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DXG GGA-70-1

DXG GGA-70-1

Features
  • Measures ionization reactions based on EMF changes between platinum (Pt) electrodes using zirconia (ZrO₂) principle, converted into oxygen concentrations
  • Employs a K-type thermocouple for excellent linearity between temperature and EMF
  • Maintains measurement accuracy through periodic automatic self-check cycles
  • Utilizes an IC with built-in cold junction compensation (CJC) functionality
  • Minimises noise and protects heater lifespan with zero-crossing functionality
  • Explosion-proof model available (GGA-70 Ex.)
System Components
  • Detector / Analyzer Main Unit / Analyzer Panel
  • Calibration Gas Unit / Master Flange / Cables
Options
  • Detector Protector / Teflon Coated Detector
  • IP66 or NEMA 4X
  • Calibration Gas (Zero Gas, Span Gas, 2 Stage Regulator)

Data Sheets

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CEMS: Flue Gas

Technical Specifications

Measured ComponentsO₂
Measurement PrinciplesZirconia (ZrO₂)
Measuring RangesMin 0 ~ 25 / Max 0 ~ 100 %
Min. Measuring Unit0.01 %
Zero Drift (168 hours)< ± 1 % FS
Span Drift (168 hours)< ± 1 % FS
Repeatability< ± 0.2 % FS
Linearity< ± 1 % FS
Response Time< 5 seconds

Measurement Conditions

Operating Temperature-20 ~ +55 ℃
Operating RH0 ~ 95 % RH
Gas Temperature0 ~ 800 °C
Gas Pressure-5 ~ 250 kPa

Communication

Analog Outputs2 Channel, 4 ~ 20 mA
2 Channel, 1 ~ 5 VDC
Digital Outputs4 Channel
Digital Inputs2 Channel
Display & Input Device7 inch LCD Monitor (Touch Screen) / USB
InterfaceRS232, 422, 485 / LAN (Ethernet) / Hart
Storage DeviceFlash Memory

Dimension & Power Supply

DimensionsW 400 x D 200 x H 560 mm
Weight14 kg
Enclosure RatingIP 65
Voltage110 / 220 VAC, 50 / 60 Hz
Power Consumption500 W

Detector

MaterialsSUS 316 L or SUS 316 Ti
Length1.0 m, 1.5 m
Weight1.0 m : 10 kg
1.5 m : 15 kg
Heating Temperature+750 °C
Temperature SensorPT 1000 (Optional)

Calibration Gas Unit (Frame Type)

MaterialsSUS 304
DimensionsW 1650 x D 340 x H 340 mm
Weight14 kg
Operating Temperature0 ~ +40 °C

Calibration Gas Unit (Panel Type)

MaterialsSUS 304
DimensionsW 680 x D 350 x H 1650 mm
Weight35 kg (46 kg including base)
Operating Temperature-20 ~ +60 °C

IA (Instrument Air) Consumption

Analyzer0.2 m³/h