EASZ-2 Manual v1.12 - 12.2.2018 Page 19 / 30
4.9. Intrinsic Safety
When using EASZ-2Ex, the unit must only be connected to intrinsically safe certified equipment. This
association must be compatible to the intrinsic safety rules. The electrical parameters of this equipment
must not exceed the values indicated in the “ATEX Specification” table.
When using EASZ-2Ex the unit is intrinsically safe and an intrinsically safe isolator must be used before
the power supply in the safe zone and any units in the hazardous area. If the unit is powered by an IS
power supply then all the outputs are IS. If the unit is powered by a normal supply then all the outputs are
not IS.
When using EASZ-2Ex, the unit shall NOT be used with Zener barriers. Only IS barriers of the
isolator/galvanic type must be used.
Intrinsic Safety Schematic
To Next Page
Loading...
General