SEMTECH-NOx: NO / NO2 Gas Analyzer
The analyzer meets the latest 2010 US EPA standards for vehicle emissions measurements, as defined in CFR40 part 1065, enabling laboratory grade measurements in a package that is rugged enough for both laboratory and in-use data collection.
- Features
- Specifications
- Accessories
- Options
- 1065 Compliant: The SEMTECH-FID meets the US EPA 1065 compliance requirements for in-use testing.
- Signal to Noise: The LED light source can be operated at very high frequencies, enabling an excellent signal to noise ratio.
- 6 Temperature Controlled Zones: Six temperature controlled zones ensure accurate data throughout a wide range of ambient temperatures with minimal drift.
- Optimized Signal Processing: Pre-amplifiers and ADC converters are designed to optimize dynamic range and resolution. This enhances longevity in regards to sample cell contamination and normal UV source aging.
- Sample Conditioning: When used in conjunction with the SEMTECH-FEM, the sample is filtered and cooled prior to analysis, minimizing contamination of the analyzers.
- Graphical Panel Display: A full color, graphic touch screen displays live data, and enables system setup and basic functions, such as zero and span.
- Power Supply Monitoring: Power can be either 12 VDC, 110 VAC, or 220 VAC, with both current and voltage monitoring.
- Dual Ports: Sample, air and exhaust ports are located on both the front face of the analyzer, and on the bottom. The bottom ports connect directly to the intake manifold of the SEMTECH-FEM, for a fast, simple connection of the two units. Front ports are available for the stand-alone configuration.
- Weatherproof Construction: All components meet IP54 (NEMA 3) standards.
- Shock Resistance: The mechanical design has been optimized for resistance to shock and vibration, ensuring data in the most rugged of in-use environments.
- Design Details: Over a decade of experience in in-use emissions testing has gone into the design details of the SEMTECH ECOSTAR system, including:
- EMI protection, including gaskets, filters and capped connectors
- Stress relief for pneumatic connections
- Channels for cable management
- Standard Swagelok™ bulkhead connectors
- Rugged Deutsch connectors for power and auxiliary connectors
- Handles that lock to other SEMTECH ECOSTAR modules for stable system integration
| Power: | 12 VDC nominal (10.5 - 14.5 VDC); 110 VAC or 220 VAC |
| Warm up Time: | 60 minutes to meet specifications |
| Storage Temperature: | Dry -10°C to 60°C ambient |
| Operating Environment: | -10°C to 45°C ambient |
| Dimensions: | 43.6cm x 30.8cm x 13.6cm (WxDxH) |
| Weight: | 13 kg |
| Data transmission: | Ethernet, USB |
| Electromagnetic interference and susceptibility: | CE Standards: IEC 61326: 2002-2 |
| Gas | NO | NO2 |
|---|---|---|
| Range | 0 - 3,000 ppm | 0 - 500 ppm |
| Accuracy | ±2% of rdg or ±0.3% | ±2% of rdg or ±0.3% |
| Resolution | 0.3 ppm | 0.3 ppm |
| Linearity | Intercept ≤ 0.5% range 0.990 ≤ Slope ≤ 1.01 SEE ≤ 1.0% range R2 ≥ 0.998 |
Intercept ≤ 0.5% range 0.990 ≤ Slope ≤ 1.01 SEE ≤ 1.0% range R2 ≥ 0.998 |
| Repeatability | ±1% rdg or ±1%FS* | ±1% rdg or ±1%FS* |
| Noise | < 1 ppm | < 1 ppm |
| Span Drift (8 hrs) | ±2% of span value | ±2% of span value |
| Zero Drift (1 hr) | ≤ 2 ppm absolute | ≤ 2 ppm absolute |
| Analyzer Response Time | T10-90 < 2.5s | T10-90 < 2.5s |
| System Response Time | T10-90 < 3.5s | T10-90 < 3.5s |
| Data Rate | ≤ 10 Hz programmable | ≤ 10 Hz programmable |
| Flow Rate (nominal) | 3 lpm | 3 lpm |
*whichever is greater
- Gas Interconnect: When used in conjunction with the SEMTECH-FEM, the interconnect joins the 2 analyzers through a manifold, eliminating the need for additional pneumatic lines.
- Dust Filter: A standard Briggs & Stratton air filter is fitted into the filter box on the rear of the unit.
- Low CO Optical Bench: Coming soon
- Vehicle Interface: Vehicle network data is obtained through the vehicle interface, recording important vehicle parameters along with the emissions data.
- Enhanced Accuracy GPS: The GPS receiver tracks the route taken by the vehicle under test, recording signal quality, date, time, latitude, longitude, altitude and speed.
- Weather Probe: The plug-and-play weather probe provides accurate humidity readings used in the emissions calculations.
- Shock Mount Plate: This custom designed shock mount plate protects your equipment by absorbing the inevitable vibrations that come with in-use testing.

