THE COMPLETE SOLUTION FOR EMISSIONS TESTING
The mega compaa HG4 impresses with the latest technology for reliable emissions testing and intuitive operation. With mega compaa HG4 you can carry out all exhaust gas diagnostics quickly and conveniently. The basic unit with proven petrol measurement technology is complemented by the opacimeter HG4-DMK and HG4-PCK including tubing and exhaust gas probe. The mega compaa HG4 comes with a large TFT display in HD-ready format on request. mega compaa HG4 fulfils all the guidelines for an exhaust emissions test that arise from current current legislation. New target data can be updated several times a year with the optional AU-Update Plus licence can be downloaded several times a year.

WELL PREPARED FOR FUTURE EMISSIONS TESTS
Since July 2023, the measurement of the particle number concentration for diesel vehicles 
with compression ignition engines from emission class Euro 6/VI. 
For these vehicles, this new measurement procedure replaces the previous 
opacity measurement previously carried out as part of the HU/AU in 2023. 
The opacimeter will continue to be used for tailpipe measurements on all other diesel vehicles. 
opacimeter will continue to be used. This means that two measuring devices will have to be available in parallel for tailpipe tests in future. The new HG4-PCK auxiliary device from Hella Gutmann is fully compatible with the current mega compaa HG4 exhaust gas analyser and operates operates according to the DC principle (Advanced Diffusion Charging). This means that the particle count is determined by electrically charging and discharging the particles. For customers who already own a mega compaa HG4, the HG4-PCK is available as an upgrade package. In future, new customers will be able to purchase a fully equipped version that includes both the professional package HG4 II and the particle counter HG4-PCK.