Minimum Ignition Energy Apparatus ‚MIKE‘

1992 – 2016 manufactured by Adolf Kühner AG, Birsfelden, Switzerland

2016 – 2024 manufactured by TÜV SÜD Schweiz AG, Basel, Switzerland, under licence from Cesana AG, Bettingen, Switzerland

From 2025 manufactured by REMBE® Research+Technology Center GmbH, Brilon, Germany, under licence from Cesana AG, Bettingen, Switzerland

Apparatus for determining the minimum ignition energy of dust/air mixtures.

Minimum ignition energy (MIE) is the lowest energy value that a high-voltage capacitor discharge must apply, to ignite the most ignitable dust/air mixture. These indices are determined in accordance with international standards in the MIKE laboratory apparatus:

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MIKE3-neu
EN 13821
Determination of minimum ignition energy of dust/air mixtures
EN ISO/IEC 80079-20-2
Explosive atmospheres. Material characteristics. Combustible dusts test methods
ASTM E2019
Standard Test Method for Minimum Ignition Energy of a Dust Cloud in Air
Test condition \ Apparatus
MIKE3
MIKE4
Atmospheric
✅
✅
Increased temperature
➡️
✅
Reduced oxygen
➡️
✅

Operation

A modified Hartmann tube made of glass with a volume of 1.2 liter is used as the explosion vessel. The dust dispersion system at the base of the tube is of the “mushroom-shaped” type around which the sample is loosely scattered. A blast of compressed air at 7 bar is used to disperse the dust in the glass cylinder where it is ignited by a spark between two electrodes.

Measurement Range

Experiments have shown that dust/air mixtures can easily have MIE values less than 10 mJ. The measurement range of the MIKE 3 has thus been extended to lower energy values. The high-voltage component has been specially designed for the low ignition energies. Thanks to pneumatically actuated high-voltage switches, the parasitic capacitances have been reduced by an order of magnitude.
Energy range: 1mJ … 1000mJ

 

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NEW Software MIKE 4.0

for MIKE3-CAN and MIKE4-CAN

Find the manual, updates and more information here
Example 1: MZE vs temperature (parameter = oxygen content)
Example 1: MZE vs temperature (parameter = oxygen content)
Example 2: MZE vs oxygen content (parameter = temperature)
Example 2: MZE vs oxygen content (parameter = temperature)

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