LEL vol designation 1 N2 100 GOST 9392 74 2 1 0 05 0 015 3 2 5 0 1 0 05 REV 0 7 Dated 14 April 2015 31 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL Appendix E Attaching the dust filter Tools requ
16. fficients and write the same data for all memory cells e Change the temperature in range 40 to 60 C with about 12 5 C interval Stay the sensor in each temperature interval for some minutes to fix temperature fluctuation into the sensor Write data by ZERO command for the current temperature interval and signal ratio Stz e Repeat ZERO command for all temperature intervals see Fig 10 ZERO ZERO ZERO 40 27 5 60 Fig 10 Scheme of setting temperature coefficients in automatic mode Manual mode procedure It is possible to calculate temperature coefficients if the user fined the most preferred temperature data and signal ratio lt Stz gt REV 0 7 Dated 14 April 2015 27 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL Use ZERO XXXXX YYYYY command to set user data Here XXXXX temperature data YYYYY signal ratio lt Stz gt Data in the table are arranged automatically The new data is rewrite previous coefficients REV 0 7 Dated 14 April 2015 28 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL Appendix D Sensor zeroing and calibration 1 Calibration is available using UART only 2 Closing gas sampling holes of the sensor impairs response time To achieve correct data during the tests be sure there are no excessive force on sensor housing 10096 humidity dewpoint A out of specified range of environmental pressure fast temperature change more than 0 6 C min dust if dust fil
17. g The commands other than specified in current user manual are not allowed Otherwise it might bring to malfunction of the sensor In earlier firmware versions some commands modes are not available 1 General information e MIPEX 03 communication protocol provides data exchange based on Request Response principle e Transducer has fix 9600 baud rate e Electrical parameters of UART transceiver are pointed in 5 2 3 Data format 8 bit message 1 stop bit no parity Frame format if other is not specified the symbols of commands are ASCII coded carriage return CR symbol must be after each command all symbols in command must be sent in one word Delay between symbols are not more than 40 ms The words of the response are separated with a tabulation symbol 09h or space symbol 20h specified below for every command For some commands request is not intended to answer according to following protocol Sensor returns confirmation or rejection of command Request on correct command with correct data returns command name with OK separated by 09h or 20h Request on correct command with wrong data returns command name with FAULT separated by 09h or 20h There is no reaction on wrong command 2 Data request command There are several types of commands for analyzing sensor mode or request factory settings or sensor properties 2 1 Operating commands for the sensor The command is 16 bit concentration d
18. he operating wavelength 20 and does not affect radiation of the reference operating wavelength Ar The amplitude lo of the light sensitive cell operating signal changes upon changing concentration in accordance with equation lo lr exp K A0 K Ar CL 1 where K coefficient of absorption at a given wavelength L optical length of cell C measured concentration of gas lo Ir amplitude of signals at light sensitive cell The concentration of gas is Ln lo Ir L K Ao K Ar 2 Using differential dual wavelength method of registration allows eliminating influence of water vapor contamination of optical elements and other non selective hindrances affecting both channels similarly The sensor structure contains an optical cell with a mirror system infrared light emitting diode LED LED driver receivers of Signal and Reference channels analog amplifiers microcontroller and supply voltages unit The microcontroller of the sensor performs storage of unique calibration constants calculation of gas concentration based on measured results communication though UART and analog output interface The sensor is enabled on power is up and disabled on power is down REV 0 7 Dated 14 April 2015 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL 2 TECHNICAL SPECIFICATIONS Table 1 Technical specification
19. ing the sensor s characteristics temperature class calibration rage and accuracy The answer is ASCII 2 byte and ODh symbol See Table 5 for details ID request of ID The answer on this command returns the summary info about sensor type serial number characteristics and firmware version ASCII For example ID Request 02019 08035278 02 MIPEX 2 25 6 Response 3 Sensor setting and calibration commands The following commands are used for sensor calibration and settings ZERO setting zero in whole operating temperature range The command initiate calculation and store a unifying zero coefficient to the memory In case of supplying this command concentration Conc 0 Conc1 0 relation Stz is corrected to 10000 see Table 7 CALB AAAA span gas calibration command AAAA is Control Gas Mixture CGM concentration value in Vol 100 For example AAAA 0198 corresponds to 1 98 Vol See Appendix D for detailed procedure Applying the command be sure that following conditions are met e Entered value must not be different from current readings more than 20 times with regard to all units converted to Vol REV 0 7 Dated 14 April 2015 26 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL e concentration must be more than 0 2 Vol e If these conditions are not accomplished sensor responds CALB AAAA FAULT INIT return to a factory calibration settings CALB1 XXXXX writing scale coefficient for concentration
20. ion relative to minimum output voltage pellistor replacement NEGATIVE adaptation Depends on sensor polarity in user device the commands DACMODE2 DACMODE3 could work in converse modes Default setting of a Digital Analog Converter DAC is 0 4 2 0V Using analog output in DACMODE1 mode is possible to adjust DAC range using command SETDAC1 XXXXX to set MIN output and SETDAC2 XXXXX to set for MAX output where XXXXX is DAC readings in range 0 04095 To request current DAC settings send SETDAC The response is relative to MIN and MAX output AnOut Voltage 2 0V Gas concentration Fig 3 Uanou C for DACMODE1 O Vol 5 Vol or 100 Vol REV 0 7 Dated 14 April 2015 11 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL AnOut Voltage Usup 595 Vol O Vol or 100 Vol Gas concentration Fig 4 Uanou C for DACMODE2 AnOut Voltage Usup Usup 2 5 Vol Gas 100 Vol concentration Fig 5 Uanour C for DACMODE3 0 Vol 6 2 Setting up the output range ALMH XXXX is ASCII command to setting up the concentration value XXXX in 01 100 for upper voltage output level for any DACMODE For example to set up measuring range 0 5 Vol of CH4 for full scale voltage output send in ALMH 0500 command To set up 100 Vol send in ALMH 9999 6 3C Uanout and conversion MODE C Uanout Uanout C ALMH U 94
21. ired tweezers cloths Time required 2 3 min e Perform this work well illuminated and well ventilated room e After attaching the dust filter perform the procedure of the sensor zeroing for details see Appendix D for details To attach the dust filter perform the following steps e Wipe the sensor top surface with a cloth that is dampened with absolute alcohol For the MIPEX 03 X XX 2 X sensors perform the same operation on the side surface e Retrieve the teflon tape bonded dust filters from packing e Detach a filter from the teflon tape with tweezers e Align the filter to the top surface center with tweezers and then press on it For the MIPEX 03 X XX 2 X sensors perform the same operation on the side surface After the dust filter was attached zeroing procedure must be performed see Appendix D for details REV 0 7 Dated 14 April 2015 32
22. itivity 43 09h Tabulation 44 48 Conc Concentration according to a factory calibration 49 09h Tabulation 50 54 Conc1 Concentration scaled by user 55 09h Tabulation 56 60 Status Status word see Table 8 61 09h Tabulation 62 71 Sn Sensor serial number 70 09h Tabulation 71 ControlSum Checksum based on XOR 72 09h Tabulation 73 ODh Carriage return REV 0 7 Dated 14 April 2015 25 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL Table 8 Status word description Status word Description 00 Normal mode static temperature 10 Warm up 11 Sensor rate more than 1 Hz 20 Non statically temperature operating mode from 0 15 to 0 6 grad min 24 Dynamical temperature operating mode more than 0 6 grad min no compensation 22 Temperature is changed faster than 2 grad min 30 Values of Signal or Ref are lower than tolerance 31 Signals ratio 5120 is exceed upper limit 40 Out of operation temperature range 50 Abrupt change of signal or high noise level 51 Complex status contact support for details 90 Firmware corruption 2 2 Request commands of factory settings and properties SREV request the firmware version For example send SREV answer MIPEX 925 6 SRAL request the sensor serial number SN The answer is ASCII 8 byte and ODh symbol RT request of sensor type The answer is ASCII 5 byte and ODh symbol the codes listing is available upon request RX check
23. mip SMALL SIZE EXPLOSIVE GAS MEASURING SENSOR MIPEX 03 X XX X X USER MANUAL ESAT 413347 006 UM ES E Opp Intertek REV 0 7 Dated 14 April 2015 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL Table of Contents INTRODUCTION u 1 DESCRIPTION esoresansvnvnnnovennnnvnennnnvevnnsvnennnnrevnnnevennnevevnnnnrennnnvevnnnevenene 2 TECHNICAL SPECIFICATIONS eere eere rennen enn 3 INTRINSICALLY SAFETY J A I Ia aaa sassa rave rines vis 4 PRECAUTIONS eee 5 INSTALLATION AND SERVICES ee eeeee eere eene enne 6 DESCRIPTION OF ANALOG OUTPULT 7 STORAGE AND 8 WARRANTY 9 GONTACTS uu E E Appendix A Sensor types and characteristics Appendix B Connection diagram Appendix C UART communication Appendix D Sensor zeroing and calibration Appendix E Attaching the dust filter J J List of abbreviations CGM Control Gas Mixture EMI Electromag
24. nditions pointed in Table 1 The atmosphere of storage premises should be free from harmful admixtures provoking corrosion REV 0 7 Dated 14 April 2015 14 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL 8 WARRANTY The Manufacturer guarantees compliance of the sensors with specifications and requirements stated in this UM if Customer meets conditions of operation transportation and storage During the warranty period Manufacturer has the right to replace or repair all the products that according to his unquestionable judgement are found to be defective if defect is due to a fault of Manufacturer The warranty period is 24 months since the date of sensor shipment to a Customer The date of shipment is registered in the ESAT 413347 006 PS datasheet Manufacturer is not responsible for the sensors failure and discontinue in case of e violations of conditions of operation transportation and storage stated in UM e sensor has marks of unauthorized repair e mechanical damages appeared after handover the sensors to Customer effect of temperature and pressure beyond conditions chemical erosion ingress of foreign substances inside the body of the sensor e defects due to electrical interface unspecified by UM and other documentation conveyed to the Customer e defects due to force majeure circumstances disastrous occurrences intended or reckless act of Customer or third party e defect or failure due to installing damaging
25. netic Interference LEL Lower Explosive Limit MCU Microcontroller Unit NDIR Non Dispersive Infra Red UART Universal Asynchronous Receiver Transmitter REV 0 7 Dated 14 April 2015 TE 22 eiere 24 29 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL INTRODUCTION MIPEX 03 X XX X X hereinafter sensor or MIPEX 03 is the gas sensor which is intended for automatic continuous measurement of concentration of hydrocarbons in explosive areas and carbon dioxide Sensor can be used as part of gas analyzing equipment of groups I and ll according to IEC 60079 0 in the explosion hazardous zones of classes 0 1 2 according to IEC 60079 10 1 and Class Division 1 according to UL913 CAN CSA C22 2 No 157 92 Optosense LLC reserves the right to update and change current UM in parts exclude intrinsic safety parameters and accompanied information specified below REV 0 7 Dated 14 April 2015 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL 1 DESCRIPTION The principle of sensor operation is based on NDIR technology The infrared radiation of a light emitting diode permeates a measuring diffusion type gas cell and gets at 2 light sensitive cells one of them is responsive to radiation in the range of wavelength of 3 25 to 3 45 um only while the other one registers radiation in the range of wavelength of 3 1 to 3 25 and 3 45 to 3 7 um The investigated gas present in the cell absorbs radiation of t
26. shall be carried out only by personal of manufacturer or authorized by manufacturer It is interdict to discharge the control gas mixture CGM to the atmosphere during sensor calibration Do not allow the contact of sensor with aggressive substances e g acidic liquids or gases that may attack metals or solvents that may affect polymeric materials REV 0 7 Dated 14 April 2015 ESAT 413347 006 UM MIPEX 03 X XX X X USER MANUAL 5 INSTALLATION AND SERVICES MIPEX 03 X XX 3 X POTENTIAL ELECTROSTATIC CHARGING HAZARD CLEAN ONLY WITH A DAMP CLOTH The external part of the sensor can be sourced of risk of electrostatic discharge Take it into account during installation and operation of the sensor in end user equipment The MIPEX 03 X XX 1 X and MIPEX 03 X XX 2 X models of the equipment were tested and found to hold 18 3pF maximum capacitance Connection should be made via PCB sockets Soldering to the pins will seriously damage the sensor Excessive force on sensor housing is not allowed no more than 2 MPa applied to reflecting cover center or on at any point of middle part side surface and no more 200 MPa applied to boundary of reflecting cover Metrological properties are not supported in ambient temperature gradient faster than 0 6 C min 5 1 Preparation 5 1 1 If the sensor has been kept in the transportation package at temperature lower than 0 C hold it at temperature of 10 35 C for at least one hour 5 1 2 Remov
27. ter isn t used sensor rate no more than 1Hz The setting of zero and calibration of the sensor is performed in the course of the primary installation into a gas analyzer as well as annually during preparation to conducting a check In any cases the setting zero should be done before calibration The devices given in Fig 11 and the CGM are used in the course of conducting operations The operations on setting zero and calibration of the sensor shall be carried out by a qualified specialist outside of the explosion hazardous zone at normal conditions in the following sequence a The sensor shall be connected in accordance with Fig 11 Converter USB should be connected to the sensor and PC b Setting to zero use the following method In 5 min after power supply the pure nitrogen N2 CGM No 1 depends on used calibration gas see the Table 9 Table 10 or Table 11 is connected in 1 min after CGM supply a command ZERO of zero setting is supplied the sensor readings should get set to zero with respect to digital interface in accordance with Appendix C Additionally it is possible to set zero during the warm up period Switch ON OFF the sensor two times during the first minute Sensor will starts zeroing algorithm automatically after the third switch ON c The CGM No 2 is connected in 1 min after CGM supply a CALB AAAA command is given where AAAA is a value of CGM concentration e g 1 9896 vol 0198 After that the v
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