1Automobile emission gas analyzerMeasurement range: CO: 0-10.0 10-2 (%)
CO2: 0-20.0 10-2（﹪）
H C: 0-10000 10-6（ppm）
O2: 0-25.0 10-2（﹪）
Oil temperature: 18-150 ℃
Speed: 100-20000rpm
2Automobile emission gas analyzerRepetitive error: ≤± 2%
3. Zero drift: CO: ± 0.06 10-2 (%)/1h
CO2: ±0.5 10-2（﹪）/1h
HC: ±30 10-6（ppm）/1h
O2: ±0.5 10-2（﹪）/1h
4Automobile emission gas analyzerRange drift: not exceeding the allowable value of indication error (1 hour)
5. Indication error: CO: ± 10% (relative error, 0-10%)
CO2: ± 5% (relative error, 0-16%)
± 10% (relative error, 16.01-20%)
HC: ± 3% (relative error, 0-2000ppm)
± 5% (relative error, 2001-5000ppm)
± 10% (relative error, 5001-10000ppm)
O2: ± 5% (relative error, 0-25%)
Oil temperature: ± 2 ℃ (absolute error)
Speed: ± 1.0% (relative error)
6Automobile emission gas analyzerEnvironmental conditions: Temperature: 0 ℃ -40 ℃
Humidity: ≤ 80%
Atmospheric pressure: 60-105kPa
Power supply: AC 220V ± 10%; 50Hz

7Automobile emission gas analyzerPreheating time: 10 minutes
8. Sampling method:
Exhaust gas: direct sampling, with a sampling tube length of 5M and a sampling probe length of 900mm.
Oil temperature: Insert the probe into the hole of the engine lubricating oil dipstick, with a length equal to the length of the dipstick, and block it with a rubber plug to prevent oil from spraying out. Wire length: 5M;
Speed: Non contact measurement method, as long as the distance between the high-voltage flexible wire near the gasoline engine is not more than 20 centimeters, the speed of the gasoline engine can be determined.