Installations and machines can provide certain dangers for humans and the environment. In order to meet the need for security, existing risks must be reduced. One parameter for this is the Safety Integrity Level (SIL), which makes the risk reduction quantifiable. Höntzsch Vortex flow meters have been SIL2 certified since 21.07.2008. But why stop there? As of 09.06.2019 our Vortex flow meters have been meeting the standards of SIL2/SC3 (SIL 3 in 1oo2 architecture).