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FID Analyser
HFID NA22SH

Total hydrocarbon analysis by heated flame ionisation (HFID) — all components in contact with the sample are thermally regulated to prevent condensation and measurement loss. 5.0" touchscreen display and RS-232 output.

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NAPRO HFID NA22SH FID Analyser

Reliable solution for total hydrocarbon analysis with HFID technology

The HFID NA22SH is NAPRO's total hydrocarbon analyser based on HFID (Heated Flame Ionization Detector) technology. The measurement principle consists of introducing a gas sample into a flame between two electrodes: the hydrocarbons ionise in the flame, generating an electrical current proportional to concentration, which is amplified and converted into a concentration value by the equipment's precision electronics.

All components in contact with the sample — inlet filter, valves, lines and measurement chamber — are thermally regulated to prevent condensation and consequent sample loss or contamination, ensuring accurate and repeatable results, especially for evaporative emission measurements in SHED chambers.

  • HFID technology — heated flame ionisation
  • All internal components with thermal regulation
  • Heated inlet filter — prevents condensation
  • 5.0" touchscreen display
  • RS-232 data output
  • Dedicated SPAN, ZERO and CHECK ports
  • Return valve for unanalysed samples
  • Control of up to 2 heated lines

Operating principle — FID

In the FID method, the gas sample is introduced into a hydrogen flame between two polarised electrodes. The hydrocarbons present ionise as they pass through the flame, releasing electrons and ions that generate an electrical current between the electrodes. This current is proportional to the number of carbon atoms in the sample — making FID especially sensitive and linear for total hydrocarbon (THC) quantification.

The HFID (Heated FID) variant keeps the entire sample path at a controlled temperature above the dew point of heavy hydrocarbons, preventing condensation that would cause sample loss and contamination — essential for accurate measurements in evaporative emission tests and chassis dynamometer tests.

Primary application: SHED chamber

  • Total hydrocarbon (THC) measurement inside the SHED chamber
  • Quantification of vehicle evaporative emissions
  • Permeation, hot soak and diurnal breathing loss tests
  • Integration with the NAPRO SHED chamber control system

Other applications

  • Chassis dynamometer tests with CVS (Constant Volume Sampler)
  • Emission checks in R&D laboratories
  • Industrial process monitoring with HC presence

Technical Specifications — HFID NA22SH

Technology HFID — Heated Flame Ionization Detector
Measured quantity Total Hydrocarbons (THC)
Display 5.0" Touchscreen
Data output RS-232
Heated line control Up to 2 lines
Calibration ports Dedicated SPAN, ZERO and CHECK
Return valve Yes — unanalysed samples
Thermal regulation All components in contact with sample
NAPRO HFID NA22SH touchscreen display NAPRO HFID NA22SH detail

Applications

SHED Chamber

Total hydrocarbon measurement in vehicle evaporative emissions inside SHED chambers for permeation and diurnal breathing loss tests.

Chassis Dynamometer

THC analysis of samples collected with CVS (Constant Volume Sampler) during chassis dynamometer emission tests.

R&D Laboratory

Development and validation tests for vehicles, engines and after-treatment systems requiring accurate hydrocarbon analysis.

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