KROHNE H250 M10 ATEX II3D Ex t EN - Manual (Page 14)

6
SERVICE
14
H250 M10
www.krohne.com 03/2011 - 4001348101- MA H250/M10-Ex-II3G-AD R01 en
6.2 Dismantling
Exchanging the built-in equipment
Due to the modular design of the variable area flowmeter, it is possible to replace a complete
signal converter and display with an identical spare part in accordance with safety guidelines.
Exchanging the entire device
Removal and installation are the responsibility of the operator.
Before disconnecting the electric connecting cable of the device, make sure that all cables
leading to the indication unit are isolated from the ground of the hazardous area. This also
applies to functional earthing conductors (FE) and equipotential bonding conductors (PA).
Faulty prisms (spacers) between the measuring tube and the display housing should be
replaced.
CAUTION!
There may be a loss of measuring accuracy!
CAUTION!
•
Pressurized pipes have to be depressurized before removing the measuring unit.
• In the case of environmentally critical or hazardous products, appropriate safety precautions
must be taken with regard to residual liquids in the measuring unit.
• New gaskets have to be used when re-installing the device in the piping.
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