1 system components, 1 general information – KROHNE ALTOFLUX IFM 4080 K EEx EN User Manual
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1 SYSTEM COMPONENTS
1.1 General information
The Altoflux IFM 4080 K/…-EEx magnetic-inductive compact flowmeter is in accordance with
the European Directive 94/9 EC (ATEX 100a) and approved for hazardous classified
locations of Zone 1 and 2 by the KEMA conform to the European Standards of the EN 500xx
series. The IFM 4080 K/…-EEx has the following approval number.
KEMA 01 ATEX 2200 X
The compact flowmeter is available in two types, namely:
•
IFM 4080 K-EEx regular explosion protected version;
•
IFM 4080 K/i-EEx, MODIS version. This type has intrinsically safe signal output circuits,
which are provided by two on the IFC 090i-EEx electronics unit installed MODIS modules.
The regular IFM 4080 K-EEx compact flowmeter is designed for ambient temperatures in the
range of -20
°
C (special -40°C) up to +60°C, the MODIS version type IFM 4080 K/i-EEx is
rated for ambient temperatures from -20°C up to +60°C.
The allowed process liquid temperature is a.o. limited by the combustible atmosphere that
(possibly) surrounds the apparatus, which again is determined by the temperature class of
the atmosphere (first column of the tables). See table 1 and 2 below for details.
For dusts the second column of the two below listed tables is applicable.
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
T85°C
75°C
70°C
70°C
T5
T100°C
95°C
90°C
75°C
T4
T135°C
130°C
115°C
75°C
T3
T180°C
150°C
115°C
75°C
Table 1: Temperature classification DN200 and larger.
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
T85°C
70°C
70°C
70°C
T5
T100°C
85°C
85°C
85°C
T4
T135°C
120°C
120°C
115°C
T3
T180°C
180°C
180°C
115°C
Use heat-resistant cables above
-
-
50°C
Table 2: Temperature classification DN25…150 with PFA liner.
The IFM 4080 K/…-EEx flowmeter consists of the IFC 090/…-EEx signal converter unit,
which is screwed on top of the primary head (i.e. measuring unit). The compact flowmeter is
marked with one of the codes below, depending on the meter size:
•
DN25-150:
II 2GD EEx d [ib] IIC T6…T3 (EEx d terminal compartment) or
II 2GD EEx de [ib] IIC T6…T3 (EEx e terminal compartment).
•
DN200 and up:
II 2GD EEx de [ib] IIC T6…T3 (both EEx d and EEx e
terminal compartment).