KROHNE H250 M10 Скачать руководство пользователя страница 12 | Manualshive

Страница: 12 / 16

KROHNE H250 M10 Скачать руководство пользователя страница 12

4

ELECTRICAL CONNECTIONS

12

H250 M10

www.krohne.com

06/2012 - 4001058901- MA H250/M10-Ex-II2G-AD R02 en

4.4 Earthing and equipotential bonding

The signal converter shall be connected to the equipotential bonding system of the hazardous
area via the external grounding connection on the signal converter housing. The measuring unit
and the signal converter are electrically connected via an equipotential bonding conductor.

Any existing cable shields should be connected to earth according to applicable installation
regulations (EN 60079-14). A terminal connection in the terminal compartment permits a short
way earthing of the cable shields.

1

External grounding connection

2

Internal grounding connection

AD_H250_M10_II2G_R02_en_058901_PRT.book Page 12 Tuesday, June 26, 2012 7:20 AM

«
...
10
11
12
13
14
...
»

Содержание H250 M10

Страница 1: ...quipment category II 2G H250 M10 H250 M10 H250 M10 H250 M10 Supplementary instructions Supplementary instructions Supplementary instructions Supplementary instructions KROHNE 06 2012 4001058901 MA H25...

Страница 2: ...2 5 Equipment category 6 2 6 Protection types 7 2 7 Ambient temperature temperature classes 7 2 8 Electrical data 8 3 Installation 9 3 1 Installation 9 3 2 Special conditions 9 4 Electrical connection...

Страница 3: ...on his own responsibility conformity with the protection goals of Directive 94 9 EC for use in hazardous areas with gas The EC Type Test Certificate of the Physikalisch Technische Bundesanstalt PTB f...

Страница 4: ...signal output with optional HART communication two programmable electronic switch outputs and a reset input 2 2 Description code The safety description code consists of the following elements positio...

Страница 5: ...on code Additional markings on the housing cover SN serial number SO sales order item P A order Vxxx product configurator code AC article code 1 Device type 2 Manufacturer 3 ATEX DGRL certification ag...

Страница 6: ...riable area flowmeters are designed according to EN 60079 0 2009 and EN 60079 1 2007 in Category II 2 G for use in zone 1 The parts inside the measuring unit are also approved for use in zone 1 WARNIN...

Страница 7: ...a sheet The marking contains the following information The marking contains the following information The marking contains the following information The marking contains the following information II I...

Страница 8: ...of connecting cable 70 C 158 F 80 C 176 F 90 C 194 F C F C F C F C F T6 40 60 40 140 85 185 85 185 85 185 T5 40 50 40 122 100 212 100 212 100 212 40 60 40 140 85 185 100 212 100 212 T4 40 50 40 122 13...

Страница 9: ...h secure footing 3 2 Special conditions Equipotential bonding Variable area flowmeters must be included in the equipotential bonding of the hazardous area Electronics compartment lock The variable are...

Страница 10: ...079 1 Observe the requirements of the test certificate for the cable glands Direct entry of the connecting cables by way of conduits into the flameproof enclosed terminal compartment of the device Onc...

Страница 11: ...e press fitted U clamp PE terminal located in the terminal compartment If shields are to be grounded at both ends e g for EMC reasons adequate equipotential bonding is required between the two shields...

Страница 12: ...l converter housing The measuring unit and the signal converter are electrically connected via an equipotential bonding conductor Any existing cable shields should be connected to earth according to a...

Страница 13: ...cs compartment or digitally via the signal output HART interface 5 2 Operation Variable area flowmeters must be operated in such a way that they remain within the maximum and minimum permissible tempe...

Страница 14: ...e other temperature classes Before connecting or disconnecting the electrical connection cables of the device make sure that all cables leading to the converter are isolated from the ground of the haz...

Страница 15: ...s connections and the pipeline are depressurized and free of product Where environmentally critical products are concerned carefully decontaminate the wetted parts of the flange system after dismantli...

Страница 16: ...il gas industry Measuring systems for the marine industry Head Office KROHNE Messtechnik GmbH Ludwig Krohne Str 5 47058 Duisburg Germany Tel 49 0 203 301 0 Fax 49 0 203 301 10389 info krohne de KROHNE...

Отзывы:

Нет отзывов