infrared gas analyzer this gas analyzer (zpa) is capable of measuring the con - centration of no,so 2 ,co 2 ,co,ch 4 and o 2 components in sample gas. no, so 2 , co 2 , co and ch 4 are measured by non-dispersion infrared method (ndir), while o 2 is mea - sured by fuel cell or paramagnetic and zirconia method. optimum use as an analyzer unit for measurement of combustion exhaust gas from refuse incinerator, boiler exhaust or gas from various industrial furnaces. features 1. high sensitivity equipped with the newest upgraded mass fow sensor. 2. easy maintenance maintenance is easy due to simple measurement unit of single-beam system adapted. 3. small and light the size is small 133x483x382mm (hxwxd). (this is for 19inch rack mounting type) and light (9kg). unit is capable max. 5 component measurement in one analyzer. 4. extensive functions various optional functions are available such as auto calibration control, atmospheric pressure correction, high and low concentration alarm, remote range switch, and range identifcation signal,etc. specifications standard specifcations principle of measurement: no, so 2 , co 2 , co, ch 4 ; non-dispersion infrared-ray absorption method single light source and single beams (single beam system) o 2 ; fuel cell o 2 sensor (build-in) or paramag - netic o 2 sensor (build-in) or zirconia o 2 sensor (externally installed type: zfk7) measurable gas components and measuring range: minimum range maximum range no so 2 co 2 co o 2 built-in paramagnetic 0 - 200ppm 0 - 5000ppm 0 - 10vol% 0 - 100vol% 0 - 100vol% 0 - 25vol% 0 - 100ppm 0 - 200ppm 0 - 10vol% 0 - 2 00ppm ch 4 0 - 100vol% 0 - 500ppm 100 - 95vol% none 0 - 100vol% 0 - 5vol% o 2 built in fuel cell o 2 external zirconia 0 - 25vol% 0 - 5vol% ? max. 5 components measurement includ - ing o 2 . for reverse range o 2 measurement, in - frared gas measurement is not available (single range o 2 only). ? measuring range ratio max. 1:10 (except o 2 ) ? measuring ranges are changeable be - tween the specifed minimum and maxi - mum range settable one range or two ranges * in measurement range low range is called frst range, high range is called second range. ? for possible combinations of components and ranges, refer to table1. measured value indication: digital indication in 4 digits (lcd panel with led back light) ? instantaneous value of each component ? instantaneous value after o 2 correction (only in no, so 2 , co measurement with o 2 ) ? average value after o 2 correction (only in no, so 2 , co measurement with o 2 ) ? o 2 average value data sheet zpa EDS3-143 nov. 2, 2011 date
2 zpa analog output signals: 4 to 20ma dc or 0 to 1v dc, isolated internally from circuit and ground. output lines are non-isolated each other.; 12 outputs max. allowable load550 for 4 to 20ma dc allowable load100k for 0 to 1v dc * refer to table2 for the channel no. of displayed values and analog output signals. analog input signal: for signal input from externally installed o 2 sensor. signal requirement; (1) signal from fujis zirconia o 2 sensor (type: zfk7) (2) 0 to 1v dc from an o 2 sensor input section is not isolated. this feature is effective when an o 2 sensor is not built in. * externally installed o 2 sensor should be purchased separately. digital output: (option) 1c contact (24v dc/1a, resistive load) max.15 outputs instrument error, calibration error, range identifcation, auto calibration status, solenoid valve drive for auto calibration, high/low limit alarm con - tact output. * all relay contacts are isolated mutually and from the internal circuit. digital input: (option) voltage contact (supply 12-24vdc (15ma max.)) max. 9 inputs remote range change over, auto cali - bration remote start, remote hold, average value reset, isolated from the internal circuit with photocoupler. power supply: voltage rating ; 100v to 240v ac allowable range ; 85v to 264v ac frequency ; 50hz/60hz power consumption ; 100va max. operation conditions: ambient temperature ; - 5 ? c to 45 ? c (40 ? c max. when 2 optical sys - tem at 200v ac power source) ambient humidity ; 90% rh max., non-condensing storage conditions: ambient temperature ; - 20 ? c to 60 ? c ambient humidity ; 100% rh max., non-condensing dimensions (h w d): 133 x 483 x 382mm mass: approx. 9 kg finish color: front panel; cool gray (panton 1c-f) enclosure: steel casing, for indoor use material of gas-contacting parts: gas inlet/outlet; sus304 sample cell; sus304,chloroprene rubber infrared-ray transmitting window; caf2 internal piping;toaron,tefon, polypropyl - ene paramagnetic o 2 sensor cell : sus316 fuel cell o 2 sensor cell : abs resin gas inlet/outlet: rc1/4 or npt1/4 internal thread purge gas fow rate: 1l/min ( when required) life time of fuel cell o 2 sensor: 2 years ycpbopfonisbtc-ob, output signal holding: output signals are held unchanged during manual and auto calibrations by activation of holding (turning on its setting). the values held are those just before start calibration mode or setting value. it is selectable. indication of instantaneous values will not be held. switch ranges: the switch ranges function is available in manual, auto, and remote modes. only preset switch method is effective. manual: allows range to switch by key operation. auto: automatically switched from frst range to second range when the measured value exceeds to 90%fs of frst range. automatically switched from second range to frst range when the measured value drops to 80% or less frst range. remote: voltage contact input (for measurable components) allows range to switch via an external signal when remote range switch input is received. when the contact input terminals for each component are input voltage, the frst range is selected, and it is switched to the second range when the terminals are open. * these range value are settable between original frst range and second range. )mc-obp2nisbtc-ob, remote output holding: output signal is held at the last value or preset value by voltage input the remote output holding input terminals. holding is maintained while the voltage input the terminals. indication of instan - taneous values are not held. range identifcation signal: the present measuring range is identifed by a contact position. the contact output terminals for each component close when the frst range is selected, and when the second range is selected, the terminals are open. auto calibration: auto calibration is carried out periodically at the preset cycle. when a standard gas cylinder for calibra - tion and a solenoid valve for opening / closing the gas fow line are prepared externally by the customer, calibration will be carried out with the solenoid valve drive contacts for zero calibration and each span calibration turned on/off sequentially at the set auto calibration timing. (option)
3 auto calibration cycle setting: auto calibration cycle is set. setting is variable within 1 to 99 hours (in increments of 1 hour) or 1 to 40 days (in increments of 1 day). gas fow time setting: the time for fowing each calibration gas in auto calibration is set. settable within 60 to 900 seconds (in increments of 1 second) auto calibration remote start: auto calibration starts by opening the auto calibration remote start input terminal after short circuiting for 1.5 sec or longer. auto calibration starts when contacts open. auto zero calibration: auto zero calibration is carried out periodi - cally at the preset cycle. this cycle is independent on auto cali - bration cycle. when zero calibration gas and solenoid valve for opening/closing the calibration gas fow line are prepared externally by the customer, zero calibration will be carried out with the solenoid valve drive contact for zero calibration turned on/off at the set auto zero calibration timing. auto zero calibration cycle setting: auto zero calibration cycle is set. setting is variable within 1 to 99 hours (in increments of 1 hour) or 1 to 40 days (in increments of 1 day) gas fow time setting: the timing for fowing zero gas in auto zero calibration is set. settable within 60 to 900 seconds (in increments of 1 second) high/low limit alarm: alarm contact output turns on when measurement value reaches the preset high or low limit alarm value. contacts close when the instantaneous value of each channel exceeds the high alarm limit value or falls below the low alarm limit value. instrument error contact output: contacts turn on at occurrence of analyzer error no. 1, 2, 3 or 10. calibration error contact output: contacts turn on at occurrence of manual or auto calibration error (any of errors no. 4 to 9). auto calibration status contact outputs: contacts turn on during auto calibration. o 2 correction: correction of measured no, so 2 and co gas concentrations into values at refer - ence o 2 concentration correction formula: c = x cs c : sample gas concentration after o 2 correction c s : measured concentration of sample gas o s : measured o 2 concentration (limit setting: 1 to 20% o 2 ) o n : reference o 2 concentration (value changeable by setting.0 to 19% o 2 ) average value after o 2 correction and o 2 average value calculation: the result of o 2 correction or instan - taneous o 2 value can be output as an average value over the preset period of time. used for averaging is the moving average method in which sampling is carried out at intervals of 30 seconds. (output is updated every 30 seconds. it is the average value in the determined period of time just before the latest up - dating.) averaging time is settable within 1 to 59 minutes (in increments of 1 minute) or 1 to 4 hours (in increments of 1 hour). average value resetting: the above-mentioned output of average value is started from the initial state by opening the average value resetting input terminals after short circuiting for 1.5 sec or longer. output is reset by input voltage and restarted by opening communication function: rs-485 (9pins d-sub connector) half-duplex bit serial start-stop synchronization modbustm protocol contents : read/ write parameters read measurement concen - tration and instrument status remark : when connecting via rs - 232c interface, an rs-232c ? rs-485 converter should be used. atmospheric pressure correction: measure atmospheric pressure and cal - culate compensation (for use, be sure to relieve the exhaust gas from analyzer to the atmosphere) after atmospheric pressure correction; zero point : no infuenced span point: the change is 0.5% mea - sured value or less relating to the change of the atmo - spheric pressure 1%. correction range: 700hpa-1050hpa 21-on 21-os
4 zpa performance repeatability: 0.5% of full scale linearity: 1% of full scale prior to atmospheric pressure correction (option) zero drift: 2% of full scale/week in the case of auto zero calibration use for 500ppm or less range. span drift: 2% of full scale/week response time (for 90% fs response) : 1 to 15 sec electrical response. within 10-30 seconds including replacement time of sampling gas. gas replacement time depends on the number of measuring components,and measuring range. interference from other gases: interference component co 2 analyzer so 2 analyzer ch 4 analyzer co analyzer co 1000ppm co 2 15% h 2 o saturation at 20c h 2 o saturation at 2c ch 4 1000ppm CC CC CC CC CC CC 1.0%fs 1.0%fs 1.0%fs 2.0%fs 2.0%fs 1.0%fs 1.0%fs *1) 0-200ppm range 2.0%fs *2) 0-500ppm range or less 2.0%fs 1.0%fs 1.0%fs 1.0%fs 1.0%fs no analyzer CC CC 2.0%fs 1.0%fs 1.0%fs 20ppm 1.0%fs 1.0%fs *2) *1) *2) ec directive compliance the product conforms to the requirements of the low volt - age directive 2006/95/ec and emc directive 89/336/eec (as amended by directive 92/31/eec), both as amended by directive 93/68/eec. it conforms to following standards for product safety and electromagnetic compatibility ; en61010-1 : 2010 safety requirements for electrical equip - ment for measurement, control and laboratory use. installation category ii pollution degree 2 en61326-1 : 2006 electrical equipment for measurement, control and laboratory use emc requirements. standard requirements for sample gas flow rate: 0.5l / min 0.2l / min temperature: 0 to 50?c pressure: 10 kpa or less (gas outlet side should be open to the atmospheric air.) dust: 100 g/nm 3 or less in particle size of 0.3 m or less mist: unallowable moisture: below a level where saturation occurs at room temperature (condensation unallow - able). below the level where saturation occurs at 2?c for co measurement in 0 to 200 ppm range, no measurement, and so 2 measurement. corrosive component: 1 ppm or less standard gas for calibration: 1) infrared-ray measurable component, standard o 2 zero gas ; dry n 2 span gas ; each sample gas having con - centration 90 to 100% of its measuring range (recom - mended). in case a zirconia o 2 analyzer is installed externally and calibration is carried out on the same calibration gas line: zero gas ; dry air or atmospheric air (do not use with co 2 measure - ment) span gas ; for other than o 2 measure - ment, each sample gas hav - ing concentration 90 to 100% of its measuring range for o 2 measurement, o 2 gas of 1 to 2 vol%/remains n 2 gas 2) reverse range o 2 measurement zero gas ; 100% o 2 span gas ; for o 2 measurement, o 2 gas of 95.0%~95.5%/remains n 2 gas *for reverse range o 2 measurement, infrared measurable component is not measurable. installation requirements ? indoor use (select a place where the equipment does not receive direct sunlight, draft/rain or radiation from hot substances. if such a place cannot be found, a roof or cover should be prepared for protection.) ? avoid a place where unit receives heavy vibration ? select a place where atmospheric air is clean
5 principle diagram of ndir type measurement (for no, so 2 , co 2 , co, ch 4 ) principle diagram of fuel cell type measurment (for o 2 ) output indication signal processing and calculation block preamplifier mass flow sensor detector rear expansion chamber front expansion chamber infrared-ray light source motor measuring cell chopper gas outlet gas inlet thermistor electrolyte diaphragm positive electrode negative electrode resistor output indication signal processing and calculation block preamplifier gas outlet gas inlet measuring cell mirror magnetic field photo diode permanent magnet permanent magnet light emitting diode dumb-bell principle diagram of paramagnetic type measurment (for o 2 )
6 zpa examples of sampling system confguration including gas analyzer to measure low moisture content (saturated at room temperature or lower) sample gas (co, co 2 , ch 4 ) to measure high moisture content sample gas, no, so 2 , or co (0 to 200 ppm range) list of sampling devices (example) pump two-way solenoid valve solenoid valve mist filter drain pot demister reference gas for zero calibration reference gas for span calibration ball valve ball valve drain flow meter exhaust (atmospheric pressure) (in the case of zirconia type) gas analyzer (zpa) o 2 analyzer membrane filter 1 3 7 5 11 6 6 8 7 7 7 9 10 sample gas inlet 3 electronic cooler safety drain trap drain pot atmospheric (air) o 2 analyzer pump pump two-way solenoid valve solenoid valve mist filter drain flow meter exhaust (atmospheric pressure) (in the case of zirconia type) gas analyzer (zpa) membrane filter no x /no converter (for no x measurement) ball valve * 1) be sure to use a dehumidifier such as electronic cooler for no, so 2 , and co analyzers of 0 to 200 ppm range (=2oc saturation or lower). solenoid valve reference gas for zero calibration reference gas for span calibration 8 7 7 7 1 3 3 2 4 5 6 9 12 10 7 * 1) 13 sample gas inlet zbm y04-0 (codes in to be selected depending on application) no. device name fujis type mist filter safety drain trap pump electoric cooler drain pot ball valve two-way solenoid valve standard gas for calibration flow meter membrane filter zbbk1v03-0 zbh51603 zbg80 zbc91004 zbh13003 (length 255mm) zbfb1 zbd42203 zbbm2v03-0 demister zbh35003 no 2 /no converter zdl02001 three-way solenoid valve 1 2 3 4 5 6 7 8 9 10 11 12 13 note) the above is a typical configuration example. as configuration may differ depending on measuring objects, please consult us.
7 code symbols standard multi components b y p a d b e f g j k l n t v z y 1 2 3 4 1 y a b c l m v p r s z 1 2 a b c d 4 5 6 7 1 2 3 z p a b 1 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 description note note1 note2 note3 note4 note4 note4 note4 note4 note4 note4 note4 note5 note6 note6 note6 note6 note7 note8 digit 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 horizontal type (terminal block for power supply) horizontal type (power inlet, with lock) 19inch rack mounting type eia conformity 1st component 2nd component 3rd component 4th component none - - - no - - - so 2 - - - co 2 - - - co - - - ch 4 - - - no so 2 - - no co - - co 2 co - - ch 4 co - - co 2 ch 4 - - no so 2 co - co 2 co ch 4 - no so 2 co 2 co others none external o 2 analyzer external zirconia o 2 sensor (zfk7) built-in fuel cell o 2 sensor built-in paramagnetic o 2 sensor 1st component, 1st range 1st component, 2nd range 2nd component, 1st range 2nd component, 2nd range 3rd component, 1st range 3rd component, 2nd range 4th component, 1st range 4th component, 2nd range none 0-5/10% 0-5/25% 0-10/25% 0-5% 0-10% 0-25% 0-50% 0-100% 100-95% others rc1/4 npt1/4 |