Device Categories; Ex Ia / Ex Iad-Approved Devices; Ex D[Ia] / Ex Td[Iad]-Approved Devices; Definitions Of Device Categories - Ametek DR6300 SERIES Supplementary Instructions Manual

GENERAL SAFETY INFORMATION
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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 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.
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DR6300 SERIES
DR6300-LM ATEX, EDO 2-13-118, Issue 1