English Edition No9 - PDF document

1 7272 English Edition No.9 Establishmen
7272 English Edition No.9 Establishment of a “Common Analyzer”Concept in the MEXA-1170 Series[The Development Team]Back row from the left:Akihiro Nishimoto, Koji Watanabe, Toshihiko Matano, Atsushi Tamura, Takekazu SugiharaFront row from the left:Hiroshi Nakamura, Masaru Miyai, Shigeru Nakatani, Yoshihisa OndaAt present, HORIBA’s engine exhaust gas analyzers comprise a wide variety of detectors, components,electrical process engineering, communication technology, and software engineering to meet variousmarket demands. The concept of a “Common Analyzer” has been established to standardize these diversetechnologies and engineering. This is so that we can: share development and service technology developedby HORIBA, reduce manpower for development and maintenance, reduce products & service parts costs,and control the mass production inventory. MEXA-1170 series to develop the MEXA-1170HNDIR, MEXA-1170HCLD, MEXA-1170NX, andMEXA-1170SX. The concept has enabled utilization of analysis technology, electrical processengineering, and software technology used in the MEXA-7000 (which is one of the main products ofMEXA-1170 series analyzers to the MEXA-7000 became possible. In this paper, we will describethe “Common Analyzer” concept. 73 Technical Reports Engineering Standardization ofCommunication TechnologyTo apply the detection, electrical processing, and softwareof the MEXA-7000 series, which is currently HORIBA’smain product containing our traditional analysis technologyexpertise, to the “Common Analyzer” following threeinterfaces has been exa

2 mined. The electrical signalHORIBA’s own
mined. The electrical signalHORIBA’s own bus (AZ bus). This is an interface betweenfinal output. These conditions caused difficulties when using (whose analyzer PCB has parallel, andGPIB interfaces) for the mid-range analysis system.The “Common Analyzer” concept enabled us to utilize theboard. This board has signal processing, temperature control,and analog outputs as standard specification. GPIB or aparallel interface is also available as option. At only half(AZ-Bus) to general interface, and can install a softwareapplication of the “Common Analyzer” concept to numerous shows the current lineup ofcommunication technology, software engineering. For has more than 20 types of Non-Dispersive Infrared(NDIR) analyzers available, more than 20 types of Chemi-of Flame Ionization (FID) analyzers. All of them have beentechnology and engineering used. With this concept,standardization of the developed technology and servicingtechnology has been realized. In addition, reduction of theTo commence development of the new concept analyzer,we selected the MEXA-1170, a standalone analyzer targetedat users of mid-range systems in both price andWe established the concept to share the major parts andthe MEXA-1170HNDIR, the analyzer component of the“Common Analyzer” concept with the MEXA-1170HCLD 170HCLD . The following describes S-M -M EX X MEX X A-1170 -1170 EX X A-1x -1x 60 0 EX X SA-1500 A-1500 EX X A-7000 -7000 EX X A-1600 -1600 MEX X A-1500 -1500 MEX X A-1300 -1300 MEX X A-9000 -9000 OBS-100 BS-100 ommon Analyze e S-MEXAMEXA-1170MEXA-1x60EXSA-1500MEXA-7

3 000MEXA-1600DMEXA-1500DMEXA-1300MMEXA-90
000MEXA-1600DMEXA-1500DMEXA-1300MMEXA-9000OBS-1000Common AnalyzerTarget Figure 1Lineup of Major Analysis Systems for Engine Establishment of a “Common Analyzer” Concept in the MEXA-1170 Series 74 English Edition No.9 shows the electrical block diagram of MEXA-1170 series. Software StandardizationFirstly, MEXA-IFC-02 board was incorporated into theMEXA-1170HNDIR, which is the analyzer unit of thewas produced. For MEXA-1170HNDIR, we designed andsoftware functions: A mid-range analysis system or ahardware switch, the MEXA-1170 is recognized as one ofMEXA-7000MCU. This allows operation without anyhardware, we have programmed the system so that each piecefor the software of a single component analyzer, and the Remote controllerRS232Recorder outputRS232C (HOST)These boards are common to MEXA-7000 series.Interface control board (MEXA-IFC-02)Analyzer analog signal processing boardAnalyzer analog signal processing boardScreen display CPU boardCPU boardSW operation GPIB/PIO can Preamp Preamp boardRear side connector Figure 2MEXA-1170 Series Electrical Block DiagramAs for the software’s internal system, we applied thecalculations, Zero/Span calibration, and creation of “Common Analyzer” ExampleMEXA-1170HCLDThe first analyzer which realizes the common analyzer conceptis the MEXA-1170HCLD stand-alone type NO/NOx analyzer). The major components such as NO/NOx detectors,and system parts maintain high analysis accuracy and reliabilityby applying the basic designs of the MEXA-7000. This enableddevelopment of a compact, low-price analyzer. This analyzerca

4 n be used not only as a standalone analy
n be used not only as a standalone analyzer but also as oneof the analyzer of a MEXA-7000 system. Figure 3External View of MEXA-1170HCLD 75 Technical Reports MEXA-1170NXWith the same concept, we developed the MEXA-1170NX170NX, which was not a part of theMEXA-7000. Oxidizing ammonia to NO has led toemployment of CLD measurement technology. This analyzeradvantages of the common analyzer concept. Figure 4External View of MEXA-1170NXMEXA-1170SXThe MEXA-1170SX (The detection principle uses Ultra Violet Fluorescence (UVF) to reduce NO interference to the UVF.This analyzer also employs the “Common Analyzer” concept SO SO NO Figure 5MEXA-1170SX Measurement Principle division, establishing the concept of a “Common Analyzer”This has been through reducing the manufacturing outlaybasic parts whose production is to be discontinued. Weof technology, research and development. H. Nakamura, N. Kihara, M. Adachi, K. Ishida,Development of a Wet-Based NDIR and Its Applicationto On-Board Emission Measurement System, to On-Board Emission Measurement System, H. Nakamura, N. Kihara, M. Adachi, S. Nakamura, K.Adachi, S. Nakamura, K.H. Nakamura, I. Asano, H. Ohashi, M. Adachi,Development of a new UVF Analyzer with O injectionfor Measurement of SOx and TRS in Vehicle Emission,SAE Fuel and Lubricants Paper 2004-01-1959 (2004). 2004-01-1959 (2004).S. Nakatani, T. Yoshimura, Y. Mori, N. Kihara, M.Adachi, Y. Goto, H. Suzuki, Development of a Real- Gas Analyzer Utilizing ChemiluminescenceDetection for Vehicle Emission Measurement, Power train & Fluid System Conference