13045_SearchlineExcelCrossDuct_PlasticFunctionalTestFilters_使用说明书手册指南0924_V3_0712_EMEAI

Searchline Excel Cross Duct:Plastic Functional Test FiltersDuct WidthMinimum Te线kerRecommended Test FilterNote:These fiters can be used with all Mod states of Searchline Excelunits,however they05-075mBBhave been specifically designed o work with cross-duct Excel units of Mod state 3 for075-1.0mBchigherl1.0-1.5mc0Testing ofMod state 2 (or lower)cross-duct Excel units should continue to be performedusing the original plas fc test filters,with the results to be anticipated detaled in Issue 8/915-20m◇of the Technical Handbook,2104M05062-3mE1.Functional Testing of Cross-Duct Searchline Excel3-4mGThe correct function of Searchine Exce Coss-Duct can beverified using plas fc funcfonal4-5mFHtest fiters.When intoduced into the measurement path,plas tc test fiters pooduce infraedabsorption which appoximates that of hydrocabon gas.5.If this is the first time that the unit has been tested with this particular test fiter,recodNote:Becausephstic filers have infrared absorpfon properties that anly approximate thosethe gas reading that is produced.This eading should be teated as corect and shoudof hydrocarbon gas,they cannot be used for tesing the calibration of cross-duct Searchlinebe used to verfy conect operation in the future.Excel unis.The only way df testing the calibration of a cross-duct Searchline Excel unit is by6.If this is not the first fme that the unit has been tested with this partcular fiter,note theusing high %w gas in the gassing cell,which is how cross-duct Searchine Excel units aregas reading it poduces and compare it to the orignal value recorded for this unit whencafbra起d in the factorytested with this fiter.Povided that the seading is within +15%LEL of the ofiginal value,The funcfonal test fiters supplied for tes fng caoss-duct SearchFine Excel units do not havethe unit is working conecthy.a specified gas reading range.Instead,they ae marked with letters B to H,with the reading7.If the gas reading is not within the expected range t is possible that the unit needspooduced by each fiter inceasing from fiter B to fiter H.clearing and e-zeroing.Refer to the Searchline Excel Cross-Duct Manual forThe procedure for testing across-duct Searchline Excel using the functional test filters is asinstructons.lollows:-8.Remove the test filter and eplace the top cover of the mounting cel.1.Connect the SHC-1 Handheld Intenogator to the unit to be tested.(See the Searchline9.Using the SHC1 Handheld Interrogator release the SearchFne Excel signal outputExcel Cross-Duct manual for details on how to connect the SHC-1).The output can be released by pressing ESC follbwed by+on the keyboard2.Select DISPLAY fom the Calibrate menu.(This inhbits the Seachine Excel Cross-Duct4-20mAoutput).10.Tum off the Interrogator and disconnect it from the gas detector.3.Remove the top cover fom the mounfng cell.The cover is retained by 3 x M4 captive bolts,and a chain attaches the lid to themounting cel when opened.There are no electcal hazards inside the mounting blockand a hot w