The SEMTECH FID measures total hydrocarbons using a vacuum flame ionization detector.

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Total Hydrocarbon 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 supports four ranges: 90, 300, 3000, 30000 ppmC.
  • 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: 30 minutes minimum;
60 minutes to meet performance specifications
Storage Temperature: Dry -10°C to 60°C ambient
Operating Environment: -10°C to 45°C ambient
Power Usage 300 Watts
Dimensions (WxDxH): 43.6 x 31.1 x 13.5 cm
17.2 x 12.3 x 5.3 in
Weight: 12.8 kg
28.2 lb
Data transmission: USB
Electromagnetic interference and susceptibility: CE Standards: IEC 61326: 2002-2


Supported ranges:
30000 ppmC
3000 ppmC
300 ppmC
90 ppmC
Linearity (all ranges):
|xmin x (a1 - 1) + a0 | ≤ 0.5% of selected range
Slope a1 between 0.99 and 1.01
Standard Error of Estimates (SEE) ≤ 1% of selected range
Coefficient of Determination r2 ≥ 0.998
≤ ±2% of reading or ≤ ±0.3% of full scale of selected range, whichever is larger
< ±1% of point (span) or < ±1% of selected range, whichever is larger
≤ 1% of selected range
≤ 2% of selected range
Zero drift:
≤ 1% of full scale of selected range over 1 hour
Span drift:
≤ 2% of full scale of selected range over 8 hours
Rise Time T10-90:
≤ 2.5 seconds
System Response Time T10-90 :
≤ 10 seconds with rise time ≤ 2.5 seconds
Data Rate:
5 Hz
Sample Flow Rate (nominal)
0.8 l/min
Gas Requirements
He / H2
Fuel consumption:
150 ml/min
Span gas:
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.