粒度计4.18.4 PARTICLE SIZE ANALYSERThe scope includes design, manufacture, supply, erection & commissioning of OFF line particle size analyser and its associated accessories (hardware & software). The scope shall include but not limited to following items: 01 Sampling system (Screw type sampler) 02 Sample Analysis system 03 Equipment / devices for feeding the samples back to process after analysis 04 PC for particle size analyser with required software for speed control of mill separator for fineness control. 05 Communication accessories like communication cable and media converters for interfacing particle size analyser data to plant DCS system 06 compressed air system including compressor & air filter regulator & receiver. 07 Spares for two years normal operation 08 Erection & commissioning of the system 09 On site service warrantee of minimum two years 10 special tools & tackles , if required • Measurement : Dynamic scattering theory laser diffraction • Measuring Method : In – line and real time • Samples : Dry powder, suspension, emulsion • Laser Power : 5mw or more ( min. 2 laser or more) • Accuracy : < + 1 % • Repeatability : < + 0.5% or less • Standard Deviation : < + 2 % • Size range : Dry mode 0.1 micro to 350 micro or 800 micro • Source of laser : HeNe laser (No diode) • Detector : Photo diode array or better (multi- element auto focus 8.4.1 TECHNICAL SPECIFICATION &REQUIREMENTSdetector) • Optics : Parallel laser beam • Classic optical fourier • No. of lense (single or • Laser Diffraction : Forward scattering in parallel beam • Diffraction Theory : Fraunhofer diffraction theory or MIE + Fraunhofer set up to (ISO 13320) : Bidder to confirm multi with auto selection) : Bidder to confirmData Communication to DCS : Optical Fiber • Interfaces : Ethernet LAN connection (100 MB / sec) • Dry Powder Dispersing • Range to Analyse the micro • Automatic laser beam adapter : Require ( fixed type laser beam adaptor is not required) • Auto focusing, auto ranging and • Lense Cleaning Procedure : Auto Cleaning • Sonication powder : Min. 35 w or higher supplier to confirm • Mode of operation : Dry mode operation • Operating design temperature : 50 Deg C • PC/ Computer specification (min.). : Processor i7, 67 bit, window10 or better, Memory 8 GB, 1 TB SATA, Monitor 24” LED with suitable interface port to connect with particle size analyser electronics / controller. The machine / computer shall be suitable to interface with plant DCS on OPC to control the speed of separator , data analysis and report generation. • Reference materials : The system shall be supplied with reference materials / verification standard meeting the requirements of ISO 13320:2009 with test certificate having traceability to NIST 114Q standard of cement fineness • Accessories : Low noise compressor with resevior and all necessary fittings, air filter regulator etc. • Special tools & tackles : To be included in scope, if any system : Supplier to confirm sized powders : 0.1Micron Auto alignment : Require