KROHNE CAPAFLUX EEx-ATEX EN - Manual (Page 3)

CAPAFLUX IFM 5080 K/CAP-EEx and CAPAFLUX IFM 5080 K/CAP i-EEx 3
1 System components
1.1 General information
This compact flowmeter complies with the European Directive 94/9/EC (ATEX 100a) and has been
approved for hazardous classified locations of Zone 1 and 2 under EC-type Examination Certificate
number:
KEMA 01 ATEX 2232 X
The compact flowmeter is available in two types, namely:
• IFM 5080 K/CAP-EEx regular explosion protected version;
• IFM 5080 K/CAP i-EEx, MODIS version. This type has intrinsical safe signal output circuits, which
are provided by two MODIS modules that are installed on the IFC090 K/CAP/i-EEx electronics unit.
Temperature classification
The regular IFM 5080 K/CAP-EEx compact flowmeter is designed for ambient temperatures (T
a
) of
-20°C (special -40°C) up to +60°C.
The allowed process liquid temperature is a.o. limited by the maximum occuring surface temperature of
systems components in the combustible atmosphere that (possibly) surrounds the apparatus (first
column of the table). For dusts the second column of the table applies. Details see following table.
Maximum process liquid temperature Temperature
class
(for gases) Max. surface
temperature
(for dusts)
T
a
≤ 40°C
T
a
≤ 50°C
T
a
≤60 °C
T6 T 85°C 60°C 55°C not allowed
T5 T 100°C 75°C 75°C 75°C
T4 T 115°C 115°C 115°C 75°C
The IFM 5080 K/CAP…-EEx compact flowmeter consists of the IFC 090 / CAP/…-EEx signal converter
unit, which is screwed on top of the IFS 5000 CAP-EEx primary head (i.e. measuring unit). The regular
compact flowmeter is marked with one of the following codes below, depending on the type of
protection of the terminal compartment:
II 2 GD EEx d IIC T6…T4 (EEx d terminal compartment) or
II 2 GD EEx de IIC T6…T4 (EEx e terminal compartment)
In case of the MODIS version IFM 5080 K/CAP i-EEx, the electronics unit of type IFC 090 / CAPi-EEx
is provided with protective modules, which provide intrinsical safe output signals of category "ia". The
flowmeter is then marked with the codes:
II 2 GD EEx d [ia] IIC T6…T4 (EEx d terminal compartment) or
II 2 GD EEx de [ia] IIC T6…T4 (EEx e terminal compartment)
For details see the EC-type Examination Certificate in Sect. 7 at the end of these additional
instructions.