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Is there any way to change (in either new or old relux) the default minimum required illuminance level? Working to BS standards specifies 0.5 lux for open plan areas and 1.0 for escape routed / panic areas. We get questions from clients as to why our calcs to BS standards don't meet the default minimum illuminance as shown on the emg calc results table page.

In Relux Desktop 2017 you need to go to the emergency area tab and change the minimum here, then it should show in the output correctly.


In earlier version of relux click on the emergency calc surface, right click (or control + B) and go to properties, then change the minimum level from 1 to 0.5

Hope this helps


 Cheers, Jon.

We did find this a couple of days later after digging through the settings.

I think I was approaching this from the wrong angle by looking for a program default global setting, rather than in individual emg ref plane property.

Hi Jon,

is there a way to make 1lx a default setting? Changing lux level as you proposed works only for a single emergency area. 

Dear Lucija Lokas

Unfortunately, the default illuminance value of the emergency area cannot be changed.

Best regards,

Relux Informatik AG
Basile Schlegel
Relux Support

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