here - SGX Sensortech
Contents
1. This device is for indoor monitoring purposes only Itis intended to provide an indication of the indoor VOCs concentration changes and CO2 equivalence concentration changes SGX denies any responsibility resulting from the misuse of this product SGX LLC 53 Mountain Boulevard Warren NJ 07059 SENSORTECH 908 222 1477 Operation of USB VZ 87 kit Shipment content The following items are included with the USB VZ 87 kit USB VZ87 board VZ 87 IAQ sensor module USB 2 0 male female extension cable 1 meter Wall adapter Button cell for clock USB VZ 87 Instruction Manual via website PC Manager exe file via website Device handling Avoid touching the area surrounding the sensor aluminium cap of sensor present on VZ 87 sensor module with bare hands Grease or organic solvents perfumes can generate errors To prevent contamination that could degrade performance handle the sensor module VZ 87 only by pinching the sides of the board Some more caution to take e Avoid any use of silicon spray for moulded injected plastic part used for package as it will poison the sensor over time silicon spray is used for easy and fast part release in injection moulding process e Avoid any variable heat source close to the sensor voltage regulator radiator transformer as it may affect sensor readings e Avoid use of rechargeable battery in vicinity of sensor as it may outgas during charging Storage Storag2. setup Nom du fichier f 40829 desk monitoring monitoring qe tetfle a Annuler Close application connection in progress SN SGX USB V 2Z87 0004 rec 13865 When clicking on Save live monitoring a SAVE DATA TO FILE browse window is prompted Simply enter destination file name in a specified path Once this is done data will be stored in the file at defined timing interval To stop click Stop saving this option replaces Save live monitoring once this one is selected 245 SGX LLC pen a f 53 Mountain Boulevard SGX Warren NJ 07059 SENSORTECH 908 222 1477 Operation with AC DC plug USB V87 device can be operated in stand alone no PC connection The system is powered through the USB connector with 5V DC In this configuration the device will start data logging once operated The settings internal recording interval and memory clear are the ones defined at last operation with PC Manager application According to operation location specific AC DC charger can be ordered Europe UK USA see spare parts list for details 2416 SGX LLC 53 Mountain Boulevard Warren NJ 07059 SENSORTECH 908 222 1477 Data file Here below is an example of measurement file with description of each column Date Time status VOC ppb CO2 ppm Ana mv Raw sensor Ohms Device status PWM frequency Hz PWM value ppm RH T C 28 08 2014 16 40 34 ok 1 1015 1924 216040 0 30 5 1015 34 96 31 42 26 08
3. 2014 16 41 35 ok 1 1022 1946 211240 0 30 4 1022 34 49 31 6 28 08 2014 16 42 56 ok 1 1029 1971 214110 0 30 5 1026 34 71 31 56 26 08 2014 16 43 37 ok 1 1029 1970 213140 0 30 4 1029 33 87 32 02 26 08 2014 16 44 56 ok 1 1036 1991 220000 0 30 5 1035 35 28 31 29 26 08 2014 16 45 39 ok 1 1036 1991 220000 0 30 5 1035 35 26 31 36 28 08 2014 16 46 40 ok 1 1036 1992 219000 0 30 5 1035 35 19 31 41 26 08 2014 16 47 41 ok 1 1029 1970 229260 0 30 5 1026 36 03 30 61 26 06 2014 16 46 42 ok 1 1029 1970 222010 0 30 5 1026 35 54 31 2 20 08 2014 16 49 45 ok 1 1022 1946 220000 0 30 5 1020 35 46 31 16 26 08 2014 16 50 44 ok 1 1022 1946 224050 0 30 4 1022 35 71 30 96 20 08 2014 16 51 45 ok 1 1015 1924 223020 0 30 5 1015 35 7 31 04 26 06 2014 16 52 46 ok 1 1015 1923 220000 0 30 5 1013 35 46 31 16 20 08 2014 16 53 47 ok 1 1015 1924 223020 0 30 5 1013 35 30 31 19 28 08 2014 16 54 46 ok 1 1015 1924 224050 0 30 4 1015 35 6 31 04 28 08 2014 16 55 49 ok 1 1008 1900 222010 0 30 4 1006 35 36 31 15 26 08 2014 16 56 50 ok 1 1001 1679 226200 0 30 5 1001 35 39 31 04 28 08 2014 16 57 51 ok 1 1001 1679 226200 0 30 5 1001 35 46 31 05 26 08 2014 16 56 52 ok 1 994 1857 227150 0 30 5 994 35 64 30 84 28 08 2014 16 59 53 ok 1 980 1816 230320 0 30 4 960 36 16 30 46 26 08 2014 17 00 54 ok 1 973 1793 22 150 0 30 4 972 36 25 30 53 28 08 2014 17 01 55 ok 1 959 1745 232460 0 30 5 956 37 15 29 93 26 08 2014 17 02 56 ok 10 946 1702 230320 0 30 4 944 36 9 30 02 26 08 2014 17 03 57 ok 1 939 1670
4. 233550 0 30 5 937 37 30 02 26 08 2014 17 04 56 ok 5 925 1641 237950 0 30 5 924 37 5 29 73 26 08 2014 17 05 59 ok 1 904 1569 245940 0 30 4 903 37 63 29 4 26 08 2014 17 07 00 ok 1 676 1487 244760 0 30 5 675 38 32 29 1 Date and Time Recording interval is set in PC Manager the recorded data is instantaneous value requested by the I2C or measured on VZ 87 board or USB VZ87 board Analog out PWM RH T Status USB VZ87 board status board reset at start vec overload if 5V is out of range module in short circuit or current out of range protection mode shortage of 5V comm error number 1 gt VZ87 2 gt RTC 3 gt EEPROM 4 gt SHT21 ok everything is OK VOC ppb Calculated VOC concentration in ppb based on measurement done by sensor CO2 ppm Calculated CO2 equ concentration in ppm based on measurement done by sensor Ana mV Analog output value corresponding to the combined output of CO2equ VOC see VZ 87 data sheet for details 247 x SGX LLC 53 Mountain Boulevard scx Warren NJ 07059 SENSORTECH 908 222 1477 J ty Raw sensor Ohms Sensor raw resistance value Device Status VZ 87 board status byte weed Bit set with Bit set Bit set with sensor Bit set with when VZ 87 Ene sensor CRC is in test heating out element out mode of range of range mismatch PWM frequency Hz Pulse width modulation frequency set at 30 Hz
5. QD O 5 D oO 5 z 7 2 pE Q D Ey n SHT21 sensor is Z87 I2C is OK Status reading rec 289 353 Date and time EEMETERAAEZAMNAONANAND Real Time Clock Internal recording Recording interval 5secs Memory free 662 1016 SN SGX USB YZ87 0004 14 Status Firmware version iLa Dc DC 5 V is running H 1 C bus 1 is OK Real Time Clock is running B I C bus 2 is OK rec 13865 SGX LLC 53 Mountain Boulevard sox yi Warren NJ 07059 SENSORTECH 908 222 1477 FS PC MANAGER VZ87 INTERFACE vor y Coy sensor Data file format RH T sensor Field separator Tabulation _ Decimal separator VZ87 Saian a File recording Recording interval USB Interface YOC CO2 units displayed amp recording Software setup Units selected ppb amp ppm _ Save live monitoring About Close application iz O j 1a O Q Jaj uw uw SN SGX USB VZ87 0004 rec 13865 Software setup window allows defining data file format PC recording file interval and units PC MANAGER VZ87 INTERFACE aag VOC CO2 sensor Data file format RH T sensor Field separator Tabulation fl Decimal separator Dot SAVE DATA TO FILE VZ87 module Enregistrer dans O data e ex EB 5 test USB Interface E test4 E test5 Software E test5_mem
6. SGX LLC 53 Mountain Boulevard Warren NJ 07059 908 222 1477 Instruction Manual USB Demo Kit for VZ 87 Version 1 2 12 2014 Please read and understand this instruction manual before handling and operating this demo Kit iJ G THIS DEVICE IS AN INDICATOR IT IS NOT INTENDED TO BE USED AS A SECURITY DEVICE SGX LLC e 2 53 Mountain Boulevard SCox lt Warren NJ 07059 SENSORTECH 908 222 1477 General information sesessesessesessecescecessscessscesoscecescecesoesescecssoscesoecesoscessecesesoeseeoecsscesseoese 3 COZ VOCS CONSISTENCY serriirron irern n AE E OE 4 USB VZ87 Demo Kit Specifications cesceccecscsceccccscsccccccscnceccecscnceccccecnceseccecsceseccecscesess 6 I aaa racer ates wats tastes tee tensa A eaten ee ee a ce ote dee eee tedster A 7 DCO ET sree iste eareteceseca errs EA ea atateaanc arson cause aair naip et E EE AE E EE OET EA 7 Operation of USB VZ 87 kit s esesessesessecsessecessscessscesescesssoecesoscesoecesoecessecesoscoessececsscessesese 8 SOT CO N EEE NA N N E E ER sus ges EAA E E ERAO A 8 DENCE NON G e E A E A E E E E 8 OT e EA E E E deat E E E E E 8 Starup OSI OI ieceri Tenn aE E E TEETE E EE TE S OEE S EEE EOE 8 Operation With AC DC plug cccrnciccnccinrincsorostendanansnessiuasboeenavienasunesdendanadsnesnueteaceaaveadendasseadbancsanssneeveanadadeuneseacne 16 Daa TNS a E EEE ETE Ei 17 Trouble shoo CAE aa ia ote ees a a n a a aa 19 Spare DIES NSE vies cacetece tee cue c
7. ata points Storage intervals programmable for internal and PC data logging Autonomous Pluggable on 5V AC DC for stand alone data logging with RTC Compact package Small size Lx W x H 73 5 x 17 5 x 16 mm including USB connector User friendly Easy and speedy setup Simple data analysis Applications Evaluation of sensor performance for indoor applications Detection of VOCs pollution peaks CO2 equivalence monitoring Development of solutions for indoor air quality SGX LLC f 53 Mountain Boulevard SGX Warren NJ 07059 SENSORTECH 908 222 1477 Ts CO2 VOCs consistency VZ 87 product has been developed as a demo unit in order to evaluate performances in desk area Algorithm parameters have been defined to follow CO2 variations in known conditions with a correlation ratio between VOCs and CO2 Correlation between V 7 87 and NDIR CO Siemens sensor Example of behavior observed in desk area over 5 days at SGX Sensortech Corcelles SWITZERLAND HDIR CO Siemens 57 analog OUT CO2 concentration PPM Analog OUT Volts OD hea ae to a Ne a 1200 00 00 12 00 12 00 00 00 12 00 12 00 Time over days As you can see in chart above VZ 87 monitoring 5 days example VZ 87 output is slightly different from true CO2 concentration measured with another costly technology NDIR This is obviously linked with the fact that MiCS 5524 MOX sensor is not measuring directly the CO2 gas concentra
8. e Dimensions Weight Operating temperature Operating relative humidity Detector Battery Electrical operation Visual indicator Direct readout Data storage capacity O to 2000 ppm equ O to 1000 ppb isobutylene equ or other according to VZ 87 firmware version 73 5 x 17 5 x 16 mm including USB connector lt 10 gr 5 to 50 C 5 to 95 non condensing Semi conducting gas sensor on smart board VZ 87 T amp RH sensor on USB demo kit on board battery for RTC 3 0V 48mAh typ CR1225 5V 100 mA 1 status LED on the USB board and 1 status LED on VZ 87 CO2 equ and tVOCs concentrations chart of last 10 minutes of data logging On demand temperature relative humidity and memory filing level Embedded real time clock and eeprom with 1016 data points with programmable interval 5 sec up to 12hours for stand alone data logging SGX LLC 53 Mountain Boulevard SGX Warren NJ 07059 SENSORTECH 908 222 1477 A Fit Warranty SGX warrants this product to be free from defects in material and workmanship for a period of 1 year from date of shipment This warranty does not apply to defects resulting from product modification or misuse of any product or part This warranty also does not apply to fuses software battery damage resulting from battery leakage The warranty is not applicable to problems arising from normal wear and tear or from failure to follow operating instructions Disclaimer
9. e temperature should be comprised between 20 C and 50 C and relative humidity between 10 and 80 The device should not be stored in silicon contaminated atmosphere typically HMDS gas Storage in such conditions may produce sensors sensitivity losses Start up operation Insert the VZ 87 in the connector of the USB VZ87 board as shown here below SGX LLC 53 Mountain Boulevard SGX Cu Warren NJ 07059 SENSORTECH 908 222 1477 ipy PC interface The PC Manager application software is an executable file Save PC Manager exe file to a specific path and then double click the icon fai r Uv N gt zZ gt c m 5 lt N w zZ imal A 1 gt N m J j yoryco2 sensor RH T sensor VZ87 module USB Interface Please connect an USB V2Z87 device Software setup on a free USB port of the PC Save live monitoring About Close application a 2 io 5 5 D oO ot 5 SN not connected rec 13865 After starting the software it is necessary to detect USB VZ87 For this connect the board with VZ 87 in place to the PC with USB cable or directly in USB available slot as shown here below SGX LLC 53 Mountain Boulevard SGX Warren NJ 07059 SENSORTECH 908 222 1477 Pht 6 f When USB VZ87 is plugged monitoring starts immediately and is displayed in the chart VZ 87 module LED is blinking during one minute to show that it is in
10. escaceneatesesscsaneteseatuasusceeeuesnectacessaseuessecsbenvesesncaucucotimeseeonetaneses 19 SGX LLC 53 Mountain Boulevard SGX Warren NJ 07059 SENSORTECH 908 222 1477 A Fit General information The USB demo kit for VZ 87 is a device designed to provide easy and fast demonstration of the behaviour of SGX Sensortech indoor air quality monitoring solution The kit allows the readout of a VZ 87 module in order to display measurements of the calculated CO2 equivalent and VOC values based on a metal oxide semiconductor gas sensor Semi conducting gas sensor exhibits an decrease of resistance value in presence of VOCs The device can perform continuous exposure monitoring and data logging of raw sensor signal CO2 equivalence measure based on VOC correlated with CO2 VOC temperature and humidity in environmental conditions for solution developers or people interested in air quality monitoring Features include Environmental monitoring Display gas concentration and a chart of actual measurements Display temperature and relative humidity on demand I2C communication status readings settings Real time clock for stand alone operation Data logging Store date and time status calculated tVOC concentration ppb calculated CO2 equivalence concentration ppm raw sensor value resistance value in Ohms relative humidity and temperature C e Programmable sampling rate Stand alone data storage capacity of 1016 d
11. in VZ 87 Not changing PWM value PWM output value corresponding to the combined output of CO2equ VOC see VZ 87 data sheet for details RH Relative humidity measurement Temp C Temperature measurement This measurement exhibits temperature offset generated by the selfheating around the sensor area 18 SGX LLC 53 Mountain Boulevard scx Warren NJ 07059 SENSORTECH 908 222 1477 mee art a Trouble shooting The most likely problems and causes are listed below Symptom Instrument not detected by Bad USB initialisation Disconnect the USB VZ87 from USB USB port close and relaunch PC_Manager connect the instrument on the USB Download data blocked USB link lost during data Close PC_Manager and relaunch the transfer software Power will not turn off ON OFF button not held long Press button for approx 5 sec until enough instrument turn off Bad RTC reading On board battery end of life Change on board RTC battery Instrument indicates 400 ppm Warm up phase of 15 Wait for 15 minutes after device CO2 equ minutes power up to have warm up ended Spare parts list 2076A03 AC DC 5V charger US 2076A04 AC DC 5V charger UK 2076A05 USB cable 1m 19
12. ower on A YZ87 module Frame to send to YZ87 device USB Interface Command Byte 0 Byte 1 Byte 2 Byte 3 o o oo o 00 C sendmessas Software setup SENE Data frame received from VZ87 device monitoring VOC CUZ Raw H Raw data Raw L Status CRE 00 oo oo 00 oo oo oo Close application connection in progress SN SGX USB V 287 0004 rec 13865 Firmware version can be obtained with command Ox0D as shown here below with the data frame received form VZ 87 device ES PC MANAGER VZ87 INTERFACE VOC CE2 sensor RH T sensor VZ87 module USB Interface Software setup Save live monitoring About Close application connection in progress Status CRC error in last I12C message Sensitive element out of range Heating element out of range Test mode after power on Frame to send to VZ87 device Command Byte 0 Byte 1 Byte 2 00 L OD 00 00 Send message Data frame received from VZ87 device Year Month Day Version OE 09 02 41 SN SGX USB VZ87 0007 adde SGX LLC 53 Mountain Boulevard SGX Warren NJ 07059 SENSORTECH 908 222 1477 fy F Byte1 OE Year 14 Byte2 09 Month 09 September Byte3 02 Day 02 Byte4 41 Index letter ASCII value form a to Z A is 65 Byte5 not used Byte6 not used Byte 7 CRC Comments Other commands will be implemented in next versions of firmware in order to ex
13. tend the operating mode evaluation cycled mode period and duty cycle definition USB interface window displays the status of the communication between the components in place E gt PC MANAGER VZB7 INTERFACE ak WADD y OOZ sensor Status RH T sensor Firmware version 1 00 62 V787 DC DC 5 is running E I7C bus 1 is OK module Real Time Clock is running m I C bus 2 is OK E USB Interface SHT21 sensor is OK je Serial EEPROM is OK H Z87 I2C is OK Lal Log memory is full iG Software setup Date and time Save live monitoring Real Time Clock 29 08 2014 11 51 Set date and time from PC Disable Real Time Clock Internal recording Recording interval 1 min i Download log data About Memory free 1015 1016 Clear memor Close application connection in progress SN SGX USB V 287 0004 rec 13865 This window allows check set internal clock of the device It is useful to synchronise with a PC when several devices have to be used for a mapping for example Click the Set date and time from PC button internal RTC clock is then set to the computer clock Remark Before every acquisition period it is advisable to synchronise the instrument with the PC It is also useful to erase the instrument memory for availability of the full memory space click on Clear memory 12 SGX LLC 53 Mountain Boulevard SGX Warren NJ 07059 SENSORTECH 908 222 1477 a fi ye Memory capacity is of 1016 data points
14. the first minute of operation VZ 87 CO2 equ output is maintained at 400 ppm during the warm up period of 15 minutes Refreshing data rate is 1 Hz FS PC MANAGER VZ87 INTERFACE EJ HOG CO2 sensor Acquisition data RH T sensor YOC value i ppb E PWM output frequency 30 4 Hz CO2 value 987 ppm B PWM ouput value 987 ppm B VAS RAW sensor 311 240 Ohms USB Interface 2000 ppb ppm setup 1600 ppb ppm Save live monitoring 1200 ppb ppm 800 ppb ppm Close application 0 ppb ppm 00 00 10 00 connection in progress SN SGX USB V 2Z87 0004 rec 13865 By clicking on RH T one can see climatic values in another chart ES PC MANAGER VZB7 INTERFACE ae Yo CO2 sensor Acquisition data RH T sensor Relative humidity 39 41 Temperature 20 67 A E VZ8 module 100 C USB Interface Software 80 C setup Save live aie monitoring 60 C 40 C 20 C Close ahs application ere 00 00 10 00 connection in progress SN SGX USB 287 0004 rec 13865 ir Fit SOX SENSORTECH SGX LLC 53 Mountain Boulevard Warren NJ 07059 908 222 1477 When clicking on VZ87 module one can enter in the VZ87 interface window where it is possible to send and receive I2C data FS PC MANAGER VZ87 INTERFACE Z voc co2 E 37 DEV sensor Status RH T sensor CRC error in last I12C message B Sensitive element out of range o Heating element out of range E Test mode after p
15. tion but the VOCs These VOCs may come from several sources like e Cleaning and maintenance supplies e Carpets fabrics finishes and furniture e Office equipment copiers printers e Microbial action e Renovations e Pesticides e Human occupancy exhalation and perfume Only the last one is clearly correlated with CO2 exhalation of humans This explains the differences observed between CO2 ppm monitoring with NDIR detector and IAQ devices Spending upwards of 95 of one s time inside a sealed high efficiency building has led to a rise in sick building syndrome SBS complaints SGX LLC E 53 Mountain Boulevard SGX Warren NJ 07059 SENSORTECH 908 222 1477 4 Fit According to the American Lung Association the top five indoor air pollutants include in alphabetical order e Carbon monoxide gt seen by VZ 87 and not by NDIR CO2 module e Formaldehyde gt seen by VZ 87 and not by NDIR CO2 module e Microbial contaminants e Second hand tobacco smoke gt partially seen by VZ 87 and not by NDIR CO2 module e Volatile organic compounds VOCs gt seen by VZ 87 and not by NDIR CO2 module VOCs detector complements CO2 monitors by providing air quality level correlated with CO2 generated by human presence VOCs from other sources J Fit scx SENSORTECH SGX LLC 53 Mountain Boulevard Warren NJ 07059 908 222 1477 USB VZ87 Demo Kit specifications CO2 equ range tVOC rang
16. with recoding intervals going from 5 seconds to 12 hours When this capacity is exceeded next data will not be stored SPC MANAGER VZ87 INTERFACE ak VOC CO2 sensor Status RA 7 sensor Firmware version 1 0 0 b2 VZ87 DC DC 5 V is running E I C bus 1 is OK Ba module Real Time Clock is running Be 1 C bus 2 is OK iE USB Interface SHT21 sensor is OK E Serial EEPROM is OK E Z87 I C is OK al Log memory is full E Software setup Date and time Save live monitoring Real Time Clock 29 08 2014 12 25 Set date and time from PC Disable Real Time Clock Internal recording Recording interval i mini o Download log data Memory free eed Close i min spplcaticn 15 mins connection in progress SN 87 0004 rec 13865 1 hour 3 hours 12 hours Internal interval recording period is selected by clicking on desired value 34 SGX LLC 53 Mountain Boulevard Warren NJ 07059 908 222 1477 Once internal acquisition period is over Log memory is full will indicate this status by changing colour orange Download of logged data is done by clicking on the button and download data status will appear The data transfer starts automatically after having defined the destination file and whole memory is read and decompressed in txt file FS PC MANAGER VZ87 INTERFACE VOC f CO2 sensor RH T sensor VZ87 module USB Interface Software setup Save live monitoring About Close application
Download Pdf Manuals
Related Search