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3operation of the signal converter, 4 maintenance, 5 ordering information – KROHNE ALTOFLUX 2W IFM 4042K EEx-ATEX EN User Manual

Page 11: 6 technical data

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ALTOFLUX 2W IFM 4042 K - EEx

11

3

Operation of the signal converter

The IFM 4042 K-EEx contains the IFC 040-EEx signal converter electronics unit, which is
equipped with a display unit that contains magnetic Hall sensors. These Hall sensors enable the
settings of the IFC 040-EEx electronics unit to be set respectively reset with the help of the with
the apparatus delivered bar magnet without opening the flameproof signal converter housing in
the hazardous area.

Consult the standard Installation and Operating Instructions for the program functions of the
software of the IFC 040-EEx electronics unit.

4 Maintenance

The IFM 4042 K-EEx magnetic-inductive compact flowmeters are maintenance free with regard to
the flowmetering properties. Within the scope of the periodical inspections, which are required for
electrical apparatus that are installed and used in hazardous classified locations, it is
recommended to check the flameproof enclosures on signs of damage or corrosion. This
concerns the converter housing and for sizes DN25 till DN150 also the primary head housing.

5 Ordering

information

In case of questions about spare or replacing parts contact your local Krohne representative. The
part number of the IFC 040-EEx electronics unit is 2.12896.01.00.

6 Technical

data

Safty technical note
The following maximum safty technical process liquid temperatures are absolute safety-technical
limits. Due to function-technical reasons (e.g. measuring accuracy) lower process liquid
temperatures can be in effect, see also the standard installation and operating instructions of the
Altoflux 2W electromagnetic compact flowmeter type IFM 4042 K-EEx!

Ambient temperature Ta

-40°C…+60°C


Maximum saftety technical process liquid temperature

see EC-Certificate of the IFM 4042 K-EEx with No. KEMA 01

ATEX 2200 X in Sect. 9 and the Tables in Sect. 1.1