KROHNE IFS6000F-EEx User Manual

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© KROHNE 12/2002 7.30924.31.00

Addition to the
installation and operating instructions

ALTOFLUX IFS 4000 F-EEx
PROFIFLUX IFS 5000 F-EEx
VARIFLUX IFS 6000 F-EEx

Electromagnetic primary head
(remote design)

WARNING !

Be sure to follow these instructions !

IMPORTANT !

These additional instructions are an extension to the “Installation and Operating Instructions” and
only apply to the EEx version of the IFS 4000 F, IFS 5000 F and IFS 6000 F electromagnetic
primary heads in remote design. All technical information described in the “Installation and
Operating Instructions” are applicable, when not specifically excluded, completed or replaced by the
instructions in these additional instructions.

No changes regarding safety may be made to the devices. Unauthorized changes
might affect the explosion safety of the devices.

• The prescriptions and regulations as well as the electrical data described in
the EC-type examination certificate must be obeyed.

• Beside the instructions for electrical installations in non-hazardous locations
according to the applicable national standard (e.g. IEC 364), especially the
regulations in EN 60079-14 "Electrical installations in hazardous locations" or
equivalent national standard must be followed.

• Installation, establishment, utilization and maintenance are only allowed to be
executed by personnel with an education in explosion safety !

Contents

1 System components 3

1.1 General information ALTOFLUX IFS 4000 F-EEx 3

1.1.1 Mechanical construction 5

1.1.2 Data plates of ALTOFLUX IFS 4000 F-EEx 5

1.2 General information PROFIFLUX IFS 5000 F-EEx 6

1.2.1 Mechanical construction 7

1.2.2 Data plates of PROFIFLUX IFS 5000 F-EEx 7

1.3 General information VARIFLUX IFS 6000 F-EEx 8

1.3.1 Mechanical construction 9

1.3.2 Data plates of VARIFLUX IFS 6000 F-EEx 9

1.4 Block diagram 10

2 Electrical connection 11

2.1 Primary fuse connection (only for IFS 5000 F-EEx and IFS 6000 F-EEx) 11

2.2 Fuse protection of field coil circuit 11

2.3 Equipotential bonding system 11

2.4 Intermediate junction box ZD-EEx 11

2.5 Connecting cables 12

2.6 Connection diagrams 14

3 Maintenance 16

4 Declaration of conformity 17

5 EC-type examination certificates 18

5.1 ALTOFLUX IFS 4000 F-EEx certificate 18

5.2 PROFIFLUX IFS 5000 F-EEx certificate 24

5.3 VARIFLUX IFS 6000 F-EEx certificate 27

2 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx

1 System components

1.1 General information ALTOFLUX IFS 4000 F-EEx

The ALTOFLUX IFS 4000 F-EEx electromagnetic primary head in remote design (F = field)
complies with the European Directive 94/9 EC (ATEX 100a) and has been approved for hazardous
classified locations of Zone 1 and 2 by the KEMA conform to the European Standards of the
EN 500xx series.

They have the following approval number:

KEMA 01 ATEX 2263 X

The IFS 4000 F-EEx primary head is designed for ambient temperatures in the range of -40°C up to
+60°C inclusive. The IFS 4000 F-EEx primary head in remote design is connected to an associated
signal converter, e.g. IFC 090 F/…-EEx, which is also approved in accordance with the European
Directive 94/9 EC (ATEX 100a). The signal converter is installed on a distance from the IFS 4000 F­EEx primary head and connected via a field coil cable, an electrode cable and a bonding wire.

The IFS 4000 F-EEx primary head in remote design can be installed in environments that are
classified as Zone 1 or Zone 2 hazardous locations. The maximum permissible process liquid
temperature is dependent on the maximum ambient temperature (Ta) that can occur in that
environment too.

For installation of the IFS 4000 F-EEx primary head please conform to the following listed three
temperature classification tables on the next page. The first column lists the temperature classes for
gases and the second one the rating for dusts.

The first table applies to meter sizes larger and equal to DN300, which have type of protection
increased safety "EEx e".

The second table applies to meter sizes DN25 up to DN150 inclusive, which are performed as type
of protection flameproof enclosure "EEx d".

The third table applies to meter sizes DN10-20 (type protection increased safety “EEx e” and
encapsulation “EEx m”) and DN200-300 (increased safety “EEx e” and powder filling “EEx q”).

The following three tables only give the maximum possible temperatures for a lining material inside
the measuring tube of the primary head that consists of PFA. For information on temperature
restrictions of other lining materials, see Standard Installation and Operating Instructions.

ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx 3

Temperature classification of meter sizes larger than DN300

Max. surface

class

T6
T5
T4
T3

temperature

T 85°C 60°C 60°C 60°C
T100°C 80°C 75°C 75°C
T135°C 115°C 115°C 115°C
T180°C 160°C 150°C 140°C

Use heat-resistant cables above -

Maximum process liquid temperature Temperature
Ta ≤ 40 °C Ta ≤ 50 °C Ta ≤ 60 °C

145°C 110°C

Temperature classification of meter sizes DN25…150

Max. surface

class

T6
T5
T4
T3

temperature

T 85°C 70°C 70°C 70°C
T100°C 85°C 85°C 85°C
T135°C 120°C 120°C 120°C
T180°C 180°C 180°C 180°C

Use heat-resistant cables above -

Maximum process liquid temperature Temperature
Ta ≤ 40 °C Ta ≤ 50 °C Ta ≤ 60 °C

155°C 105°C

Temperature classification of meter sizes DN10-20 and DN200-300

Maximum process liquid temperature Temperature
Ta ≤ 40 °C Ta ≤ 50 °C Ta ≤ 60 °C

class

T6
T5
T4
T3

Max. surface
temperature

T 85°C 75°C 70°C 70°C
T100°C 95°C 90°C 75°C
T135°C 130°C 115°C 75°C
T150°C 150°C 115°C 75°C

IMPORTANT !

The maximum process liquid temperature values in the above listed tables only
apply to a lining material of PFA (maximum operating temperature of 200°C). For
other lining materials (e.g. rubber) is a lower process liquid temperature required for
safe operation. See the standard Installation and Operating Instructions for
detailed information about other lining materials.

The IFS 4000 F-EEx is marked with one of the following EEx-codes, which depends on the meter
size range (see table below).

Marking IFS 4000 F-EEx-code
Meter size EEx-code

DN10… DN20 II 2GD EEx me ib IIC T6…T3
DN25… DN150 II 2GD EEx de ib IIC T6…T3
DN200…DN300 II 2GD EEx qe ib IIC T6…T3
larger than DN300 II 2GD EEx e ib IIC T6…T3

Also see the EC-type examination certificate in Section 5 of these additional instructions.

4 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx

1.1.1 Mechanical construction

The IFS 4000 F-EEx primary head is the measuring unit of the flowmetering system (see block
diagram in section 1.4). It contains two field coils and two electrodes in type of protection intrinsic
safety category "ib" according to EN 50020. The type of protection of the field coils depends on the
meter size:

DN10…DN20 Increased safety “e” according to EN 50019 and

encapsulation “m” according to EN 50028
DN25…DN150 Flameproof enclosure “d” according to EN 50018
DN200...DN300 Increased safety “e” according to EN 50019 and

powder filling “q” according to EN 50017
larger than DN300 Increased safety “e” according to EN 50019

The electrode circuits are wired by separate shielded cables and marked by the sheath color (white
and purple). The intrinsical safe "EEx ib" electrode circuits inside the IFS 4000 F-EEx primary head
have the following maximum values (entity parameters):

Maximum input voltage U
Maximum input current I
Maximum internal capacitance C
Maximum internal inductance L

max

max

i

i

= 20 V
= 175 mA
= 0
= 0

The two field coils inside the primary head are connected in series and have a maximum resistance
of 85 Ω per coil with a wire diameter of at least 0.25 mm and insulation class H (T

≥ 180°C)

max

according to IEC 85. The field coils are supplied with a square-wave signal with a voltage of ± 40 V
and a nominal current of 125 mA. The coil circuit is protected by two 160 mA series fuses, which are
installed inside the associated signal converter unit (e.g. IFC 090 F/…-EEx).

NOTE:

In case of meter size DN200-300 the coil housing is factory sealed. Do not open.

1.1.2 Data plates of ALTOFLUX IFS 4000 F-EEx

Data plate 1 Data plate 2

ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx 5

1.2 General information PROFIFLUX IFS 5000 F-EEx

The PROFIFLUX IFS 5000 F-EEx electromagnetic primary head in remote design (F = field)
complies with the European Directive 94/9 EC (ATEX 100a) and has been approved for hazardous
classified locations of Zone 1 and 2 by the KEMA conform to the European Standards of the EN
500xx series.

They have the following approval number:

KEMA 02 ATEX 2024 X

The IFS 5000 F-EEx primary head with meter sizes DN2.5 up to and including DN15 is designed for
ambient temperatures in the range of -40°C to +60°C. The meter sizes DN25 up to DN100 inclusive
are designed for ambient temperatures ranging from -20°C to +60°C.

The IFS 5000 F-EEx primary head in remote design can be installed in environments that are
classified as Zone 1 or Zone 2 hazardous locations. The maximum permissible process liquid
temperature is dependent on the maximum ambient temperature (Ta) that can occur in that
environment too.

For installation of the IFS 5000 F-EEx primary head please conform to the below listed temperature
classification table. The first column lists the temperature classes for gases and the second one the
rating for dusts.

The table below applies for all meter sizes D2.5 up to and including DN100.

Temperature classification
Temperature
class

T6
T5
T4
T3
Use heat-resistant cables above

The IFS 5000 F-EEx primary head in remote design is connected to a signal converter, e.g. IFC 090
F/…-EEx, which is also approved according to the European Directive 94/9 EC (ATEX 100a). The
signal converter is installed on a distance from the IFS 5000 F-EEx primary head and connected via
a field coil cable, an electrode cable and a bonding wire.

The IFS 5000 F-EEx is marked with the following EEx-code:

II 2GD EEx me ib IIC T6…T3

Also see the EC-type examination certificate in Section 5 of these additional instructions.

Max. surface
temperature

T 80°C 65°C 65°C 65°C
T 95°C 85°C 85°C 80°C
T130°C 125°C 125°C 120°C
T180°C 180°C 165°C 145°C

Maximum process liquid temperature
Ta ≤ 40 °C Ta ≤ 50 °C Ta ≤ 60 °C

165°C 130°C 100°C

6 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx

1.2.1 Mechanical construction

The IFS 5000 F-EEx primary head is the measuring unit of the flowmetering system (see block
diagram in section 1.4). It contains two field coils and two electrodes in type of protection intrinsic
safety category "ib" according to EN 50020. The type of protection of the field coils is Encapsulation
"m" according to EN 50028 and Increased Safety "e" according to EN 50019.

The electrode circuits are wired by separate shielded cables and marked by the color of the outer
insulation sheath of the cable (white and purple). The intrinsical safe "EEx ib" electrode circuits inside
the IFS 5000 F-EEx primary head have the following maximum values (entity parameters):

Maximum input voltage U
Maximum input current I
Maximum internal capacitance C
Maximum internal inductance L

max

max

i

i

= 20 V
= 170 mA
= 0
= 0

The two field coils inside the primary head are connected in series and have a maximum resistance
of approximately 60 Ω per coil with a wire diameter of at least 0.25 mm and insulation class H (T

max

≥
180°C) according to IEC 85. The field coils are supplied with a square-wave signal with a voltage of ±
40 V and a nominal current of 125 mA. The coil circuit is protected by two 160 mA series fuses,
which are installed inside the associated signal converter unit (e.g. IFC 090 F/…-EEx).

1.2.2 Data plates of PROFIFLUX IFS 5000 F-EEx

Data plate 1 Data plate 2

ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx 7

1.3 General information VARIFLUX IFS 6000 F-EEx

The VARIFLUX IFS 6000 F-EEx electromagnetic primary head in remote design (F = field) complies
with the European Directive 94/9 EC (ATEX 100a) and has been approved for hazardous classified
locations of Zone 1 and 2 by the KEMA conform to the European Standards of the EN 500xx series.

They have the following approval number:

KEMA 02 ATEX 2038 X

The IFS 6000 F-EEx primary head is designed for ambient temperatures in the range of -40°C up to
+60°C inclusive. The IFS 6000 F-EEx primary head in remote design is connected to a associated
signal converter, e.g. IFC 090 F/…-EEx, which is also approved in accordance with the European
Directive 94/9 EC (ATEX 100a). The signal converter is installed on a distance from the IFS 6000 F­EEx primary head and connected via a field coil cable, an electrode cable and a bonding wire.

The IFS 6000 F-EEx primary head in remote design can be installed in environments that are
classified as Zone 1 or Zone 2 hazardous locations. The maximum permissible process liquid
temperature is dependent on the maximum ambient temperature (Ta) that can occur in that
environment too.

For installation of the IFS 6000 F-EEx primary head please conform to the below listed temperature
classification table. The first column lists the temperature classes for gases and the second one the
rating for dusts.

Temperature classification
Temperature
class

T6
T5
T4
T3
Use heat-resistant cables above -

The IFS 6000 F-EEx is marked with one of the following EEx-codes, which depends on the meter
size range (see table below).

Marking IFS 6000 F-EEx code
Meter size EEx-code

DN2.5…DN15 II 2GD EEx me ib IIC T6…T3
DN25…DN80 II 2GD EEx de ib IIC T6…T3

Also see the EC-type examination certificate in section 5 of these additional instructions.

Max. surface
temperature

T 80°C 70°C 70°C 70°C
T 95°C 85°C 85°C 85°C
T130°C 120°C 120°C 120°C
T190°C 180°C 180°C 165°C

Maximum process liquid temperature
Ta ≤ 40 °C Ta ≤ 50 °C Ta ≤ 60 °C

160°C 115°C

8 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx

1.3.1 Mechanical construction

The IFS 6000 F-EEx primary head is the measuring unit of the flowmetering system (see block
diagram in section 1.4). It contains two field coils and two electrodes in type of protection intrinsic
safety category "ib" according to EN 50020. The type of protection of the field coils depends on the
meter size:

DN2.5…DN15 Encapsulation “m” according to EN 50028 and

Increased safety “e” according to EN 50019

DN25…DN150 Flameproof enclosure “d” according to EN 50018

The electrode circuits are wired by separate shielded cables and marked by the sheath color (white
and purple). The intrinsical safe "EEx ib" electrode circuits inside the IFS 6000 F-EEx primary head
have the following maximum values (entity parameters):

Maximum input voltage U
Maximum input current I
Maximum internal capacitance C
Maximum internal inductance L

max

max

i

i

= 20 V
= 170 mA
= 0
= 0

The two field coils inside the primary head are connected in series and have a maximum resistance
of 85 Ω per coil with a wire diameter of at least 0.25 mm and insulation class H (T

≥ 180°C)

max

according to IEC 85. The field coils are supplied with a square-wave signal with a voltage of ± 40 V
and a nominal current of 125 mA. The coil circuit is protected by two 160 mA series fuses, which are
installed inside the associated signal converter unit (e.g. IFC 090 F/…-EEx).

1.3.2 Data plates of VARIFLUX IFS 6000 F-EEx

Data plate 1 Data plate 2

ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx 9

1.4 Block diagram

Flowmetering systems designed for use in hazardous areas consist of the following components
resp. instruments.

Block diagram of flowmetering system with IFS x000 F- EEx

Hazardous area

Hazardous area

or safe area

Current output

“EEx e”

7

S

E

E

M

"EEx e"

"EEx ib"

8

2,3

1

F

F

Frequency output

“EEx e”

B

1

2

3

Equipotential bonding

The block diagram above shows the principle of a flowmetering system with IFS x000 F-EEx
primary head, that is suitable for hazardous locations. An explanation of the several shown items
follows:

1. IFS x000 F-EEx primary head.

2. ZD-EEx intermediate junction box. This junction box is used for certain process liquid
temperatures that result in higher temperatures at the cable entries resp. branching point of
the connecting cable(s) than that is allowed for normal cables. The intermediate junction
box is used to keep the heat-resistant cabling as short as possible (max. 5 m), because of
the higher costs.

3. Signal converter unit (e.g. IFC 090 F/…-EEx). The signal converter unit contains the
electronics that drives the primary head. It can be located in a hazardous area, in which
case the IFC 090 F/…-EEx with flameproof housing is used. When installed in a safe (non­hazardous) area, alternatively to this version the standard non-EEx version can be used. The
standard version is namely also provided with a safety barrier to drive the "EEx ib"
electrodes of the primary head.

Remaining items:

M
E
S
F
B

Measuring tube
Electrode
Magnetic field coil
Field circuit fuse (installed in associated signal converter unit).
Safety barrier with intrinsically safe "ib" outputs.

10 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx

2 Electrical connection

2.1 Primary fuse connection (only for IFS 5000 F-EEx and IFS 6000 F-EEx)

For all meter sizes (DN2.5 up to and including DN100 in case of IFS 5000 F-EEx, DN2.5 up to and
including DN15 in case of IFS 6000 F-EEx) which also have type of protection Encapsulation "m"
according to EN 50028, the associated signal converter may only be connected to a mains supply
with a prospective short-circuit current of maximum 1500 A for the 100…230 Vac mains supplies
or 300 A for 24 Vac/dc mains supplies.

2.2 Fuse protection of field coil circuit

The field coil circuit is protected against over-current by two fuses of type Wickmann TR5 with a
nominal rating of T160mA. These fuses are soldered into the amplifier printed circuit board of the
electronics unit of the associated signal converter (e.g. IFC 090 F/…-EEx).

2.3 Equipotential bonding system

The IFS x000 F-EEx electromagnetic primary head must always be incorporated into the
equipotential bonding system. Therefore the bonding conductor with a cross-sectional area of at
least 4 mm
to the connecting flange between primary head's housing and junction box.

The U-clamp terminal is made of nickel-plated brass or stainless steel to protect it against corrosion.
Make sure that the core of the bonding wire is properly mounted under the U-clamp and that the
screw is tightly fixed.

2

(i.e. AWG 10) must be connected to the external U-clamp terminal M5 that is mounted

2.4 Intermediate junction box ZD-EEx

For safety reasons, standard cables with a rubber or thermoplastic insulation sheath may only be
used up to a continuous operating temperature of 70°C at the cable entry and 80°C at the branching
point of the connecting cables. In case that the temperature at the above mentioned parts exceed
the maximum values, heat-resistant cables must be installed at the IFS x000 F-EEx primary head in
remote design.
Also see the EC-type examination certificate of the primary head.

The table below summarizes the conditions for use of heat-resistant cables for the IFS x000 F-EEx
primary head.

Use of heat-resistant cables
Primary head Meter size Ambient temperature Process liquid temperature

IFS 4000 F-EEx

IFS 5000 F-EEx DN2.5 - 100

IFS 6000 F-EEx DN2.5 - 80

DN25 - 150

≥ DN200 ≤ 40°C

≤ 40°C
≤ 50°C
≤ 60°C

≤ 50°C
≤ 60°C
≤ 40°C
≤ 50°C
≤ 60°C
≤ 40°C
≤ 50°C
≤ 60°C

not required

≥ 155°C
≥ 105°C

not required

≥ 145°C
≥ 110°C
≥ 165°C
≥ 130°C
≥ 100°C

not required

≥ 160°C
≥ 115°C

ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx 11

In case that heat-resistant cables are required, install the intermediate junction box ZD-EEx at a
distance up to 5 m from the IFS x000 F-EEx primary head. Connect the heat-resistant cables
(cables type D and E in next section) between the primary head's junction box and the intermediate
junction box ZD-EEx. The standard cables (types B and C) can be used between signal converter
unit and intermediate junction box. See the second connection diagram for details (section 2.6).

The silicone rubber insulated connecting cable for the magnetic field coils circuit must be protected
against mechanical damages between the primary head and intermediate junction box by a conduit
system with edge protections. Intermediate box ZD-EEx has terminals with type of protection
increased safety "EEx e" according to EN 50019. The intermediate box is incorporated into the
equipotential bonding system of the installation through its external clamp terminal.

2.5 Connecting cables

Notes:

Cable A

Signal cable for current output and binary outputs (pulse and status output). The cable parameters
must be in accordance with the regulations in the EN 60079-14 "Electrical installations in
hazardous locations" or an equivalent national standard.

Cable B

Power supply cable. The cable parameters must be in accordance with the regulations of the EN
60079-14 "Electrical installations in hazardous locations" or an equivalent national standard.

Rated voltage

Examples H07..-., H05..-.

Cross-sectional area of core

• The below described cables are shown in the connection diagrams. See section 2.6.

• In case that heat-resistant cables have to be used - depends on meter size, process
liquid and ambient temperature - the so-called intermediate junction box type ZD-EEx
must be used. See General information in Section 1 for details.

• The maximum length of the connecting cables between the IFS x000 F-EEx primary
head and the associated signal converter is for safety reasons limited at 50 m. A
shorter cable length can be prescribed for measurement technical reasons, see
therefore the standard Installation and Operating Instructions.

≥ 500 V

1.5 to 2.5 mm2

12 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx

Cable C

Type DS blue

1

Intrinsical safe, with double shielding

2
3
4
5
6
7
8

3 3

7

6

4

1

1 Stranded drain wire,
1st shield, 1.5 mm
2 Insulation
3 Stranded wire, 0.5 mm2
4 Special foil, 1st shield
5 Insulation
6 Mu-metal foil, 2nd shield
7 Stranded drain wire,
2nd shield, 0.5 mm
8 Outer sheath
(flame-retardant)

2

2

Cable constants
(typical values at Ta = 20°C)

C’3/3 60 pF/m (1 kHz)
C’3/4 110 pF/m (1 kHz)
C’4/6 290 pF/m (1 kHz)

L’3/3 0.85 µH/m (1 kHz)
L’3/4 0.60 µH/m (1 kHz)

R’3 37 mΩ/m
R’4+1 12 mΩ/m

Cable D:
Intrinsical safe, with single shielding. Heat-resistant conform to VDE 0165/02.91.

Properties

Continuous service temperature
Test voltage
Capacitance: core/core
core/shield
Inductance: core/core
Cable length
Single-wire-Ø: core/shield

Cross-sectional area of core

≥ 120°C
≥ 500 V
≤ 200 pF/m
≤ 200 pF/m
≤ 1µH/m
≤ 5 m
≥ 0.1 mm

0.5 to 1.5 mm

2

Sheath light-blue or in other way color-coded as

intrinsical safe, flame-retardant.

Example Silicone rubber insulated, shielded control cable.

Cable E:
Non-intrinsical safe, 2-core without shielding. Heat-resistant conform to VDE 0165/02.91.

Properties

Continuous service temperature
Test voltage
Cross-sectional area of core 1.5 mm

≥ 120°C
≥ 500 V

2

Bonding conductor:

Cross-sectional area Max. 4 mm

2

ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx 13

2.6 Connection diagrams

Connection diagram 1: Standard cables

L N PE 100-230 Vac
SIGNAL IN-/OUTPUTS L L FE 24 Vac/dc

B A

B1 B⊥ B2 I+ I L N

BINARY CURREN T MAINS

OUTPUTS OUTPUT SUPPLY

TERMINAL COMPARTMENT
Standard "EEx e" (opti onal "EEx d")

ELECTRONICS COMPARTMENT (always "EEx d")

Intrinsical safe ("ib") Increased safe ("e")
electr ode circuit s field coil ci rcuit s

(No. "3", "2", "1") (No. "7", "8")

(OPTIONAL)

2

4 mm

≥

3 2 1 7 8

3 2 1 7 8

EQUIPOTENTIAL BONDING CONDUCTOR

2x fuse
160mA

Coil

PE
FE

Flam epro of (E Ex d) c able

feed-t hrough LC-2/EEx

B C

Signal Converter

IFC 090 F/…-EEx

Flam epro of (E Ex d)

terminal feed-through

Hazardous locations

of Zone 1 and 2

Flow tube

E

Electrode c ables - whi te/pink

Coil

(PTFE i nsulated shiel ded copper)

IFS x000 F-EEx

E

E = electrode

Field coil wires - gre en/blue

(PTFE insul ated copper)

Primary Head

14 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx

Connection diagram 2: Use of heat-resistant cables

Signal Converter

IFC 090 F/…-EEx

ELECTRONICS COMPARTMENT (always "EEx d")

Intrinsi cal safe ("i b") Inc reased safe (" e")

electrode ci rcuits field coi l circui ts

(No. "3", "2", "1") (No. "7", "8")

2x fuse
160mA

Flameproof (EEx d) c able

feed-thr ough LC-2/EEx

3 2 1 7 8

BC

Hazardous locations

of Zone 1 and 2

3 2 1 7 8

ZD-EEx
intermediate

(OPTIONAL)

2

4 mm

≥

junction box

ED

3 2 1 7 8

Coil

EQUIPOTENTI AL BONDING CONDUCTOR

Flow tube

E

(PTFE insulated s hielded copper)

Coil

IFS x000 F-EEx

Primary Head type

Electrode cabl es - white/pink

ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx 15

E

E = electrode

Field coil wires - green/blue

(PTFE insulat ed copper)

3 Maintenance

The IFS x000 F-EEx primary head is maintenance free with regard to the flowmetering properties.

For IFS 4000 F-EEx it is recommended to check the flameproof enclosure of meter sizes DN25 up
to and including DN150, within the scope of the periodical inspections, which are required for
electrical apparatus that are installed and used in hazardous classified locations.

Regarding the IFS 5000 F-EEx no special inspections are required for this electrical apparatus,
even within the scope of the periodical inspections.

For IFS 6000 F-EEx it is recommended to check the flameproof enclosure of meter sizes DN25 up
to and including DN80, within the scope of the periodical inspections, which are required for
electrical apparatus that are installed and used in hazardous classified locations.

16 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx

4 Declarations of conformity

ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx 17

5 EC-type examination certificates

5.1 ALTOFLUX IFS 4000 F-EEx certificate

18 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx

ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx 19

20 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx

ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx 21

22 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx

ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx 23

5.2 PROFIFLUX IFS 5000 F-EEx certificate

24 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx

ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx 25

26 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx

5.3 VARIFLUX IFS 6000 F-EEx certificate

ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx 27

28 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx

ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx 29

Australia

KROHNE Australia Pty Ltd.
Unit 19 No.9, Hudson Ave.
Castle Hill 2154, NSW
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

Austria

KROHNE Austria Ges.m.b.H.
Modecenterstraße 14
A-1030 Wien
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

Belgium

KROHNE Belgium N.V.
Brusselstraat 320
B-1702 Groot Bijgaarden
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

Brazil

KROHNE Conaut
Controles Automaticos Ltda.
Estrada Das Águas Espraiadas, 230 C.P. 56
06835 - 080 EMBU - SP
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

China

KROHNE Measurement Instruments Co. Ltd.
Room 7E, Yi Dian Mansion
746 Zhao Jia Bang Road
Shanghai 200030
TEL.: [phone]
FAX: [phone]
Cellphone: [phone]
e-mail: [e-mail]

CIS

Kanex KROHNE Engineering AG
Business-Centre Planeta, Office 403
ul. Marxistskaja 3
109147 Moscow/Russia
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

Czech Republic

KROHNE CZ, spol. s r.o.
Sobe˘s˘ická 156
CZ-63800 Brno
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

Algeria
Argentina
Bulgaria
Camaroon
Canada
Chile
Columbia
Croatia
Denmark
Ecuador
Egypt
Finland
French Antilles
Greece
Guinea
Hong Kong
Hungary
Indonesia
Ivory Coast
Iran
Ireland
Israel

Japan
Jordan
Kuwait
Marocco
Mauritius
Mexico
New Zealand
Pakistan
Poland
Portugal
Saudi Arabia
Senegal
Singapore
Slovakia
Slovenia
Sweden
Tai wan
Thailand
Turkey
Tunesia
Venezuela
Yugoslavia

France

KROHNE S.A.S.
Usine des Ors
BP 98
F-26 103 Romans Cedex
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

Germany

KROHNE Messtechnik
GmbH & Co. KG
Ludwig-Krohne-Straße
D-47058 Duisburg
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

India

KROHNE Marshall Ltd.
A-34/35, M.I.D.C.
Industrial Area, H-Block,
Pimpri Poona 411018
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

Italy

KROHNE Italia Srl.
Via V. Monti 75
I-20145 Milano
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

Korea

Hankuk KROHNE
2 F, 599-1
Banghwa-2-Dong
Kangseo-Ku
Seoul
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

Netherlands

KROHNE Altometer
Kerkeplaat 12
NL-3313 LC Dordrecht
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

KROHNE Nederland B.V.
Kerkeplaat 12
NL-3313 LC Dordrecht
TEL.: [phone]
FAX: [phone]
Service Direkt: [phone]
e-mail: [e-mail]

Norway

Krohne Instrumentation A.S.
Ekholtveien 114
NO-1526 Moss
P. O. Box 2178, NO-1521 Moss
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]
Internet: www.krohne.no

South Africa

KROHNE Pty.Ltd.
163 New Road
Halfway House Ext. 13
Midrand
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

Spain

I.I. KROHNE Iberia, S.r.L.
Poligono Industrial Nilo
Calle Brasil, n°. 5
E-28806 Alcalá de Henares-Madrid
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

Switzerland

KROHNE AG
Uferstr. 90
CH-4019 Basel
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

United Kingdom

KROHNE Ltd.
Rutherford Drive
Park Farm Industrial Estate
Wellingborough,
Northants NN8 6AE, UK
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

USA

KROHNE Inc.
7 Dearborn Road
Peabody, MA 01960
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

Overseas Representatives

Other Countries:

KROHNE Messtechnik
GmbH & Co. KG
Ludwig-Krohne-Str.
D-47058 Duisburg
TEL.: [phone]
FAX: [phone]
e-mail: [e-mail]

Subject to change without notice