Industrial Automation Magazine India

NOx, SO₂, CO, CO₂: Non dispersive infrared sensor
O₂: zirconia sensor or paramagnetic sensor

1 component: NOx, SO₂, CO, CO₂
2 components: NOx + SO₂, NOx + CO
3 components: NOx + SO₂ + CO
4 components: NOx + SO₂ + CO + CO₂
O₂ measurement can be added to above all.

NOx: 0–50 ppm…5000 ppm
SO₂: 0–50 ppm…5000 ppm
CO: 0–50 ppm…5000 ppm
CO₂: 0–10%…20%
O₂: 0–10%…25%

±0.5% FS

≤ ±1.0% FS per week
Ranges below 200 ppm: ≤ ±2.0% FS per week
In O₂ measurement: ≤ ±2.0% FS per month

≤ ±2.0% FS per week
In O₂ measurement: ≤ ±2.0% FS per month

±1.0% FS

≤ 120 s (for 90% response, from the analyzer inlet)
≤ 240 s for SO₂ measurement

• 4–20 mA DC (linear)
(instantaneous values, O₂-corrected instantaneous values, O₂-corrected average values, O₂ average)
• Contact output
(CO peak count and alarm, concentration alarm, under auto calibration, device error, etc.)

Auto-calibration start, average reset, range switch, output hold, pump ON/OFF, etc.

Auto calibration, O₂ correction, averaging, CO peak count and alarm, data recording

-5°C to +40°C or -10°C to +40°C, RH 90% or lower

100, 110, 115, 200, 230 V AC, 50/60 Hz

800 (H) × 1710 (W) × 615 (D) mm, for indoor use
Houses six 3.4 L standard gas cylinders

Standard: ≤ 800°C
Non-standard: ≤ 1000°C or 1300°C

≤ 100 mg/Nm³

-3 to +3 kPa

SO₂: ≤ 500 ppm
NOx: ≤ 1000 ppm
CO₂: ≤ 15%
CO: ≤ 2000 ppm
HCl: ≤ 1000 ppm