KROHNE IFC-090F User Manual

Variable area flowmeters

Vortex flowmeters

Flow controllers

Electromagnetic flowmeters

Ultrasonic flowmeters

Mass flowmeters

Level measuring instruments

Communications technology

Engineering systems & solutions

Switches, counters, displays and recorders

Heat metering

Pressure and temperature

©KROHNE12 / 2002 7.30923.31.00

Addition to the
installation and operating instructions

IFC 090 F-EEx
IFC 090 F / i-EEx

Signal converters for
electromagnetic flowmeters

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 IFC 090 F - EEx or IFC 090 F / i -EEx signal converter. 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 3

1.2 IFS x000 F-EEx primary head 3

1.3 IFC 090 / … -EEx signal converter 4

1.3.1 Electronic compartment 4

1.3.2 Terminal compartment 4

1.4 Data plates 5

1.5 Electronic unit 5

2 Electrical connection 7

2.1 Equipotential bonding system 7

2.2 Intermediate junction box ZD-EEx 7

2.3 Connecting cables 7

2.4 Connecting diagram 9

2.5 regular IFC 090 - EEx electronic unit 11

2.6 MODIS version IFC 090 I - EEx electronic unit 12

2.7 Connecting diagrams MODIS 13

3 Operation of the signal converter 20
4 Maintenance 20

5 Service 21

5.1 General information for replacements 21

5.2 Replacement of electronic unit 22

5.3 Repalcement of power fuses 24

5.4 Changing power supply voltage 27

6 Ordering information 28
7 Declaration of conformity 29
8 EC-type examination certificates 30

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 2

1 System components

1.1 General information

The ALTOFLUX IFC 090 F/…-EEx signal converter 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 the European Standards of the EN 500xx series. The IFC 090 F/…-EEx has the
following EC-type examination Certificate number:

KEMA 01 ATEX 2234

The signal converter is available in two types, namely:
IFC 090 F-EEx regular explosion protected version;
IFC 090 F/i-EEx, MODIS version. This type has intrinsically safe signal output circuits, which are
pro-vided by two installed MODIS modules (see Sect. 1.5 for details).
The regular IFC 090 F-EEx signal converter is designed for ambient temperatures in the range of
–40°C up to +60°C, the so-called MODIS version type IFC 090 F/i-EEx is rated for ambient
temperatures from -20°C up to +60°C. Both types of signal converters are in remote design, which
means that they are installed on a certain distance of the measuring unit, the IFS x000 F-EEx
series of primary heads. The primary heads are approved according to the European Directive
94/9/EC (ATEX 100a) as well. Due to the installation on a distance from the primary head, the
signal converter is independent of the process liquid temperature and therefore rated for
temperature class T6 and a T85ºC for dusts.

The IFC 090 F / … EEx signal converter is marked with the following code below:
Regular version II 2GD EEx de [ib] IIC T6
MODIS version II 2GD EEx de [ia] [ib] IIC T6

Also see the EC-type Examination Certificate in Sect. 8 of these instructions.

1.2 IFS x000 F-EEx primary head

The IFS x000 F-EEx series primary head is the measuring unit of the IFC 090 F/…-EEx signal
converter and 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
type and size, see the additional installation and operating instructions of the primary head
concerned.

The electrode circuits are wired by separate shielded cables and marked by the sheath color
(white and purple). The intrinsical safe "ib" electrode circuits inside the IFS x000 F-EEx primary
head have the following maximum values (entity parameters):

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

The two field coils inside the primary head are connected in series and provided with the type of
protection increased safety “e” conform to EN 50019 and additionally flameproof enclosure “d” in
accordance with EN 50018 or encapsulation “m” according to EN 50028. The coils have a
maximum resistance below 90 Ω per coil with a wire diameter of at least 0.25 mm and insulation
class H (T

≥ 180°C) according to IEC 85. The field coils are supplied with a square-wave signal

max

with a peak voltage of 60 V maximum and a nominal current of 125 mA. The coil circuit is
protected by two series fuses in the IFC 090 …-EEx electronics unit. The fuses are rated for a
maximum voltage of 250 Vac @ 50-60 Hz, have a breaking capacity of at least 35 A and switching
characteristics fast (F) to time-lag (T).

= 20 V

max

= 170 mA

max

= 0

i

= 0

i

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 3

1.3 IFC 090/…-EEx signal converter

The IFC 090/…-EEx signal converter consists of the pre-certified cylindrical housing of die-casted
aluminum (type AX/P-EEx with KEMA No. Ex-99.E.8128 U). It has two separate compartments,
divided from each other by an integrated wall with casted flameproof terminal feed-through. The
neck at the bottom of the housing that is connected to the wall-mounting bracket with junction box,
contains flameproof cable feed-through type LC-2/EEx, which is approved by KEMA under No.
Ex-01.E.2036 U. The wall-mounting bracket and junction box are also made of die-casted
aluminium. The signal converter housing is on both ends closed by a cylindrical cover with
M115x2-6H6g screw-thread and O-ring sealing. The signal converter has an ingress protection
degree of IP 65 / IP 67 conform to EN 60529.

1.3.1 Electronics compartment

The electronics compartment accommodates the pre-certified IFC 090…-EEx electronics unit with
approval number PTB 98 ATEX 2012 U. The compartment is designed with type of protection
flameproof enclosure "d" according to EN 50018 and closed by a threaded flameproof display
cover. The IFC 090…-EEx unit is inserted into the electronics compartment via two sliding rubbers
that position and fixate it at the front in the housing. Two M4 screws mount the unit and a third M4
screw fixates the copper earth strip at the back-end of the safety barrier printed circuit board. The
three screws are screwed to the integrated aluminium wall in-between terminal and electronics
compartment. The safety barrier provides the electrodes inside the primary head with type of
protection intrinsic safety “ib” according to EN 50020.

See tables on the next pages for the electrical data of the available power supplies (e.g. mains
voltages, etc.). The safety barrier has the following maximum values (entity parameters):

0

0

0

0

= 9 V
= 38 mA
= 4.9 µF
= 23 mH

Maximum output voltage U
Maximum output current I
Maximum allowed external capacitance C
Maximum allowed external inductance L

1.3.2 Terminal compartment

The terminal compartment has seven M4 clamp terminals for connection of the power supply and
signal output circuits (binary and current outputs). Section 2 shows the terminal arrangement for
the regular and MODIS version of the IFC 090/…-EEx signal converter. The terminals are
separated from each other by insulation plates (nine in total, one at each end). The terminal
arrangement of the MODIS version (i.e. IFC 090i-EEx) is shown in Sect. 2.6. Two of the terminals
are used for connection of the non-intrinsically safe power supply and four terminals (marked with
"*") for the intrinsically safe, category "ia" signal outputs (i.e. current, pulse resp. status output) of
the MODIS modules. The non-intrinsically and intrinsically safe terminals are separated from each
other by a metal dividing plate, which is screwed to the remaining (not connected) M4 terminal.
The two non-intrinsically safe power supply terminals are covered by an insulating plate.

The terminal compartment (with standard type of protection increased safety "e") is standard
equipped with two ATEX or E-generation approved "EEx e" cable glands. The terminal
compartment can also be provided as a flameproof enclosure "d", in which case ATEX or E­generation approved "EEx d" cable glands of size Pg13.5, Pg16 or M20x1.5 are factory installed
or must be installed by the customer. For flameproof conduit systems, the terminal compartment
must have type of protection flameproof enclosure "d" according to EN 50018. The conduits must
be sealed by "EEx d" approved (within the ATEX 100a directive) sealing devices (i.e. stopping
box) directly at the conduit entrances of the as flameproof enclosure performed terminal
compartment. All used cable glands, blind plugs and sealing devices for conduit systems must
have an ingress protection degree of IP65 or better.

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 4

1.4 Data plates

IFC 090 F-EEx IFC 090 F / i-EEx

1.5 Electronics unit

The IFC 090 F/…-EEx signal converter can be equipped with the regular IFC 090-EEx electronics
unit or with the IFC 090i-EEx electronics unit with intrinsically safe signal outputs (i.e. MODIS
version). The regular signal converter design has type designation IFC 090 F-EEx and the MODIS
version is designated as IFC 090 F/i-EEx.

Regular IFC 090-EEx electronics unit

The IFC 090-EEx can be equipped with one of the following power supplies, which depends on
the mains supply voltage in area of application.

Electrical data of power supply
Power supply Terminal Description Supply voltage Tolerance Power
AC-versions

AC/DC-version

L
N
PE
1L
0L
FE

Live
Neutral
Protective Earth
Live
Neutral
Functional Earth

115/230 Vac
100/200 Vac

24V ac/dc

-15%/+10% 10 VA

AC: -15%/+10%
DC: -25%/+30%

AC: 10 VA
DC: 8 W

The above listed power supplies are protected by a mains fuse rated according the next table.

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 5

Mains fuses
Power supply Mains fuse
Type Nominal voltage Rating Specifications
AC-versions

DC-version

100/115 Vac 200 mA Switching char.: fast (F) to time-lag (T)
200/230 Vac 125 mA
24 Vac Switching char.: fast (F) to time-lag (T)

1.25 A

24 Vdc

Breaking capacity: ≥ 1500 A @ 250 V

Breaking capacity: ≥ 300 A @ 65 V

The IFC 090-EEx electronics unit is equipped with the following in-/output circuits. Terminals B1,
B⊥ and B2 can be configured as status or pulse outputs or as control inputs via the software. See
the table below for the electrical data of these in-/output circuits.

Electrical data of in-/output circuits
Terminals Description

B1, B⊥, B2

Pulse, status, control in-/outputs 32 V 150 mA

Nominal voltage Maximum current

I+, I Current output 15 V 22 mA

The difference between 115/230 Vac version and the 100/200 Vac version is the number of the
primary windings of the mains transformer.

The terminals indicated as B1, B⊥ and B2 can be configured as pulse in-/outputs by jumpers.
The IFC 090-EEx electronics unit is provided with an extension module that is used for data
communication (e.g. SMART, HART or RS485). In that case, the current output signal (I+, I) is
superposed with a sinusoidal voltage signal of 0.5 V. The extension module does not significantly
influence the nominal voltage Un, the nominal current In or the power dissipation.

Overheating protection

The mains transformer is protected against overheating by a temperature breaker in series with
the primary winding. The temperature breaker is casted within the compound of the transformer
and has an opening temperature of 125 °C (± 5 K).

IFC 090i-EEx unit with MODIS modules

The IFC 090i-EEx electronics unit is equipped with two MODIS-modules. It is equipped with one of
the following power supplies.

Electrical data of IFC 090i-EEx electronics unit
Power supply Terminal Function Electrical data
AC-version

L
N
PE

Live
Neutral
Protective ground

U

= 100…230 Vac –15%/+10%

n

= approx. 15 VA

P

n

Primary fuse: Rated current: 1.6 A
Design conform IEC 127-2
Breaking capacity: 1500 A

AC/DC-version

1L 
0L 
FE

Live
Neutral
Functional ground

U

= 24 V ac / dc

n

AC: -15%/+10% or 20.4…26.4 V ac
DC: -25% / +30% or 18…32 V dc
In = approx. 490…630 mA for AC
approx. 310…550 mA for DC
Pn = approx. 10 W

Primary fuse: Rated current: 1.25 A
Design conform IEC 127-2
Breaking capacity: 1500 A

NOTE:

The mains fuses for both electronics units are listed in Sect. 6 of this manual.

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 6

2 Electrical connection

2.1 Equipotential bonding system

The IFC 090 F/…-EEx signal converter must always be incorporated into the equipotential
bonding system of the hazardous area. This connection can be achieved through the PE/FE
conductor connected to the PE terminal in the terminal compartment (see figure of terminal
arrangement) or through a separate PE conductor, cross sectional area at least 4 mm
to the external PE clamp, placed below the converter housing.

2.2 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 F­EEx 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

≤ 40°C
≤ 50°C
≤ 60°C

≥ DN200 ≤ 40°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

In case that heat-resistant cables are required, install the intermediate junction box ZD-EEx at a
distance of approximately 5 m from the primary head. Connect heat-resistant cables (see cables
D and E in the 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 the IFC 090
F/…-EEx signal converter and intermediate junction box. See connection diagram 2.

The silicone rubber insulated connection cable for the magnetic field coils 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 “e” conform to EN 50019. The intermediate box is incorporated in the
equipotential bonding system of the installation via its external clamp terminal.

2.3 Connecting cables
NOTE:

The following described cables are shown in the next connection diagrams.

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. For the MODIS version with IFC 090i­EEx electronics unit (right detail in connection diagram 1) the signal cable for the intrinsically safe
signal in-/outputs must also conform the requirements as specified in the relevant standard
national code of practice for the installation of electrical apparatus with type of protection Intrinsic
Safety "i".

2

, connected

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 7

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.

The PE terminal must be connected to the protective ground conductor of the mains supply.

Rated voltage

≥ 500 V
Cross-sectional area of core 1.5 to 2.5 mm2
Examples H07...-., H05...-.

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:

Inductance:
Cable length
Single-wire-Ø:
Cross-sectional area of core 0.5 to 1.5 mm

≥ 120°C
≥ 500 V
≤ 200 pF/m
≤ 200 pF/m
≤ 1µH/m
≤ 5 m
≥ 0.1 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 IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 8

2.4 Connection diagrams

Connection diagram 1: Standard cables

SIGNAL IN-/OUTPUTS L N PE 100-230 Vac
L

 L

FE 24 Vac/dc

INTRINSICALLY SAFE
SIGNAL IN-/OUTPUTS L N PE 100-230 Vac
(i.e. MODIS) L

FE 24 Vac/dc

 L

IFC 090-EEx

Signal Converter

B1 B⊥ B2 I+ I L N

BINARY CURRENT MAINS

OUTPUTS OUTPUT SUPPLY

TERMINAL COMPARTMENT
Standard "EEx e" (Optional "EEx d")

ELECTRONICS CO MPAR TMENT (a lways "EEx d" )

electrode circuits field coil circuits

(OPTIONAL)

2

4 mm

≥

Coil

B A

PE
FE

Flameproof (EEx d) cable

feed-through

Field coil wires

x x x x

IFC 090i-EEx

Signal Converter

Flameproof (EEx d)

terminal feed-through

Hazardous locations

of Zone 1 and 2

B A

1L 0L

OPTION: MODIS

PE
FE

Unused terminal

Separation plate

Flow tube

E

EQUIPOTENTI AL BONDING CONDUCTOR

Electrode cables

Coil

E

IFS x000…-EEx

Primary Head

Intrinsically safe electrode circuits

Increased safe field coil circuit

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 9

Connection diagram 2: Use of heat-resistant cables

Signal Converter

IFC 090 F/…-EEx

ELECTRONICS COMPARTMENT (always "EEx d")

Intrinsical safe ("ib") Increased safe ("e")

electrode circuits field coil circuits

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

2x fuse
160mA

Flameproof (EEx d) cable

feed-through 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

EQUIPOTENTIAL BONDING CONDUCTOR

Flow tube

E

Electrode cables - white/pink

Coil

(PTFE insulated shielded copper)

IFS x000 F-EEx

Primary Head type

E

E = electrode

Field c oil wires - green/bl ue

(PTFE insulated copper)

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 10

2.5 Regular IFC 090-EEx electronics unit

The field cables that enter the terminal compartment of the IFC 090-EEx signal converter unit (i.e.
power supply, current and binary outputs) are non-intrinsically safe. To connect external devices
to the signal output terminals, the wiring requirements for the type of protection of the
compartment (standard: increased safety "e", optional: flameproof "d") must be conform to the
international or national standard involved (e.g. EN 60079-14).

Terminal arrangement in terminal compartment

pulse and status outputs
or control inputs

binary

outputs

current

output

100 - 240 V AC / 48 - 63 Hz

24 V AC / DC

PE Protective earth
FE Functional earth

Active current output

≤ 500 Ω

R

i

Passive pulse/status output

I ≤ 150 mA

electronic
or electro­ mechanical
totalizer

I ≤ 150 mA

≤ 32 V DC

U

ext

≤ 24 V AC

e.g.
signal
indicator

Note:

The binary outputs (terminals B1, B⊥ and B2) can only be configured as passive
outputs, the current output (terminals I+ and I) can only be configured as active output.

For power supply versions with the nominal voltage in the range of 100 to 230 Vac the PE
conductor must always be connected to the M5 clamp terminal marked with the safety earth
symbol that is press-fitted in the dividing aluminium wall of the signal converter housing. For the
24 Vac/dc power supply, the PE conductor may be connected, but it not required for the safety of
tthe flowmeter. The terminal arrangement is shown above.

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 11

2.6 MODIS version IFC 090i-EEx electronics unit

The field cables of the non-intrinsically safe power supply and the intrinsically safe, category "ia"
signal outputs enter the terminal compartment of the IFC 090i-EEx signal converter unit via two
separate entrances. To connect external devices to the intrinsically safe signal output terminals,
the wiring requirements for their type of protection as well as of the compartment (standard:
increased safety "e", optional: flameproof enclosure "d") must be conform to the international or
national standard involved (e.g. EN 60079-14).

Terminal arrangement in terminal compartment

NC = not connected

Metal dividing
plate IS / non-IS
terminals

Connecting terminals

for intrinsically safe

signal in-/outputs

*** *

Cable entrance for
intrinsically safe
signal cable

The non-intrinsically safe terminals for connection of the power supply (1L and 0L) must be
connected according to the relevant standard code of practice for electrical apparatus intended for
use in potentially hazardous locations, type of protection Increased Safety "e" or type of protection
Flameproof Enclosure "d", depending on the type of protection of the terminal compartment of the
signal converter housing.

To gain access to the connection terminals of the power supply, the half-circular cover plate of
insulating material must be slightly lifted at one end and then rotated downwards, see the
instruction on the cover plate. After connection of the power supply cable, the half-circular cover
plate must be restored into its original position, so that the minimum clearances and creepage
distances towards the intrinsically safe signal in-/output terminals are maintained.

For details, see diagram on terminal compartment MODIS on next page.

NC 1L 0L 24 Vac/dc
L N 100…240

PE Protective Earth terminal

Connecting
terminals for
non-intrinsically
safe power supply

Cable entrance for
non-intrinsically
safe power supply
cable

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 12

Terminal compartment MODIS version IFC 090i-EEx

Insulating cover plate

Sticker with handling information
for insulating cover plate

Sticker indicating the intrinsically
safe signal in-/output circuits

The PE (or FE) conductor must be connected to the press-fitted M5 clamp terminal marked inside
the terminal compartment. This conductor must be guided through the rectangular opening in the
metal dividing plate that separates the non-intrinsically safe power supply terminals from the
intrinsically safe signal in-/output terminals.

2.7 Connection diagrams MODIS

Sect. 2.4 shows the block diagrams of the EEx electromagnetic compact flowmeter. The power
supply (terminals 1L, 0L) is connected via cable B. The PE terminal must be connected to the
protective earth conductor of the mains supply.

The IFC 090i-EEx electronics unit is provided with intrinsically safe signal in-/output circuits due to
the installed pair of MODIS modules in accordance with the table below.

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 13

Overview of MODIS modules

Module Terminal designation Function / Intrinsically safe maximum data
P-SA

I ⊥, I

Current output (0/4-20 mA), passive

= 30 V, Ii = 250 mA, Pi = 1.0 W

U

i

Ci = 5 nF, Li ≈ 0

FA-ST

B1, B1⊥ or B2, B2 ⊥

Pulse (frequency) output or status in-/output, all passive
The function can be set by software

= 30 V, Ii = 250 mA, Pi = 1.0 W

U

i

Ci = 5 nF, Li ≈ 0

F-PA

D, D ⊥

Fieldbus module, type Profibus system, passive

= 30 V, Ii = 300 mA, Pi = 4.2 W

U

i

Ci = 5 nF, Li ≈ 0

F-FF

DC-I

D, D ⊥

I+, B1+ Intrinsically safe voltage source for the passive module

Fieldbus module, type Fieldbus Foundation, passive

= 30 V, Ii = 300 mA, Pi = 4.2 W

U

i

= 5 nF, Li ≈ 0

C

i

P-SA or FA-ST, so that active operation is possible.
U

= 23.5 V, Io = 98 mA, Po = 0.6 W

o

C

= 132 nF, Lo = 4 mH

o

Note!

When modules P-SA (or FA-ST) and DC-I are connected
in series, the internal capacitance Ci of 5 nF must be
subtracted from the C
list a C

of 127 nF.

o

of 132 nF. So the data plate will

o

Besides the shown intrinsically safe maximum values for voltages and current -which are based
on certain fault conditions as prescribed by the standard EN 50 020 - the nominal values for
current and voltage must also be respected otherwise a proper functioning of the modules is not
guaranteed!

Nominal voltage and current values for the MODIS modules

MODIS module Nominal values for voltage and current
P-SA

(passive current output )

Current: 4 ... 20 mA
Working voltage: 8 ... 30V
Voltage drop : 8V at 4mA

FA-ST

(frequency / pulse / status output
or control input)

Working voltage: 6 ... 30V
Working current: 110 mA
Voltage drop: in ON-state: < 2V at 110 mA
Leakage current in OFF-state: < 900 µA at 30V

Control input:
Input voltage LOW level: < 3V
Input voltage HIGH level: > 7V
Frequency range : 0 .. 12 KHz

DC-I

(active voltage source)

Voltage: 20V
Current: 30 mA
Internal resistance: 260 Ω

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 14

The active module DC-I is needed in the 24 Vac/dc power supply version to form an active current
or pulse output in combination with one of the passive modules P-SA or FA-ST. Due to limited
space it is not available for 100...230 Vac supply versions.

Possible combinations of the installed MODIS modules for the 24 Vac/dc power supply
version of the IFC 090i-EEx

IFC 090i-EEx version Part No. MODIS modules Terminal designation
Ex-i1
Ex-i2
Ex-i3
Ex-i4
Ex-i5
Ex-i6
Ex-i7
Ex-i8

2.11582.01.00 P-SA FA-ST

2.11582.03.00 P-SA F-PA

I ⊥
I ⊥

2.11582.02.00 P-SA DC-I I+

2.11582.05.00 FA-ST F-PA B1

2.11582.06.00 FA-ST DC-I B1+

2.11582.07.00 FA-ST FA-ST B2

2.11582.08.00 P-SA F-FF

I ⊥

2.11582.09.00 FA-ST F-FF B1

I B1
I D

B1⊥

B2⊥
I D

B1⊥

D

B1

D

B1⊥
D ⊥
I
D ⊥
B1
B1 ⊥
D ⊥
D ⊥

Possible combinations of the installed MODIS modules for the 100-230 Vac power supply
version of the IFC 090i-EEx

IFC 090i-EEx version Part No. MODIS modules Terminal designation
Ex-i1
Ex-i2
Ex-i4
Ex-i6
Ex-i7
Ex-i8

2.12253.01.00 P-SA FA-ST

2.12253.02.00 P-SA F-PA

I ⊥
I ⊥

2.12253.03.00 FA-ST F-PA B1

2.12253.04.00 FA-ST FA-ST B2

2.12253.05.00 P-SA F-FF

I ⊥

2.12253.06.00 FA-ST F-FF B1

I B1
I D

D

B1⊥

B1

B2⊥
I D

D

B1⊥

B1⊥
D ⊥
D ⊥
B1 ⊥
D ⊥
D ⊥

Due to mechanical and electrical limitations, only the listed pairs of MODIS modules are possible.
The two modules each use two terminals of the bottom four terminals of the flameproof terminal
feed-through in the dividing wall between the electronics and terminal compartment of the signal
converter housing, except for the combination with module DC-I (only applicable for 24 Vac/dc
versions), where only two of the four terminals are used. Interconnection of the two modules, P­SA with DC-I or FA-ST with DC-I is made internally.

The flameproof terminal feed-through has seven terminals in total, the top two terminals are used
for connection of the power supply, the third one is only used for mounting of a metal dividing
plate with insulating cover plate. The remaining four are used for the intrinsically safe signal in­/output circuits of the installed MODIS modules.
The metal dividing plate and the insulating cover plate warrant the required separation distances
(i.e. clearances, creepage distances and distances through insulation) between the non­intrinsically safe power supply terminals and the intrinsically safe signal in-/output circuits. The
insulating cover plate is provided with a sticker that contains important instructions how to remove
and re-install the cover plate and the conditions under which it should be established (circuits not
live !).

Important !

Carefully follow the instructions on the sticker that is glued to the top of the
insulating cover plate that covers the non-intrinsically safe power supply
terminals !

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 15

For the connection diagrams of the intrinsically safe signal in-/outputs of the installed MODIS
modules in the IFC 090i-EEx electronics unit (see next pages). It has to be noted that the
intrinsically safe signal in-/outputs may only be connected to the following listed apparatus
(registering devices like amp-meters, pulse counters, etc.):
EEx-approved intrinsically safe apparatus;
EEx-approved associated apparatus;
Passive apparatus as defined in your national standard for installation of electrical apparatus in
hazardous locations (e.g. EN 60079-14).

Other types of apparatus may only be connected to the intrinsically safe signal in-/outputs through
EEx-approved safety barriers, isolating interface units and the like. These barriers or units are not
depicted in the connection diagrams for reasons of readability. It is assumed that they are an
integrated part of the registering devices or as separate devices connected in series with them.
The registering devices may only be installed in the hazardous location if they also have a type of
protection for explosion safety according to the European Standards of the EN 500xx series, or if
they are constructed as prescribed in your standard national code of practice.

When the intrinsically safe signal in-/outputs are connected to other intrinsically safe or associated
apparatus, the maximum safety values (i.e. entity parameters) of all intrinsically safe circuits have
to be considered.

Important !

The 100…230 Vac power supply versions of the IFC 090i-EEx signal converter
electronics unit with MODIS modules can only be equipped with passive outputs.
Therefore the connection diagrams with the numbers 2, 4, 5, 7, 9, 11 and 12 are
applicable for the 100…230 Vac power supply versions.

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 16

Connection diagrams 1 to 4 of the intrinsically safe signal in-/outputs

1 Current output I

2 Current output I

active

passive

Version: Ex-i3

I = 4 - 20 mA U
Ri = 350 Ω

I = 4 - 20 mA

Versions: Ex-i1, Ex-i2, Ex-i7

= 8.1 - 30 V

ext

R

≤ (U

i

- 8) / 0.022

ext

IFC 090 i-EEx IFC 090 i-EEx

hazardous area hazardous area

safe area or safe area or
hazardous area ( * )

hazardous area ( * )

3 Pulse output P

Version: Ex-i5

U

= 20 V DC U

int

R

= 260 Ω

int

4 Pulse output P

active

Versions: Ex-i1, Ex-i4, Ex-i6, Ex-i8

= 6 - 30 V DC

ext

I

≤ 110 mA

max

passive

UL = 20×RL / (260+RL)

IFC 090 i-EEx IFC 090 i-EEx

hazardous area hazardous area

safe area or safe area or
hazardous area ( * )

hazardous area ( * )

passive counter passive counter with

external supply

( * ) Important note: Only if the measuring devices are also explosion protected

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 17

Connection diagrams 5 to 8 of the intrinsically safe signal in-/outputs

5 Pulse output P

6 Status output S

passive

active

Versions: Ex-i1, Ex-i4, Ex-i6, Ex-i8

U

= 6 - 30 V U

ext

I

≤ 110 mA

max

Version: Ex-i5

= 20 V DC

int

R

= 260 Ω

int

for active EC UL = 20×RL / (260+RL)

IFC 090 i-EEx IFC 090 i-EEx

hazardous area hazardous area

safe area or safe area or
hazardous area ( * )

hazardous area ( * )

active counter

7 Status output S

Versions: Ex-i1, Ex-i4, Ex-i6, Ex-i8

U

= 6 - 30 V U

ext

I

≤ 110 mA

max

Connection to terminals B1/B1⊥ and/or

8 Control input C

passive

Version: Ex-i5

= 20 V DC

int

I

contact

≤ 6 mA

active

B2/B2⊥

IFC 090 i-EEx IFC 090 i-EEx

hazardous area hazardous area

safe area or safe area or
hazardous area ( * )

hazardous area ( * )

( * ) Important note: Only if the measuring devices are also explosion protected !

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 18

Connection diagrams 9 to 12 of the intrinsically safe signal in-/outputs

9 Control input C

10 HART active

passive

Versions: Ex-i1, Ex-i4, Ex-i6, Ex-i8

U

= 7 - 30 V DC

ext

Connection to terminals B1/B1⊥ and/or

Version: Ex-i3

B2/B2⊥

IFC 090 i-EEx IFC 090 i-EEx

hazardous area hazardous area

safe area or safe area or
hazardous area ( * )

hazardous area ( * )

to HART
communicator

or SMART converter

11 HART passive 12 Fieldbus

Versions: Ex-i1, Ex-i2, Ex-i7

Versions: Ex-i2, Ex-i4, Ex-i7, Ex-i8

IFC 090 i-EEx IFC 090 i-EEx

to next HART device to next Fieldbus
device
or bus terminator
hazardous area

hazardous area
safe area or
hazardous area ( * )

safe area or

hazardous area ( * )

Bus supply device

to HART

to Bus master

communicator
or SMART converter Bus supply device
Bus supply device

( * ) Important note: Only if the measuring devices are also explosion protected !

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 19

3 Operation of the signal converter

The IFC 090 F/…-EEx signal converter unit is equipped with a display unit that contains magnetic
Hall sensors. These HalI sensors enable the settings of the IFC 090…-EEx electronics unit to be
set resp. reset with aid of the with the apparatus delivered bar magnet without the necessity to
open the flameproof converter housing in the hazardous area.

For the program functions and settings of the converter the standard Installation and operating
instructions have to be consulted. It must be noted that - depending on the IFC090 i-EEx version
installed - not all output/input functions are available.

Following menus do not apply for the IFC090 i-EEx versions Ex-i2 and Ex-i3:
(see also Sect. 4.4. "Table of settable functions" in the standard "Installation and operating
instructions" of the IFC090 K/F signal converter)

1.01 Æ VALUE P

1.06 Output/input B1

1.07 Output/input B2

Fct. Text Description and settings

1.00

3.00

3.02 FLOWMETER ...

3.07 HARDWARE

As a consequence, the chapters included in the standard Installations and operating instructions,
giving detailed descriptions of these menus, must be skipped.

1.00 OPERATION Operations menu

1.01 FULL SCALE ...

1.06 Output/Input B1

1.07 Output/Input B2

1.06 PULS B1

1.06

1.07

1.06

1.07

3.00 INSTALL. Installation menu

1.06 PULS B1

1.06 STATUS B1

1.07 STATUS B2

Æ VALUE P

STATUS B1
STATUS B2

CONTROL B1
CONTROL B2

Æ VALUE P

1.06 CONTROL B1

1.07 CONTROL B2

3.02 Æ VALUE P

3.07 HARDWARE

4 Maintenance

The IFC 090 F/…-EEx signal converter is 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 enclosure on signs of damage or corrosion. This concerns the converter
housing.

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 20

5 Service

See Sect. 6 or contact your (local) KROHNE sales representative for the ordering information of
spare parts or replacements of IFC 090…-EEx electronics units and/or power fuses.

5.1 General information for replacements

IMPORTANT !

Before opening

Make absolutely sure there is no explosion hazard!
If necessary provide a ”Gas-free certificate” !
Make sure that all connecting cables are safely isolated from the power supply !

When the instructions above are strictly followed, the cover (with glass window) of the electronics
compartment may be removed. First unscrew the recessed head screw of the interlocking device
by a hollow-head screw wrench size 3, until the cover can rotate freely. Unscrew the cover with
the special plastic wrench (black) that is supplied with the apparatus.

After opening

The copper ground strip at the back of the electronics unit must be securely screwed to the
housing (back-end of electronics compartment) by screw SE (see figure below). The electronics
unit is screwed into the electronics compartment by two screws D. Before screws SE and D can
be accessed, the display unit must be removed via screws A.
Before the cover is screwed back into the housing, the screw-thread must be clean and well­greased with an acid and resin-free grease, e.g. silicone grease.
Screw the cover as tight as possible into the housing by hand, until it cannot be opened by hand
anymore. Screw the recessed head screw of the interlocking device tight.

IFC 090-EEx electronics unit after removal of display unit

Note:

SE

Safe earth
connection

The following instructions must be followed carefully, if the IFC 090/…-EEx
signal converter housing has to be opened respectively closed again!

A

Power fuse in fuse-holder

D

Mains transformer

B

SE

Signal converter housing

C

D

Flat cable of display unit

Power supply
PC-board

A

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 21

5.2 Replacement of electronics unit

Display unit of IFC 090…-EEx

Refer to the standard Installation and
Operating Instructions for detailed

A

information about resetting and
reprogramming the new electronics unit
after replacement. The customer specific
data (like the value of the internal
totalizer) are stored in DATAPROM IC­18, which must be transferred from the
"old" to the "new" electronics unit. See
Sect. 8.7 of the standard Installation and
Operating Instructions for detailed
information.

A



Before commencing work, note the instructions in Sect. 5.1, “Before opening".

Then continue as follows:

1. Remove the display cover of the electronics compartment.

2. Unscrew the two screws A (M3) of the display unit (see figure above) and turn it carefully
aside.

3. Disconnect the 2-pole field circuit connector (item B in figure on last page) and the 3-pole
electrode circuit connector (item C). See figures in Sect. 5.1 and the following.

4. Unscrew the two mounting screws D of the electronics unit and unscrew SE, which fixes
the copper ground strip to the back of the housing. A screwdriver with a long shaft (≥ 200
mm) is most suitable for unscrewing screw SE (e.g. screwdriver type Philips No. 2).

5. Carefully remove the electronics unit of the converter housing (see the remark below).

6. Check if the voltage setting (only applicable for AC power supplies) and power fuse rating
are correct on the new electronics unit. If necessary, change the voltage setting or replace
the power fuse (see Sect. 5.3 and 5.4 of this manual).

7. Carefully insert the electronics unit (keep cables aside, see remark below). Then mount the
unit completely into the housing and fix the screws. First the two screws D, then screw SE
and reconnect the 2-pole field circuit connector B and the 3-pole electrode circuit connector
C to the right counter-plugs on the electronics unit (see figure in Sect. 5.1).

8. Finally screw the display unit back on the frame of the electronics via the two screws A.

9. Screw the cover of the electronics compartment back into the housing.

Note the instructions of Sect. 5.1 ("After opening") during reassembling.

IMPORTANT !

Carefully keep the connecting cables of the field coil and electrode circuits to
the side of the housing, while removing respectively inserting the electronics
unit into the signal converter housing. This is to prevent damaging of the
connecting cables!

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 22

IFC 090-EEx electronics unit (115/230 Vac version)

Copper ground strip

SE

Display unit

(back side)

C: Electrode circuit
connector (3-pole)

B: Field circuit
connector (2-pole)

Flat cable of

display unit

D

D

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 23

5.3 Replacement of power fuse(s)

The power fuse(s) of the different IFC 090…-EEx electronics units (regular or MODIS) have a
different rating and are located on slightly different locations on the power supply printed circuit
board. Only the power fuse on the 100…230 Vac power supply version of the regular IFC 090­EEx electronics unit can be reached without removing the complete unit out of the housing (only
the display unit has to be unscrewed).

Regular IFC 090-EEx with 24 Vac/dc power supply

Note:

1. Remove the cover of the electronics compartment.

2. Unscrew the two screws marked with A of the display unit and turn it carefully aside.

3. Disconnect the 2-pole field circuit connector (item B) as well as the 3-pole electrode circuit

connector (item C). See figures in Sect.5.1 and 5.2.

4. Unscrew the two mounting screws D of the electronics unit and screw SE, which fixes the

copper ground strip to the integrated aluminum dividing wall at the back of the electronics
compartment. Use a screwdriver with a long shaft (≥ 200 mm) like type Philips No. 2 for
screw SE. Then take out the electronics unit, but be careful with the connecting cables, so
that they do not get damaged.

5. The defective power fuse(s) F1 and/or F2 (see following figure) can be replaced now. The

24 Vac/dc power supply uses two sub-miniature fuses type TR 5 that are rated T1.25 A in
accordance with IEC 127-3 publication (part No. 5.09080.00.00).

6. Reassemble in reverse order (points 3 through 1).

IFC 090-EEx electronics unit with 24 Vac/dc power supply

Before commencing work, read the instructions in Sect. 5.1 ("Before opening"). Then
continue as follows:

Note:

Read the instructions of Sect. 5.1 ("After opening") during reassembling.

F1

F2

F1 and F2 fuses of power supply

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 24

p
y

Regular IFC 090-EEx with 100…230 Vac power supply

Note:

Before commencing work, read the instructions in Sect. 5.1 ("Before opening").
Then continue as follows:

1. Remove the cover of the electronics compartment

2. Unscrew the two screws A of the display unit and turn the display unit carefully aside.

3. The fuse-holder, in which the power fuse in accordance with IEC 127-2 size Ø5 x 20 mm is
mounted, is now accessible to replace the defect power fuse F1 by a new fuse with the
same rating. The rating depends on the voltage setting of the power supply unit. The power
supply of 100/115 Vac requires a fuse of T200mA (part No. 5.05678.00.00) and the
200/230 Vac requires a fuse of T125 mA (part No. 5.06627.00.00).

The fuse rating is also shown by the yellow sticker that is glued on the mains transformer,
which can only be seen after the regular IFC 090-EEx electronics unit is completely
removed from the flameproof signal converter housing. See the next figure.

NOTE:

In case of any doubt about the fuse rating or the voltage setting of the unit, remove the
complete unit from the housing as described in Sect. 5.2 and check in the following
figure depicted items. Change when needed !

4. Reassemble the unit in reverse order (points 2 and 1).

Note

Read the instructions of Sect. 5.1 ("After opening") during reassembling.

Power supply version 115/230 Vac

Mains
transformer

Indication of
voltage
selector

Sticker with fuse

Side of dis

la
unit

Power fuse F1
(in fuse holder)

Voltage

Voltage selector

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 25

MODIS version IFC 090i-EEx

Note:

Before commencing work, read the instructions in Sect. 5.1 ("Before opening").
Then continue as follows:

1. Remove the cover of the electronics compartment

2. Unscrew the two screws A of the display unit and turn it carefully aside.

3. Disconnect the 2-pole field circuit connector (item B) and the 3-pole electrode circuit
connector (item C). See figures in Sect. 5.1 and 5.2 for details.

4. Unscrew the two screws D and screw SE by a screwdriver with a long shaft (200 mm).
Take out the electronics unit, but do not damage the connecting cables. See the note
IMPORTANT.

5. The defective power fuse (see following figure) can be replaced now. Use a fuse rated at
T1.25H250V (part No. 5.06232.00.00) for the 24 Vac/dc power supply and a fuse rated at
T1.6H250V (Part No. 5.07823.00.00) for the 100…230 Vac power supply. Note that the
locations are slightly different (the 24 Vac/dc supply version is shown).

6. Reassemble in reverse order (points 4 through 1).

Note:

Read the instructions of Sect. 5.1 ("After opening") during reassembling

.

Important!

Carefully keep the connecting cables of the field coil and electrode circuits to the
side of the housing, while removing or inserting the electronics unit into the signal
converter housing. This is to prevent damaging of the connecting cables!

IFC 090i-EEx electronics unit (24 Vac/dc version is shown)

NOTE:

The power fuse on the 100…230 Vac version is located on a slightly different
position than the fuse of the 24 Vac/dc version ! See location "

Fuse_230V

".

Fuse_230V

PTB 97 ATEX 2265 U
[EEx ia] IIC

PTB 97 ATEX 2265 U

Power fuse (24 Vac/dc power supply)

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 26

5.4 Changing power supply voltage

This only applies to the regular IFC 090-EEx electronics unit with 100-230 Vac power supply.

Note:

Before commencing work, read the instructions in Sect. 5.1 ("Before opening").
Then continue as follows:

1. Remove the cover of the electronics compartment.

2. Unscrew the two screws A of the display unit and turn the display unit carefully aside.

3. Unscrew the two mounting screws D of the electronics unit and screw SE, which fixes the
copper ground strip at the back of the housing. A screwdriver with a long shaft (200 mm)
can best be used to unscrew SE (screwdriver type Philips No. 2).

4. Disconnect the 2-pole and 3-pole connectors and carefully remove the electronics unit.

5. The voltage setting of the power supply can be changed by turning the dummy dual-in-line
block (i.e. voltage selector, see last figure in Sect. 5.3) over 180° in its socket. The position
of the notch on the dummy dual-in-line block indicates the voltage setting. Also see the
sticker that is glued on the mains transformer.

6. Reassemble in reverse order (points 4 through 1).

7. Screw the cover of the electronics compartment back into the housing.

Note:

Note the instructions of Sect. 5.1 ("After opening") during reassembling.

IMPORTANT!

Carefully keep the connecting cables of the field coil and electrode circuits to the
side of the housing, while inserting the electronics unit into respectively removing
it from the signal converter housing. This is to prevent damaging of the
connecting cables!

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 27

6 Ordering information

In case of questions about spare or replacing parts contact your local Krohne representative. The
part numbers of the several parts are listed in the sections below.

6.1 Regular IFC 090-EEx electronics unit

The table below shows the regular (non-MODIS) IFC 090-EEx versions available with the possible
power supply units and the accompanying power fuse(s).

IFC 090-EEx electronics unit Power fuse(s)

Power supply Part No. Symbol Type Rating Part No.

230/240 Vac
115/120 Vac
200 Vac
100 Vac

2.10664.10.00

2.10664.13.00

24 Vac/dc 2.10665.10.00 F1 + F2 TR5, 35A @ 250V 1.25 A T 5.09080.00.00

6.2 MODIS version IFC 090i-EEx electronics unit

The following table gives a summary of the IFC 090i-EEx electronics units available (MODIS
version) and the matching part number. These IFC 090i-EEx electronics units are either provided
with a 24 Vac/dc power supply or a 100…230 Vac power supply.

MODIS modules Part number

Version

Ex-i1
Ex-i2
Ex-i3
Ex-i4
Ex-i5
Ex-i6
Ex-i7
Ex-i8

Position A Position B 24 Vac/dc power

P-SA FA-ST 2.11582.01.00 2.12253.01.00
P-SA F-PA 2.11582.03.00 2.12253.02.00
P-SA DC-I 2.11582.02.00 not available
FA-ST F-PA 2.11582.05.00 2.12253.03.00
FA-ST DC-I 2.11582.06.00 not available
FA-ST FA-ST 2.11582.07.00 2.12253.04.00
P-SA F-FF 2.11582.08.00 2.12253.05.00
FA-ST F-FF 2.11582.09.00 2.12253.06.00

The following table below lists the accompanying power fuse.

24 Vac/dc

100…230 Vac

Notes:

All G-fuses listed comply with IEC 127-2. They are Ø5 x 20 mm in size and blow at
1500 A at 250 V .

Fuse type TR5 is sub-miniature and blows at 35 A at 250 V. It , too, complies with IEC 127-3. The
regular IFC 090-EEx electronics unit with 24 Vac/dc power supply contains two of these fuses in
the primary circuits, labelled as F1 and F2.

F1 125 mA T 5.06627.00.00
F1 200 mA T 5.05678.00.00
F1 125 mA T 5.06627.00.00
F1

G-fuse Ø5x20
1500A @ 250V

200 mA T 5.05678.00.00

100…230 Vac power

supply

supply

Power fuse for IFC 090i-EEx electronics units Power supply version
Type Rating Part number

G-fuse Ø5x20

1.25 A T (T1.25H250V) 5.06232.00.00

1500A @ 250V
G-fuse Ø5x20

1.6 A T (T1.6H250V) 5.07823.00.00

1500A @ 250V

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 28

7 Declarations of conformity

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 29

8 EC-type examination certificates

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 30

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 31

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 32

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 33

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 34

Notice

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx 35

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