Technical Specifications Measured Components SO2, NO, NO2, NH3 Measurement Principles Differential Optical Absorption Spectroscopy (DOAS) System Components Main Unit / Probe / Power Distribution Panel / Purge Motor Unit / Master Flange / Cables Min. Measuring Unit 0.1 ppm Accuracy < ±1% FS Span Drift (2 hours) < ±1% FS Repeatability < ±1% FS Probe Protector / Teflon Coated Probe ACU (Auto Calibration Unit) IP66 or NEMA 4X Regulator & Valve / Calibration Gas Response Time < 5 seconds Certificates Approvals Type Approval (Korea) TUV (Germany) CPA, CCEP (China) EAC, PAC (Russia) 01 Measures in the low wavelength UV range (200400nm) for high precision and minimal moisture interference 02 Utilizes the Differential Optical Absorption Spectroscopy (DOAS) method, eliminating the need for calibration 03 Selectively measures two gases out of NOx, SO2, and NH3 simultaneously 04 Enables individual NO and NO2 measurements without the need for a NOx Converter 05 Optional addition of a standard gas calibration device

Options DGA-X with ACU (Real Gas Calibration) Options DGA-X (Separated Control Unit) Other Specifications Measurement Conditions (Dperatmg _20 ~ +55 °C Probe Communication Analog Outputs Digital Outputs Digital Inputs Display & Input Device 2 Channel, 4 ~ 20 mA 4 Channel 2 Channel 7" LCD Monitor (Touch Screen) Materials Length Measurement Section Length Gas Flow Rate Weight Purge Motor Temperature Sensor Dimension & Power Supply Dimensions Weight Enclosure Rating Voltage Power Consumption Purge Motor Unit Dimensions Weight Voltage Power Consumption

Measurement Principles Differential Optical Absorption Spectroscopy (DOAS) Zero Drift (2 hours) < ±1% FS Span Drift (2 hours) < ±1% FS Response Time < 5 seconds System Components Main Unit / Probe / Junction Box / Purge System / Master Flange / Cables Features Options Purge Motor Unit (Air pump, Air filter, Air hose) 01 Explosion-proof model of the DGA-X 02 In-situ explosion-proof design reduces the need for a explosion-proof shelter, saving costs and minimizing space constraints 03 Measures in the low wavelength UV range (200400nm) for high precision and minimal moisture interference 04 Utilizes...