KGD-WQ-504 Portable Emission Testing System (PEMS)
Product Overview
The KGD-WQ-504 Portable Emission Testing System is specifically designed for in-use vehicle on-road emission tests. It can continuously and real-time measure or collect volume concentrations of air pollutants including CO, CO₂, NO, NO₂, NOₓ, O₂, and THC, as well as particulate matter number concentration, exhaust gas flow, global positioning data, meteorological data, and OBD parameters.
The system features test process guidance, automatic calculation of total emissions, and export of test reports, meeting certification tests, in-use compliance tests, and related research and development test requirements for global vehicle on-road emission regulations.
Product Features
- Core sensing technology under independent control
- One-stop service throughout the entire life cycle
- Small in size, light in weight, and low energy consumption
- Easy to install and use with lithium-ion battery life exceeding 8 hours
- Modular design with plug-and-play functionality
- Flexibly meets various regulatory and R&D test requirements
- High-standard waterproof and shockproof construction
- Maintains stable test performance under various harsh working conditions
Technical Specifications
Host System - Gas Analyzers
| Gas Component |
CO |
CO₂ |
NO |
NO₂ |
| Measurement Principle |
NDIR |
NDIR |
NDUV |
NDUV |
| Measuring Range |
0 - 0.5 - 5% |
0 - 5 - 20% |
0 - 3000 ppm |
0 - 1000 ppm |
| Response Time |
T10-90 < 2.5s |
| Accuracy |
≤ ±2.0%RS or ≤ ±0.3%FS |
| Linearity |
Determination coefficient: ≥ 0.998; Standard deviation: ≤ 1% F.S.; Slope: 0.99-1.01; Intercept coefficient: ≤ 0.5% F.S. |
| Repeatability |
≤ ±0.5% F.S. |
| Drift |
≤ ±1% F.S./8h |
| Operating Environment |
Operating temperature: -10 to 45°C; Relative humidity: ≤ 90%RH; Altitude: 0-3000m |
Exhaust Gas Flow Measurement
| Temperature Range |
-5 to 500°C |
| Exhaust Gas Temperature Measurement Accuracy |
≤ ±1% reading or ± 2°C |
| Exhaust Gas Flow Measurement Range |
10-600kg/h; 100-2000kg/h |
| Exhaust Gas Flow Measurement Accuracy |
≤ ±2.0% reading or ≤ ±0.5% full-scale value |
| Exhaust Gas Flow Measurement Linearity |
Determination coefficient: ≥ 0.990; Standard deviation: ≤ 1% full-scale value; Slope: 0.99-1.01; Intercept coefficient: ≤ 1% full-scale value |
| Response Time |
< 1s |
THC/CH₄ Analyzer
| Gas Component |
THC |
THC |
CH₄ |
CH₄ |
| Measurement Principle |
HFID |
HFID |
NMC-FID |
NMC-FID |
| Minimum Range |
0 - 100 ppmC |
0 - 100 ppmC |
0 - 100 ppmC |
0 - 100 ppmC |
| Maximum Range |
0 - 10000 ppmC |
0 - 10000 ppmC |
0 - 3000 ppmC |
0 - 3000 ppmC |
| Response Time |
T10-90 < 2.5s |
| Accuracy |
≤ ±2.0% MRS or ≤ ±0.3% F.S. |
| Linearity |
Determination coefficient: ≥ 0.998; Standard deviation: ≤ 1% F.S.; Slope: 0.99-1.01; Intercept coefficient: ≤ 0.5% F.S. |
| Repeatability |
≤ ±0.5% F.S. |
| Drift |
≤ ±1% F.S./8h |
PN Analyzer (Particulate Number)
| Minimum Particle Size Limit |
23 nm or 10 nm |
| Measurement Principle |
Electrical charge counting method |
| Measuring Range |
600 - 1.3×10⁹ #/cm³ |
| Measurement Accuracy |
≤ ±10% |
| VPR Removal Efficiency |
>99.0% (C40) |
| Response Time |
T90 < 5s |
NH₃/N₂O Analyzer
| Gas Component |
NH₃ |
NH₃ |
N₂O |
N₂O |
| Measuring Range |
0 - 1000 ppm |
| Response Time |
T10-90 < 2.5s |
| Accuracy |
≤ ±2.0% MRS or ≤ ±0.3% F.S. |
| Linearity |
Determination coefficient: ≥ 0.998; Standard deviation: ≤ 1% F.S.; Slope: 0.99-1.01; Intercept coefficient: ≤ 0.5% F.S. |
| Repeatability |
≤ ±0.5% F.S. |
| Drift |
≤ ±1% F.S./8h |