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TIDALFLUX 2300 F
TIDALFLUX 2300 F
TIDALFLUX 2300 FTIDALFLUX 2300 F
IECEx / ATEX addendum for
• IFC 300 F / PF (Signal converter)
• TIDALFLUX 2000 (Sensor)
Supplementary instructions
Supplementary instructions
Supplementary instructions Supplementary instructions
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CONTENTS
TIDALFLUX 2300 F
1 Introduction 3
1.1 Safety instructions from the manufacturer ..................................................................... 3
1.1.1 Disclaimer ............................................................................................................................... 3
1.1.2 Product liability and warranty ................................................................................................ 4
1.1.3 Information concerning the documentation........................................................................... 4
1.1.4 Warnings and symbols used................................................................................................... 5
1.1.5 Manufacturer .......................................................................................................................... 5
1.2 Safety instructions for the operator................................................................................. 6
1.3 Approvals.......................................................................................................................... 6
1.4 TIDALFLUX 2000............................................................................................................... 7
1.5 IFC 300 F / PF ................................................................................................................... 8
1.6 Marking labels .................................................................................................................. 9
2 Temperature limits 11
2.1 TIDALFLUX 2000.............................................................................................................11
2.2 IFC 300 F / PF ................................................................................................................. 11
3 Connection diagrams 12
3.1 Signal cable A ................................................................................................................. 12
3.2 Signal cable B ................................................................................................................ 13
3.3 Equipotential bonding..................................................................................................... 14
3.4 Signal cable connections................................................................................................ 14
4 Electrical connections 16
4.1 Installation instructions ................................................................................................. 16
4.2 Connection of TIDALFLUX 2000 ..................................................................................... 17
4.3 Connection of IFC 300 F / PF .......................................................................................... 18
4.4 Input/output connections ............................................................................................... 20
5 Maintenance and service 22
5.1 Maintenance ................................................................................................................... 22
5.2 Before and after opening................................................................................................ 22
5.3 Replacement of mains fuse............................................................................................ 23
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1.1 Safety instructions from the manufacturer
1.1.1 Disclaimer
The manufacturer will not be liable for any damage of any kind by using its product, including,
but not limited to direct, indirect or incidental and consequential damages.
This disclaimer does not apply in case the manufacturer has acted on purpose or with gross
negligence. In the event any applicable law does not allow such limitations on implied warranties
or the exclusion of limitation of certain damages, you may, if such law applies to you, not be
subject to some or all of the above disclaimer, exclusions or limitations.
Any product purchased from the manufacturer is warranted in accordance with the relevant
product documentation and our Terms and Conditions of Sale.
The manufacturer reserves the right to alter the content of its documents, including this
disclaimer in any way, at any time, for any reason, without prior notification, and will not be liable
in any way for possible consequences of such changes.
INTRODUCTION 1
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1 INTRODUCTION
1.1.2 Product liability and warranty
The operator shall bear responsibility for the suitability of the device for the specific purpose.
The manufacturer accepts no liability for the consequences of misuse by the operator. Improper
installation and operation of the devices (systems) will cause the warranty to be void. The
respective "Standard Terms and Conditions" which form the basis for the sales contract shall
also apply.
1.1.3 Information concerning the documentation
To prevent any injury to the user or damage to the device it is essential that you read the
information in this document and observe applicable national standards, safety requirements
and accident prevention regulations.
If this document is not in your native language and if you have any problems understanding the
text, we advise you to contact your local office for assistance. The manufacturer can not accept
responsibility for any damage or injury caused by misunderstanding of the information in this
document.
This document is provided to help you establish operating conditions, which will permit safe and
efficient use of this device. Special considerations and precautions are also described in the
document, which appear in the form of underneath icons.
TIDALFLUX 2300 F
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1.1.4 Warnings and symbols used
Safety warnings are indicated by the following symbols.
DANGER!
This information refers to the immediate danger when working with electricity.
DANGER!
This warning refers to the immediate danger of burns caused by heat or hot surfaces.
DANGER!
This warning refers to the immediate danger when using this device in a hazardous atmosphere.
DANGER!
These warnings must be observed without fail. Even partial disregard of this warning can lead to
serious health problems and even death. There is also the risk of seriously damaging the device
or parts of the operator's plant.
INTRODUCTION 1
WARNING!
Disregarding this safety warning, even if only in part, poses the risk of serious health problems.
There is also the risk of damaging the device or parts of the operator's plant.
CAUTION!
Disregarding these instructions can result in damage to the device or to parts of the operator's
plant.
INFORMATION!
These instructions contain important information for the handling of the device.
LEGAL NOTICE!
This note contains information on statutory directives and standards.
• HANDLING
HANDLING
HANDLINGHANDLING
This symbol designates all instructions for actions to be carried out by the operator in the
specified sequence.
i RESULT
RESULT
RESULTRESULT
This symbol refers to all important consequences of the previous actions.
1.1.5 Manufacturer
The instrument is developed and manufactured by:
KROHNE Altometer
Kerkeplaat 12
3313 LC Dordrecht
The Netherlands
For information, maintenance or service please contact your nearest local KROHNE
representative.
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1 INTRODUCTION
1.2 Safety instructions for the operator
WARNING!
•
Do not change the device. Unauthorised changes 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 (equivalent to HD 384 or IEC 60364, e.g. VDE 0100),
especially the regulations in EN/IEC 60079-14 "Electrical installations in hazardous
locations", equivalent national standard (e.g. DIN VDE 0165 Part 1) or dust hazardous areas
such as EN 61241-14 must be complied with!
•
Installation, establishment, utilisation and maintenance are only allowed to be executed by
personnel with an education in explosion safety!
These additional instructions are an extension to the handbook. All technical information as
described in the handbook is applicable, when not specifically excluded, completed or replaced
by the instructions in these additional instructions.
1.3 Approvals
TIDALFLUX 2300 F
The flowmeter system consists of a flow sensor and a signal converter. The approval numbers
are:
IFC 300 / PF:
• DEKRA 12 ATEX 0235 X
• IECEx DEK. 12.0079 X
TIDALFLUX 2000 :
• DEKRA 12 ATEX 0235 X
• IECEx DEK. 12.0079 X
INFORMATION!
All type examination certificates can be downloaded from the website.
EN/IEC 60 079
EN/IEC number Description
EN 60 079-0: 2009
IEC 60 079-0: 2007
EN 60 079-1: 2007
IEC 60 079-1: 2007
EN 60 079-5: 2007
IEC 60 079-5: 2007
EN 60 079-7: 2007
IEC 60 079-7: 2006
EN 60 079-11: 2012
IEC 60 079-11: 2006
IEC 60 079-11: 2011
EN 60 079-26: 2007
IEC 60 079-26: 2006
General requirements / Protection by enclosures
Flameproof enclosure "d"
Powder filling "q"
Increased safety "e"
Intrinsic safety "i"
Equipment with equipment protection level Ga
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TIDALFLUX 2300 F
1.4 TIDALFLUX 2000
The TIDALFLUX 2000 is certified as group II, category 2G equipment for gas hazardous areas
zone 1 and 2, group IIC, temperature class T6.
The TIDALFLUX 2000 contains following circuits:
Connection box with terminals for:
• Electrodes
Electrodes (terminals 1, 2, 3, 4 = n.c.), in type of protection Intrinsic safety (Ex ia):
ElectrodesElectrodes
= 20 V, Ii = 175 mA, Ci ≈ 0 nF, Li ≈ 0 mH.
U
i
• Field coils
Field coils (terminals 7, 8, 9 = n.c.), in type of protection Increased safety (Ex e):
Field coilsField coils
= 40 V (switched DC voltage, alternately +40 and -40 V maximum),
U
n
I
= 125 mA (injected square wave current).
n
Terminal compartment with terminals for:
• RS 485
RS 485 (terminals C-, D, D-), in type of protection Intrinsic safety (Ex ia):
RS 485RS 485
= 14 V, Io = 189 mA, Po= 0.662 W, Co = 730 nF, Lo = 1 mH.
U
o
• Power supply
Power supply (terminals L, N, PE), in type of protection Increased safety (Ex e):
Power supplyPower supply
= 100...230 VAC or 24 VAC/DC or 12 VDC.
U
n
INTRODUCTION 1
The electrode circuit as intrinsically safe circuit shall, from the safety point of view, be
considered to be connected to ground.
The cable glands for the electrode and the RS 485 circuits are - as intrinsic safe circuits marked with blue O-rings.
Ex marking TIDALFLUX 2000 :
Nominal diameter
Nominal diameter
Nominal diameterNominal diameter
DN200...300 (II 2 G) Ex d e ia q [ia] IIC T6 Gb
DN350...1800 (II 2 G) Ex d e ia [ia] IIC T6 Gb
NOTE: The level electronics CLC-300 which is placed in the IFC 300 housing above the
TIDALFLUX sensor may not be used in another scope than it is intended for.
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1 INTRODUCTION
1.5 IFC 300 F / PF
The IFC 300 F/PF is certified as group II, category 2G equipment, if fitted without Ex ia signal
in/outputs or as a group II, category 2(1)G equipment, if fitted with Ex ia signal inputs/outputs.
It is therefore suitable for installation in gas hazardous areas zone 1 or 2, gas group IIC,
temperature class T6.
Additionally, The Ex ia signal in/outputs of the converter may run or originate from a zone 0 gas
hazardous area.
In the IFC 300 F / PF signal converter the following types of protections are used:
Converter housing, terminal compartment:
• Power supply (terminals L, N, PE or L+, L-), in type of protection Increased safety (Ex e):
Un = 100...230 VAC or 24 VAC/DC or 12...24 VDC.
• Signal I/O (terminals A, A+, A-, B, B-, C, C-, D and D- ), in type of protection Increased safety
(Ex e) or - optional - Intrinsic safety (Ex ia).
For certain versions of the signal converter the terminals A, A+, A-, B, B-, C, C-, D and D- are
additionally in type of protection Intrinsic safety. Consult the table with CG numbers in the
handbook of the IFC 300 for details.
TIDALFLUX 2300 F
Converter housing, electronics compartment: Ex d (Flameproof enclosure)
Console:
• Field current circuit, in type of protection Increased safety (Ex e),
terminals 7 and 8, U < 40 V (switched DC voltage, alternately +40 and -40 V), I = 125 mA
(injected square wave current). The field current source is protected by 2 TR5 fuses, rated
value 160 mA. The maximum prospective short circuit current is restricted to 35 A.
• Electrode terminals, in type of protection Intrinsic safety (Ex ia),
terminals 1, 2, 20, 3, 30. U
lineair characteristics C
• Measuring sensor circuits (RS 485; E,C,D), in type of protection intrinsic safety Ex ia II C with
the following maximum values:
Terminals E, C, D; U
o
= 14 V , Io = 70 mA, Po = 300 mW,
o
= 430 nF, Lo = 2 mH.
o
= 8V, Io= 108 mA, Po= 220 mW, Co= 1000 nF, Lo= 2 mH
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1.6 Marking labels
Figure 1-1: Example of a marking label for the sensor
1 Name and address of the manufacturer
2 Notified body number for ATEX
3 ATEX / IECEx certificate numbers
4 ATEX marking for gas and dust
5 IECEx marking for gas and dust
6 Ex specific remarks / warning
7 Electrical data mains power
8 Manufacturing date and serial number
9 Name of instrument
INTRODUCTION 1
INFORMATION!
Remark about factory sealed enclosure applies to DN200...300.
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1 INTRODUCTION
Figure 1-2: Example of a marking label for the converter
1 Name and address of the manufacturer
2 Notified body number for ATEX
3 ATEX / IECEx certificate numbers
4 ATEX marking for gas and dust
5 IECEx marking for gas and dust
6 Ex specific remarks / warning
7 Electrical data mains power
8 Manufacturing date and serial number
9 Name of instrument
TIDALFLUX 2300 F
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TIDALFLUX 2300 F
The temperature limits apply under the following conditions:
• The instrument is installed and operated in accordance with the installation directions given
in the installation and operating instructions.
• The instrument is not heated up by any additional heat radiation (direct solar radiation, heat
from adjacent plant parts) so causing it to operate above the permissible ambient
temperature range.
• Insulation is not hindering free ventilation of the signal converter housing.
2.1 TIDALFLUX 2000
• The TIDALFLUX 2000 F is suitable for an ambient temperature range of -20…+60°C and a
process temperature of max. 60°C.
2.2 IFC 300 F / PF
The signal converter IFC 300 F / PF is suitable for an ambient temperature range of -20...+60°C
and a process temperature of max. 60°C.
TEMPERATURE LIMITS 2
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3 CONNECTION DIAGRAMS
In the case of field versions, the electrical connection between the sensor TIDALFLUX 2000 and
the signal converter IFC 300 F / PF is established via a signal cable, a field current cable and a
RS 485 cable.
The field current cable is no part of the supply and must be supplied by the user. It must be
according EN/IEC 60079-14 clause 9.3 and 11.3 (Increased safety).
The signal cable is part of the supply.
3.1 Signal cable A
The signal cable A is a double screen shielding cable, according to EN/IEC 60079-14 clause 12.2
(Intrinsic safety).
TIDALFLUX 2300 F
Figure 3-1: Construction of signal cable A
1 Stranded drain wire (1) for the inner shield (10), 1.0 mm
2 Insulated wire (2), 0.5 mm
3 Insulated wire (3), 0.5 mm
4 Outer sheath
5 Insulation layers
6 Stranded drain wire (6) for the outer shield (60)
2
Cu / AWG 20
2
Cu / AWG 20
2
Cu / AWG 17 (not insulated, bare)
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TIDALFLUX 2300 F
3.2 Signal cable B
The signal cable B is a triple screen shielding cable, according to EN/IEC 60079-14 clause 12.2
(intrinsic safety).
Figure 3-2: Construction of signal cable B
1 Stranded drain wire for the inner shield (10), 1.0 mm
2 Insulated wire (2), 0.5 mm
3 Insulated wire (3), 0.5 mm
4 Outer sheath
5 Insulation layers
6 Stranded drain wire (6) for the outer shield (60), 0.5 mm
CONNECTION DIAGRAMS 3
2
2
Cu / AWG 20 with stranded drain wire (20) of shield
2
Cu / AWG 20 with stranded drain wire (30) of shield
Cu / AWG 17 (not insulated, bare)
2
Cu / AWG 20 (not insulated, bare)
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3 CONNECTION DIAGRAMS
3.3 Equipotential bonding
• As the Ex ia electrode circuits of the flow sensors are effectively grounded through the
conductive liquid in the measuring tube, an equipotential bonding system must exist over the
whole area in which the electrode circuits, including their wiring, are installed, conform
EN/IEC 60 079-14 clause 12.2.4.
• The flowmeter TIDALFLUX 2000, the electrode cable and the IFC 300 F / PF signal converter
must all be included in the equipotential bonding system of the hazardous area. If a single
separate conductor is used for equipotential bonding, than this conductor must have a cross
2
section of at least 4 mm
copper.
• The separate equipotential bonding conductor between flow sensor and converter can be left
out, if by other means (e.g. over bonding conductors over the metal piping system) a high
level of assurance that potential equalization exists between flow sensor TIDALFLUX 2000
and converter IFC 300 F / PF is reached.
3.4 Signal cable connections
TIDALFLUX 2300 F
14
Figure 3-3: Connection diagram for signal cable type A (DS)
1 Connection box of converter
2 I/O connection box of sensor
3 Connection box of sensor
4 Connect the outer screens via strain reliefs
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TIDALFLUX 2300 F
Figure 3-4: Connection diagram for signal cable type B (BTS)
1 Connection box of converter
2 I/O connection box of sensor
3 Connection box of sensor
4 Connect the outer screens via strain reliefs
CONNECTION DIAGRAMS 3
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4 ELECTRICAL CONNECTIONS
4.1 Installation instructions
For IFC 300 F / PF and TIDALFLUX 2000 :
When used in a potentially explosive atmosphere, requiring the use of apparatus of equipment
category 2G, certified cable entry devices must be used that are suitable for the application and
correctly installed.
Unused openings must be closed with suitable certified closing elements.
To avoid voltage and current addition, the intrinsically safe circuits must be separated and wired
to EN/IEC 60 079-14.
INFORMATION!
•
The internal field coil fuses of an IFC 300 electronic unit fulfill the above mentioned
requirement with respect to breaking capacity. The prospective short circuit current for the
field coil circuit is limited to 35 A.
•
The clamping range for M20x1.5 cable glands is Ø 6...12 mm, the clamping range for M16x1.5
is Ø 6...10 mm.
Delivery of IFC 300 F / PF:
•
Connection compartment with:
- two M20x1.5 Ex e cable glands for power circuit and signal I/O and one Ex e certified
M20x1.5 stopping plug, or
- three M20X1.5 Ex e cable gland, the 3
•
Connection box with:
- two M20x1.5 Ex e cable glands for electrode and field circuit and one M16x1.5 Ex e cable
gland for RS 485 circuit.
Delivery of TIDALFLUX 2000 :
•
Connection compartment with:
one M20x1.5 Ex e cable gland for power circuit, one M16x1.5 Ex e cable gland for RS 485
circuit and one M20x1.5 Ex e stopping plug.
•
Connection box with:
two M20x1.5 Ex e cable glands for electrode and field circuit.
TIDALFLUX 2300 F
rd
cable gland for field bus connections.
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4.2 Connection of TIDALFLUX 2000
The flow sensor and the signal converter must be incorporated in the equipotential bonding
system of the installation. This can be established internally by connection of the protective
earth (PE) conductor of the mains supply system to the internal PE clamp, or externally, by
connecting a separate equipotential bonding conductor between the two external PE-clamps
(size M5). A separate bonding conductor must have a cross-sectional area of at least 4 mm
The electronics compartment of the TIDALFLUX 2000 is provided in type of protection
“flameproof enclosure” Ex d. The threaded joints of the cover and the housing have a tight fit due
to the requirements of protection “flameproof enclosure” Ex d. Screw the covers on and off with
care and never use excessive force !
The terminal compartment is in type of protection "increased safety" Ex e. Screw the covers on
and off with care and never use excessive force !
Keep the screw-threads free of dirt and well-greased (e.g. with PTFE grease). The grease will
help to prevent the threads from locking due to corrosion.
To unscrew the covers, first release the interlocking devices (one at each cover). Therefore
unscrew the M4 head screw with internal hexagon socket set using a HEX or Allen key no. 2.5
until the interlocking device can be turned. After the covers are screwed back onto the housing,
make sure that the interlocking devices are properly refitted.
ELECTRICAL CONNECTIONS 4
2
.
WARNING!
Allow the electronics to de-energize before opening the electronics compartment of the flow
converter housing. Wait at least 35 minutes for T6 before opening.
Figure 4-1: Electrical connections
Terminals
Terminals Function, electrical data
TerminalsTerminals
L, N
L+, L-
C-, D, D- Connections for RS 485 circuit,
Function, electrical data
Function, electrical dataFunction, electrical data
Connections for mains supply,
Type of protection Ex e,
100...230 VAC, +10%/-15%, 22 VA
12...24 VDC, +30%/-10% (short-time: -25%), 12 W
24 VAC, +10%/-15%, 22 VA
24 VDC, +30%/-25%, 12 W
Um = 253 V
Type of protection Ex ia.
Data for connection on all Ex e terminals:
stripping lenght for wires: 8 mm, torque for screws: 0.6 - 0.8 Nm.
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4.3 Connection of IFC 300 F / PF
The flow sensor and the signal converter must be incorporated in the equipotential bonding
system of the installation. This can be established internally by connection of the protective
earth (PE) conductor of the mains supply system to the internal PE clamp, or externally, by
connecting a separate equipotential bonding conductor between the two external PE-clamps
(size M5). A separate bonding conductor must have a cross-sectional area of at least 4 mm
The electronics compartment of the IFC 300 F / PF is provided in type of protection “flameproof
enclosure” Ex d. The threaded joints of the cover and the housing have a tight fit due to the
requirements of protection “flameproof enclosure” Ex d. Screw the covers on and off with care
and never use excessive force !
The terminal compartment is in type of protection "increased safety" Ex e. Screw the covers on
and off with care and never use excessive force !
Keep the screw-threads free of dirt and well-greased (e.g. with PTFE grease). The grease will
help to prevent the threads from locking due to corrosion.
To unscrew the covers, first release the interlocking devices (one at each cover). Therefore
unscrew the M4 head screw with internal hexagon socket set using a HEX or Allen key no. 2.5
until the interlocking device can be turned. After the covers are screwed back onto the housing,
make sure that the interlocking devices are properly refitted.
TIDALFLUX 2300 F
2
.
WARNING!
Allow the electronics to de-energize before opening the electronics compartment of the flow
converter housing. Wait at least 35 minutes for T6 before opening.
Figure 4-2: Electrical connections
Terminals
Terminals Function, electrical data
TerminalsTerminals
L, N
L+, L-
A, A-, A+
B, BC, CD, D-
Function, electrical data
Function, electrical dataFunction, electrical data
Connections for mains supply,
Type of protection Ex e,
100...230 VAC, +10%/-15%, 22 VA
12...24 VDC, +30%/-10% (short-time: -25%), 12 W
24 VAC, +10%/-15%, 22 VA
24 VDC, +30%/-25%, 12 W
Um = 253 V
Connections for signal I/Os (PELV circuits),
Type of protection Ex e or Ex ia,
dependent on the specific version of the signal
converter ordered. Consult the tables with CG
numbers for details.
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Data for connection on all Ex e terminals:
stripping lenght for wires: 8 mm, torque for screws: 0.6 - 0.8 Nm.
The exact I/O-configuration for circuits A, B, C and D is order-specific and can be determined by
the CG number shown on the converter. Therefore check the data on the back of electronics unit
of the signal converter. The CG number contains 10 characters of which the last three characters
(XYZ) determine the configuration of the I/O circuits:
CGxx
CGxx **** **** **** XXXX YYYY ZZZZ
CGxxCGxx
Pos 1...4 5 6 7 8 9 10
The wiring of instruments has to be in accordance with the requirements as specified in the
relevant national or international standard for electrical installations in hazardous areas, e.g.
EN/IEC 60079-14. Section 9 (wiring systems) of this standard applies to all types of protection.
Section 11 (additional requirements for type of protection “e” - increased safety) and section 12
(additional requirements for type of protection “i” - intrinsic safety) apply to respectively Ex e and
Ex ia performed connection (terminal) compartments.
ELECTRICAL CONNECTIONS 4
determine I/O circuits
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4 ELECTRICAL CONNECTIONS
4.4 Input/output connections
• IFC 300 converters are available in versions with intrinsically safe (Ex i) or non-intrinsically
safe (non-Ex i) inputs/outouts (I/O). Details of both versions (CG. no's and connection of
terminals) are listed in the IFC 300 handbook.
• The versions with non-Ex i I/O are listed in the IFC 300 handbook (title: alterable input/output
versions). The version basic I/O is also with non-Ex i I/O. The electrical data of the I/O circuits
with non-Ex i I/O are:
< 32 VDC and In ≤100 mA.
U
n
• The versions with Ex i inputs/outputs are listed in the IFC 300 handbook (title: Fixed, nonalterable input/output versions), except the IFC 300 version basic I/O, last digits of CG. no.
100. This version is always with non-Ex i I/O.
The electrical data of the versions with Ex i I/O are listed below.
The following signal I/O connections are available as intrinsically safe:
I/O PCB
I/O PCB CG nr.
I/O PCBI/O PCB
CG nr.
CG nr. CG nr.
(XYZ)
(XYZ)
(XYZ)(XYZ)
I/O functions
I/O functions
I/O functionsI/O functions
TIDALFLUX 2300 F
Ex i I/O 300, 310, 320 Current output 4...20 mA with
200, 210, 220,
300, 310, 320
200, 210, 220 Current output 4...20 mA with
Ex i Option 220, 320 Current output 4...20 mA passive
210, 220, 310,
320, D10, D20,
E10, E20
210, 310, D10,
E10
Fieldbus I/O D00, D10, D20 Profibus-PA
E00, E10, E20 Foundation Fieldbus
HART passive (C and C-)
Pulse/status output (D and D-)
HART active (C and C-)
(A and A-)
Pulse/status output / control input
(B and B-)
Current output 4...20 mA active
(A and A-)
(C and C-, D and D-)
(C and C-, D and D-)
Ex ia IIC
Ui = 30 V, Ii = 100 mA, Pi = 1.0 W
Ci = 10 nF, Li = negligibly low
Ex ia IIC
Uo = 21 V, Io = 90 mA, Po = 0.5 W
Lineair characteristics
Co = 90 nF, Lo = 2.0 mH
= 110 nF, Lo = 0.5 mH
C
o
Ex ia IIC
Ui = 30 V, Ii = 100 mA, Pi = 1.0 W
Ci = 10 nF, Li = negligibly low
Ex ia IIC
Uo = 21 V, Io = 90 mA, Po = 0.5 W
Lineair characteristics
Co = 90 nF, Lo = 2.0 mH
= 110 nF, Lo = 0.5 mH
C
o
Ex ia IIC
Ui = 24 V, Ii = 380 mA, Pi = 5.32 W
Ci = 5 nF, Li = 10 μH
Suitable for connection to an
intrinsically safe fieldbus in
accordance with the FISCO model.
20
The I/O circuits titled “Ex i I/O” and “Ex i Option” are always provided with type of protection
Intrinsic Safety (Ex ia). The I/O-circuits “Fieldbus I/O Profibus-PA” as well as “Fieldbus I/O
Foundation Fieldbus” can be provided with type of protection Intrinsic Safety.
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TIDALFLUX 2300 F
Up to a maximum of 4 intrinsically safe (Ex ia) in-/outputs are possible. All intrinsically safe
circuits are galvanically insulated with respect to earth and each other. To avoid summation of
voltages and current, the wiring of these “Ex ia”-circuits must be sufficiently separated, e.g. in
accordance with the requirements of standard EN/IEC 60079-14, clause 12.2.
The “Ex ia” signal in-/outputs may only be connected to other “Ex ia” or “Ex ib” approved devices
(e.g. intrinsically safe isolation amplifiers), even if such devices are installed in a non-hazardous
location ! Connection to non-“Ex i” devices cancels the “Ex ia” properties of the flowmeter.
Terminals L and N (or L+ and L-) for connection of the mains supply are not available with type of
protection “intrinsic safety”. To achieve the necessary separation distances according to EN/IEC
60079-11 between the non-”Ex i” and “Ex i” circuits, the mains terminals are provided with a
semi-circular protection cover with a “snap-in” lock. This cover MUST be closed before
establishing the power supply to the converter.
INFORMATION!
For converters with an
energized state for short periods of time, to access the intrinsically safe terminals for possible
checks. However, the semi-circular insulation cover over the non-intrinsically safe mains supply
terminals L and N (or L+ and L-) MUST be kept closed.
ELECTRICAL CONNECTIONS 4
“
Ex e” terminal compartment, the compartment can be opened in an
INFORMATION!
More detailed information about the connections can be found in the handbook of the converter.
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5 MAINTENANCE AND SERVICE
5.1 Maintenance
The flowmeters are maintenance free with respect to the flowmetering properties. Within the
scope of periodic inspections required for electrical equipment installed in hazardous areas it is
recommended to check the housing for signs of damage or corrosion.
This is especially important for following Ex d electronic compartments:
• In case of replacement of one (or more) of the four M6 hexagon socket head cap screws with
which the converter housing of the IFC 300 F / PF or the TIDALFLUX 2000 is connected to the
wall mounting support or to the connection box of the flow sensor, equivalent types must be
used, that are M6x16 hexagon socket head cap screws to EN ISO 4762, steel quality A2-70 or
A4-70.
• If needed, contact the manufacturer for information on the dimensions of the flameproof
joints.
5.2 Before and after opening
WARNING!
the following instructions must always be carefully followed, if the housing of the signal
converter has to be opened respectively closed again.
TIDALFLUX 2300 F
Before opening:
• Make absolutely sure that there is no explosion hazard!
• Gas-free certificate!
• Make sure that all connecting cables are safely isolated from all external sources!
• Allow the elctronics to de-energize before opening the electronics compartment of the
converter housing. Wait at least 35 minutes for T6.
When the instructions above are strictly followed, the display cover (includes glass window) of
the electronics compartment may be removed. First unscrew the head screw with internal
hexagon socket set (size M4) of the interlocking device by a No. 2.5 Allen key, until the cover can
rotate freely.
After opening:
• Before the cover is screwed back onto the housing, the screw-thread must be clean and wellgreased with an acid and resin-free grease, e.g. PTFE grease.
• Screw the cover as tight as possible into the housing by hand, until it cannot be opened by
hand anymore. Fixate the screw of the interlocking device tight with the No. 2.5 Allen key.
22
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TIDALFLUX 2300 F
5.3 Replacement of mains fuse
WARNING!
Before starting the work refer to Before and after opening on page 22
• Pull the display unit of the mounting frame using the two metal levers left and right and turn
display unit carefully aside.
• Unscrew the two screws size M4 that hold the mounting frame with the electronics unit.
• Carefully pull the mounting frame with electronics unit almost completely out of the housing,
disconnect the long rectangular (14-pole) blue connector at the back-end of the electronics
unit. Now carefully remove the unit from the housing.
• The mains fuse is located in a fuse holder at the back-end of the electronics unit. The
specifications must be as follows:
Fuse type: 5 x 20 mm (H) according to IEC 60127
Fuse type: 5 x 20 mm (H) according to IEC 60127
Fuse type: 5 x 20 mm (H) according to IEC 60127Fuse type: 5 x 20 mm (H) according to IEC 60127
Power supply
Power supply Electrical data
Power supplyPower supply
12...24 VDC 250 V / 2 A
24 VAC/DC 250 V / 2 A
100...230 VAC 250 V / 1.6 A
MAINTENANCE AND SERVICE 5
.
Electrical data
Electrical dataElectrical data
WARNING!
Before reassembling the unit refer to Before and after opening on page 22
• Reassemble the unit in reverse order.
.
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KROHNE product overview
• Electromagnetic flowmeters
• Variable area flowmeters
• Ultrasonic flowmeters
• Mass flowmeters
• Vortex flowmeters
• Flow controllers
• Level meters
• Temperature meters
• Pressure meters
• Analysis products
• Products and systems for the oil & gas industry
• Measuring systems for the marine industry
Head Office KROHNE Messtechnik GmbH
Ludwig-Krohne-Str. 5
47058 Duisburg (Germany)
Tel.:+49 (0)203 301 0
Fax:+49 (0)203 301 10389
info@krohne.de
The current list of all KROHNE contacts and addresses can be found at:
© KROHNE 6/2013 - 7312442200 - AD EX TIDALFLUX 2300 - en - R02 - Subject to change without notice.
www.krohne.com
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