KROHNE OPTISONIC 7300 Ex EN - Manual (Page 8)

1
INTRODUCTION
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OPTISONIC 7300 / 8300
www.krohne.com 05/2012 - 7312262200 - AD EX OPTISONIC 7300/8300 R02
1.3 Approval
The ultrasonic flowmeters are manufactured according to the European Directive 94/9/EC (ATEX
100a). These flowmeters are approved for installation and use in hazardous classified locations
of Zone 1 and 2 and are in accordance with the European Standards of the EN 60079 series. They
have approval number:
OPTISONIC 7300: PTB 10 ATEX 1052 X PTB 10 ATEX 1052 X PTB 10 ATEX 1052 X PTB 10 ATEX 1052 X and DEKRA 12 ATEX 0063 X DEKRA 12 ATEX 0063 X DEKRA 12 ATEX 0063 X DEKRA 12 ATEX 0063 X
OPTISONIC 8300: DEKRA 12 ATEX 0063 X DEKRA 12 ATEX 0063 X DEKRA 12 ATEX 0063 X DEKRA 12 ATEX 0063 X
1.4 OPTISONIC 7300 C/...-Ex
The OPTISONIC 7300 C/...-Ex is the compact configuration of the GFC 300 ultrasonic flow
converter and the OPTISONIC 7000 ultrasonic gas flow sensor. The gas flow sensor contains
flameproof (Ex d) gas transducers made of titanium or flameproof (Ex d) transducers with a
partly encapsulated (Ex ma) synthetic front. The gas flow converter is provided with non-Ex or
intrinsically safe (Ex ia or Ex ib) signal outputs that are located in the terminal compartment,
which can either be configured as “Ex d” (flameproof enclosure) or “Ex e” (increased safety).
The marking code can be:
1.5 OPTISONIC 7000...-Ex
The OPTISONIC 7000...-Ex is the separate version of the ultrasonic flow sensor and has
flameproof (Ex d) gas transducers. It is available in two versions, the normal version up to a
process temperature of 180°C and the extended temperature (XT) version up to a 220°C process
temperature.
The marking code can be:
"Ex d" terminal compartment "Ex e" terminal compartment
II 2 G Ex d IIC T6...T3 II 2 G Ex de IIC T6...T3
II 2 G Ex d [ia] IIC T6...T3 (PTB)
II 2 (1) G Ex d [ia] IIC T6...T3 (DEKRA)
II 2 G Ex de [ia] IIC T6...T3 (PTB)
II 2 (1) G Ex de [ia] IIC T6...T3 (DEKRA)
II 2 G Ex d [ib] IIC T6...T3 II 2 G Ex de [ib] IIC T6...T3
II 2 G Ex d ma IIC T6, T5 II 2 G Ex de ma IIC T6, T5
II 2 G Ex d ma [ia] T6, T5 (PTB)
II 2 (1) G Ex d ma [ia] T6, T5 (DEKRA)
II 2 G Ex de ma [ia] T6, T5 (PTB)
II 2 (1) G Ex de ma [ia] T6, T5 (DEKRA)
II 2 G Ex d ma [ib] T6, T5 II 2 G Ex de ma [ib] T6, T5
OPTISONIC 7000-Ex OPTISONIC 7000 XT-Ex
II 2 G Ex d IIC T6...T3 II 2 G Ex d IIC T6...T2
II 2 G Ex d ma IIC T6, T5