KROHNE VARIFLUX IFM 6080 K-EEx-i-EEx EN - Manual (Page 5)

ALTOFLUX IFM x080 K-EEx and ALTOFLUX IFM x080 K / i-EEx 5
In case of the MODIS version IFM 4080 K / i-EEx , the electronics unit of type IFC 090i-EEx is provided
with protective modules, which provide intrinsically safe output signals of category "ia".
The flowmeter is then marked with one of the following codes:
DN 10- 20
II 2GD EEx dme [ia] [ib] IIC T6…T3
(both EEx d and EEx e terminal compartment)
DN 25-150 II 2GD EEx d [ia] [ib] IIC T6…T3 (EEx d terminal compartment) or
II 2GD EEx de [ia] [ib] IIC T6…T3 (EEx e terminal compartment)
DN 200-300 II 2GD EEx dqe [ia] [ib] IIC T6…T3
(both EEx d and EEx e terminal compartment)
larger than DN 300 II 2GD EEx de [ia] [ib] IIC T6…T3
(both EEx d and EEx e terminal compartment)
For details see the EC-type Examination Certificate in Sect. 8.1 of these instructions.
Primary head
The primary head contains two field coils (see table for type of protection) and two electrodes in type of
protection intrinsic safety category "ib" according to EN 50020.
Types of protection of primary head
Meter size Type of protection
Field coils: Increased safety "e" according to EN 50019 and
encapsulating “m” according tö EN 50028. DN 10- 20
Electrodes: Intrinsic safety "ib" according to EN 50020
Housing: Flameproof enclosure "d" according to EN 50018 DN 25-150
Electrodes: Intrinsic safety "ib" according to EN 50020
Field coils: Increased safety "e" according to EN 50019 and
powder filling “q” according to EN 50017 DN 200-300
Electrodes: Intrinsic safety "ib" according to EN 50020
Field coils: Increased safety "e" according to EN 50019 larger than DN 300
Electrodes: Intrinsic safety "ib" according to EN 50020
NOTES:
• The intrinsically safe electrode circuits of the IFM 4080K/…-EEx compact flowmeter are
only internal circuits and not accessible for the customer
• In case of meter size DN 200-300 the coil housing is factory sealed. Do not open!
Data plates of ALTOFLUX IFM 4080 K
IFM 4080 K … EEx IFM 4080 K / i … EEx