KROHNE OPTISONIC 6300 EEx EN - Manual (Page 7)

INTRODUCTION
1
7
OPTISONIC 6300
www.krohne.com 03/2010 - 7309972300 - EX OPTISONIC 6300 R03 en
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 by the PTB and are in accordance with the European Standards of the EN 60079
series. They have approval number:
OPTISONIC 6000 xxxxxx-Ex sensor: PTB 06 ATEX 2045 X PTB 06 ATEX 2045 X PTB 06 ATEX 2045 X PTB 06 ATEX 2045 X
UFC 300 F(/i)-Ex converter: PTB 06 ATEX 2046 X PTB 06 ATEX 2046 X PTB 06 ATEX 2046 X PTB 06 ATEX 2046 X
The FM FM FM FM approval original project ID is 3029326 3029326 3029326 3029326.
The CSA CSA CSA CSA approval certificate is 1956404 (LR 105802) 1956404 (LR 105802) 1956404 (LR 105802) 1956404 (LR 105802).
1.4 OPTISONIC 6000 xxxxxx-Ex
The OPTISONIC 6000 xxxxxx-Ex is a clamp-on ultrasonic flow sensor and has intrinsically safe
transducer circuits. It is available in three sizes (xxxxxx = small, medium or large), designed for
the size of the pipeline on which the flow sensor is installed.
It is marked with the explosion safety code:
II 2 G Ex ia IIC T6...T4
II 2 G Ex ia IIC T6...T4 II 2 G Ex ia IIC T6...T4 II 2 G Ex ia IIC T6...T4
II 2 G Ex ia IIC T6...T2
II 2 G Ex ia IIC T6...T2 II 2 G Ex ia IIC T6...T2 II 2 G Ex ia IIC T6...T2 (XT versions)
The intrinsically safe transducer connections of the OPTISONIC 6000 xxxxxx-Ex are connected to
an associated device and have the following maximum values:
U
i
= 8,5 V I
i
= 250 mA P
i
≤ 0,625 W C
i
≤ 4,5 nF L
i
≤ 400 µH