SEMTECH-FID: THC Analyzer
Sensors’ SEMTECH-FID measures total hydrocarbons using a vacuum flame ionization detector. The system is designed to minimize the loss of hydrocarbons prior to analysis in the FID chamber. The sample is maintained at 191°C through the use of a heated filter and heated sample line. Fittings are made with stainless steel, which has low gas adsorption properties. Warm up time from 20°C to 191°C is approximately one hour. Once the FID reaches temperature, the flame lights automatically. Calibration is also automatic. Freely adjustable measurement ranges ensure accuracy for a wide variety of test applications.
- Features
- Specifications
- Accessories
- Options
- 1065 Compliant: The SEMTECH-FID meets the US EPA 1065 compliance requirements for in-use testing.
- Automatic Flame Ignition: The FID flame will light automatically after 30 minutes of warm-up time.
- Automatic Calibration: The system will calibrate itself automatically after flame ignition.
- Measuring Range: The SEMTECH-FID has freely adjustable measurement ranges between 0-10 and 0-30,000 ppm C3H8.
- Sample Handling: Sample probe, heated filter, coalescing filter and Nafion dryer are integrated into the tube electronics. A heated sample line delivers the sample to the FID chamber at 191°C.
- Combustion Air: The system contains a catalyst, enabling the use of room air for the FID chamber combustion air.
- 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 is 220-240 VAC, with both current and voltage monitoring.
- 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 through the use of 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: | 220-240 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: | 12 kg |
| Data transmission: | Ethernet, USB |
| Electromagnetic interference and susceptibility: | CE Standards: IEC 61326: 2002-2 |
| Analog output current: | 0 - 20 mA or 4 - 20 mA |
| Analog output voltage: | 0 - 10V |
| Gas | THC |
|---|---|
Measuring ranges: |
freely adjustable |
Smallest measuring range: |
0 - 90 ppm C1 |
Largest measuring range: |
0 - 30,000 ppm C1 |
Accuracy: |
±1% rdg or ±0.3% FS (±1% FS for lowest measurement range) |
Linearity: |
Intercept ≤ 0.5% range (1% for lowest range) 0.990 ≤ Slope ≤ 1.01 SEE ≤ 1.0% range R2 ≥ 0.998 |
Repeatability: |
±1% rdg |
Zero drift: |
±1% in 24hr |
Analyzer Response Time: |
T10-90 < 2.5 seconds |
System Response Time: |
T10-90 < 3.5 seconds |
| Gas Requirements | |
Fuel: |
He / H2 |
Fuel consumption: |
150 ml/min |
Span gas: |
C3H8 |
Span gas consumption: |
500 ml/min |
Zero gas: |
N2 or air |
Zero gas consumption: |
500 ml/min |
| Heated Sample Lines | |
Standard lengths: |
6', 12', 18' |
Temperature control: |
up to 200°C |
- Heated Line: Heated lines come in 6', 12' and 16' standard lengths.
- Heated Control Module: A separate control box provides self-regulating power to the heated line.
- Dust Filter: A standard Briggs & Stratton air filter is fitted into the filter box on the rear of the unit.
- 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.

