User guide

DEVICE DESCRIPTION 2

H250 M40

www.krohne.com07/2012 - 4002069601 - MA H250/M40-Ex-II2GD-AD R01

2.3 Marking

Type designation of the complete unit is shown on the indicator with the rating plate reproduced

below (see also description code).

Additional markings on the housing cover:

• SN - serial number

• SO - sales order / item

• PA - order

• Vxxx / Sxxx - product configurator code

• AC - article code

Additional plate

The association of the housing cover to the device is confirmed by an additional plate with the

serial number on the interior of the indicator part.

Figure 2-1: Example of a rating plate

1 Device type

2 Manufacturer

3 ATEX & DGRL certification agency code.

4 Sizing data: temperature & pressure rating

5 PED data

6 Ex data

7 Electrical connection data

8 Note on observing documentation

9 Website of the manufacturer

AD_H250_M40_II2GD_R01_en_4002069601_PRT.book Page 5 Friday, July 27, 2012 8:17 AM