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Gas Fact Sheets

ION Science Gas Fact Sheets are intended provide those dealing with hazardous gases an understanding of the gas and the detection capabilities that ION Science Gas Sensors offer.

Trichloroethylene

The ION Science trichloroethylene detection gas factsheet provides crucial information on ways of detecting trichloroethylene for workers safety.

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TVOC Sensor – Detect Total Volatile Organic Compounds

The ION Science TVOC detection gas factsheet provides crucial information on detecting tvocs and how they exist at room temperature for easy exposure risks.

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Vinyl chloride

The ION Science vinyl chloride detection gas factsheet provides crucial information on detecting vinyl chloride and its origin.

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Vinylene carbonate

The ION Science vinylene carbonate detection gas factsheet provides crucial information on detecting vinylene carbonate the main addictive in batteries.

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Xylene

The ION Science xylene detection gas factsheet provides crucial information on detecting xylene and how it affects our nervous system when exposed to it.

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Diffusion Vs. Pumped Fixed Gas Detection

Diffusion Fixed Gas Detection Device

A diffusion gas detection device works, as the name suggests, on the diffusion principle. The sensor is exposed to the ambient air and will measure the gas by means of the diffusion principle. Diffusion means proportional spread of molecules over the available space (from high concentration to low concentration). This also means that a diffusion gas detection device is only able to measure the concentration of gases at the location where the device is located. Since there is no forced flow of the gas to be measured, this device is not suitable for taking measurements remotely, but they do accurately identify what’s present in a given location.

Pumped Fixed Gas Detection Device

Pumped instruments are equipped with a built-in sampling pump. This means that the device is constantly drawing in gases. A sampling hose may be connected to extend the reach. This means that you can take a measurement from a safe distance so you have an idea of which gases will be present in which concentration before you are exposed to this environment. This allows you to make an appropriate risk analysis and make the right strategy and PPE choices based on the measurement results. By positioning the measuring hose correctly, you can also make a correct measurement at different heights to chart all risks.

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Comparative specifications
Sensor Variant	MiniPID 2 PPM WR VOC Sensor	MiniPID 2 PPM VOC Sensor	MiniPID 2 PPB WR VOC Sensor	MiniPID 2 PPB VOC Sensor	MiniPID 2 HS VOC Sensor	MiniPID 2 10.0 eV VOC Sensor	MiniPID 2 11.7 eV VOC Sensor
Electrode Stack Colour	Blue	Blue	White	White	Red	White + Gold Spot	White
Minimum Detection Limit	500 ppb	100 ppb	20 ppb	1 ppb	0.5 ppb	5 ppb	100 ppb
Range	0 to >10,000 ppm	0 to 4000 ppm	0 to >200 ppm	0 to >40 ppm	0 to >3 ppm	0 to >100 ppm	0 to >100 ppm
Response Time T90 (s)	<3	<3	<8	<8	<12	<8	<8
Sensitivity	>0.4 mV/ppm @ 100ppm	>0.65 mV/ppm @ 100 ppm	>5 mV/ppm	>30 mV/ppm	>600 mV/ppm	>15 mV/ppm	>1 mV/ppm
Lamp Energy	10.6 eV	10.6 eV	10.6 eV	10.6 eV	10.6 eV	10.0 eV	11.7 eV
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