FID5 | Flame Ionisation Detector

The FID5 is capable of time responses from 3 milliseconds, depending on sample line length. The sample line is manufactured from thin wall stainless steel, leading to a lightweight and slim construction necessary to ensure minimal disruption to flows surrounding the sample probe.

Typical applications include portable HC leak detection, HC tracer gas for dispersion studies, wind tunnel measurements and process control.

An additional remote head version is available for applications which require the box to be situated over 1 metre away from the measurement point. Similar time responses are available, but the FID5-R may be more suited for hard to reach areas.

Key specifications:

FID Fuel Type: Pure H2, H2/He or H2/N2 (H2 by default)

Response Time (T90-10%): >3 milliseconds

Sensitivity: 50 ppb/rootHz

Zero Drift: <1% of value per hour in stable ambient conditions

Span Drift: <1% of value per hour or <2ppm (whichever is greater)

Linearity: within 0.4% of value to 10,000ppm C in air

Sample pressure effect: <0.2% per mbar

Dimensions: W = 175mm, H = 195mm, D = 370mm

Power consumption: 65W (start up), 35W continuous

Differences from other Cambustion HC Analysers

The design differs from the other Cambustion fast gas analysers in three significant ways:

It is a single channel analyser.
Its detector is housed within a small control box with an unheated sample line delivering the gas from the sample point.
It is not capable of sampling at varying sample pressures due to the removal of the constant pressure system present in the FID50 and HFR500

Typically, the sample line length is <1 metre and with the option of a remote sample head for additional reach.

Like our other fast FIDs, the detection method is still using the trusted FID principle.

Typical applications include rapid leak detection from HC gas-carrying pipelines, mobile THC measurement, wind tunnel measurement of HC tracer gas mixing & dispersion, feedback control of biogas production and other process control applications.

Ultra-fast HC contamination detection in industrial processes

Ultra-fast HC measurement to identify fuel & oil contamination of containers is now possible with millisecond response. Cambustion’s FID5 has been adapted from a 30 year heritage of engine exhaust measurements and wind tunnel tracer gas applications to adapt it for process measurements where the high speed of passing product requires ultra-fast response to identify any “spikes” in hydrocarbon readings – indicating contamination.

With a 10-90% rise time from 3 milliseconds, this FID5 and FID5-R is ideal for process control and identification of hydrocarbon traces.

The system includes an unheated sample line (typically 1 metre long but remote sample head option available) whose sensing tip can be held either at a fixed location to sample from a passing production line or moved rapidly from point to point using a robot arm, needing to dwell at each position for only a few milliseconds to identify a trace of HC contamination.

The rapid time response means that process speed need not be limited by the detection time lag inherent in traditional hand-held and fixed format flame ionisation detectors (FIDs).

Key Application Notes

Title	Data Type	Download File	Size	Last Updated
Title	Combustion instability detection during catalyst heating phase of GDI cold start	Data Type	Application note	Download File	hfr09v01-gdi-cold-start-catalyst-heating-strategy-combustion-instability.pdf	Size	556.60 KB	Last Updated	24-08-2016
Title	Flame Traverse Sampling	Data Type	Application note	Download File	cld06v01-fast-gas-analysis-traversing-a-methane-flame.pdf	Size	1.69 MB	Last Updated	22-09-2015
Title	Gasoline Direct Injection (GDI) HC emissions	Data Type	Application note	Download File	hfr07v01-gdi-hc-emissions.pdf	Size	131.46 KB	Last Updated	24-02-2015