(Flame Detectors) (Gas Detectors) PIDs (Photoionization detectors) (portable) PIDs VOCs (Volatileorganic compounds) ( 1 ppm) (PID Sensing) ( Figure 1) (UV) UV Lamp (1) (Photons) (eV) !:t : .i|| (Gas Chamber)(2) (Ionization) (negative electrode)(3) (collector electrode) (4) Gas Chamber VOC eV UV Lamp eV IP (Ionizing Potential) eV IP PID 10.6 eV Figure 1www.safetylifethailand.comPhotoionization Detectors (PIDs)Photoionization Detectors (PIDs) VOC IP 10.6 eV IP 10.6 eV PID VOC PID UV Lamp 9.8eV VOC IP 9.8 eVVOC IP 9.8 eV-10.6 eV PID UV Lamp 11.7 eV VOC IP 10.6 eV UV Lamp 10.6 eV UV Lamp IP VOC VOC ppm PID IP UV Lamp 10.6 eV VOC IP 10.6 eV Propy alcohol(10.22 eV), Phosphine(9.96 eV), Vinyl chlo-ride (10.00 eV), Acetaldehyde (0.22 eV) (Calibrate) Isobutylene (Responsefactors) ( Response factors UV Lamp ACGIH, NIOSH, OSHA ) Isobutylene ppm ppm 3 1.(PreprogrammedResponseFactors) ppm ppm ppm ThresholdLimitValues(TLVs)PermissibleExposureLimits (PELs) Ethylbenzene PID UVLamp 10.6 eV 62 ppm 2. (CustomizedResponse Factors) ppm PID Responsefactors ppm Isobutylene ( 100 ppm) Tetrahydrofuran Response factors UV Lamp 10.6 eV 2.1 100 210 Tetrahydrofuran 210 ppm Response factors ppm ppm 3. (Manually Calculated Response Factors) ppm VOC 1 2 ppm Isobutylene 10 ppm Cyclohexanone Responsefactors 0.82 10 ppm 8.2 ppm ppmCalibrate PID Calibrate PID MSA Sirius LED ppm Calibrate 15 Calibrate PID1. UV Calibrate PID 0-40 2. UV Lamp 10.6 eV ppm Calibrate ppm Calibrate PID 1 ppm (Gas chamber) 0 10% VOC PID 1 ppm ppm ppm PID HazMat 5ppm A 8.30 . 15 10 ppm A PID PID ACGIH 15ppm 15 ppm ACGIH PID (PPE) PPE HazMat ppm PPE PID ppm PID ppm ppm PID VOC ppm PID :Benzene, Toluene, Vinylchloride,Hexane, Ammonia, Isobutylene, StyreneJet A fuel,Allyl alcohol, Mercaptans,Trichloroethylene, Perchloroethylene,Propylene oxide, Phosphine PID :Oxygen, Nitrogen, Carbon dioxide,Sulfur dioxide, Carbon monoxide,Methane, Hydrogen fluoride,Hydrogen chloride, Fluorine,Sulfur hexafluoride, Ozone PID UV Lamp 9.8 eV VOC eV 9.6 Toluene (8.82 eV) Benzene (9.25 eV) Propylamine (8.78 eV) Styrene (8.40 eV) Vinyl acetate (9.19 eV) PID UV Lamp 10.6 eV VOC PID UV Lamp 9.8 eV VOC eV 10.6 Propy alcohol (10.22 eV) Phosphine (9.96 eV) Vinyl chloride (10.00 eV) Acetaldehyde (10.22 eV)