5S MkIII CO2 Sensor OEM User Manual
Contents
1. 8 125 O g 100 a a 75 9 50 Es 25 ror 25 C X cog Error 50 C CO2 0 0 1000 2000 3000 4000 5000 ppm CO2 4 4 2 CO error over temperature for different CO levels CO2 error over temperature for different CO2 levels N O O E Q Q o o 50 CO2 Oppm x CO2 250ppm o CO2 500ppm CO2 1000ppm 25 C02 2500ppm CO2 5000ppm 0 5 5 15 25 35 45 55 Temperature C Document Ref 5S3 802 02 January 201 1 Page 18 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 45 10 000ppm atmospheric pressure CO sensor 4 5 1 CO error at constant temperature assuming calibration at 25 C 300 g 250 O g 200 a w 150 amp 100 s 50 Se 3 Error 50 C CO2 0 0 2000 4000 6000 8000 10000 ppm CO2 4 5 2 CO error over temperature for different CO levels CO2 error over temperature for different CO2 levels 300 g 250 E 200 NYJ 7 a 150 NY F o 5 100 SS Apn Oppm QA Lat S 50 SS C02 Penis CO2 5000ppm CO 10000ppm 0 5 5 15 25 35 45 52. 2 5 O 2 O 8 15 E ae z D SSS e Bos RA Sm SH CO2 25mbar 0 5 5 15 25 35 45 55 Temperature C Document Ref 5S3 802 02 January 2011 Page 16 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 4 3 100mbar 0 8 10 barA hyperbaric CO sensor 4 3 1 CO error at constant temperature 10 ue Rm E Error 25 C mbar CO2 N 9 4 Error 10 C mbar CO2 o 8 H Error 50 C mbar CO2 O 7 Error 25 C 0 8 10barA mbar CO2 G Error 10 C 0 8 10barA mbar CO2 t 6 H Error 50 C 0 8 10barA mbar CO2 a 5 i 9 4 o 3 s 2 1 0 0 10 20 30 40 50 60 70 80 90 100 mbar CO2 4 3 2 CO error over temperature pressure range 0 8 10bar 10 E 9 O 8 7 2 6 E 9 2 4 D CO2 Ombar x 3 C02 5mbar 2 CO 10mbar C02 20mbar 1 CO2 50mbar C02 100mbar 0 i 5 5 15 25 35 45 55 Temperature C Document Ref 5S3 802 02 January 2011 Page 17 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 4 4 5000ppm atmospheric pressure CO sensor 4 4 1 CO error at constant temperature assuming calibration at 25 C 150
3. 5000ppm atmospheric See section 4 3 pressure CO 10000ppm atmospheric See section 4 5 pressure CO 296 atmospheric pressure See section 4 6 CO 5 atmospheric pressure See section 4 7 CO 10 atmospheric pressure See section 4 8 CO 2096 atmospheric pressure See section 4 9 CO 10096 atmospheric pressure See section 4 10 O 2000mbar 1 to 10 barA See section 4 11 Os 100 atmospheric pressure See section 4 12 Warmup time From power on 40 S Flow rate range 0 1 2 0 litres min Notes ANALOX looking after the air YOU breathe Document Ref 5S3 802 02 January 2011 Page 13 Analox 5S MkIII CO2 Sensor OEM User Manual 1 The sensor will not be damaged by use over the pressure range 500 to 1500mbar See the section on the effect of pressure below 2 All specifications assume the ambient pressure is 1000mbar excluding hyperbaric sensors The sensor actually measures partial pressure of COs not percentage concentration 3 See section 2 7 for more information 41 Explanation of measurement accuracy specifications 411 COs sensors The CO sensor actually measures partial pressure however for sensors used at atmospheric pressure only it is often convenient to talk in terms of ppm or percentages The CO sensor specification is expressed as the sum of four error terms e A fixed quantity e A proportion of the sensor s reading e Afixed quantity per degree C of temperature shift from the t
4. NALO looking after the air YOU breathe 5S MkIill CO2 Sensor OEM User Manual Analox Sensor Technology Ltd 15 Ellerbeck Court Stokesley Business Park North Yorkshire TS9 5PT UK T 44 0 1642 711400 F 44 0 1642 713900 W www analox net E info analox net Analox 5S MkIII CO2 Sensor OEM User Manual List of Contents uud nnn 4 Tel Safety WalDlmYgs Sa ee ne Pa E 4 1 1 1 Standard alkaline oxygen Cell WWW 4 I MEE ACID OXY GSM Cell tes wi ot as ot eek ott aa aan ena ana Rn an 4 1 2 Handling precautions for the 5S3 i ii oooooooWoWoWo WoW WWW WWW 4 1 8 Glossary of abbreviatiOnS ooooooo o Wo WWW Woo mom WWW WWW mm 5 PEE at UE a a MP D oa ee ee eee n 6 2 1 Physical mountiig i aan hbs aa aa aa 6 2 2 GAS COMMECHONS ben ea REFR Re ER FRRR PEE PRERPRR SE 6 2 3 Oxygen sensor mounting where applicable oooooooW o W Woo 7 2 4 Electrical Connections recie tee rine eere aan aan 7 2 4 1 Analogue oUtpUL eiii rr i e ERR nai ERR Ra Ea ana 8 2 42 RBS485 OULDUL eere ee ed a eR RAN eda eid ea eee reus 8 2 5 Internal terminal rail ooooooooooooooooooooo0oo0oooo nnn nnn nn n nn nnn nnne nnns nnns 8 2 6 Analogue output configuratiOn oooooooooWoWo WWW Wc WWW Wan 10 2 4 POWET SOURCES oekoer sn aa ebi 11 2 8 USB CO
5. Error 10 C CO2 0 2 oa 0 0 2 5 5 7 5 10 125 15 175 20 CO2 4 9 2 CO error over temperature for different CO levels CO2 error over temperature for different CO2 levels 1 4 1 2 O 9 1 8 0 8 Bos Za S An 2 RI co 02 NA CO2 20 0 5 5 15 25 35 45 55 Temperature C Document Ref 5S3 802 02 January 2011 Page 23 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 4 10 100 atmospheric pressure CO sensor 4 10 1 CO error at constant temperature assuming calibration at 25 C Max error CO2 Error 10 C CO2 Error 25 CO2 Error 50 CO2 0 10 20 30 40 50 60 70 80 90 100 CO2 4 10 2 CO error over temperature for different CO levels CO2 error over temperature for different CO2 levels CO2 0 00 CO2 5 00 CO 10 00 CO 20 00 CO 50 00 CO 100 00 Max error CO2 5 5 15 25 35 45 55 Temperature C Document Ref 5S3 802 02 January 2011 Page 24 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 4 11 2000mbar 1 to 10 barA hyperbaric O2 sensor 4 11 1 Op error at constant temperature assuming calibration at
6. Page 26 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 4 13 100 atmospheric pressure acid electrolyte O sensor Analox are not able to provide our own specifications as yet for this sensor This is a special sensor designed for use in areas with CO levels in excess of 1 The manufacturer states the following e Linearity within 2 of full scale e Temperature compensation less than 3 from 15 C to 40 C Document Ref 5S3 802 02 January 201 1 Page 27 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 5 Spare parts 5 1 Oxygen cell 9212 9H Sub Analox part number 9100 9212 9HSUB Oxygen cells are time degradable items The sensor will typically last for 3 years when exposed to normal air at normal atmospheric pressure Regular use in either high temperature environments or in situations using partial pressures of oxygen greater than 209 mbar ppO will cause the sensor to deteriorate more rapidly and hence shorten its life For instance exposure to pure oxygen at standard atmospheric pressure would effectively consume the oxygen sensor approximately five times faster than normal If maintained in this atmosphere continuously the sensor would need replacing typically every 6 months However such exposure would represent fairly severe circumstances and is not considered likely Most commercial diving and military customers tend to repla
7. signal 8 Earth for cable screen 9 Isolated voltage output positive 10 Isolated voltage output negative 11 Isolated current output positive 12 Isolated current output controlled 13 Isolated current output negative 14 RS485 A 15 RS485 B 16 RS485 A use for 1200 termination resistor or for daisy chaining devices 17 RS485 B use for 1200 termination resistor or for daisy chaining devices Document Ref 5S3 802 02 January 201 1 Page 8 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 18 5V input 19 OV input 20 Earth 21 8V 36V input 22 OV input 23 External LED positive 24 External LED negative Document Ref 5S3 802 02 January 2011 Page 9 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 2 6 Analogue output configuration An isolated analogue output is provided The isolation is rated to 1kV The output circuitry consists of a voltage output provided by a buffered 12 bit DAC running from a 2 5V supply and a current output controlled by the DAC It is possible to simultaneously connect the voltage output and the current output but they are not isolated from each other and cannot be independently calibrated because they share a common DAC The analogue output has three terminals it may be used with either an external voltage or it can source the driving current itself See th
8. temperature assuming calibration at 25 C pressure range 1 TO 10 DAA Bana 25 4 11 2 Oe error over temperature for different Os levels pressure range 1 to 10 barA 25 4 12 100 atmospheric pressure alkaline electrolyte Os sensor 26 4121 Op error at constant temperature assuming calibration at 25 C 26 4 12 2 CO error over temperature for different CO levels iicoooooo 26 413 100 atmospheric pressure acid electrolyte Os sensor iooooooooWoo 27 Bi Spale paS e mee 28 5 1 2Oxygenccell 9212 9PH SUD ena en en aa ai 28 5 2 Oxygen cell acid electrolyte 28 5 9 URlowadaptera at tea Ra a ag Non Inn a ta 28 6 Appendices bean naa Ra Aa 29 6 1 Dimensions amp mounting information 29 6 1 1 Dual port CO instruments ppm ranges oooooW Woo om Woo 29 6 1 2 Single port CO only instruments 96 ranges iio ooo o oooWoWo W Woo 29 Document Ref 5S3 802 02 January 201 1 Page 3 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 1 Introduction This manual is of a more technical nature than the standard 5S3 User Manual 583 800 xx It is intended for the OEM user of the 5S3 who will wish to better understand the sensor and be able to configure some of the options It also covers the oxygen sensor option of the 5S3 It is a general 5S3 OEM Use
9. 15 f CO2 0 00 0 1 CO 0 25 Max error CO2 CO 0 50 CO 1 00 0 05 002 2 50 CO 5 00 5 5 15 25 35 45 55 Temperature C Document Ref 5S3 802 02 January 2011 Page 21 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 4 8 10 atmospheric pressure CO sensor 481 CO error at constant temperature assuming calibration at 25 C a 8 0 5 2 04 O 0 3 amp 02 Error 9 10T CO 04 BEIM 0 0 1 2 3 4 5 6 7 8 9 10 CO2 4 8 2 CO error over temperature for different CO levels CO2 error over temperature for different CO2 levels Max error Yo CO2 0 3 Co02 0 00 0 2 CO 0 50 CO 1 00 CO 2 00 0 1 CO2 5 00 CO 10 00 0 5 5 15 25 35 45 55 Temperature C Document Ref 5S3 802 02 January 2011 Page 22 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 4 9 20 atmospheric pressure CO sensor 4 9 1 CO error at constant temperature assuming calibration at 25 C 1 4 T 12 N Q O 2 0g o 0 6 o 0 4
10. 25 C pressure range 1 to 10 barA 150 125 100 Max error mbar O2 N O1 Error 9 10 C mbar O2 Error 25 mbar O2 Error 50 C mbar O2 0 250 500 750 1000 1250 1500 1750 2000 mbar O2 4 11 2 O error over temperature for different O2 levels pressure range 1 to 10 barA 02 Ombar 02 100mbar 02 250mbar 02 500mbar 02 1000mbar Max error mbar O2 5 5 15 25 35 45 55 Temperature C Document Ref 5S3 802 02 January 2011 Page 25 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 4 12 100 atmospheric pressure alkaline electrolyte Op sensor 4 12 1 Op error at constant temperature assuming calibration at 25 C 7 6 N O 5 o o9 S2 Error 10 C 9602 1 Error 25 C 02 Error 50 02 0 db a 0 10 20 30 40 50 60 70 80 90 100 02 4 12 2 CO error over temperature for different CO levels 02 0 00 02 5 00 N wo A GC O N Max error O2 02 10 00 2 20 00 1 02 50 00 5 5 15 25 35 45 55 Temperature C Document Ref 5S3 802 02 January 2011
11. 5 Temperature C Document Ref 5S3 802 02 January 201 1 Page 19 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 4 6 2 atmospheric pressure CO sensor 4 6 1 CO error at constant temperature assuming calibration at 25 C Max error CO2 Error 10 C CO2 Error 25 C CO2 Error 50 C CO2 0 025 05 0 75 1 1 25 1 5 1 75 2 CO2 4 6 2 CO error over temperature for different CO levels CO2 error over temperature for different CO2 levels CO 0 00 CO 0 05 CO 0 25 CO 0 50 CO 1 00 CO 2 00 Max error CO2 5 5 15 25 35 45 55 Temperature C Document Ref 5S3 802 02 January 2011 Page 20 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 4 7 5 atmospheric pressure CO sensor 4 7 1 CO error at constant temperature assuming calibration at 25 C 0 35 0 3 0 25 0 2 0 15 0 1 Max error CO2 Error 10 C CO2 0 05 Error 25 C CO2 Error 50 C CO2 CO2 4 7 2 CO error over temperature for different CO levels CO2 error over temperature for different CO2 levels 0 35 0 3 0 25 0 2 R 0
12. 6 1 CO error at constant temperature assuming calibration at 25 C 20 4 6 2 CO error over temperature for different CO levels iicooo ooo 20 4 7 5 atmospheric pressure CO SENSOT ooooocoWoWoW Wo WoWoWo W oW Wo 21 4 7 1 CO error at constant temperature assuming calibration at 25 C 21 Document Ref 5S3 802 02 January 201 1 Page 2 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 4 7 2 CO error over temperature for different CO levels iooo ooo 21 4 8 10 atmospheric pressure CO sensor oooooWoWo Wo WWW oom WWW Woo 22 4 8 1 CO error at constant temperature assuming calibration at 25 C 22 4 8 2 CO error over temperature for different CO levels iioooooo 22 4 9 2096 atmospheric pressure CO sensor ooooooWo WoW Wo Woomo WoW Woo 23 4 9 1 CO error at constant temperature assuming calibration at 25 C 23 4 9 2 CO error over temperature for different CO levels iico ooooooo 23 4 10 100 atmospheric pressure CO SENSOF ooooooWo Wo WWW Woo 24 410 1 CO error at constant temperature assuming calibration at 25 0 24 4 10 2 CO error over temperature for different CO levels iiWooooooo 24 4 11 2000mbar 1 to 10 barA hyperbaric Os SENSOF oooooooWo WoW Woo 25 4 11 1 Ob error at constant
13. NNEC UOI LAN 11 IW exem 11 3 OpetallOni ettet deb ia ARA NR EBENE aa Ba Bea aan Ba 12 3 1 Status indicatiONS ooooo oo oo 12 4 SPCCIHICAUONS ausser temen nne Catalan atattutauseeserptetrevseasteesssugteesssasteesssesteressusteestse 13 4 1 Explanation of measurement accuracy specifications ooo ooWWoWoo 14 4 1 1 CO SEN ina Ne aan aini AAA AD AAA HENNA 14 A2 OXYOCNISENSONS aa ONA ENEN AANE EA ANANE 15 42 25mbar 0 8 10 barA hyperbaric CO sensor iiioooooooooo 16 4 2 1 CO error at constant temperature Woo 16 4 2 2 COs error over temperature pressure range 0 8 10barA s 16 4 3 100mbar 0 8 10 barA hyperbaric CO sensor iioooo ooooooo 17 4 3 1 CO error at constant temperature sssssse nnns 17 4 3 2 CO error over temperature pressure range 0 8 10bar iooo oo 17 44 5000ppm atmospheric pressure CO sensor o ooooooWoWoWoooo 18 4 4 1 CO error at constant temperature assuming calibration at 25 C 18 4 4 2 CO error over temperature for different CO levels oooooo 18 4 5 10 000ppm atmospheric pressure CO sensor ssssss 19 4 5 1 CO error at constant temperature assuming calibration at 25 C 19 4 5 2 CO error over temperature for different CO levels icooooooo 19 4 6 2 atmospheric pressure CO SENSOT ooooooWoWoW WWW Wo 20 4
14. al leakage from either the sensor assembly or from replacement cells use rubber gloves and wear chemical splash goggles to handle and clean up Thoroughly rinse contaminated surfaces with water First Aid Procedures in the event of contact with leaks of electrolyte are as above 1 2 Handling precautions for the 5S3 The circuit boards within the enclosure are static sensitive and must be handled accordingly Care must also be taken not to touch the white gel that protects the pressure sensor The maximum rate of change of pressure that the unit should be exposed to is 2 bar minute If the oxygen cell is exposed to temperatures below 10 C it may suffer a permanent change in output and require re calibration Document Ref 5S3 802 02 January 201 1 Page 4 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 1 3 Glossary of abbreviations 5S3 Third generation Analox CO sensor ADC Analogue to Digital Converter ASST Analox Sensor Setup Tool bar Unit of pressure one standard atmosphere is 1 01325 bar CO Carbon dioxide CRC Cyclic redundancy check a technique for determining if a data packet has been corrupted CSV Comma Separated Variables DAC Digital to Analogue Converter DDB Direct Digitisation Bench an umbrella name for the 5S3 and MIR EEPROM Electrically Erasable Programmable Read Only Memory a t
15. ation Please contact Analox for details 2 9 EMC The 5S3 is compliant to relevant EU EMC standards The 5S3 has passed the type 2 heavy industrial immunity requirements of EN50270 Electromagnetic compatibility Electrical apparatus for the detection and measurement of combustible gases toxic gases or oxygen Maximum deviation under 10V m radiated immunity testing was 5 of sensor range The 5S3 has passed the type 1 light industrial emissions requirements of EN61000 6 3 Emission standard for residential commercial and light industrial environments Document Ref 5S3 802 02 January 201 1 Page 11 looking after the air YOU breathe ANALOX Analox 5S MkIII CO2 Sensor OEM User Manual 3 Operation During operation the unit continuously runs various self checks If a fault is detected then the output is driven over range to a nominal 20 5mA for current output and 2 5V for voltage output and the flash pattern of the green LED changes to a double flash If the sensor suffers a software failure then the flash pattern changes to a very rapid flash and again the output is driven over range After switch on the sensor takes about thirty seconds to warm up During this time the LED will provide very brief flashes the analogue output is driven over range and the Warmup flag is set After the warm up period completes the analogue output will be driven to be proportional to the CO concentration as per the specificat
16. ce the sensor at 12 18 or 24 months depending on their mode of usage typical temperatures and typical oxygen partial pressure in the application 5 2 Oxygen cell acid electrolyte Analox part number 9100 1600 This oxygen cell is suitable for measuring oxygen in the presence of significant quantities of CO and other acidic gases 5 3 Flow adapter Analox part number 8000 0069A This is intended for use with tube of 3 4mm internal diameter Gas can be piped into one port and will then circulate in close proximity to the sensors hydrophobic membrane before flowing out of the other Which port is used as inlet and which as outlet is not important ya Ge iN a Document Ref 5S3 802 02 January 201 1 Page 28 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 6 Appendices 6 1 Dimensions amp mounting information 6 1 1 Dual port CO instruments ppm ranges 115 0 6 0 115 Document Ref 5S3 802 02 January 2011 Page 29 ANALOX looking after the air YOU breathe
17. e An additional proportion of the sensor s reading per degree C of temperature shift from the temperature of calibration e Due to the inherent linearity of the oxygen cell no additional allowance is needed for hyperbaric use Note that in contrast to the CO sensor the temperature term is a percentage of reading per C not a fixed quantity per C If a product with better temperature stability is required please refer to our Mini Electrochemical Cell range of intelligent sensors They incorporate a more advanced temperature compensation algorithm Sensor range Basic accuracy Tempco 100 350ppm 1 of reading 0 2 of reading C 2000mbar 2 mbar 1 of reading 0 2 of reading C Document Ref 5S3 802 02 January 2011 Page 15 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 4 2 25mbar 0 8 10 barA hyperbaric CO sensor 4 2 1 CO error at constant temperature 25 4 Op Error 25 C mbar CO2 N Error 10 C mbar CO2 o 2 Error 50 C mbar CO2 O Error 25 C 0 8 10barA mbar CO2 G Error 10 C 0 8 10barA mbar CO2 Q 1 5 Error 50 C 0 8 10barA mbar CO2 E 2 O im s 0 5 0 0 5 10 15 20 25 mbar CO2 4 2 2 CO error over temperature pressure range 0 8 10barA
18. e Analox Sensor Setup Tool Please consult Analox for details Note that the sensor output may become slightly negative within the sensor s specifications For example a 5000ppm sensor is still in spec if it is reading 20ppm on pure helium In this case the 4 20mA output would produce 3 94mA Some PLCs indicate a fault under these conditions if you cannot re configure the PLC to avoid this then we would recommend configuring the sensor as a 5 20mA output please contact Analox for details 2 4 2 RS485 output By connecting to the appropriate terminals see section 2 5 RS485 communications are available with the sensor Using this data from both the CO and Os where applicable sensors can be obtained and calibration commands may be sent to the sensor The hardware protocol is 9600 baud 1 start bit 2 stop bits 8 data bits Two wire communications are utilised with the sensor only transmitting in reply to commands from the master Please see Application Note AN 001 for a description of the serial communication protocol with code and message examples 2 5 Internal terminal rail Terminal Function 1 O2 mV cell positive input 2 O mV cell negative input 3 Earth for cable screens 4 External pressure strain gauge positive supply 5 External pressure strain gauge negative supply 6 External pressure strain gauge positive signal 7 External pressure strain gauge negative
19. e following diagrams Configuration for customer supplied current 5S3 isolated current output OV OV Configuration for 5S3 supplied current 5S3 isolated current output Document Ref 5S3 802 02 January 2011 Page 10 looking after the air YOU breathe ANALOX Analox 5S MkIII CO2 Sensor OEM User Manual 2 7 Power sources The 5S3 has three power inputs e An 8V to 36V DC input which is stepped down to 5V This input is protected against reverse polarity connection e Adirect 5V DC input protected against reverse polarity connection e The USB input The 8V to 36V and 5V inputs are internally connected so with power fed into the 8V to 36V input 5V is available on the 5V terminals The unit should not be powered simultaneously from these two inputs Internal MOSFET switches prevent power being fed back to the USB power inlet If the unit is powered from USB and one of the other two inputs then the power is actually drawn from the other inputs not the USB input When the unit is powered from USB 5V is not available on the 5V terminals The 5V input feeds a step down voltage regulator the RS485 driver IC and the lamp Absolute maximum input voltage is 10V but this voltage is driven back through the RS485 outputs so it may damage the device at the other end of the RS485 bus 2 8 USB Connection The USB connector is intended to be used for factory setup and diagnostics It may also be used for calibr
20. emperature of calibration e A additional proportion of the sensor s reading for hyperbaric use For atmospheric pressure sensors the following apply Sensor range Basic accuracy Temperature sensitivity 1000ppm 25ppm CO 1 of reading 2 5ppm CO C 5000ppm t25ppm CO 1 of reading 2 5ppm CO C 10 000ppm 1 50ppm CO 1 of reading 5ppm CO C 2 0 02 CO 2 of reading 0 002 CO C 5 0 05 CO 2 of reading 0 005 CO C 10 0 1 CO 2 of reading 0 01 CO C 20 0 2 CO 2 of reading 0 02 CO C 100 1 CO 2 of reading 0 1 CO2 C For hyperbaric sensors the following apply Sensor Basic accuracy at atmospheric Across full Temperature range pressure and constant temperature pressure range sensitivity 25mbar 0 25mbar CO 2 of reading 2 of reading t0 025mbar CO C 100mbar timbar CO 2 of reading 2 of reading 0 1mbar CO C Document Ref 5S3 802 02 January 2011 Page 14 looking after the air YOU breathe ANALOX Analox 5S MkIII CO2 Sensor OEM User Manual 4 1 2 Oxygen sensors The O sensor also measures partial pressure but again for sensors used at atmospheric pressure only it is often convenient to talk in terms of percentage The O sensor specification is expressed as the sum of three error terms e A fixed quantity e A proportion of the sensor s reading
21. ion The LED will now flash with a longer on time 3 1 Status indications Warm Up Short flashes Period 30s from switch iube than on 22V 0 2V gt 20mA 4 nan Long flashes 0 2V or 4 20mA more on than proportional to off CO2 concentration Normal Operation Service reguired Try calibrating or return to Analox gt 2V 0 2V Double flashes gt 20mA 4 20mA Power cycle the gt 2V 0 2V sensor if fault Fatal error Rapid flashing lt o6mA 4 20mA persists return to Analox Document Ref 5S3 802 02 January 2011 Page 12 looking after the air YOU breathe ANALOX 4 Specifications Analox 5S MkIII CO2 Sensor OEM User Manual Parameter Comments Min Typ Max Units POWER REQUIREMENTS Voltage 8 to 36V input 8 0 36 0 V Voltage 5V input 4 5 55 v Power supply ripple 100 mV Averaged current Peaks at 140mA 70 80 mA SIGNALS RS485 transmitted signal levels 5 0 V RS485 inputs 9 14 V RS485 ESD tolerance 16 kV 4 20mA output max load 400 Q ENVIRONMENTAL Operational temperature range 5 55 C Storage temperature range Limited by oxygen cell 10 70 C Humidity Non condensing 0 99 RH Pressure range for atmospheric Reading is pressure 500 1000 1500 mbar pressure range sensors compensated Pressure range for hyperbaric Reading is pressure 0 8 10 barA pressure range sensors compensated IP rating IP22 GAS SPECIFICATIONS CO 25000ppmSEV 1 to 10 See section 4 2 barA CO
22. location When used to monitor a pumped sample care should be taken to ensure that the sample flow rate is within specification and that the exhaust line is not restricted otherwise gas pressure within the sensor may be increased resulting in false elevated CO2 readings Single port sensor ranges monitoring Single port sensor ranges monitoring a local atmosphere remote atmosphere via a sample line ANALOX 55 Mku CO transducer Dual port sensor ppm ranges Dual port sensor ppm ranges monitoring a monitoring local atmosphere remote atmosphere via a sample line The sensor must be mounted with the gas ports facing downwards so that any accumulation of condensation cannot pool in the gas inlets Document Ref 5S3 802 02 January 2011 Page 6 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 2 3 Oxygen sensor mounting where applicable The 5S3 may be supplied configured to accept an oxygen cell input The oxygen sensor should be mounted via a 15mm hole in a panel or bracket It may be mounted in any orientation EXCEPT with the gas port uppermost This orientation does not damage the sensor but an air bubble may form inside the membrane which effects the cell response and water may also collect in the inlet which would block it 2 4 Electrical connections Electrical connections with the sensor are made via a short screened cable The cable screen is internally co
23. nnected to the diecast box and made off into a green yellow wire CORE COLOUR SIGNAL DETAILS SUPPLY 8 36V DC to Sensor Blue SUPPLY Yellow 4OUTPUT Signal Output from Sensor 0 2V 4 20mA OR Green OUTPUT RS485 communications Use of the screen will depend on the particular installation It is best connected to a clean Earth to form a shield around the sensor Note that it is not recommended for the screen to be connected to the negative supply line It is advised to avoid ground loops Therefore if the case is adequately earth bonded by the users fixings it may not always be desirable to connect the screen to another earth connection If unsure it is suggested that the screen wire be connected to earth in the first place and then if there are problems an earth loop can be broken by disconnecting one of the connections in the earth arrangement Document Ref 5S3 802 02 January 201 1 Page 7 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 2 4 1 Analogue output The 5S3 can be configured to drive the signal output with either the CO or the O value when applicable and the output range may be configured and calibrated using the Analox Sensor Setup Tool The standard output range is either 0 2V or 4 20mA Maximum load resistance for 4 20mA output is 4000 Operation over a reduced range is possible with reduced resolution eg 0 1 1 0V and may be configured through th
24. r Manual and as such not all the information in here may be relevant to your sensor part number 11 Safety warnings 111 Standard alkaline oxygen cell The oxygen sensor contains a potassium hydroxide KOH electrolyte The cells are sealed by a membrane but severe mistreatment such as rapid decompression can cause leakage If there are any signs of chemical leakage from either the sensor assembly or from replacement cells use rubber gloves and wear chemical splash goggles to handle and clean up Thoroughly rinse contaminated surfaces with water Note the First Aid Procedures below to be adopted in the event of contact with leaks of the sensor electrolyte First Aid Procedures CONTACT EFFECT FIRST AID TYPE PROCEDURE Skin KOH electrolyte is Wash the affected parts with a lot of corrosive Skin water and remove contaminated contact could result in clothing If stinging persists get a chemical burn medical attention Ingestion Can be harmful or Drink a lot of fresh water Do not FATAL if swallowed induce vomiting Get medical attention immediately Eye Contact can result in Get medical help immediately and the permanent loss of continue to wash with a lot of water sight for at least 15 minutes 1 1 2 Acid oxygen cell The oxygen sensor contains a weak acid The cells are sealed by a membrane but severe mistreatment such as rapid decompression can cause leakage If there are any signs of chemic
25. ype of non volatile memory used to store configuration data IEEE Institute of Electrical and Electronic Engineers IR Infra Red KOH Potassium Hydroxide LED Light Emitting Diode mbar Unit of pressure equal to one thousandth of a bar MEC Mini Electrochemical Cell a flexible electronics and hardware platform that interfaces with a variety of electro chemical cells PID sensors and bridge output sensors MIR Mini Infra Red sensor miniature version of the third generation Analox CO sensor NDIR Non Dispersive Infra Red O Oxygen OEM Original Equipment Manufacturer PC Personal Computer PID Photo lonization Device PLC Programmable Logic Controller ppm Parts Per Million ppmSEV ppm equivalent at the surface this is a measure of partial pressure it is the ppm concentration at 1barA that would have the same partial pressure as that measured USB Universal Serial Bus Document Ref 5S3 802 02 January 201 1 Page 5 ANALOX looking after the air YOU breathe Analox 5S MkIII CO2 Sensor OEM User Manual 2 Installation 2 1 Physical mounting The sensor is housed in a diecast box fitted with mounting lugs details in section 6 1 The instrument should be screwed to a suitable surface using the two mounting holes 2 2 Gas connections The sensor may either monitor gas in the surrounding atmosphere or a flow adapter can be inserted into the gas port inlet to allow monitoring of pumped sample gas from a remote
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