KROHNE OPTIWAVE 7300C ATEX EN - Manual (Page 5)

GENERAL SAFETY INFORMATION
1
5
OPTIWAVE 7300 C
www.krohne.com 06/2010 - 4000091504 - AD ATEX OPTIWAVE 7300 R06 en
1.4 Device categories
1.4.1 Ex ia / Ex iaD-approved devices
These devices are suitable for use in potentially explosive atmospheres of all flammable
substances in Gas Groups IIA, IIB and IIC. The Ex ia-approved device is certified for applications
requiring Category 1 G (gases, vapours or mists), 1/2 G or 2 G equipment when fitted with the
appropriate options. The Ex iaD-approved device is certified for applications requiring Category
1 D (dust), 1/2 D or 2 D equipment when fitted with the appropriate options.
1.4.2 Ex d[ia] / Ex tD[iaD]-approved devices
These devices are suitable for use in potentially explosive atmospheres of all flammable
substances in Gas Groups IIA, IIB and IIC. The Ex d[ia]-approved device is certified for
applications requiring Category 1/2 G (gases, vapours or mists) or 2 G equipment when fitted
with the appropriate options. The Ex tD[iaD]-approved device is certified for applications
requiring Category 1/2 D (dust) or 2 D equipment when fitted with the appropriate options.
1.4.3 Ex nA devices
The Ex nA version of this device is suitable for use in potentially explosive atmospheres of all
flammable substances in Gas Group II. It is designed for applications requiring Category 3 G
equipment when fitted with the appropriate options.
1.4.4 Definitions of device categories
Category 1 Category 1 Category 1 Category 1
The device is installed in hazardous areas requiring Category 1 G or 1 D equipment.
Category 1/2 Category 1/2 Category 1/2 Category 1/2
The signal converter is installed in hazardous areas requiring Category 2 G or 2 D equipment.
The probe is installed in hazardous areas requiring Category 1 G or 1 D equipment.
Category 2 Category 2 Category 2 Category 2
The device is installed in hazardous areas requiring Category 2 G or 2 D equipment.
Category 2/3 Category 2/3 Category 2/3 Category 2/3
The signal converter is installed in hazardous areas requiring Category 3 G or 3 D equipment.
The probe is installed in hazardous areas requiring Category 2 G or 2 D equipment.
Category 3 Category 3 Category 3 Category 3
The device is installed in hazardous areas requiring Category 3 G or 3 D equipment.
INFORMATION!
These devices can also be used for applications requiring Category 2/3 or 3 equipment.
INFORMATION!
These devices can also be used for applications requiring Category 2/3 or 3 equipment.