KROHNE IFC-020 User Manual

Pull-out

Condensed Instructions

KROHNE 12/2002 US size: 7.10003.72.00

©

GR

DIN A4: 7.10003.32.00

Installation and
operating instructions

IFC 020 K
IFC 020 F
IFC 020 E

Signal converters for
electromagnetic flowmeters

Applicable to
Software Versions

● IFC 020 K and

IFC 020 F
No. 3170330200

How to use these Instructions

The flowmeters are supplied ready for operation.

The primary head must be installed in the pipeline as described in the installation
instructions inside the packing of the primary head.

– Installation location and connection to power (Section 1) Pages 1/1-1/8
– Electrical connection of outputs and inputs (Section 2) Pages 2/1-2/4
– Factory settings and start-up (Section 3) Pages 3/1-3/2

Power the flowmeter. THAT’S ALL. The system is operative.

● IFC 020 E

No. 3175870200

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

Installation and operating instructions IFC 020

0/1

Contents

Versions IFC 020 signal converter 0/3
Items included with supply 0/3
Software history 0/3
System description 0/4
Product liability and warranty 0/4
CE / EMC / Standards / Approvals 0/4

Part A System installation and start-up 1/1-3/2

1 Electrical connection: power supply 1/1-1/8

1.1 Important installation notes – PLEASE NOTE ! 1/1

1.1.1 Location 1/1

1.1.2 Only for separate systems/signal converters (F- and E versions) 1/1

1.1.3 Cable entries (K- and F versions) 1/1

1.2 Connection to power 1/2

1.3 Electrical connection of separate primary head (F- and E versions) 1/3-1/6

1.3.1 General information on signal cable A and B as well as field current cable C 1/3

1.3.2 Grounding of primary head 1/3

1.3.3 Stripping (preparation) of signal cable A and B 1/4

1.3.4 Cable length (max. distance between signal converter and primary head) 1/5

1.3.5 Connection diagrams I and II (IFC 020 F signal converter and primary head) 1/6

1.3.6 Connection diagrams III and IV (IFC 020 E signal converter and primary head) 1/7-1/8

2

Electrical connection of outputs and inputs 2/1-2/4

2.1 Current output I 2/1

2.2 Pulse output P and status output S 2/1

2.3 Control input E (applicable with IFC 020 E only) 2/2

2.4 Connection diagrams for outputs and inputs 2/3-2/4

3.

Start-up 3/1-3/2

3.1 Power-on and measurement 3/1

3.2 Factory settings 3/1

3.3 Setting data 3/2

Part B IFC 020

/ D Signal converter 4/1-5/12

4 Operation of the signal converter 4/1-4/12

4.1 Krohne operator control concept 4/1

4.2 Operating and check elements 4/2

4.3 Function of keys 4/3-4/4

4.4 Table of settable functions 4/5-4/9

4.5 Error messages in measuring mode 4/10

4.6 Reset totalizer and cancel error messages, RESET/QUIT menu 4/11

4.7 Examples of setting the signal converter 4/12

5

Description of functions 5/1-5/12

5.1 Full-scale range Q100% 5/1

5.2 Time constant 5/1

5.3 Low-flow cutoff SMU 5/2

5.4 Display 5/2-5/3

5.5 Internal electronic totalizer 5/3

5.6 Current output I 5/4

5.7 Pulse output P 5/5-5/6

5.8 Status output S 5/7

5.9 Language 5/8

5.10 Entry code 5/8

5.11 Primary head 5/9

5.12 User-defined unit 5/10

5.13 F/R mode, forward/reverse flow measurement 5/11

5.14 Characteristic of outputs 5/11

Installation and operating instructions IFC 020

0/2

Part C Special applications, functional checks, service, and order numbers 6/1-9/1

6 Special applications 6/1-6/6

6.1 HART interface 6/1-6/2

6.2 KROHNE

RS 485 interface

6/2

6.3 Stable signal outputs when measuring tube empty 6/3-6/4

6.4 Pulsating flow 6/5

6.5 Rapid changes in flowrate 6/5

6.6 Unsteady display and outputs 6/6

7

Functional checks 7/1-7/8

7.1 Zero check, Fct. 3.03 7/1

7.2 Test of measuring range Q, Fct. 2.01 7/1

7.3 Hardware information and error status, Fct. 2.02 7/2

7.4 Faults and symptoms during start-up and process flow measurement 7/2-7/4

7.5 Test of signal converter using GS 8A simulator (option) 7/5-7/8

8

Service 8/1-8/9

8.1 Illustrations used for service work 8/1-8/2

8.2 Replacement of power fuses 8/3

8.3 Changeover of operating voltage on AC Versions 1 and 2 8/4

8.4 Replacement of electronics unit of signal converter 8/5

8.5 Cleaning the signal converter housing 8/5

8.6 Turning the converter housing of the compact flowmeters 8/6

8.7 IFC 020 K and F: Directions for folding the ribbon cable on the display unit 8/7

8.8 IFC 020 K and F: Illustrations of the PCBs 8/8

8.9 IFC 020 E: Illustrations of the PCBs 8/9

9

Order numbers 9/1

Part D Technical data, measuring principle and block diagram 10/1-12/1

10 Technical data 10/1-10/7

10.1 Full-scale range Q

100%

10/1

10.2 Error limits at reference conditions 10/2

10.3 IFC 020 signal converter 10/3-10/4

10.4 Dimensions and weights 10/5-10/6

10.5 Instrument name plates 10/7

1

1 Measuring principle 11/1

12 Block diagram - signal converter 12/1

Part E Index E1-E2

Printed form to accompany flowmeters returned to Krohne E3

5.15 Applications 5/12

5.16 Setting data 5/12

5.17 Communication interface 5/12

5.18 Control input E (IFC 020 E only) 5/12

Installation and operating instructions IFC 020

0/3

IFC 020 signal converter versions

• All signal converter versions include local display and control elements.
The operating data are factory-set to your ordered specifications

IFC 020 K Compact flowmeter,

Signal converter is directly mounted on primary head.

IFC 020 F Signal converter in field housing,

Electrical connection to primary head via field power and signal cables.

IFC 020 E Signal converter as 19” plug-in unit (in compliance with DIN 41 494, part 5)

Electrical connection to primary head via field power and signal cables.

Items included with supply

• Signal converter in the version as ordered, see above.

• These installation and operating instructions for the signal converter,
including 20-page pull-out condensed instructions for installation, electrical connection,
start-up and operator control of the signal converter.

• 2 plug connectors for connection of power supply and outputs/inputs (K- and F- versions only)

• for separate system version only

, F- and E versions:

signal cable in the version and length as ordered (standard: signal cable A, length 10 m / 30 ft)

Software history

Display & control unit Handheld HHT 020 CONFIG user software
IFC 020 K and F IFC 020 E ImoCom, RS 485, HART

Software Status Software Status Software Status

3170330100 replaces
3170330200 replaces

3170330200 current 3175870200 current from V 3.15 current

Installation and operating instructions IFC 020

0/4

CE / EMC / Standards / Approvals

System description

Electromagnetic flowmeters with the IFC 020 signal converter are precision instruments designed
for linear flow measurement of liquid products.

The process liquids must be electrically conductive: ≥ 5 µS/cm

(for cold demineralized water ≥ 20 µS/cm).

The full-scale range Q

100%

can be set as a function of the meter size:

Q

100%

= 0.0060 - 86 860 m3/hr = 0.03 - 156.672 US Gal/min

This is equivalent to a flow velocity of 0.3 - 12 m/s or 1 - 40 ft/s.

Product liability and warranty

The electromagnetic flowmeters with the IFC 020 signal converter are designed solely for
measuring the volumetric flowrate of electrically conductive, liquid process products.

These flowmeters are not certified for use in hazardous areas. Other flowmeter series are
available for such applications.

Responsibility as to suitability and intended use of these electromagnetic flowmeters rests solely
with the operator.

Improper installation and operation of the flowmeters (systems) may lead to loss of warranty.

In addition, the “General conditions of sale” forming the basis of the purchase contract are
applicable.

If flowmeters need to be returned to Krohne, please note the information given on the last-but-one
page of these Instructions. Krohne regrets that it cannot repair or check your flowmeter(s) unless
accompanied by the completed form sheet.

• Electromagnetic flowmeters with the IFC 020 signal converter meet the protection requirements
of Directive 89/336/EEC in conjunction with EN 50081-1 (1992) and EN 50082-2 (1995),
as well as Directives 73/23/EEC and 93/68/EEC in conjunction with EN 61010-1, and bear the

CE marking.

Installation and operating instructions IFC 020

1/1

Part A System installation and start-up

1 Electrical connection: power supply

1.1 Important installation notes PLEASE NOTE !

1.1.1 Location

• Electrical connection in accordance with VDE 0100 ”Regulations governing heavy-current
installations with line voltages up to 1000 V” or equivalent national regulations.

• Do not cross or loop cables inside the terminal compartment.

• Use separate cable entries (see below) for power supply, field current cables, signal lines,

outputs and inputs.

• Protect flowmeters or switchgear cabinets with built-in devices from direct sunlight.
Fit a sunshade if necessary.

• When installed in switchgear cabinets, signal converters must be adequately cooled,
e.g. use fans or heat exchangers.

• Do not expose signal converters to intense vibration.

1.1.2 Onl

y for separate systems/signal converters (F- and E versions)

• Keep distance between primary head and signal converter as short as possible.

Refer to Sect. 1.3.4 for maximum permissible length of signal and field current cables.

• Use the supplied Krohne signal cable A (Type DS), standard length 10 m (33 ft).

• Always calibrate primary head and signal converter together. Therefore, when installing,

ensure primary constant GK is identical; refer to instrument nameplate for the primary
head. If the GK is not identical, set the signal converter to the GK of the primary head.
Refer also to Section 4.

• Dimensions of signal converter; refer to Section 10.4.

1.1.3 Cable entries (K- and F- versions)

Number of cable entries: 2 for the compact flowmeters

4 for the seperate IFC 020 F signal converter

NOTE: Ensure gaskets are fitted correctly and maintain

the following max. torques!

1 Max. torques for PG 13.5,

1/2“ NPT or 1/2“ PF adapters: 4 Nm / 2.8 ft

x

lbf

2 Max. torques for PG 13.5 only: 3 Nm / 2.1 ft

x

lbf

3 Gasket

A) PG 13.5 cable entries

These cable entries may only be used for flexible electrical cables if the relevant electrical
regulations so allow, e.g. National Electric Code (NEC).
Do not fix rigid metal conduits (IMC) or flexible plastic conduits to the PG 13.5 cable entries, refer
to “Point B/C” below (1/2” NPT or PF adapters).

B) 1/2“ NPT adapters C) 1/2“ PF adapters

For most North American systems the regulations require that electrical conductors be laid in
conduits, particularly where power voltages > 100 V AC are concerned.
In such cases, use the 1/2” NPT or 1/2” PF adapters to which flexible plastic conduits can be
screwed. Do not use rigid metal conduits (IMC)!
Lay conduits such that no moisture can penetrate into the converter housing.
Should there be risk of any condensation water forming, fill the cross-section of the conduit
around the cables at these adapters with a suitable sealing compound.

3

1

2

Installation and operating instructions IFC 020

1/2

Connection to power 1.2

PLEASE NOTE !

• Rated values:

The flowmeter housings protecting the electronic equipment from dust
and moisture must always be kept closed. The selected creepage distances and
clearances have been dimensioned in conformity with VDE 0110 and IEC 664 for
contamination category 2. Supply circuits and output circuits are designed to meet the
standards of overvoltage class II.

• Safet

y isolation: the flowmeters (signal converters) must be provided with an

isolating facility.

1. AC V

ersion 2. AC Version

230/240 V AC (200 - 260 V AC) 200 V AC (170 - 220 V AC)

switch-selectable to switch-selectable to

115/120 V AC (100 - 130 V AC) 100 V AC (85 - 110 V AC)

• Note information on instrument nameplate: supply voltage and frequency

• The PE protective ground conductor for the power supply must be connected to the

separate U-clamp terminal in the terminal compartment of the signal converter.
For exceptions (compact systems), refer to installation instructions for the primary head.

• Connection diagrams for electrical connection between primary head and
signal converter: refer to Section 1.3.5 and 1.3.6.

DC V

ersion (in preparation for IFC 020 E)

24 V DC (18 - 32 V DC)

• Note information on instrument nameplate: supply voltage and frequency.

• For measurement reasons, connect an FE functional ground conductor to the separate

U-clamp terminal in the terminal compartment of the signal converter.

• If connected to a functional extra-low voltage source (24 V AC / DC, 48 V AC),
provide for protective separation (PELV) in conformity with VDE 0100 / VDE 0106 or
IEC 364 / IEC 536, or equivalent national regulations.

• Connection diagrams for power supply and electrical connection between primary
head and signal converter: refer to Section 1.3.6.

Connection to power (K- and F- versions only)

Power fuse F1

(see Sect. 8.2)

AC: 100 – 240 V
DC: 24 V

Power supply

U-clamp terminal

PE protective conductor
FE functional ground conductor

L N

1L = 0L =

for

internal

use only

For electrical connection of the IFC 020 E power supply see Section 1.3.6,
connection diagrams III to VI.

Installation and operating instructions IFC 020

Field current line C (single shielding with IFC 020 F)

Line 2 x 0.75 mm2(18 AWG) Cu, 2 x 1.5 mm2(14 AWG) Cu or 2 x 2.5mm2(12 AWG) Cu
single shielding (Cu = copper cross section)
The cross section depends on the required cable length, see table in Section 1.3.4.

1/3

1.3

Electrical connection of separate primary heads (F- and E- versions)

1.3.1

General remarks on signal lines A and B and field current line C

Proper operation of the equipment is ensured when Krohne signal lines A and B are used with foil
screen and magnetic shield.

• Signal lines must be firmly installed.

• Shields are connected via stranded drain wires.

• Underwater or underground routing is possible.

• Insulating material flame-retardant to IEC 332.1 / VDE 0742.

• Low-halogen, unplasticized signal lines which remain flexible at low temperatures.

Si

gnal line A (type DS) with double shielding

1.3.2 Grounding of primary head

• All flowmeters must be properly grounded.

• The grounding conductor should not transmit any interference voltages.

• Do not ground any other electrical device together with this conductor.

• The primary head is connected to ground by means of an FE functional ground conductor.

• Special information on grounding various primary heads is contained in the separate

installation instructions for primary heads.

• These instructions also contain detailed descriptions on how to use grounding rings and
how to install primary heads in metal or plastic pipes or internally coated pipelines.

1 Stranded drain wire, 1st shield, 1.5 mm2 or AWG 14
2 Insulation
3 Stranded wire 0.5 mm

2

or AWG 20 (3.1 red/3.2 white)
4 Special foil, 1st shield
5 Insulation
6 Mu-metal foil, 2nd shield
7 Stranded drain wire, 2nd shield, 0.5 mm

2

or AWG 20

8 Outer sheath

Signal line B (type BTS) with triple shielding (bootstrap line), for IFC 020 E only

1 Dummy glider wire
2 Insulation (2.1 red/2.2 white)
3 Special foil, 1st shield (3.1/3.2)
4 Insulation (4.1/4.2)
5 Stranded wire 0.5 mm

2

or AWG 20 (5.1 red/5.2 white)

6 Stranded drain wire, 1st shield, 0.5 mm

2

or AWG 20

(6.1/6.2)
7 Special foil, 2nd shield
8 Stranded drain wire, 2nd shield, 1.5 mm

2

or AWG 14

9 Insulation

10 Mu-metal foil, 3rd shield

11 Stranded drain wire, 3rd shield, 0.5 mm

2

or AWG 20

12 Outer sheath

Installation and operating instructions IFC 020

1/4

Stripping (preparation) of signal cable A and B 1.3.3

Please note the different lengths given in the table for signal converter and primary head.

Customer-supplied materials
W

Insulation tubing (PVC), Ø 2.0 - 2.5 mm (dia. 1”)

X Heat-shrinkable tubing or cable sleeve
Y Wire end sleeve to DIN 41 228: E 1.5-8
Z Wire end sleeve to DIN 41 228: E 0.5-8

For cable fixation in signal converter housing IFC 020 F

see illustration in Section 10.4

External shielding of signal cable A (Type DS)
Wrap stranded drain wire (7) around the mu-metal foil (6) and clamp under the shield terminal in
the signal converter terminal box (see also diagram in Sect. 1.3.5).

Signal cable A (type DS) double shielding, for primary head and IFC 020 E

Signal cable A (type DS) double shielding, for IFC 020 F

Signal cable A
bending radius
≥ 50 mm (≥2“)

Signal cable A
bending radius
≥ 50 mm (≥2“)

Signal line B (type BTS) with triple shielding (bootstrap), for IFC 020 E

Signal line B

bending radius
≥ 50 mm (≥2”)

Length

Converter Primary

mm IFC 020 F + E only IFC 020 E

head

(inch) Signalcable A Signalcable B
a 55 (2.17) 70 (2.76) 90 (3.54)
b 10 (0.39) 50 (1.97) 98 (0.31)
c 15 (0.59) 25 (0.98) 25 (0.98)
d 58 (0.31) 78 (0.31) 98 (0.31)
e – 50 (1.97) 70 (2.76)
f – 78 (0.31) 98 (0.31)

Installation and operating instructions IFC 020

Length

Cross section AF (Cu), minimum

0 - 150 m 5 - 500 ft 2 × 0.75 mm

2

Cu / 2 × 18 AWG

150 - 300 m 500 - 1000 ft 2 × 1.50 mm

2

Cu / 2 × 14 AWG

300 - 600 m 1000 - 1900 ft 2 × 2.50 mm

2

Cu / 2 × 12 AWG

Abbreviations and ex

planatory notes

used in the following tables, diagrams and connection diagrams

A Signal cable A (type DS), with double shielding, see diagram A for max. length
B Signal line B (type BTS) with triple shielding, max. length see diagram B (IFC 020 E only)

C Field current cable min. cross-section (AF) and max. length,

(with single shielding for IFC 020 F), see Table

D High-temperature silicone cable, 3 × 1.5 mm

2

(14 AWG) Cu, (with single shielding,

max. length 5 m (16 ft)

E High-temperature silicone cable, 2 × 1.5 mm

2

(14 AWG) Cu, max. length 5 m (16 ft)

AFCross section of field current line C in Cu, see table
L Cable length

κκ

Electrical conductivity of the process liquid

ZD Intermediate connection box required in connection with cables D and E for primary heads

ALTOFLUX IFS 4000 F, PROFIFLUX IFS 5000 F and VARIFLUX IFS 6000 F in cases where
process temperatures exceed 150 °C (302 °F)

Recommended length of signal cable A (Type DS) and B (Type BTS)
(Signal cable B, Type BTS, for IFC 020 E only)

1.3.4 Cable lengths (max. distance between signal converter and primary head)

Field current cable C: (for IFC 020 F single shielding!)

Primary head Meter size Signal cable

DN mm inch AB
AQUAFLUX F 010 - 10003/8 -40 A1 B1

ECOFLUX IFS 1000 F 010 - 153/8 -1/2 A4 B3

025 - 150 1 - 6 A3 B2

ALTOFLUX IFS 2000 F 150 - 250 6 - 10 A1 B1
ALTOFLUX IFS 4000 F 010 - 1503/8 - 6 A2 B2

200 - 1000 8 - 40 A1 B1
PROFIFLUX IFS 5000 F 002.5 - 151/10 -1/2 A4 B3

025 - 100 1 - 4 A2 B2

VARIFLUX IFS 6000 F 002.5 - 151/10 -1/2 A4 B3

025 - 80 1 - 3 A2 B2

ALTOFLUX M 900 010 - 3003/8 -12 A1 B1

1/5

Diagram A Diagram B (for IFC 020 E only)

Installation and operating instructions IFC 020

1/6

Im

portant information on connection diagrams PLEASE NOTE!

• The figures in brackets indicate the stranded drain wires for the shields,

see cross-sectional drawing of signal cable in Section 1.3.1.

• Electrical connection to VDE 0100 ”Regulations governing heavy-current installations with
line voltages up to 1000 V“ or equivalent national regulations.

•PE= protective conductor FE = functional ground conductor

Connection diagrams I and II (IFC 020 F signal converter and primary head) 1.3.5

I II

Process temperature < 150°C (302 °F) Process temperature > 150°C (302 °F)

Primary heads

Primary heads

1 Signal cable A

(Type DS)

2 Shield terminal

for shielded
signal cable

3 Field power cable

4 Shield terminal

for shielded
field power cable

5 Housing wall,

signal converter

6 Cable entries

Connection of shields at the IFC 020 F

4

5

6

3

1

6

2

IFC 020 F IFC 020 F

Installation and operating instructions IFC 020

1/7

III IV

Signal cable A (type DS) Signal cable B (type BTS)

IFC 020 E

IFC 020 E

Process temperature < 150°C (302°F)

Primary head Primary head

Important information on connection diagrams PLEASE NOTE!

• The figures in brackets indicate the stranded drain wires for the shields

(see cross-sectional drawing of signal cable in Section 1.3.1).

• Electrical connection to VDE 0100 "Regulations governing heavy-current installations
with line voltages up to 1000 V" or equivalent national regulations.

• 24 V DC power supply (in preparation): Functional extra-low voltage with protective
separation in conformity with VDE 0100, Part 410 or equivalent national regulations.

•

For IFC 020 E, please note: The internal bridges marked with *

are needed for power supply > 100 V AC only.

•PE= Protective conductor FE = Functional ground conductor

1.3.6 Connection diagrams III to VI (IFC 020 E signal converter and primary head)

24 V DC FE

0L = 1L =

24 V DC FE

0L = 1L =

Installation and operating instructions IFC 020

1/8

V

VI

Signal cable A (type DS) Signal cable B (type BTS)

IFC 020 E IFC 020 E

Process temperature > 150°C (302°F)

Primary head Primary head

24 V DC FE

0L = 1L =

24 V DC FE

0L = 1L =

Installation and operating instructions IFC 020

2/1

• All operating data and functions can be set:

Operation

see Section 4 and 5.

7 Function 1.06 and 1.07

.

• The pulse and status outputs can be operated in the active or passive mode.

Active mode: The current output is the internal voltage source,

connection of electronic totalizers (EC)

Passive mode: External DC or AC voltage source required, connection of electronic (EC)

or electromechanical (EMC) totalizers

• Digital pulse division, interpulse period is non-uniform. Therefore, if frequency meters or

cycle counters are connected, allow for minimum counting interval:

gate time, counter ≤

1000

P

100% [ Hz]

• Connection diagrams see Sect. 2.4: diagrams - pulse output

 Ã

diagrams - status output Ä Å

2.1 Current output I

• The current output is galvanically isolated from all input and output circuits.

• Factory-set data and functions can be noted down in Sect. 5.16.

Please also refer to Sect. 3.2 “Factory settings”.

• Typical current output

• All operating data and functions can be set: Operation see Section 4 and 5.6 Function 1.05.

• The current output can also be used as an internal voltage source for the outputs.

U

int

= 15 V DC I = 23 mA when operated without receiver instruments at the current output

I = 3 mA when operated with receiver instruments at the current output

•

Connection diagrams,

see Sect. 2.4: diagrams À Á Ã Å

• For

connection and operation with HART®-interface see Section 6.1.

I+ approx. 15 V DC positive

voltage of current output

I current sink

I⊥

chassis ground, current output

2 Electrical connection of outputs and inputs

2.2 Pulse output P and status output S

•

The pulse and status outputs are galvanically isolated from the current output and all input circuits.

•

Factory-set data and functions can be noted down in Sect. 5.16.

Please also refer to Sect. 3.2 “Factory settings”.

• Typical pulse and status outputs

S status output

P⊥⊥chassis ground

P pulse output

2/2

Installation and operating instructions IFC 020

Switch open Switch closed

OFF (switched off) without function
ON (e.g. operation indicator) Power supply OFF Power supply ON
F/R INDICATOR (F/R mode) Forward flow Reverse flow
TRIP POINT (Limit switch) Inactive Active
ALL ERRORS (all errors) Errors No errors
FATAL ERRORS (fatal errors only) Errors No errors

• Characteristics of the status outputs

Control input E (with IFC 020 E only) 2.3

• The control inputs are galvanically isolated from the current output and all input circuits.

•

Setting data and functions can be noted down in Section 5.16.

Please also refer to Sect. 3.2 “Factory settings”.

• Typical current input E

• All operating data and functions can be set:

Operation see Section 4 and 5.18 Fct. 1.08.

• The control inputs must be operated in the passive mode.

• Function of the control inputs

OFF switched off
TOTAL.RESET reset totalizer(s)
ERROR.RESET delete error messages
OUTP. HOLD hold value of outputs

Connection diagram, see Sect. 2.4: diagram

Æ

Z10

Z11

Installation and operating instructions IFC 020

2/3

2.4 Input / output connection diagrams

Terminal identification

IFC 020 E

separated, 19” plug-in unit, connection cap X2

IFC 020 F separated, field housing

IFC 020 K compact

For connection and operation of the HART® interface,
see Section 6.1. Load at HART® operation ranges between min.

250 Ω and max. 500 Ω.

E: X2

F

K

I Current output C Control input (IFC 020 E only)
P Pulse output
S Status output RS 485 Interface

1 2

I = 0/4 - 20 mA
U

ext

15...20 V DC 20...32 V DC

R

i

0...500 Ω 250...750 Ω

U

ext

≤ 15 V DC

I = 0/4 - 20 mA
R

i

≤ 500 Ω

Current output

I

active

Current output
I

passive

Active mode

The current output supplies the power for
operation of the outputs and inputs.

Passive mode

External power source required for operation of
the outputs and inputs.

3 4

Pulse output P

passive

for electronic (EC) or
electromechanical (EMC) totalizers

U

ext

≤ 30 V DC/≤ 24 V AC

I

max

≤ 150 mA

(incl. status output S)

U

int

≤ 15 V DC from current output

Operation with current output:

I

max

≤ 3 mA

Operation without current output:

I

max

≤ 23 mA

R ≤

15 V

I

max

Pulse output P

active (and current output I

active

)

for electronic (EC) totalizers

with and without current output I

Totalizer

- electronic (EC)

- electromechanical (EMC)

Milliammeter

0 or 4-20mA and others

Key, N/O contact

External voltage source (U

ext

),

DC or AC voltage,
connection polarity arbitrary

DC voltage,

external power source (U

ext

),

note connection polarity

U

ext

U

ext

I

max

+

2/4

Installation and operating instructions IFC 020

U

ext

≤ 30 V DC/≤ 24 VAC

I

max

≤ 6 mA

87

Control input E

passive

(IFC 020 E only)

RS 485 Interface

For connection and
operation of the

Krohne RS 485
Interface,

see Section 6.2.

6

5

Status output S

passive

U

ext

≤ 30 V DC/≤ 24 V AC

I

max

≤ 150 mA

(incl. pulse output P)

Status output S

active

with and without current output I

U

int

≤ 15 V DC

from current output

I

max

≤ 3 mA

Operation with
current output

I

max

≤ 23 mA

Operation without
current output

Load

Load

Installation and operating instructions IFC 020

3/1

3 Start-up

• Before powering the system, please check that it has been correctly installed according

to Sect. 1 and 2.

• The flowmeter is delivered ready for operational use. All operating data have

been factory set in accordance with your specifications.

Please refer to Sect. 3.2 “factory settings”.

• Power the unit, and the flowmeter will immediately start process flow measurement.

• When powered, the display shows in succession: START UP and READY.

This is followed by display of the current flow rate and/or the current totalizer count
on either a continuous or alternating basis, depending on the setting under Fct. 1.04.

• Refer to Sect. 4 and 5 for operator control of the “display version”.

3.1 Power-on and measurement

3.2 Factory setting

All operating data are factory set according to your order specifications.

If you have not made any particular specifications at the time of ordering, the instruments will be
delivered with the standard parameters and functions listed in the Table below.

To facilitate easy and rapid initial start-up, current output and pulse output are set to process flow
measurement in “2 flow directions”, so that the current flowrate is displayed and the volumetric
flow counted independent of the flow direction. On instruments equipped with a display, measured
values may possibly be shown with a “ – ” sign.

This factory setting for the current and pulse outputs may possibly lead to measuring errors,
particularly in the case of volume flow counting:

for example, if pumps are switched off and a “backflow” occurs which is not within the range of the
low-flow cutoff (SMU), or if separate displays and counts are required for both flow directions.

To avoid faulty measurements, therefore, it may be necessary to change the factory setting of
some or all of the following functions:
– low-flow cutoff SMU, Fct. 1.03, Sect. 5.3
– current output I, Fct. 1.05, Sect. 5.6
– pulse output P, Fct. 1.06, Sect. 5.7
– display (option), Fct. 1.04, Sect. 5.4

Operation see Section 4 and 5.

Standard factory settings

Function Setting

1.01 Full-scale range Q

100%

see nameplate

1.02 Time constant 3 s, for I, S
and display

1.03 Low-flow ON: 1 %

cutoff SMU OFF: 2 %

1.04 Display (option)

flow rate m

3

/hr or US Gal/min

totalizer(s) m3 or US Gal

1.05 Current output I

function 2 directions
range 4 - 20 mA
error message 22 mA

1.06 Pulse output P

function 2 directions
pulse value 1 pulse/s
pulse width 50 ms

1.07 Status output S flow directions

Function Setting

1.08 Control input off

3.01

Language for display only

English

3.02 Flowmeter
diameter see nameplate
flow direction (see arrow

+ direction

on primary head)

}

3.04 Entry code no

3.05 User unit

Liter/hror USMGal/day

3.06 Application steady

3.07 Measuring point Altometer

3.08 Communication interface off

3/2

Installation and operating instructions IFC 020

Here you can note down the settings of the signal converter !

Fct. No. Function Settings

1.01 Full-scale range

1.02 Time constant

1.03 Low-flow cut-off - ON: - OFF:

1.04 Display Flow

Totalizer

Messages

1.05 Current output I Function

Range I

Error

1.06 Pulse output P Function

Selection

Pulse width

Value

1.07 Status output S

1.08 Control input E (IFC 020 E only)

3.01 Language

3.02 Primary head Meter size

GK value

Field frequency

Power frequency

Flow direction

3.04 Entry code required ? - no - yes

→ → → ↵ ↵ ↵ ↑ ↑ ↑

3.05 User-defined unit

3.06 Application Flow is - steady

- pulsating

3.07 Measuring point

3.08 Communication interface

o

Off

o

HART

o

KROHNE RS 485

Address

Baud rate

Setting data 3.3

Installation and operating instructions IFC 020

4/1

4 Operation of the signal converter

Teil B IFC 020 _/ D Signal converter

4.1 Krohne operator control concept

1 3 6. 4 9
m3/hr

Measuring mode

→

CodE 1

Menu column

Function column

Data column

3.00 INSTALL.

2.00 TEST

1.00 OPERATION

3.05 USER UNIT

3.06 APPLICATION

3.07 MES. POINT

3.08 COM

3.04 ENTRY CODE

3.03 ZERO SET

3.02 FLOWMETER

3.01 LANGUAGE

2.02 HARDW. INFO

2.01 TEST Q

1.07 STATUS S

1.08 CONTROL E

1.06 PULS OUTP. P

1.05 CUR. OUTP. I

1.04 DISPLAY

1.03 L.F. CUTOFF

1.02 TIMECONST.

1.01 FULL SCALE

Direction of movement

↓

↑

↑

↓

→

↵

↵

→

see

Sect.

4.4

When this display appears, press following keys:

→ → → ↵ ↵ ↵ ↑ ↑ ↑

Installation and operating instructions IFC 020

4/2

Operating and check elements 4.2

The controls are accessible after unscrewing the 4 screws and
removing the housing cover.

• Display, 1st line

‚ Display, 2nd line

ƒ Display, 3rd line: arrows to identify display

Flowrate current flowrate

Totalizer + totalizer

– totalizer

Σ sum totalizer (+ and –)

Overrange I overranging, current output I

P overranging, pulse output P

„ Keys for operator control of signal converter

… Compass field, signals actuation of a key.

IFC 020

S T O R E Y E S

F c t . 3. 0 0

INSTALL.

F c t . 1. 5

C U R R E N T I

FUNCT. I

F c t . 1. 5

C U R R E N T I

F c t . 1. 4

D I S P L A Y

F c t . 1. 0 0

O P E R AT I O N

Installation and operating instructions IFC 020

4/3

4.3 Function of keys

The cursor (flashing part of display) has a grey background in the following descriptions.

T

o start operator control

PLEASE NOTE: When “YES” is set under Fct. 3.04 ENTRY CODE, “CodE 1 - - - - - - - - -”

appears in the display after pressing the → key.
The 9-keystroke Entry Code 1 must now be entered: → → → ↵ ↵ ↵ ↑ ↑ ↑

(each keystroke acknowledged by “

*

”).

To terminate operator control

Press key ↵ repeatedly until one of the following menus

Fct. 1.00 OPERATION, Fct. 2.00 TEST or Fct. 3.00 INSTALL. is displayed.

↑

Increase number

T

o select a function

Decrease number

↓

→

Switch to function

T

o select a sub function

Return to function

↵

Measuring mode

1 3 . 5 7 1

m 3 / h r

→

Operator control mode

↵

Press key ↵

Store new parameters: acknowledge by

pressing key ↵ . Measuring mode continued

with the new parameters.

New parameters not to be stored:

press key ↑ to display „STORE.NO“.

Measuring mode continued with the „old“

parameters after pressing key ↵ .

1 D I R.

9 3. 3 6 5

U S. G a l / m i n

1 3. 5 7 1

m 3/hr

1 3. 5 7 1

m 3 / h r

3 9 7. 3 5

m 3 / h r

3 9 7. 3 5

m 3 / h r

3 9 7. 4 5

m 3 / h r

3 9 7. 3 5

m 3/hr

3. 7 6 9 9

L i t e r / S e c

1 0. 3

Sec

→

R A N G E I

F c t. 1. 02

T I M E C O N S T.

Installation and operating instructions IFC 020

4/4

↑

increase number

T

o change numbers

decrease number

↓

→

shift to right

T

o shift cursor (flashing position)

shift to left

←

↑

select next text

T

o alter texts (units)

For units, the numerical value is
converted automatically.

select preceding text

↓

→

Change to number setting

T

o transfer from text (unit) to number setting

Return to text setting

←

↵

To transfer to subfunction

Subfunctions do not have a “Fct.No.“ and are identified by a “ → ”.

↵

To revert to function display

Installation and operating instructions IFC 020

4/5

π

4

π

4

Q actual flowrate
Q

100%

100% flow = full scale range

Q

max

= DN2x v

max

/ max. full-scale range (Q

100%

)

at v

max

= 12 m/s / 40 ft/s

Q

min

= DN2x v

min

/ min. full-scale range (Q

100%

)

at v

min

= 0.3 m/s / 1 ft/s

S Status output

SMU Low-flow cutoff for I and P
v Flow velocity
v

max

Max. flow velocity (12 m/s / 40 ft/s) at Q

100%

v

min

Min. flow velocity (0.3 m/s / 1 ft/s) at Q

100%

F/R Forward/Reverse flow at F/R operation

π

4

4.4 Table of settable functions

Abbreviations used

C Control input (IFC 020 E only)
DN Nominal size, meter size
F

max

Highest frequency of pulse output

F

min

Lowest frequency of pulse output

F

M

Conversion factor volume for any unit,
see Fct. “FACT. VOL.”

F

T

Conversion factor time for any unit,
see Fct. 3.05 “FACT. Time”

GK Primary constant
I Current output
I

0%

Current at 0% flow

I

100%

Current at 100% flow

P Pulse output
P

max

= F

max

/ Q

100%

P

min

= F

min

/ Q

100%

π

4

Fct. Text Description and settings

1.00 OPERATION Operations menu

1.01 FULL SCALE Full-scale range for flowrate Q

100%

Select unit

• m3/hr • Liter/Sec • US.Gal/min

• user unit, factory set is “Liter/hr” or “US MGal/day” (see Fct. 3.05)

Press → key to transfer to number setting.

Setting ranges
The ranges are dependent on the meter size (DN) and the flow

velocity (v): Q

min

= DN2x v

minQmax

= DN2x v

max

Nom. dia./meter size vmin = 0,3 m/s (1 ft/s) vmax = 12 m/s (40 ft/s)

•

DN 2.5–1000 /

1

/10”–40”: 0.0053 – 033 900 m3/hr

0.0237 – 152 000 US.Gal/min

Press ↵ key to return to Fct. 1.01 FULL SCALE.

→ VALUE P Pulse value (Fct. 1.06

“VALUE P”

) has been changed.
With the “old” pulse values the output frequency (F)
would have been exceeded or not reached.

P

min

= F

min

/ Q

100% Pmax

= F

max

/ Q

100%

Check new values!

1.02 TIMECONST. Time constant

Select:

• ALL (applies to display and all outputs)

• ONLY I+S (only display, current and status outputs)

Press ↵ key to transfer to number setting.

Range: • 0.2 – 99.9 Sec

Press ↵ key to return to Fct. 1.02 TIMECONST.

1.03 L.F.CUTOFF Low-flow cutoff (SMU)

• OFF (fixed values: ON = 0.1% / OFF = 0.2%

at 100Hz and 1000Hz, see Fct. 106, 1% resp. 2%)

• PERCENT (variable values) ON OFF

1 – 19% 2 – 20%

Press → key to transfer to number setting.

Note:

Cutoff “off” value must be greater than cutoff “on” value.

Press ↵ key to return to Fct. 1.03 L.F. CUTOFF.

Installation and operating instructions IFC 020

4/6

Fct. Text Description and settings

1.04 DISPLAY Display functions

→

DISP.FLOW Select flow display

• NO DISP. •

user unit, factory set is “Liter/hr” or “US MGal/day (see Fct. 3.05)

• m3/hr • PERCENT

• Liter/Sec • BARGRAPH (value and bargraph display in %)

• US.Gal/min

Press ↵ key to transfer to subfunction “DISP. TOTAL.”.

→

DISP.TOTAL. Select totalizer display

• NO DISP. (totalizer switched on but not displayed)

• OFF (totalizer switched off)

• +TOTAL • −TOTAL • ±TOTAL • SUM (Σ)

• ALL (single totalizer or all)

Press ↵ key to transfer to display unit

• m3 • Liter • US.Gal

• user unit, factory set is “Liter” or “US MGal” (see Fct. 3.05).

Press → key to transfer to format setting.

Format settin

g

• Auto (exponent notation)

• # . ####### • ##### . ###

• ## . ###### • ###### . ##

• ### . ##### • ####### . #

• #### . #### • ########

Press ↵ key to transfer to subfunction “DISP.MSG”.

→

DISP.MSG. Additional messages required in measuring mode?

• NO • YES (cyclic change with displays of measured values)

Press ↵ key to return to Fct. 1.04 DISPLAY.

1.05 CURRENT I Current output I

→

FUNCT. I Select function for current output I

• OFF (switched off)

• 1 DIR. (1 flow direction)

• 2 DIR. (forward/reverse flow, F/R flow measurement)

Press key ↵ , transfer to subfunction “RANGE I”;

→

RANGE I Select measuring range

• 0 - 20 mA • 4 - 20 mA (fixed ranges)

• mA (user-defined range) I

0%

- I

100%

(Value I0%< I

100%

!) 0 - 16 mA 4 - 20 mA

To transfer to number setting, press key →!

Press key ↵ to transfer to subfunction “I ERROR“.

→

I ERROR Select error value

• 22 mA • 0.0 to I0%mA (variable, see above if I0%> 1 mA)

To transfer to number setting, press key →!

Press key ↵ to revert to Fct. 1.05 CURRENT. I.

Fct. Text Description and settings

1.06 PULS B1 Pulse output P

→

FUNCT. P Select function for pulse output P

• OFF (switched off)

• 1 DIR. (1 flow direction)

• 2 DIR. (forward/reverse flow, F/R flow measurement)

Press key ↵ to transfer to subfunction “SELECT P”.

→

SELECT P Select pulse type

• 100 HZ • PULSE/VOL. (pulses per unit volume, flowrate)

• 1000 HZ • PULSE/TIME (pulses per unit time for 100% flowrate)

Press key ↵ to transfer to subfunction “PULSWIDTH”.
With selection 100 HZ and 1000 HZ,
return to Fct.1.06 PULSOUTPUT P (pulswidth 50% cyclic).

→

PULSWIDTH Select pulse width

• 50 msec • 100 msec • 200 msec • 500 msec • 1 sec

Press key ↵ to transfer to subfunction “VALUE P”.

→

VALUE P Set pulse value per unit volume (appears only when

“PULSE/VOL.” set under “SELECT P” above)

• xxxx PulS/m3 • xxxx PulS/Liter • xxxx PulS/US.Gal

• xxxx PulS/

user-defined unit, factory-set is “Liter” or “US M.Gal” (see Fct. 3.05)
Setting range “xxxx” is dependent on the pulse width and the
full-scale range: P

min

= F

min

/ Q

100%Pmax

= F

max

/ Q

100%

Press key ↵to return to Fct. 1.06

“

PULS. OUTPUT P”.

→

VALUE P Set pulse value per unit time (appears only when “PULSE/TIME”

set under “SELECT P” above)

• xxxx PulSe/Sec (=Hz) • xxxx PulSe/min • xxxx PulSe/hr

• xxxx PulSe/user-defined unit, factory-set is “hr” (see Fct. 3.05)

Setting range “xxxx” is dependent on the pulse width, see above
Press key ↵to return to Fct. 1.06

“

PULS. OUTPUT P””.

1.07 STATUS. S Status output S

• ALL ERROR • FATAL ERROR • OFF • ON

• F/R INDIC. (F/R indication for forward/reverse measurement)

• TRIP. POINT Settin

g range: 002 - 115 PERCENT

Press ↵ key to transfer to number setting
Press ↵ key to return to Fct. 1.07 “STATUS. S“.

1.08 CONTROL E Control input E (IFC 020 E only)
(IFC 020 E only) • OFF (switched off)

• OUTP. ZERO (set outputs to “min.values”)

• TOTAL. RESET (reset totalizers)

• ERROR. RESET(delete error messages)

Press ↵ key to return Fct. 1.08 “Control E”.

Installation and operating instructions IFC 020

Fct. Text Description and settings

2.00 TEST Testmenu

2.01 TEST Q Test measuring range Q

Precautionary query

• SURE NO Press ↵ key to return to Fct. 2.01 “TEST Q”.

• SURE YES Press ↵ key, then use ↑ or ↓ key to

select value: -110 / -100 / -50 / -10 / 0 / +10 / +50 / +100 / +110 PCT.

of set full-scale range Q

100%

.

Displayed value present at outputs I and P.

Press ↵ key to return to Fct. 2.01 “TEST Q”.

2.02 HARDW. INFO Hardware information and error status

Before consulting factory, please note down all 6 codes.

→ MODUL ADC X . X X X X X . X X

Y Y Y Y Y Y Y Y Y Y Press ↵ key to transfer to “MODUL IO“.

→ MODUL IO X . X X X X X . X X

Y Y Y Y Y Y Y Y Y Y Press ↵ key to transfer to “MODUL DISP.“.

→ MODUL DISP. X . X X X X X . X X Press ↵ key to transfer to “MODUL RS

Y Y Y Y Y Y Y Y Y Y

→ MODUL RS X . X X X X X . X X Press ↵ key to return to Fct. 2.02

Y Y Y Y Y Y Y Y Y Y “HARDW. INFO“.

4/7

4/8

Installation and operating instructions IFC 020

3.03 ZERO SET Zero calibration

Note: Carry out only at “0” flow and with completely filled

measuring tube!

Precautionar

y query

• CALIB. NO Press ↵ key to return to Fct. 3.03 “ZERO SET”.

• CALIB. YES Press ↵ key to start calibration.

Duration approx. 15-90 seconds, (depends on frequency
of magnetic field) current flowrate

displayed in the selected

unit (see Fct. 1.04 “DISP. FLOW”).

A “WARNING” sign appears when flowrate “> 0“;
acknowledge by pressing ↵ key.

• STORE NO (do not store new zero value)

• STORE YES (store new zero value)

Press ↵ key to return to Fct. 3.03 “ZERO SET”.

3.04 ENTRY CODE Entry code required to enter setting mode?

• NO (= entry with → only)

• YES (= entry with → and Code 1: → → → ↵ ↵ ↵ ↑ ↑ ↑ )

Press ↵ to return to Fct. 3.04 “ENTRY CODE”.

Fct. Text Description and settings

3.00 INSTALL. Installation menu

3.01 LANGUAGE Select language for display texts

• GB / USA (English) • F (French)

• D (German) • others on request

Press ↵ key to return to Fct. 3.01 “LANGUAGE”.

3.02 FLOWMETER Set data for primary head

→ DIAMETER Select size from meter size table

• DN 2.5 - 1000 mm equivalent to 1/10- 40 inch

Select with ↑ or ↓ key.
Press ↵ key to transfer to subfunction “FULL SCALE ”.

→ FULL SCALE Full-scale range for flow Q

100%

To set, refer to Fct. 1.01 “FULL SCALE” above.

Press ↵ key to transfer to subfunction “GK VALUE”.

→ VALUE P Pulse value (Fct. 1.06

“VALUE P”

) has been changed.
With the “old” pulse values the output frequency (F)
would have been exceeded or not reached.

P

min

= F

min

/ Q

100% Pmax

= F

max

/ Q

100%

Check new values!

→ GK VALUE Primary head - Set primary constant GK

see primary head nameplate.
Ran

ge: • 1.0000 - 9.9999

Press ↵ key to transfer to subfunction “FIELD. FREQ.”.

→ FIELD FREQ. Magnetic field frequency

Values: 1/6

and 1/18 of power frequency, see nameplate.

Press ↵ key to transfer to subfunction “FLOW DIR.”;
DC units only: to transfer to subfunction “LINE FREQ.”.

→ LINE FREQ. Normal line frequency in your country

Please note: This function is only provided for units
with DC power supply 24 V DC to suppress line-frequency interference.
Values: 50 Hz and 60 Hz

Press ↵ key to transfer to subfunction “FLOW DIR.”.

→ FLOW DIR. Define flow direction (in F/R mode: forward flow).

Set according to direction of arrow on primary head:

• + DIR. • – DIR. Select using ↑ or ↓ key.
Press ↵ key to return to Fct. 3.02 “FLOWMETER ”.

Installation and operating instructions IFC 020

4/9

Fct. Text Description and settings

3.05 USER UNIT Set any required unit for flowrate and counting

→ TEXT VOL. Set text for required flowrate unit (max. 5 characters)

Factory-set: “Liter” or “MGal”.
Characters assignable to each place:

• A-Z, a-z, 0-9, or “ – “ (= blank character).

Press ↵ key to transfer to subfunction “FACT. VOL.”

→ FACT. VOL. Set conversion factor (F

M

) for volume

Factory set “1.00000 E+3” for “Liter” or “2.64172E-4” for “US MGal”
(exponent notation, here: 1x103or 2.64172x10-4).
Factor FM= volume per 1m3.
Setting range • 1.00000 E-9 to 9.99999 E+9 (= 10-9to 10+9)

Press ↵ key to transfer to subfunction “TEXT TIME”.

→ TEXT TIME Set text for required time unit (max. 3 characters)

Factory-set: “hr” (=hour).
Characters assignable to each place:

• A-Z, a-z, 0-9, or “ – “ (= blank character).

Press ↵ key to transfer to subfunction “FACT. TIME”

→ FACT. TIME Set conversion factor (F

T

) for time

Factory-set: “3.60000 E+3” for “hour” or “8.64000 E+4” for “day”
(exponent notation, here: 3.6 x103or 8.64 x10-4).
Set factor FTin seconds.
Setting range

• 1.00000 E-9 to 9.99999 E+9 (= 10-9to 10+9)

Press ↵ key to return to Fct. 3.05 “USER UNIT”.

3.06 APPLICAT. Set overload point for A/D converter

→ FLOW • STEADY (150% of Q

100%

) • PULSATING (1000% of Q

100%

)

Press key ↵ to return to Fct. 3.06 “APPLICAT.“,

3.07 MEASURING POINT Set measuring point no.
Factory setting: ALTOMETER
Characters assi

gnable to each place:

• A-Z, a-z, 0-9, or “ – “ (= blank character).
Press ↵ key to return to Fct. 3.07 ”MEASURING POINT”

3.08 COM Set comminucation interface

• OFF (switched off)

• HART (HART-interface switched on)

• KROHNE (RS 485 interface switched on)

• Address:”HART” 00-15 / “KROHNE” 000-239

• BAUD RATE: -1200 -2400 -4800 -9600 -19200

(appears with selection “KROHNE” only)

Press key ↵ to return to Fct. 3.08 “COM”.

Installation and operating instructions IFC 020

4/10

Error messages in measuring mode 4.5

The following list gives all errors that can occur during process flow measurement.
Errors shown in display when “YES“ set in Fct. 1.04 DISPLAY, subfunction “DISP. MSG.“.

Error messages Description of error Error clearance

LINE INT. Power failure Note:

Cancel error in RESET/QUIT. menu

no counting during power failure Reset totalizer if necessary.

CUR. OUTP. I Current output overranged. Check and if necessary correct

(Flow > measuring rage) instrument parameters. After

elimination of cause, error message
deleted automatically.

PULSOUTP. P Pulse output overranged. Check and if necessary correct

Note:

instrument parameters. After

totalizer deviation possible. elimination of cause, error message

deleted automatically.

TOTALIZER Totalizer has been reset Cancel error message in

RESET/QUIT. menu, see Section 4.6.

ADC Analog / digital Error message deleted automatically

converter overranged after elimination of cause.

FATAL. ERROR Fatal error, all outputs set Please consult factory.

to “min. values“

Installation and operating instructions IFC 020

4/11

4.6 Reset totalizer and cancel error messages, RESET / QUIT menu

Cancel error messages in RESET / QUIT menu

Key Display Description

- - - - - - - - - - - - / - - - Measuring mode

↵ CodE 2 - - Key in entry code 2 for RESET / QUIT

menu: ↑→

↑ → ERROR QUIT. Menu for error acknowledgement
→ QUIT. NO Do not delete error messages,

press ↵ twice = return to measuring mode
↑ QUIT. YES Delete error messages
↵ ERROR QUIT. Error messages deleted
↵ - - - - - - - - - - - - / - - - Return to measuring mode

Reset totalizer(s) in RESET / QUIT menu

Key Display Description

- - - - - - - - - - - - / - - - Measuring mode

↵ CodE 2 - - Key in entry code 2 for RESET / QUIT

menu: ↑→

↑ → ERROR QUIT. Menu for error acknowledgement
↑ TOTAL. RESET Menu for resetting totalizer
→ RESET NO Do not reset totalizer,

press ↵ twice = return to measuring mode
↑ RESET. YES Reset totalizer
↵ RESET QUIT. Totalizer reset
↵ - - - - - - - - - - - - / - - - Return to measuring mode

Installation and operating instructions IFC 020

4/12

Examples of setting the signal converter 4.7

As an example the cursor, flashing part of display, is shown below in bold type.

• Change measuring range of current output and value for error messages (Fct. 1.05):

• Change measuring range from 04-20 mA to 00-20 mA

• Change value for error messages from 0 mA to 22 mA

Key Display Description

→ If “YES” set under Fct. 3.04 ENTRY CODE, key in the

9-keystroke CODE 1 now: → →→ ↵ ↵ ↵ ↑ ↑ ↑

Fct. 1.00 OPERATION

→ Fct. 1.01 FULL SCALE
4x ↑ Fct. 1.05 CURRENT I

→ FUNCT. I
→↵ RANGE I
→ 04-20 mA Old current range
↑ 00-20 mA New current range
↵ I ERROR
→ 0 mA Old value for error messages
2x ↑ 22 mA New value for error messages
↵ Fct. 1.05 CURRENT I
↵ Fct. 1.00 OPERATION
↵ STORE YES
↵ - - - - - - - - - - - - / - - - Measuring range with new data for the current output

Installation and operating instructions IFC 020

5/1

5 Description of functions

5.1 Full-scale range Q

100%

π

4

π

4

Fct. 1.01 FULL SCALE

Press → key.

Choice of unit for full-scale ran

ge Q

100%

• m3/hr (cubic metres per hour)

• Liter/Sec (litres per second)

• US.Gal/min (US gallons per minute)

• User-defined unit, factory-set is „Liter/hr“ (litres per hour) or “US MGal/day”, see Sect. 5.12.

Select with ↑ or ↓ key.
Use → key to transfer to numerical setting, 1st number (cursor) flashes.

Set full-scale ran

ge Q

100%

The setting range is dependent on meter size (DN) and flow velocity (v).

Q

min

= DN2x v

minQmax

= DN2x v

max

(refer to flow table in Sect. 10.1)

0.0053 – 33 929 m3/hr

0.00147 – 9 424.5 Liter/Sec

0.00233 – 151 778 US.Gal/min

Change flashing number (cursor) with ↑ or ↓ key.
Use → key to shift cursor 1 place to right.
Press ↵ key to return to Fct. 1.01 FULL SCALE.

Note if “VALUE P” is displayed after pressing ↵ key:

PULSE/VOL. is set under Fct. 1.06 PULS B1, subfunction “SELECT P”. Due to the changed
full-scale range Q

100%

, the output frequency (F) of the pulse output will be over- or undershot:

P

min

= F

min

/ Q

100%

P

max

= F

max

/ Q

100%

Change pulse value accordingly, see Sect. 5.7 pulse output P, Fct. 1.06.

5.2 Time constant

Fct. 1.02 TIMECONST.

Press → key.

Choice

• ALL (applies to display and all outputs)

• ONLY I+S (applies only to display, current and status output)

Select with ↑ or ↓ key..
Transfer to number setting with ↵ key. 1st number (cursor) flashes.

Set numerical value

• 0.2 - 99.9 Sec (seconds)

Change flashing number (cursor) with the ↑ or ↓ key.
Use → key to shift cursor 1 place to right.
Press ↵ key to return to Fct. 1.02 TIMECONST.

Installation and operating instructions IFC 020

5/2

Low-flow cutoff 5.3

Fct. 1.03 L.F.CUTOFF

Press → key.

Choice

• OFF (fixed tripping point: ON = 0.1 % / OFF = 0.2 %

with 100Hz and 1000Hz, see Fct. 1.06; 1% resp. 2%)

• PERCENT (variable tripping points: ON = 1 - 19 % / OFF = 2 - 20 %)

Select with ↑ or ↓ key.
Transfer to number setting using →key (only if “PERCENT” selected).

1st number (cursor) flashes.

Settin

g the numerical value when “PERCENT” selected

• 01 to 19 (cutoff “on” value, left of hyphen)

• 02 to 20 (cutoff “off” value, right of hyphen)

Change flashing number (cursor) with the ↑ or ↓ key.
Shift cursor 1 place to right using → key.
Press ↵ key to return to Fct. 1.03 L.F.CUTOFF.

Note: The cutoff “off” value must be greater than the cutoff “on” value.

Continuation see next page

Display 5.4

Fct. 1.04 DISPLAY

Press → key.
→

DISP. FLOW = select unit for display of flowrate, press → key

• NO DISP. (no display)

• m3/hr (cubic metres per hour)

• Liter/Sec (litres per second)

• US.Gal/min (US gallons per minute)

• user-defined unit, factory-set: “Liter/hr” (litres per hour) or “US MGal/day”, see Sect. 5.14

• PERCENT (percentage display)

• BARGRAPH (numerical value and bar graph display in %)

Select with ↑ or ↓ key.
Press ↵ key to transfer to subfunction “DISP. TOTAL”.

→

DISP. TOTAL = select unit for totalizer display, press → key

• NO DISP. (no display)

• OFF (internal totalizer switched off)

• + TOTAL. • – TOTAL. • +/– TOTAL. • SUM (ΣΣ) • ALL (sequential)

Select with ↑ or ↓ key.
Transfer to totalizer unit setting using ↵ key.

•m3 (cubic metres)

• Liter (litres)

• US.Gal (US gallons)

• user-defined unit, factory-set: “Liter” or “US MGal”, see Sect. 5.14

Select with ↑ or ↓ key.
Transfer to totalizer format setting using →key.

Installation and operating instructions IFC 020

5/3

Settin

g of totalizer format

• Auto (exponent notation)

• # . ####### • ##### . ###

• ## . ###### • ###### . ##

• ### . ##### • ####### . #

• #### . #### • ########

Select with ↑ or ↓ key..
Press ↵ key to transfer to subfunction “DISP. MSG”.

→

DISP. MSG. = additional messages required in measuring mode, press → key

•NO (no other messages)

• YES (display other messages, e.g. errors, in sequence with the measured values)

Select using the ↑ or ↓ key.
Press ↵ key to return to Fct. 1.04 DISPLAY.

Note: “BUSY” is displayed in the measuring mode when all displays are set to “NO DISP.” or
“NO”. Sequencing of displays is automatic. However, in the measuring mode, manual sequencing

can be carried out with the ↑ key. Return to automatic sequencing after approx. 3 minutes.

Please refer to Sect. 3.2 “factory settings”

5.5 Internal electronic totalizer

The internal electronic totalizer counts in m3, regardless of the unit set under Fct. 1.04,
subfunction “DISP. FLOW”.
The counting range is dependent upon the meter size and has been selected such that the
totalizer will count for a minimum of 1 year without overflow:

Only part of the totalizer count is shown in the display because it is not possible to output
a 14-digit number. Unit and format of the display are freely selectable, see Fct. 1.04, subfunction
“DISP. TOTAL” and Sect. 5.4. This determines which part of the count is to be displayed.
Display overflow and totalizer overflow are independent of one another.

Exam

ple

Internal count 0000123 . 7654321 m

3

Format, display unit XXXX . XXXX Liter
Internal count in unit 0123765 . 4321000 Liter
Displayed 3765 . 4321 Liter

Meter size Counting range

DN mm inch in m

3

US Gal equivalent

2.5 - 50

1

/10- 2 0 - 999 999.99999999 0 - 264 172 052.35800

65 - 200 2

1

/2- 8 0 - 9 999 999.9999999 0 - 2 641 720 523.5800

250 - 600 10 - 24 0 - 99 999 999.999999 0 - 26 417 205 235.800

700 -1000 28 - 40 0 - 999 999 999.99999 0 - 264 172 052 358.00

Installation and operating instructions IFC 020

5/4

Current output I 5.6

Fct. 1.05 CURRENT I

Press → key.
→

FUNCT. I = Select function for current output , press → key

• OFF (switched off, no function)

• 1 DIR. (1 flow direction)

• 2 DIR. (2 flow directions, F/R mode, forward/reverse)

Select using ↑ or ↓ key.

Transfer to subfunction “RANGE I”

with ↵ key.

Exceptions: When “OFF” selected, return to Fct. 1.05 CURRENT I.

→

RANGE I = select measuring range, press → key

• 0 - 20 mA

fixed ranges

• 4 - 20 mA

• mA (user-defined value) I

0%

– I

100%

(value I0%< I

100%

!) 0-16 mA 4-20 mA

Press → key to transfer to number setting.
Select with ↑ or ↓ key.
Press key ↵ to transfer to subfunction “I

ERROR”.

→ I ERROR = set error value, press → key

• 22 mA (fixed value)

• 0.0 - I

0%

mA (variable value; only variable when I

0%

≥ 1 mA, see ”RANGE I“ above)

Select using ↑ or ↓ key.. Press → key to transfer to number setting.
Press key ↵ to return to Fct. 1.05 CURRENT I.

Please refer to Sect. 3.2 “Factory settings”.

Refer to Sect. 2.3 for connection diagrams, and to Sect. 5.14 for characteristics.

}

Installation and operating instructions IFC 020

5/5

5.7 Pulse output P

Fct. 1.06 PULS.OUTP. P

Press key → .
→

FUNCT. P = select function for pulse output, press → key

• OFF (switched off, no function)

• 1 DIR. (1 flow direction)

• 2 DIR. (2 flow directions, F/R mode, forward/reverse)

Select with key ↑ or ↓.
Press ↵ key to transfer to subfunction “SELECT

P”.

Exception: When “OFF” selected, return to Fct. 1.06 PULS P.

→

SELECT P = select pulse type, press → key

• 100 Hz

• 1000 Hz

• PULSE/VOL. (pulses per unit volume, flow)

• PULSE/ZEIT (pulses per unit time for 100% flow)

Select using ↑ or ↓ key.

Transfer to subfunction ”PULSWIDTH”

with ↵ key.

Note: when 100 Hz or 1000 Hz selected, return to Fct. 1.06 PULS.OUTP. P.

→

PULSWIDTH = set pulse width, press →→ key

• 50 mSec F

max

= 10 Hz F

min

= 0.0056 Hz (= 20 Pulse / hr)

• 100 mSec = 5 Hz

• 200 mSec = 2.5 Hz

• 500 mSec = 1 Hz

• 501 mSec = 0,5 Hz

Select using ↑ or ↓ key.

Transfer to subfunction ”V

ALUE P” with ↵ key or return to Fct. 1.06

PULS.OUT. P, depending on choice of pulse type in subfunction ”SELECT P”.

Installation and operating instructions IFC 020

5/6

→ VALUE P = set pulse value per unit volume
(appears only when “PULSE/VOL.” set under “SELECT P”, press → key.

• XXXX PulS/m3

• XXXX PulS/Liter

• XXXX PulS/US.Gal

• XXXX PulS/ user unit, factory-set: “Liter” or “US MGal”, see Sect. 5.12.

Select using ↑ or ↓ key.
Transfer to number setting with →key. 1st digit (cursor) flashes.

Set numerical value

• XXXX (setting range depends on pulse width and
full-scale range: P

min

= F

min

/ Q

100%

P

max

= F

max

/ Q

100%

)

Change flashing digit (cursor) with ↑ or ↓ key,
shift cursor 1 place to right with → key.
Press ↵ key to return to Fct. 1.06 PULS. P.

or

Please refer to Sect. 3.2 “factory settings”

→ VALUE P = set pulse value per unit time,

(a

ppears only when ”PULSE/TIME” has been set under “SELECT P”), press → key.

• XXXX PulSe/Sec

• XXXX PulSe/min

• XXXX PulSe/hr

• XXXX PulSe/ user unit, factory-set: “hr”, see Sect. 5.12.

Select using ↑ or ↓ key.
Transfer to number setting with →key, 1st digit (cursor) flashes.

Set numerical value

• XXXX (setting range depends on pulse width)

Change flashing digit (cursor) with ↑ or ↓ key,
shift cursor 1 place to right with → key.
Press ↵ key to return to Fct. 1.06 PULS. P.

Refer to Sect. 2.4 for connection diagrams, and to Sect. 5.14 for characteristics.

Installation and operating instructions IFC 020

5/7

5.8 Status output S

Fct. 1.07 STATUS S

Press key → .

Select function of status out

puts, press → key

• ALL ERROR (indicates all errors)

• FATAL.ERROR (indicates fatal errors only)

• OFF (switched off, no function)

•ON (indicates that flowmeter is operative)

• F/R INDIC. (indicates direction for current and pulse outputs, F/R mode)

• TRIP. POINT (setting range: 002 – 115 PERCENT of Q

100%

, full-scale range)

Transfer to number setting with ↵key, 1st digit (cursor) flashes.
Change flashing digit (cursor) with ↑ and ↓ keys. Use →
and ← keys to shift cursor 1 place to right or left.

Press ↵ key to return to Fct. 1.07 STATUS S.

• Characteristic of status output Switch open Switch closed

OFF (switched off) no function
ON (e.g. operation indicator) power OFF power ON
F/R INDIC. Forward flow Reverse flow
TRIP POINT (limit switch) inactive active
ALL ERROR (all errors) errors no error
FATAL.ERROR (fatal errors only) errors no error

Please refer to Sect. 3.2 “factory settings”

Refer to Sect. 2.4 for connection diagrams, and to Sect. 5.14 for characteristics.

Installation and operating instructions IFC 020

5/8

Language 5.9

Entry code 5.10

Fct. 3.01 LANGUAGE

Press → key.

Select lan

guage for texts in display

•D (German)

• GB/USA (English)

•F (French)

• others on request

Select using ↑ or ↓ key.
Press ↵ key to return to Fct. 3.01 LANGUAGE.

Fct. 3.04 ENTRY CODE

Press → key.

Choice

•NO (no code, enter setting mode with → key)

• YES (enter setting mode with → key and Code 1: → → → ↵ ↵ ↵ ↑ ↑ ↑)

Select using ↑ or ↓ key.
Press ↵ key to return to Fct. 3.04 ENTRY CODE.

Installation and operating instructions IFC 020

5/9

5.11 Primary head

Please refer to Sect. 3.2 “factory settings”

Fct. 3.02 FLOW METER

Press → key.
→

DIAMETER = set meter size (see instrument nameplate) press → key

Select size from table of meter sizes:

• DN 2.5 - 1000 mm equivalent to

1

/10 - 40 inch

Select using ↑ or ↓ key.

Transfer to subfunction “FULL SCALE”

with ↵ key.

→

FULL SCALE = set full-scale range, press → key.

Set as described in Sect. 5.1.

Transfer to subfunction “GK V

ALUE” with ↵ key.

Note: if “VALUE P” is displayed after pressing ↵ key.

PULSE/VOL. is set under Fct. 1.06 PULS.OUTP. P, subfunction “SELECT P”. Because the
full-scale range Q

100%

has been changed, the output frequency (F) of the pulse output is over- or

undershot: P

min

= F

min

/ Q

100%

P

max

= F

max

/ Q

100%

Change pulse value accordingly, see Sect. 5.7 pulse output P, Fct. 1.06.

→

GK VALUE = set primary constant GK, press → key.

• 1.0000 - 9.9999 (note information on instrument nameplate, do not change setting !)

Change flashing digit (cursor) with ↑ or ↓ key.
Shift cursor 1 place to right or left with → or ← key.

Transfer to subfunction “FIELD

FREQ.” with ↵ key.

→

FIELD FREQ. = set magnetic field frequency, press → key

• 1/2 • 1/18 (1/2, 1/6 1/18 or 1/36 of power frequency,

• 1/6 • 1/36 see instrument nameplate, do not change setting)

Select using ↑ or ↓ key.

Transfer to subfunction “FLOW DIR.”

with ↵ key.

(only for units with DC power supply, transfer to subfunction “LINE FREQ”).

→

LINE FREQ. = normal line frequency in your country, press → key.

(Please note, applicable for flowmeters equipped with DC in power supply!)

• 50 Hz Select using the

↑

or ↓ key.

• 60 Hz Transfer to subfunction “FLOW

DIR.” with ↵ key.

→

FLOW DIR. = set flow direction, press → key.

• + DIR. (for identification of flow direction, see “+” arrow on primary head;

• - DIR. for F/R mode, identifies the “positive” flow direction)

Select using the ↑ or ↓ key.
Press ↵ key to return to Fct. 3.02 FLOW METER.

Zero check

, see Fct. 3.03 and Sect. 7.1.

}

Installation and operating instructions IFC 020

5/10

User-defined unit 5.12

Fct. 3.05 USER UNIT

Press → key.
→

TEXT VOL = set text for user-defined unit, press → key

• Liter (max. 5 characters, factory-set: “Liter” or “US MGal”)

Characters assi

gnable to each place: A-Z, a-z, 0-9, or “–” (= blank character)

Change flashing place (cursor) using ↑ or ↓ key.
Use → or ← key to shift cursor 1 place to right or left.

Transfer to subfunction “F

ACT. VOL.” with ↵ key.

→

FACT. VOL. = set factor F

M

for volume, press → key

• 1.00000 E+3 (factory-set: “1000 or 2.64172 x 10

-4

” / factor FM= volume per 1 m3)

Settin

g range: 1.00000 E-9 to 9.99999 E+9 ( = 10-9to 10+9)

Change flashing place (cursor) using ↑ or ↓ key..
Use → or ← key to shift cursor 1 place to right or left.

Transfer to subfunction “TEXT TIME”

with ↵ key.

→

TEXT TIME = set text for required time, press → key

•hr (max. 3 places, factory-set: “hr = hour”)

Characters assi

gnable to each place: A-Z, a-z, 0-9, or “–” (= blank character)

Change flashing place (cursor) using ↑ or ↓ key.
Use → or ← key to shift cursor 1 place to right or left.

Transfer to subfunction “F

ACT. TIME” with ↵ key.

→

FACT. TIME = set factor F

T

for time, press → key

• 3.60000 E+3 (factory-set: “3600” for hour or “8.64 x 104” for day / set factor FT

in seconds)
Settin

g range: 1.00000 E-9 to 9.99999 E+9 ( = 10-9to 10+9)

Change flashing place (cursor) using ↑ or ↓ key.
Use → or ← key to shift cursor 1 place to right or left.
Press ↵ key to return to Fct. 3.05 USER UNIT.

Factors for volume F

M

(factor FM= volume per 1 m3)

Volumetric unit Text examples Factor F

M

Setting

Cubic metres m3 1.0 1.00000 E+0
Litres Liter 1 000 1.00000 E+3
Hectolitres h Lit 10 1.00000 E+1
Decilitres d Lit 10 000 1.00000 E+4
Centilitres c Lit 100 000 1.00000 E+5
Millilitres m Lit 1 000 000 1.00000 E+6
US gallons USGal 264.172 2.64172 E+2
Millions US gallons USMG 0.000264172 2.64172 E -4
Imperial gallons GBGal 219.969 2.19969 E+2
Mega imperial gallons GBMG 0.000219969 2.19969 E -4
Cubic feet Feet3 35.3146 3.53146 E+1
Cubic inches inch3 61 024.0 6.10240 E+4
US barrels liquid US BaL 6.28982 6.28982 E+0
US barrels ounces US BaO 33 813.5 3.38135 E+4

Factors for time FT(factor FTin seconds)

Time unit Text examples Factor FT (seconds) Setting

Seconds Sec 1 1.00000 E+0
Minutes min 60 6.00000 E+1
Hours hr 3 600 3.60000 E+3
Day DAY 86 400 8.64000 E+4
Year (= 365 days) YR 31 536 000 3.15360 E+7

Installation and operating instructions IFC 020

5/11

I

I

max

I

100%

I

0%

Q

R

Q

F

%

0

%100 Max

P

115%

P

100%

P= 0 Hz

Q

R

Q

F

%

0

%100 Max

P

max

I

I

max

I

100%

I

0%

Q

R

Q

F

%

0

%100 MaxMax 100

P

115%

P

100%

P= 0 Hz

Q

R

Q

F

%

0

%100 Max

Max 100

P

max

S

Q

R

Q

F

%

0

%100 Max

Max 100

5.13 F/R mode, forward/reverse flow measurement

• Refer to Sect. 2.4 for electrical connection of outputs.

• Define direction of forward (normal) flow, see Fct. 3.02, subfunction “FLOW DIR.”:

in conjunction with F/R operation, set the direction for the forward flow here.
“+” signifies the same direction as shown by the arrow on the primary head,
“–” signifies the opposite direction.

• Set the status output to ”F/ R INDIC.”, see Fct. 1.07.

• Current and/or pulse output must be set to “2 DIR.”, see Fct. 1.05 and 1.06, subfunctions

“FUNCT. I” and “FUNCT. P”.

5.14 Characteristic of outputs

I Current output
I

0%

0 or 4 mA

I

100%

20 mA

P Pulse output
P

100%

Pulses at Q

100%

, full-scale range

Q

F

1 flow direction, forward flow in F/R operation

Q

R

Reverse flow in F/R operation

Q

100%

Full-scale range

S Status output

switch open
switch closed

1 flow direction 2 flow directions, F/R mode

Installation and operating instructions IFC 020

5/12

Applications 5.15

Measuring point identification 5.16

Fct. 3.06 APPLICAT.

Press key →.

→

FLOW = Set characterization for the flow, press key

• STEADY (flow is steady)

• PULSATING (pulsating flow, e.g. due to reciprocating pumps,

see also Sect. 6.4, 6.5 and 6.6
“Special-case applications”)

Press ↵ key to return to Fct. 3.06 APPLICAT.

}

select function using

key ↑ or ↓

Fct. 3.07 MEAS.PNT

.

Press key →.

Set measuring point identification using max. 10 characters ,

(e.g. TQ1_532197)

You can use any out of A...Z / a...z / 0...9 or _ (underscore)

- Select character by pressing key ↑ or ↓.

- Use key → to shift one place to the left, back with ← key.

Press key ↵ to return to Fct. 3.07 MEAS.PNT.

Communication interface 5.17

Control input E (IFC 020 E only) 5.18

Fct. 3.08 COM

Press key →.

Specify function

• OFF (Switched off)

• HART (HART Interface)

• KROHNE (RS 485 Interface)

Use key ↑ or ↓ to set ADDRESS 00-15 after selecting "HART" with → key.
Press key ↵ dto return to Fct. 3.08 COM.

Use key ↑ or ↓ to set ADDRESS 000-239 after selecting "KROHNE" (RS 485). Press key → and
set up BAUD RATE: • 1200 • 2400 • 4800 • 9600 • 19200. Use key ↑ or ↓ to select baud rate.
Press key ↵ to return to Fct. 3.08 COM.

}

select function using key ↑ or ↓

Fct. 1.08 CTRL.INP

. E

Press key → .

Select control input function, using key ↑ or ↓.

• OFF (Switched off, out of function)

• ZERO OUTPUT (Set output and display to "Min. values")

• RESET COUNT. (Reset counter)

• RESET ERROR (Delete / confirm error message)

Press key ↵ to return to Fct. 1.08 CTRL.INP. E

For factory-set preferences refer to the start-up protocol and Section 3.2.

Installation and operating instructions IFC 020

6/1

Part C Special applications, functional checks,

service, and order numbers

6 Special applications

Power supply unit (and section switch amplifier)
must be set up accordingly if in use for HART®operation.

For further information on setting the signal converter refer to chapters 4 and 5.

Settings and operation

Fct. Parameter Point-to-point Multidrop

mode mode

1.05 FUNCT. I 1 CORRECT. or OFF

2 CORRECT.

RANGE I 4-20 mA or Any

I0% m 4 mA

3.09 COM HART HART

ADDRESS 0 01, 02, 03 ..... 15

(use one address at
one time only)

Operation
Current output Active or passive Passive only

The HART interface is a smart interface, in other words a communication signal superimposed on
the current output. All functions and parameters can be accessed via this interface.

The following HART features are supported:

• point-to-point connection

• multidrop (up to 15 HART devices)

The burst mode is not normally used. Further information about HART is available from the HART
Communication Foundation, of which Krohne is a member.

Electrical connection

6

.1 HART

®

interface

HART®- active HART®- passive

active passive

to HART

®

- communicator

or smart-converter

to HART®- communicator
or smart converter

R

i

≥ 250 Ω

power supply unit

to next

HART®-device

Installation and operating instructions IFC 020

6/2

HART o

perating tools / Device Description (DD)

The IFC 020 can be operated either via its local operator interface or by means of the HART
communicator or the CONFIG program. Both operating tools are available from KROHNE.
Operator control by means of the HART communicator requires a device description (DD) which
we can load for you into the communicator. We can, of course, also load the DDs of all
manufacturers who have filed their DDs with the HART Communication Foundation. If you wish to
use the IFC 020 in your operating tool, for example, please ask for the description of the HART
command used so that you can address the complete IFC 020 functionality via HART.

Electrical connection

Settings for use in interface operation

It is essential to blank off the final signal converter's electrical bus. To do this, solder up the
semicircular circuits of solder points S6 and S7 on the amplifier PCB. For further information refer
to sections 8.8 and 8.9.

The RS 485 protocol is available. Please contact your local Krohne supplier / company.

Krohne RS 485 Interface 6.2

For further information on setting the signal converter refer to chapters 4 and 5.

Fct. Parameter Krohne RS 485 Interface

3.08 COM KROHNE

ADRESS 000-239
BAUD RATE • 1200 • 09600

• 2400 • 19200

• 4800

Terminals:

IFC 020 E

IFC 020 K and F

Address, e.g.:

Output signals can be stabilized to values as for “zero” flow to prevent random output signals
when the measuring tube is empty or when the electrodes are not wetted in the event the
measuring tube is partially full.

- Display: 0

- Current output: 0 or 4 mA, see setting in Fct. 1.05

- Pulse output: no pulses (= 0 Hz), see setting in Fct. 1.06

Precondition:

- electrical conductivity of product: ≥ 200 µS/cm,
≥ 500 µS/cm for meter sizes DN 2.5 - 15 and

1

/10”-1/2”

- Signal cable length ≤ 10m and vibration free with signal converter

- Homogeneous liquid products, free of solids and gasses an do not tend to
electrical or catalytic reactions.

Chan

ges on amplifier PCB, see Fig. in Sect. 8.8.

Switch off power source before opening the housing!

Fig. A, B and D are situated in Section 8.1!

1) Unscrew 4 recessed head screws (Fig. A) and remove transparent cover.

2) Unscrew 4 recessed head screws (Fig. B) and remove black plastic cover.

3) Unscrew 2 recessed head screws (Fig. D) and remove black metal cover.

4) Unscrew 4 recessed head screws and fold display to the side carefully.

5) Join the two “semicircles” of points S1 and S3 on the amplifier board with tin solder,

see illustration in Sect. 8.8.

6) Reassemble in reverse order, points 4) - 2) above.

7) Switch on power.

8) Check setting of the low-flow cutoff SMU, Fct. 1.03, and reset if necessary:

L.F.CUTOFF switched on, range:

O

perator control:

See Sect. 4 and 5.3 Fct. 1.03.

9) After checking and/or resetting,
replace the transparent cover and tighten the 4 recessed head screws.

6/3

6.3 Stable signal outputs when measuring tube empty

IFC 020 K and IFC 020 F

Montage- und Betriebsanleitung IFC 020

Full scale range Q

100%

Cutoff ...... values

... OFF ... ... ON ...

> 3 m/s > 10 ft/s >02 % 1 %
1 - 3 m/s 3 -10 ft/s >06 % 4 %
< 1 m/s < 03 ft/s >10 % 8 %

Installation and operating instructions IFC 020

6/4

IFC 020 E

Changes on amplifier PCB, see Fig. in Sect. 8.9.

Switch off power source before opening the housing!

Illustrations 1 till 3 are situated in Section 8.1

1) Unscrew the 4 recessed head screws (S1) on the front side (Fig. 1).

2) Carefully remove the plug-in unit from the subassembly support.

3) Unscrew the 4 recessed head screws (S2) on the front side (Fig. 1).

4) Remove the ribbon cable from the display unit. For this, first pull up the securing clamp

on the socket (Fig. 3).
Note down situation of contact side of the foil plug.

5) Unscrew the 4 recessed head screws on the back side (Fig. 2)
and carefully pull the back cover
together with the electronic unit out of the plug-in unit.

6) Join the “semicircles” of points S2,S3 and S4 on the amplifier board with tin solder,
see illustration in Sect. 8.9.

7) Reassemble in reverse order, points 5) - 1) above.

8) Switch on power.

9) Check setting of the low-flow cutoff SMU, Fct. 1.03, and reset if necessary:

L.F.CUTOFF switched on, range:

Full scale range Q

100%

Cutoff ...... values

... OFF ... ... ON ...

> 3 m/s > 10 ft/s >02 % 1 %
1 - 3 m/s 3 -10 ft/s >06 % 4 %
< 1 m/s < 03 ft/s >10 % 8 %

Installation and operating instructions IFC 020

6/5

6.4 Pulsating flow

Application

downstream of positive-displacement pumps (reciprocating or diaphragm pumps) without
pulsation dampener

Operator control of the signal converter for the new settings, see Sect. 4 and 5

To change settings

• Fct. 3.02 FIELD FREQ.

(change magnetic field frequency)
– Stroke frequency less than 80 strokes/min (at max. pump lift): do not change setting.
– Stroke frequency 80 - 200 strokes/min (at max. pump lift): change setting to 1/2,

only practical with IFM 5020 K and IFS 5000 F (DN 2.5-100 /

1

/10”-4”)

and IFM 4020 K and F IFS 4000 F (DN 10, 15, 50-100 /

1

/10”, 1/2”, 2”-4”),

Please consult factory where other types and meter sizes are concerned.

– Please note: given stroke frequencies close to the tripping point of 80 strokes/min, additional

measuring errors of approx. ± 0.5% of the measured value may occasionally occur.

• Fct. 3.06 APPLICA

T. (adjust overload point of the A/D converter to the application)

Change setting to “PULSATING”.

• Fct. 1.04 DISP

. FLOW (change display presentation of flow)

Change setting to “BARGRAPH” to allow better assessment of display unsteadiness.

• Fct. 1.02 TIMECONST

. (change time constant)

– Set to “ALL” and time (t) in seconds.

– Recommended: t [s] =

– Example: min. number of strokes in operation = 50 strokes/minute

t [s] = = 20 s

With this setting, the residual ripple of the display will amount to
approx. ± 2% of the measured value. Doubling the time constant
will reduce the residual ripple by a factor of 2.

1000

min. strokes / min

1000

50 / min

6.5 Rapid changes in flowrate

Application

in conjunction with batching processes, fast-response control loops, etc.

Operator control of the signal converter for the new settings

refer to chapters 4 and 5

To change settings

• Fct. 1.02 TIMECONST

. (change time constant)

Setting to “ONLY I” and set time to 0.2 s.

•D

ynamic response with meter sizes DN 2.5-300 / 1/10”-12”

Dead time: approx. 0.06 s at 50 Hz line frequency

approx. 0.05 s at 60 Hz line frequency

Time constant: set as above, current output (mA) additionally plus 0.1 s

• Reducin

g the dead time by a factor of 3 (possible by changing the magnetic field frequency)
Fct. 3.02 FLOW METER, subfunction “FIELD FREQ.”, change to “1/2”,
only practical with IFM 5020 K and IFS 5000 F (DN 2.5-100 /

1

/10”-4”)

and IFM 4020 K and IFS 4000 F (DN 10, 15, 50-100 /

1

/10”, 1/2”, 2”-4”)

Please consult factory where other types and meter sizes are concerned.

Installation and operating instructions IFC 020

6/6

Unsteady display and outputs 6.6

Unsteady display and outputs can occur in connection with
– high solids contents,
– non-homogeneity,
– poor blending, or
– chemical reactions still in progress in the process liquid.

If, in addition, flow is also pulsating due to the use of diaphragm or reciprocating pumps,
refer to Sect. 6.4.

Operator control of the signal converter for the new settings, see Sect. 4 and 5

To change settings

• Fct. 1.04 DISP

. FLOW (change display presentation of the flow)

Change setting to “BARGRAPH” to allow better assessment of display unsteadiness.

• Fct. 1.02 TIMECONST

. (change time constant)
– Setting to “ONLY I”, to “ALL” if pulse output too unsteady.
– Set time constant to approx. “20 s”, observe unsteadiness of display and adjust time

constant if necessary.

• Fct. 3.06 APPLICA

T. (adjust overload point of the A/D converter to the application)

Set to “PULSATING” on trial basis, if unsuccessful return to “STEADY”.

• Fct. 3.02 FIELD

FREQ. (change magnetic field frequency)
On trial basis, change setting to “1/2”; if unsuccessful return to previous setting,
usually “1/6”.

Only practical with IFM 5020 K and IFS 5000 F (DN 2.5-100 /

1

/10”-4”)

and IFM 4020 K and IFS 4000 F (DN 10, 15, 50-100 /

1

/10”, 1/2”, 2”-4”),

Consult factory where other types and meter sizes are concerned.

Installation and operating instructions IFC 020

7/1

7. Functional checks

7.1 Zero check Fct. 3.03

Switch off power supply before opening the housing

• Set “zero” flow in the pipeline, but make sure that the measuring tube is completely
filled with fluid.

• Switch on the system and wait 15 minutes.

• Press the following keys for zero measurement:

Key Display Description

→ If “YES” set under Fct. 3.04 ENTRY CODE, key in

9-keystroke CODE 1 now: → → → ↵ ↵ ↵ ↑ ↑ ↑

Fct. 1.00 OPERATION

2x ↑ Fct. 3.00 INSTALL.
→ Fct. 3.01 LANGUAGE

2x ↑ Fct. 3.03 ZERO SET

→ CALIB. NO
↑ CALIB. YES
↵ 0.00 - - - - - / - - - Flowrate displayed in set unit, see Fct. 1.04 DISPLAY,

subfunction “DISP. FLOW”.
Zero measurement in progress, duration approx. 15 - 90 seconds.
When flow “> 0” “WARNING” notice appears, confirm with ↵ key.

STORE NO If new value not to be stored, press ↵ key (3x) 4x = return to

measuring mode.

↑ STORE YES
↵ Fct. 3.03 ZERO SET Store new zero value.
(2x) 3x ↵ - - - - - - - - - - - - / - - - Measuring mode with new zero.

Key Display Description

→ If “YES” set under Fct. 3.04 ENTRY CODE, key in

9-keystroke CODE 1 now: → → → ↵ ↵ ↵ ↑ ↑ ↑

Fct. 1.00 OPERATION

↑ Fct. 2.00 TEST
→ Fct. 2.01 TEST Q
→ SURE NO
↑ SURE YES

↵ 0 PERCENT Current, pulse and status indication outputs indicate the

corresponding values.

± 10 PERCENT

↑ ± 50 PERCENT Select using ↑ or ↓ key

± 100 PERCENT
± 110 PERCENT

↵ Fct. 2.01 TEST Q End of test, actual measured values again present at outputs.
(2x) 3x ↵ - - - - - - - - - - - - / - - - Measuring mode

7.2 Test of measuring range Q, Fct. 2.01

Switch off power supply before opening the housing !

• For this test a measured value can be simulated in the range of -110 to +110 percent

of Q

100%

(full-scale range set, see Fct. 1.01 FULL SCALE).

• Switch on the system.

• Press the following keys for this test:

Installation and operating instructions IFC 020

7/2

Faults and symptons during start-up and process flow measurement 7.4

Before contacting Krohne Service, please read through the

following tables. THANK YOU !

• Most faults and symptoms occuring with the flowmeters can be eliminated

with the aid of the following tables.

• For greater clarity, faults and symptoms in the tables are divided into various groups.

Groups: D Display

I Current output
P Pulse output
S Status indication output
D / I / P / S LED display, current output, pulse output,

status output and display

Hardware information and error status, Fct. 2.02 7.3

Key Display Description

→ If “YES” set under Fct. 3.04 ENTRY CODE,

key in the 9-keystroke CODE 1 now: → → → ↵ ↵ ↵ ↑ ↑ ↑

Fct. 1.00 OPERATION

↑ Fct. 2.00 TEST
→ Fct. 2.01 TEST Q
↑ Fct. 2.02 HARDW. INFO

→→MODUL ADC -.- - - - -.- - 1st window

- - - - - - - - - Sam

ple status code

↵→MODUL IO -.- - - - -.- - 2nd window 3.25105.02 ( 8-character code, 1st line)

- - - - - - - - - 3A47F01DB1 (10-character code, 2nd line)

↵→MODUL DISP. -.- - - - -.- - 3rd window

- - - - - - - - -

↵→MODUL RS. -.- - - - -.- - 4rd window

PLEASE NOTE DOWN ALL 6 STATUS CODES !

↵ Fct. 2.02 HARDW. INFO Terminate hardware information
(2x) 3x ↵ - - - - - - - - - - - - - / - - - Measuring mode

• Before consulting factory about errors or flow measurement problems, please invoke
Fct. 2.02 HARDW. INFO (hardware information).

• An 8-character and a 10-character status code are stored under this function in
each of 3 “windows”. These 6 status codes allow rapid and simple diagnosis of your
compact flowmeter.

• Switch on system.

• Press the following keys for display of the status codes:

If you need to return your flowmeter to Krohne, please refer to last

but one page of these Instructions !

Group D Display shows . . . Cause Remedial action

D 1 LINE INT. Power failure. Delete error message in

Note:

no counting during RESET/QUIT. menu. Reset

power failure. totalizer(s) if need be.

D 2 CUR.OUTP. I Current output overranged. Check instrument parameters

and correct if necessary.
Error message deleted
automatically after cause
has been eliminated.

D 3 PULS.OUTP. P Pulse output overranged. Check instrument parameters,

Note:

totalizer deviation correct if necessary, and reset

possible totalizer(s). Error message

deleted automatically
after cause has been
eliminated.

D 4 ADC Analog/digital converter Error message deleted

overranged. automatically after cause

has been eliminated.

D 5 FATAL. ERROR Fatal Error, Replace signal converter

all outputs set to “min.” (see Sect. 8.4) or contact
values. Krohne Service, having

first noted down hardware
information and error status,
see Fct. 2.02.

D 6 TOTALIZER Counts lost Delete error message in

(overflow, data error) RESET/QUIT. menu.

D 7 „STARTUP“ Hardware fault, Replace signal converter

cyclic flashing Watchdog activated. (see Sect. 8.4) or contact

Krohne Service.

D 8 BUSY Displays for flow, Change setting in

totalizers and errors disabled. Fct. 1.04.

D 9 Unsteady display – Process product Increase time constant,

– conductivity too low, see Fct. 1.02, or switch on.
– particles/air inclusions
– too large or inhomogeneous

– Pulsating flow
– Time constant too low or

switched off.

D 10 No display Power OFF. Switch on power

Check power fuse(s) Replace if defective
F1 (F1 and F2 with DC). (see Sect. 8.2).

Group I Fault / Symptom Cause Remedial action

I 1 Receiver instrument Incorrect connection/polarity Connect properly,

indicates “0”. see Sect. 2.4.

Receiver instrument or current Check output (see Sect. 7.2)
output defective. with new milliammeter:

T

est ok, check connection
cables and receiver instrument,
replace if necessary.
T

est faulty, current output
defective. Replace signal
converter (see Sect. 8.4)
or contact Krohne Service

Current output disabled, Activate under Fct. 1.05.
see Fct. 1.05

Short-circuit between current Check connection and cables,
output and pulse output. see Sect. 2.4. Voltage between

I+ and I⊥ approx. 15 V.
Switch off device, eliminate
short-circuit, and switch
device on again.

I 2 Unsteady display – Process product Increase time constant,

– conductivity too low, see Fct. 1.02
– particles/air inclusions
– too large or inhomogeneous

– Pulsating flow
– Time constant too low or

switched off.

Installation and operating instructions IFC 020

7/3

Installation and operating instructions IFC 020

7/4

Group P Fault / Symptom Cause Remedial action

P 1 Totalizer connected but does Incorrect connection/polarity Connect properly,

not count any pulses see Sect. 2.4.

Totalizer or external voltage Check output (see Sect. 7.2)
source defective. with new totalizer:

T

est ok, check connection
cables and previous
totalizers and external voltage
source, and replace if
necessary.
T

est faulty, pulse output
defective, replace signal
converter (see Sect. 8.4)
or contact Krohne Service.

Current output is external Check connection and cables,
voltage source, short circuit see Sect. 2.4. Voltage between
or current / pulse output I

+

and I⊥ approx. 15 V.

defective Switch off device, eliminate

short circuit, switch device
on again. If no function,
then current or pulse
output defective. Replace
signal converter (see Sect.

8.4) or contact Krohne
Service.

Pulse output is deactivated, Switch on under Fct. 1.06.
see Fct. 1.06.

P 2 Unsteady pulse rate – Process product Increase or switch on

– conductivity too low, time constant, under Fct. 1.02
– particles/air inclusions orswitch on if necessary.
– too large or inhomogeneous

– Pulsating flow
– Time constant too low

– or switched off

P 3 Pulse rate too high or Incorrect setting for Change setting under Fct. 1.06.

too low. pulse output.

Group S Fault / Symptom Cause Remedial action

S 1 No function Incorrect connection/polarity Connect properly,

of status display see Sect. 2.4.

Status display or output Set status output under Fct. 1.07
defective or external to “F/R INDIC.“ (flow direction)
voltage source not and check (see Sect. 7.2)
supplying voltage. with new status display:

T

est ok, check previous
status display and external
voltage source, and replace
if necessary.
T

est faulty, status output
defective, replace signal
converter (see Sect. 8.4) or
contact Krohne Service.

Group D/I/P/S Fault / Symptom Cause Remedial action

D/I/P/S1 Unsteady display and – Process product Increase time constant,

outputs – conductivity too low, under Fct. 1.02

– particles/air inclusions
– too large or inhomogeneous

– Pulsating flow
– Time constant too low

D/I/P/S 2 No display and no Power OFF Switch power on.

function of outputs

Check power fuse(s) Replace if defective,
F1 (F1 and F2 for DC). see Sect. 8.2.

Installation and operating instructions IFC 020

7/5

7.5 Test of signal converter using GS 8 A simulator (option)

7.5.1 IFC 020 K und IFC 020 F signal converter

GS 8 A operating elements and accessories

+
0
–

B Plug for field power

supply, 2-pin

C5 Plug for signal cable,

5-pin

D Switch,

flow direction

H Socket for H2 plug

on cable Z

H2 Plug of cable Z
L Power supply ON
P Potentiometer “zero”
X3 Socket for plug B

on amplifier PCB

X5 Socket for plug C3

on amplifier PCB

Y Switch,

measuring ranges

Z Cable between GS 8 A

and signal converters
IFC 020K and IFC 020 F

Electrical connection

H2

Z

C 5

B

X 5 X 3

amplifier PCB, see
Sect. 8.8

Connection of milliammeter and
electronic frequency counter,
see Sect. 2.4 “Connection of outputs”.

10

Power

Outputs U-clamp terminal

I⊥ I I+ P P⊥ S PE

Milliammeter, accuracy
class 0.1, Ri< 500 ohms,
range 4-20 mA
Electronic frequency
counter, input resistance
approx. 1 kΩ, range
0-1 kHz, time base min. 1
second, see connection
diagrams in Sect. 2.4.

A

a) Switch off power source before

opening the housing !

b) Unscrew the 4 recessed head screws, see

Fig. A in Sect. 8.1, and remove transparent

cover from the signal converter housing.

c) Unscrew recessed head screw, see Fig. B in

Sect. 8.1, and remove black plastic cover.

d) Pull off blue 9-pin plug from the amplifier PCB,

see Sect. 8.9:
socket X3 field power supply and socket X5
signal cable.

e) Connect plug B to socket X3 (2-pin) and

plug C (5-pin) to socket X5 (5-pin)

1,25

2,5

5

10

20

320

160

80

40

20

Y

P

D

L

H

Using GS 8 simulator

Additional adapter is required

between GS 8 and IFC 020 K and IFC 020 F signal converter.

Order No. 2.10764.00.

L N

Installation and operating instructions IFC 020

IFC 020 E signal converter 7.5.2

GS 8A Operating elements and accessories

+
0
–

D Switch,

Flow direction

H Socket for H1

plug On cable M

H1 Plug of cable M

L Power supply ON

M Cable between

GS 8A and IFC 020E
signal converter

P Potentiometer

"zero point"

Y Switch,

Measuring ranges

Z Leitung zwischen GS 8A

und IFC 020 K und
IFC 020 F Meßumformer

Electrical connection

H1

mA meter, accuracy class

0.1, Ri < 500 Ω,
range 4-20 mA.
Electronic frequency
counter, input resistance
approx. 1 kΩ,
range 0-1 kHz, time basis
min. 1 second,
see connection diagrams
in Sect. 2.4.

A

a) Switch off power supply before starting work !

b) Unscrew the 4 recessed head screws (S1)

on the front plate (see Sect. 8.1, Fig. 1).

c) Carefully pull off plug-in unit from subassembly

support.

d) The electrical connection is on the X1 and X2

connectors at the rear hand side of the
IFC 020 E signal converter as shown in
connection diagram with cable M.

1,25

2,5

5

10

20

320

160

80

40

20

Y

P

D

L

H

7/6

Power supply

connection

Electrical connection

of mA meter and

electronic frequency

counter (see Sect. 2.4).

Electrical connection of IFC 020 E and GS 8A

Installation and operating instructions IFC 020

1) Switch on power supply, allow at least 15 minutes’ warm-up time. .

2) Set switch D (front panel of GS 8A) to “0” position.

3) Adjust zero to 0 or 4 mA with the 10-turn potentiometer P (front panel of GS 8A),
depending on setting in Fct. 1.05, deviation <±10 µA.

4) Calculate position of switch Y and displayed setpoints ”I“ and ”f“:

4.1) X =

Q

100%

x

K

GK

x

DN

2

Q

100%

full-scale range (100%) in volumetric unit V per unit time t
GK primary constant, see instrument nameplate
DN meter size DN im mm, not inches, see instrument nameplate
t time in seconds (Sec), minutes (min) or hours (hr)
V volumetric unit
K constant, according to following table

7/7

7.5.3 Check of setpoint display

t Sec min hr

V

Liter 25 464 424.4 7.074
m3 25 464 800 424 413 7 074
US gallons 96 396 1 607 26.78

4.2) Determine position of switch Y: Use table (front panel GS 8A) to determine value Y

which comes closest to factor X and meets condition Y ≤ X.

4.3) Calculate set

point reading ”I“ for current output: I = I0%+ Y(I

100%

- I0%) in mA

X

I

0%

current (0/4mA) at 0% flowrate

I

100%

current (20mA) at 100% flowrate

4.4) Calculate set

point reading ”f“ for pulse output: f =

Y

x

P

100%

in Hz

X

P

100%

pulses per second (Hz)
at 100% flowrate

5) Set switch D (front panel GS 8A) to position “+“ or “-“ (forward/ reverse flow).

6) Set switch Y (front panel GS 8A) to the value determined by the method described above.

7) Check setpoint readings I and f, see points 4.3 and 4.4 above.

8) Deviation <1.5% of setpoint. If greater, replace signal converter, see Sect. 8.4.

9) Test of linearity: set lower Y values, readings will drop in proportion to the calculated Y
values.

10) Switch off power supply after completing the test.

11) Disconnect the GS 8A.

12) Reassemble in reverse order, see points e) – b) under “electrical connection”,
see illustration in Sect. 8.1.

13) The system is ready for operation after the power supply has been switched on.

Exam

ple: see overleaf

Installation and operating instructions IFC 020

If you need to return your flowmeter to Krohne,

please refer to last but one page of these Instructions !

Full-scale range Q

100%

= 200 m3/hr (Fct. 1.01)
Meter size DN = 80 mm = 3“ (Fct. 3.02)
Current at Q

0%

I

0%

= 4 mA

Q

100%

I

100%

= 20 mA

}

(Fct. 1.05)

Pulses at Q

100%

P

100%

= 200 pulses/hr (Fct. 1.06)
Primary head constant GK = 3.571 (see nameplate)
Constant (V in m3)

(t in hr) K = 7074 (see Table)
(DN in mm)

Calculation of “ X ”

and position of “ Y ”

X =

Q

100%

x K

=

200 x 7074

= 61.905

GK x DN

2

3.571 x 80 x 80

Y = 40, position of switch Y, see front panel GS 8A
(comes closest to X value and is smaller than X).

Calculation of set

point readings I and f

I = I0%+Y(I

100%

- I0%) = 4 mA +

40

(20mA - 4mA) = 14.3 mA

X 61.905

Deviations are permissible between 14.1 and 14.6 mA

(equivalent to ± 1.5 %).

f = Yx P

100%

=

40

x 200 pulses / hr = 129.2 pulses/hr

X 61.905

Deviations are permissible between 127.3 and 131.1

pulses/hr (equivalent to ± 1.5 %).

7/8

Example 7.5.4

Installation and operating instructions IFC 020

8/1

Fig. A

Fig. B

Fig. C

Fig. D

Fig. E

Fig. F

Fig. G

8 Service

IFC 020 K IFC 020 F

8.1 Illustrations used for service work

Switch off power supply before starting service work!

Installation and operating instructions IFC 020

8/2

IFC 020 E

Switch off power supply before starting service work!

F

F

B

VB

Front plate / Display

B

VB

B Socket on display PCB
F Ribbon cable
VB Locking clip of socket B

Fig. 1 Fig. 2

Fig. 3

S1

S2

S2

S1

S3

S3

S4

S4

Installation and operating instructions IFC 020

8/3

8.2 Replacement of power supply fuse

Switch off power supply before opening the housing!

Power PCB Power supply Fuse F1

IFC 020 K and IFC 020 F for Section 8.3
Location and position of voltage selector

Rating Order No.

1. AC version 230/240 V AC 125 mA T 5.06627

115/117 V AC 200 mA T 5.05678

2. AC version 200 V AC 125 mA T 5.06627

100 V AC 200 mA T 5.05678

3. AC version 48 V AC 400 mA T 5.05892

24 V AC 800 mA T 5.08085

DC version 24.V DC

F 1

F 1

F 1

F 1

IFC 020 K and IFC 020 F

IFC 020 E

Refer to Sect. 8.1 for Figs. A and B.

1) Unscrew the 4 recessed head screws
(Fig. A), and remove transparent cover.

2) Unscrew the recessed head screw
(Fig. B) and remove the black plastic

cover.

3) Take out old and insert new power fuse
F1, on the left next to the green
connecting terminals.
Please refer to the following table for
fuse rating and order number.

4) Reassemble in reverse order,
points 2) – 1) above.

Refer to Sect. 8.1 for Figs. 1 and 2.

1) Unscrew the 4 recessed head
screws (S1), on the front (Fig. 1).

2) Carefully remove the plug-in unit from
the subassembly support.

3) Replace power fuse F1 back of
cassette(Fig. 2). Refer to the following
table for fuse rating and order number.

4) Reassemble in reverse order,
points 2) - 1) above.

IFC 020 E only

IFC 020 E only

Installation and operating instructions IFC 020

8/4

Changeover of operating voltage on AC Versions 1 and 2 8.3.

Switch off power source before opening the housing !

IFC 020 K and IFC 020 F

IFC 020 E

Refer to Sect. 8.1 for Figs. A to F.

1) Unscrew the 4 recessed head screws
(Fig. A), and remove transparent cover.

2) Unscrew the recessed head screw
(Fig. B) and remove the black plastic

cover.

3) Carefully pull out the green connecting
plugs (power supply and outputs)

(Fig. C).

4) Unscrew the 2 recessed head screws
(Fig. D) and remove the black metal

cover.

5) Carefully pull out the blue 9-pin
plug (connection to the primary head)

(Fig. D).

6) With a screwdriver, carefully remove
the 4 metal clips (Fig. E).

7) Remove the electronics unit

from the housing (Fig. F) and detach the
ground conductor.

8) Transpose voltage selector on the power
supply PCB (illustration in Sect. 8.8) to
obtain the required voltage according to
the table in Sect. 8.2.

9) Change power fuse F1, see table in
Sect. 8.2 for fuse ratings.

10) Reassemble in reverse order,
points 7) - 1) above.

Refer to Sect. 8.1 for Figs. 1 to 3.

1) Unscrew the 4 screws (S1),
on the front (Fig. 1).

2) Carefully remove the plug-in unit
from the subassembly support.

3) Unscrew the 4 recessed head screws
(S2) on the front (Fig.1).

4) Remove the ribbon cable from the
display unit. For that pull up the
securing clamp (Fig. 3).
Note down the position of the contact
side of the ribbon connector.

5) Unscrew the 4 recessed head screws on
the back (Fig.2) and carefully pull the
electronic unit out of the cassette,
together with the back.

6) Transpose the voltage selector on the
power PCB (see Fig. in Sect. 8.9) for the
desired voltage according to the decal
on the transformer.

7) Exchange power fuse F1.
Value see table in Sect. 8.2.

8) Reassemble in reverse order,
points 5) - 1) above.

Installation and operating instructions IFC 020

8/5

8.4 Replacement of electronics unit of signal converter

8.5 IFC 20 K and IFC 020 F: Cleaning the signal converter housing

Switch off power supply before cleaning the housing!

Clean the signal converter housing (made of polycarbonate, PC) with a cotton cloth dipped in
solvent-free mild agent only !

Switch off power source before opening the housing !

IFC 020 K and IFC 020 F

IFC 020 E

Refer to Sect. 8.1 for Figs. A to G.

1) Unscrew the 4 recessed head screws
(Fig. A), and remove transparent cover.

2) Unscrew the recessed head screw

(Fig. B) and remove the black plastic

cover.

3) Carefully pull out the green connecting

plugs (power supply and outputs,

Fig. C).

4) Unscrew the 2 recessed head screws

(Fig. D) and remove the black metal

cover.

5) Carefully pull off the blue 9-pin plug

(connection to the primary head)

(Fig. D).

6) With a screwdriver, carefully remove

the 4 metal clips (Fig. E).

7) Remove the electronics unit

from the housing (Fig. F) and detach the
ground conductor.

8) Carefully transpose DATAPROM (IC 13)

on the amplifier-PCB (see Fig. in Sect.

8.8) from the “old” and the “new”
electronic unit (Fig. G). Watch the
position of the IC 13 when putting it on.

9) Check the power supply and fuse F1 on

the new electronic unit and transpose /
replace if necessary according to
Sect. 8.3 nos. 8) and 9).

10) Reassemble in reverse order,

points 7) - 1) above.

Refer to Sect. 8.1 for Figs. 1 to 3.

1) Unscrew the 4 recessed head
screws (S1), on the front (Fig. 1).

2) Carefully remove the plug-in unit from the
subassembly support.

3) Unscrew the 4 recessed head screws
(S2) on the front (Fig.1).

4) Remove the ribbon cable from the
display unit. For that pull up the securing
clamp (Fig. 3). Note down the position of
the contact side of the ribbun connector.

5) Unscrew the 4 recessed head screws on
the back (Fig.2) and carefully pull the
electronic unit out of the cassette,
together with the back.

6) Carefully transpose DATAPROM (IC 13)
on the amplifier-PCB
(see Fig. in Sect. 8.9) from the “old”
and the “new” electronic unit .
Watch the position of the IC 13
when putting it on.

7) Check the power supply and fuse F1 on
the new electronic unit and transpose /
replace if necessary according to
Sect. 8.3 nos. 6) and 7).

8) Reassemble in reverse order,
points 5) - 1) above.

Installation and operating instructions IFC 020

8/6

IFC 020 K and IFC 020 F: Turning the display PCB 8.6

Switch off power supply before opening the housing!

For the illustrations A, B and D refer to Section 8.1.

1) Unscrew the 4 recessed head screws (Fig. A), and remove transparent cover from signal
converter housing

2) Unscrew recessed head screw (Fig. B), and remove black plastic cover.

3) Unscrew the 2 recessed head screws (Fig. D), and remove black metal cover.

4) Unscrew the 4 recessed head screws of display PCB.

5) Carefully turn display PCB.

6) Fold the ribbon cable as shown in the illustrations found under Section 8.7.
PLEASE NOTE! The ribbon cable must lie flat between display PCB and

amplifier PCB and must not exert any pressure on electronic components.

7) Reassemble in reverse order using point 1) to 4) referenced above.

Installation and operating instructions IFC 020

8/7

8.7 IFC 020 K and IFC 020 F: Directions for folding the ribbon cable on the display unit

A Socket X7 on amplifier PCB,

see Sect. 8.8

B Socket on display PCB
C Contact side
D Display
F Ribbon cable
I Insulated side
K 5 keys for operator control
R Reference point, power terminals
90° Bend cables 90° as shown

in drawing

Version 1 / Standard IFC 020 K/D

Compact flowmeter

Version 3/ Standard IFC 020 F/D

Separate version

Version 4

R

R

R

K

K

K

A

A

A

B

B

B

F

F

F

D

D

D

Version 2

R

K

A

B

F

D

R

A

F

C

F

Version 2 only

90°

90°

I

F

B

Display
board

Amplifier
board

Installation and operating instructions IFC 020

B) Power supply PCB,

AC versions

F1 Power fuse. Ratings

see Section 8.2 or
Chapter 9

SW Voltage selector for

changing the voltage
see Section 8.3

Tr Transformer

8/8

IFC 020 K and IFC 020 F: Illustrations of the PCBs 8.8

A) Amplifier PCB

IC 13 DATAPROM (sensor),

see Sect. 8.4.

S1, S3 for “empty tube”

cut-out, see Sect. 6.3.

S2, S4 not used
S6, S7 for blanking off the bus

lead, KROHNE RS
485 interface,
Sect.6.2.

X3 2-pin plug connector,

pin 7 and 8,
field power supply,
see Sect. 7.5.

X5 5-pin plug connector,

pin 1-5, signal cable,
see Sect. 7.5.

Tr

F1

SW

IC 13

X5

X3

7
8

1
2

3

S2

S1

S4

S3

4
5

S6

S7

Installation and operating instructions IFC 020

8/9

8.9 IFC 020 E: PCB illustrations

A) Amplifier PCB

IC 13 DATAPROM (Sensor)

See Section 8.4

S2, S3 For use of empty tube

cut-off

S4 See Section 6.3
S1 Not used
S6, S7 Used to blank off

electrical bus
of Krohne RS 485
Interface
See Section 6.2

B) Power supply PCB,

AC Versions

SW Voltage selector

For changing the
voltage see Section

8.3

Tr Transformer

Tr

X4

SW

S6X3S7

S3 S2

S4 S1

IC 13

Installation and operating instructions IFC 020

9/1

Order-numbers 9

Electronic unit

Power fuse F1

Power supply

Rating Order No. Fuse type

200 and 230 / 240 V AC 125 mA T 5.06627
100 and 115 / 117 V AC 200 mA T 5.05678 5 x20 G-fuse
48 V AC 400 mA T 5.05892 switching capacity 1500 A
24 V AC 800 mA T 5.08085
24 V DC in preperation

Power supply unit Power supply Order No.

IFC 020 K IFC 020 E
IFC 020 F

AC V

ersion 1 230 / 240 V AC 2.10989.01 2.11502.02

115 / 117 V AC

AC Version 2 200 V AC

100 V AC 2.10989.02 2.11502.01

Installation and operating instructions IFC 020

10.1

Full-scale range Q

100%

Part D Technical Data, Measuring Principle and

Block Diagram

10 Technical data

Full-scale ranges Q

100%

Flow rate Q = 100% 6 liter/h to 33 900 m3/h (0.03 - 156 000 US Gal/min), adjustable as

required, equivalent flow velocity 0.3 - 12 m/s (1 - 40 ft/s)

Unit m

3

/hr, Liter/Sec, US gallons/min. or user-defined unit,

e.g. Liter/day or US MGal/day

10/1

Meter size

DN

mm

inch

v = 0.3 m/s

(minimum)

v = 12 m/s

(maximum)

Full-scale range

Q

100%

in m3/h

v = 1 m/s

Flow tables

v = flow velocity in m/s

Meter size

DN

mm

inch

v = 1 ft/s

(minimum)

v = 40 ft/s

(maximum)

Q

100%

in US Gal/min

0002.5
0004
0006
0010
0015
0020
0025
0032
0040
0050
0065
0080
0100
0125
0150
0200
0250
0300
0400
0500
0600
0700
0800
0900

1000

00

1

/

10

001/

8

001/

4

003/

8

001/

2

003/

4

01
01

1

/

4

011/

2

02
02

1

/

2

03
04
05
06
08

10
12
16
20
24
28
32
36
40

0000.0245

0000.0383

0000.1530

0000.3735

0000.8405

0001.494

0002.334

0003.824

0005.979

0009.339

0015.78

0023.90

0037.35

0058.38

0084.05

0149.43

0233.4

0336.2

0597.9

0933.9

1345
1919
2507
3173
3917

000000.979

000001.530

000006.120

000014.93

000033.61

000059.75

000093.34

000153.0

000239.0

000373.5

000630.9

000955.6
001493
002334
003361
005975
009334
013442
023899
037345
053781
076760

100272
126904
156672

v = flow velocity in ft/s

0002.5
0004
0006
0010
0015
0020
0025
0032
0040
0050
0065
0080
0100
0125
0150
0200
0250
0300
0400
0500
0600
0700
0800
0900

1000
1200
1400
1600

00

1

/

10

001/

8

001/

4

003/

8

001/

2

003/

4

01
0-
01

1

/

2

02
0-
03
04
0-
06
08

10
12
16
20
24
28
32
36
40
48
56
64

000.0053

000.0136

000.0306

000.0849

000.1909

000.3393

000.5302

000.8686

001.358

002.121

003.584

005.429

008.483

013.26

019.09

033.93

053.02

076.35

0135.8

0212.1

0305.4

0415.6

0542.9

0662.8

0848.2

1221
1663
2171

00000.2121

00000.5429

00001.222

00003.392

00007.634

00013.57

00021.20

00034.74

00054.28

00084.82

00143.3

00217.1

00339.2

00530.1

00763.4
01357
02120
03053
05428
08482

12215
16625
21714
26510
33929
48858
66501
86859

0000.0177

0000.4520

0000.1018

0000.2827

0000.6362

0001.131

0001.767

0002.895

0004.524

0007.069

0011.95

0018.10

0028.27

0044.18

0063.62

0113.1

0176.7

0254.5

0452.4

0706.9

1018
1385
1810
2290
2827
4072
5542
7238

Installation and operating instructions IFC 020

Current output same error limits as above, additionally ± 10 µA

Reproducibility and
repeatability 0.1% of MV, minimum 1 mm/s / 0.04 inch/s at constant flow

External influences t

ypical values maximum values

Ambient temperature
Pulse output < 0.003% of MV (1) 0.015% of MV (1)
Current output < 0.013% of MV (1) 0.025% of MV (1)1
Power su

pply < 0.023% of MV 0.055% of MV at 10% variation

Load

< 0.013% of MV 0.025% of MV at max. permissible load,

see pages 6 and 7

(1) All Krohne signal converters undergo burn-in tests, duration minimum 20 hours at varying ambient temperatures

– 20 to + 60°C/– 4 to + 140°F. The tests are controlled by computers.

Error limits at reference conditions 10.2

Display, digital values, pulse output
F maximum error in % of measured value (not typical values)
v Flow velocity in m/s and ft/s

Reference conditions similar to EN 2

9104

Product water at 10 – 30°C/50 – 86°F

Electrical conductivity > 300 µS/cm

Power supply (rated voltage) U

N

(± 2%)
Ambient temperature 20 – 22°C/68 – 71.6°F
Warm-up time 60 min
Max. calibration equipment error

10x smaller than F

Inlet/outlet runs 10

x

DN/2 xDN (DN = meter size)

Primary head properly grounded and centered

Calibrated on EN 17025 accredited calibration equipment in direct volumetric comparsion.

10/2

Type/Meter size Maximum error in % of measured value (MV) ...

Curve

DN mm
DN 2.5 – 6

DN 2.5 – 6(1)

≥ DN 10

≥ DN 10

inch

1

/10” – 1/4”

DN 2.5 – 6(1)

≥

3

/8”

≥ DN 10

v ≥ 1 m/s / ≥ 3 ft/s
≤ ± 0.5% of MV

DN 2.5 – 6(1)

≤ ± 0.3% of MV

≥ DN 10

v < 1 m/s / < 3 ft/s
≤ ± (0.4% of MV + 1 mm/s)
≤ ± (0.4% of MV + 0.04 inch/s

≤ ± (0.2% of MV + 1 mm/s)
≤ ± (0.2% of MV + 0.04 inch/s)

B

D

A

E

per 1 K / 1.8°F temperature
variation

}

* IFS 6000 F (DN 2.5-4 and 1/10”-1/6”) additional error ±0.3% of MV

Installation and operating instructions IFC 020

10.3 IFC 020 signal converter

10/3

Versions with display / control elements HART®and RS 485 interfaces
IFC 020 K Compact version,converter directly mounted on the signal

converter version

IFC 020 F Seperate housing fieldversion
IFC 020 E Seperate housing, 19” Plug-in unit

Current output

Function – all operating data settable, galvanically isolated

Current: ranges 0 – 20 mA and 4 – 20 mA
Active mode max. 500 Ω load

Passive mode external voltage: 15 ... 20 V DC 20 ... 32 V DC

load: min. ... max. 0 ... 500 Ω 250 ... 750 Ω

Error identification 0 / 3.6 / 22 mA and variable

Forward/reverse flow measurment direction identified via status output

Pulse output

Function – all operating data settable, galvanically isolated

– digital pulse division, interpulse period non-uniform,

therefore if frequency and cycle meters connected
allow for minimum counting interval:

gate time, totalizer ≥

Pulse rate for Q=100% 10, 100 or 1000 pulses/sec.(=Hz), blocked or to your choice

per m3, Litre US Gallons or freely selectable unit.

Activ mode connection: electronic totalizers

voltage: approx. 15 V DC, from current output
load: I

max

< 23 mA, operation without current output

load: I

max

< 23 mA, operation with current output

Passive mode connection: electronic or electromechanical totalizers

voltage: external, U

ext

≤ 32 V DC/≤ 24 V AC

load: I

max

≤ 150 mA

Pulse width – 50, 100, 200 or 500 msec.,selectable at frequencies < 10Hz

–

symetric at

frequencies < 10Hz

Forward/reverse flow measurement flow direction identified via status output
Status output (passive)

Function settable as indicator for flow direction, errors or trip point

Connection voltage: external, U

ext

≤ 32 V DC/≤ 24 V AC

load current: I

max

≤ 150 mA

Control input (passive)
IFC 020 E only
Function – adjustable for totalizer reset, or reset setting

outputs to min. values

– initiate function by “low” or “high” control signals

Control signals U

max

: 24 V AC 32 V DC (any polarity)

low: ≤ 1,4 V ≤ 2 V
high: ≥ 3 V ≥ 4 V

Time constant 0.2 – 99.9 s, adjustable in increments of 0.1 second
Low-flow cutoff Cutoff “on” value: 1 – 19% of Q

100%

, adjustable

Cutoff “off” value: 2 – 20% in 1% increments

1000

P

100%

[Hz]

}

Installation and operating instructions IFC 020

10/4

Local display (D version) 3-field LCD
Display function actual flowrate, forward, reverse and sum totalizers

(7-digit), or 25-character bar graph with percentage
indication and status messages

Units: Actual flowrate m3/h, liter/s., US gallons/min or user-defined unit,

e. g. liters/day

Totalizer m3, liters, US gallons or user-defined unit,

e. g. hecto-liters or US gallons/day
(adjustable count duration up to overflow)

Language of plain texts English, German, French, others on request

Display: Top field 8-character, 7-segment numeral and sign display,

and symbols for key acknowledgement
Middle field 10-character, 14-segment text display
Bottom field 6 markers to identify display in measuring mode

Power supply

1. Rated voltage
Tolerance band

2. Rated voltage
Tolerance band

Frequency

Power consumption
(incl. primary head)

Housing

IFC 020 K / IFC 020 F
Materials Polyamid (PA) and die-cast aluminium
Protection category (IEC 529/EN 60 529) IP 67 equivalent to NEMA 6

Housing

IFC 020 E 19” plug-in unit acc. DIN 41494, 21TE wide,3HE high
Materials aluminium profile, galvanised sheet metal
Protection category (IEC 529/EN 60 529) IP 20

1. AC Version 2. AC Version DC Version

Standard Option Option

(not IFC 020 E) (for IFC 020 E in preparation)

230 / 240 V 200 V 24 V

200 – 260 V 170 – 220 V 18 – 32 V

115 / 120 V 100 V –

100 – 130 V 85 – 110 V –

48 – 63 Hz 48 – 63 Hz –

approx. 8 VA approx. 8 VA approx. 8 W

When connected to functional extra-low voltage, galvanic, safety separation (PELV)

is essential (to VDE 0100/VDE 0106 and IEC 364/IEC 536 or equivalent

national standard).

Installation and operating instructions IFC 020

10.4

IFC 020 and ZD dimensions and weights

IFC 020 F

weight approx. 3.8 kg / 8.4 lb

10/5

dia. 9

(0.35”)

27.5

(1.08”)

1 output cable (see Sect. 2.4)
2 signal cable of primary head

(see Sect. 1.3)

3 field power cable of primary head

(see Sect. 1.3)

4 power supply cable (see Sect. 1.2)
5 internal connection

(see Fig. in Sect. 8.8, plug connectors
X3 and X5)

116 (4.57”)

160 (6.30”)
144 (5.67”)

9 (0.35”)

dia. 9

(0.35”)

4

5

258 (10.16”)

220 (8.66”)

1

2

3

4

34 (1.34”)

120 (4.72”)

1

1

ZD Intermediate
connection box

Weight approx.

0.5 kg/1.1 lbs

dimensions in mm

(--) dimensions in inch

PG 16

1

/2” NPT

57 (4.02”)

22 (4.02”)

80

125 (4.92”)

68 (2.68”)

(3.15”)

Installation and operating instructions IFC 020

10/6

IFC 020 E

Dimensions (in mm)

Weight approx. 1.4 kg

Subassembly support 3 HE, assembly dimensions in compliance with DIN 41491, Part 5

Guiding rails

F-shaped multipole

connector, DIN 41612

X1 X2

Front plate thread bore hole
(M 2.5)

1 TE = 05.08 mm
1 HE = 44.17 mm

Multipole connector
attachment holes

Attachment plane
Multipole connectors

Attachment plane

Front plates

19” Subassembly support purchase order numbers

– Subassembly support

including guiding rails, pre-installed 2.07230

– Subassembly support fully installed
including IFC 020 E, 1.01643.01.00 (230 V)

multipole connectors plus solder points

1.01643.02.00 (115 V)

– Blind plates 2 TE 3.06660.00

3 TE 3.06738.00
5 TE 3.06739.00

8 TE 3.06740.00
14 TE 3.06741.00
21 TE 3.07590.00

– Special design of

multipole connectors X1 and X2:
Threaded terminal end 5.08400
Wire-Wrap (1 x 1) mm 5.08402
Termi-Point (0.8 x 1.6) mm 5.08403

Installation and operating instructions IFC 020

10.5 Instrument nameplates

Separate signal converter in rotatable field housing

10/7

Measuring range
Current output
Tag No.

Primary head constant
Pulse output

ALTOFLUX IFM 4080K /D/ /6
A94 9872 ISO Kl. E IP 67
DN50/2”-PFA- HC4 PN 40 Bar

Altometer

Q: 0-21.2 m

3

/h GK: 5.123

I: 0-20 mA R

i

≤ 0.5 kOhm P: 1000 p/s

Tag:

Holland

Insulation class

of field coils

Protection category

to IEC 529 / EN 60529

Flange pressure rating
or flange class

Electrode material

(see table)

Liner

(see table)

Meter size

DN in mm and
inch equivalent

Type designation

Serial No.

Magnetic field frequency

(here: 1/6 of power
frequency)

Abbreviations

Liner

AL Fused aluminium

oxide (99.7% Al2O3)
H Hard rubber
NE Neoprene
PFA Teflon®-PFA
PP Polypropylene
PUI Irethane
T Teflon®-PTFE
W Soft rubber

Electrode material

C conductive rubber compound
HB 2 Hastelloy B2
HC 4 Hastelloy C4
IN Incoloy
M4 Monel 400
Ni Nickel
PT Platinum
TA Tantalum
TI Titanium
V4A Stainless steel 1.4571 (SS 316 Ti)
xx /TC xx with conductive PTFE compound

(xx = base material, e.g. HC4)

Teflon®is a registered trademark of Du Pont

Compact flowmeters

ALTOFLUX IFC 090F /D/ /6
A96 6008

Altometer

Q: 0-150 m

3

/h GK: 2.706

I: 0-20 mA R

i

≤ 0.5 kOhm P: 1000 p/s

Tag: 98-FT-096

Holland

Measuring range
Current output
Tag No.

Primary head constant
Pulse output

Type designation

Serial No.

Magnetic field frequency

(here: 1/6 of power
supply frequency)

Installation and operating instructions IFC 020

11/1

Measuring principle

11

The flowmeter is designed for electrically conductive fluids.

Measurement is based on Faraday’s law of induction, according to which a voltage is induced in
an electrically conductive body which passes through a magnetic field. The following expression
is applicable to the voltage.:

U = K xB xv xD

where:
U = induced voltage
K = an instrument constant
B = magnetic field strength
v = mean velocity
D = pipe diameter

Thus the induced voltage is proportional to the mean flow
velocity, when the field strength is constant.

Inside the electromagnetic flowmeter, the fluid passes
through a magnetic field applied perpendicular to the
direction of flow. An electric voltage is induced by the
movement of the fluid (which must have a minimum
electrical conductivity). This is proportional to the mean
flow velocity and thus to the volume of flow. The induced
voltage signal is picked up by two electrodes which are in
conductive contact with the fluid and is transmitted to a
signal converter for a standardized output signal.

This method of measurement offers the following advantages:

1. No pressure loss through pipe constriction or protruding parts.

2. Since the magnetic field passes through the entire flow area, the signal represents a mean
value over the pipe cross-section; therefore, only relatively short straight inlet pipes
5

x

DN from the electrode axis are required upstream of the primary head.

3. Only the pipe liner and the electrodes are in contact with the fluid.

4. Already the original signal produced is an electrical voltage which is an exact linear function
of the mean flow velocity.

5. Measurement is independent of the flow profile and other properties of the fluid.

The magnetic field of the primary head is generated by a square wave current fed from signal
converter to the field coils.

This field current alternates between positive and negative values. Alternate positive and negative
flowrate-proportional signal voltages are generated at the same frequency by the effect of the
magnetic field, which is proportional to the current. The positive and negative voltages at the
primary head electrodes are subtracted from one another in the signal converter. Subtraction
always takes place when the field current has reached its stationary value, so that constant
interference voltages or external or fault voltages changing slowly in relation to the measuring
cycle are suppressed. Power line interference voltages coupled in the primary head or in the
connecting cables are similarly suppressed.

U

U

D

v

B

Installation and operating instructions IFC 020

12/1

12

Block diagram – signal converter

1 Input amplifier

n

overdrive-proof signal processing,
rapid and accurate

n

digital signal processing and sequence
control

n

patented, high-resolution A/D converter,
digitally controlled and monitored

n

high signal-to-noise ratio through low­loss field power supply

2 Field power supply

n

the low-loss field power supply
generates the pulsed, electronically
controlled DC current for the magnetic
coils of the primary head

n

the low-loss regulator reduces the power
take-off

n

high field current causes a high signal
level.

3 Current output

n

galvanically isolated from all other
groups

n

converts the digital output signal from the

µP 3 microprocessor into a proportional

current

n

HART

®

and RS 485-interfaces,

switchable

4 Binary outputs

n

galvanically isolated from other groups

n

selectable input/output combinations

n

pulse output, passive FET optocouplers
allow connection
of electronic and electromechanical
totalizers

n

status output, for limit value, error
identification, or flow direction
in forward/reverse flow mode (F/R)

5 Display/operator control unit

n

large-size illuminated LC display

n

3 keys for operator control of the signal
converter

n

connection to the internal IMoCom bus

6 IMoCom bus plug connector

n

for connection of external control and
test devices

7 External control input (IFC 020 E only)

n

reset of internal totalizer

n

zero setting of all outputs

The standard

n

high accuracy

n

practice oriented standard equipment

n

current and pule output (galvanically
isolated)

n

status output, adjustable for many tasks:
indicators for trip point, flow direction and
errors.

n

IMoCom-Bus suitable for many in- and
external tasks

n

simple, uniform KROHNE control outline

n

very lowpower consumption

n

HART

®

and RS 485-interfaces

Installation and operating instructions IFC 020

E1

Keyword Section No. Fct. No.

F

F = forward flow 4.4, 5.3, 5.14 1.04-1.07
F1, F2 = fuses 8.1, 8.5
Factory settings 3.2
Fatal error 4.5
FE = functional ground 1.2, 1.3.3, 1.3.5
Field power supply 5.12, 10.4, 12 3.02
Flow

– pulsating 6.4 3.06

– rapid changes 6.5
Flow direction 4.4, 5.1, 5.14 3.02
Flowrate, rapid changes 6.5
Flow rate (Q) 4.4, 5.1 3.02
Flow velocity v 4.4, 5.1 3.02
Frequency (pulse output)

– F

max

5.7 1.06, 3.07

– F

min

5.7 1.06, 3.07

Frequency output,

see pulse output P 2.3, 5.7 1.06, 3.07
Full-scale range Q

100%

4.4, 5.1, 5.14 1.01, 3.02
Function(s) 4.4
Function of keys 4.1-4.3
Functional checks 7.1 et seq.

– primary head 7.5
– setpoint display values 7.6
– system 7.4
– test full scale range 7.2 2.01

– zero 7.1 3.03
Functional ground FE 1.2, 1.3.3, 1.3.5
Functions column 4.1-4.3
Fuses (F . . . ) 8.1, 8.5

G

GK = primary (head) constant 4.4, 5.11 3.02
Grounding primary head 1.3.3
GS 8A = primary (head) simulator 7.6

H

Hand held bar magnet 4.2
Hand held terminal 6.2
Hardware information 7.3 2.02
HART 6.7
Hazardous duty areas (Ex) 6.1, page 0/4

I

I = current (analog) output 2.3, 5.6 1.05
IEC technical standards page 0/4
IMoCom bus (plug) 6.2, 8.9, 12
Initial start-up 3
Input (programming) 4.1 et seq.
Instrument nameplates 10.5
Interface RS 232 6.2, 10.4
Intermediate connection box (ZD) 1.3.5, 10.2
Internal electronic totalizer 2.4, 5.5, 5.7 1.04

K

Keys 4.1-4.3
Keystroke combinations for

– entry into setting level 4.1-4.3 3.04

– error cancellation 4.6

– quitting setting level 4.1-4.3

– totalizer reset 4.6

L

Language of display texts 5.10 3.01
LCD display, see display 4.2, 4.4, 5.4 1.04
Limit message 4.4, 5.8 1.07
Line voltage, see power supply
Low-flow cutoff (SMU) 4.4, 5.3 1.03

Keyword Section No. Fct. No.

A

Abbreviations 1.3.2, 1.3.4,

2.1, 4.4
Accuracies 10.3
ADC = analog-digital converter 4.5, 12
Ambient temperature 10.4
Application 5.19 3.06
Automatic range change (BA) 4.4, 5.18 1.06, 1.07

B

B1/B2 output/input terminals 2.1, 2.6, 5.16

3.07 (1.06, 1.07)
BA = automatic range change 4.4, 5.18 1.06, 1.07
Block diagram IFC 020 12
B version (basic) 4, 6.2, 8.4,10.4

C

C = control input 2.5, 2.6, 5.9 1.06, 1.07, 3.07
Cable length 1.3.4
Changeover, power supply 8.1
Characteristics of outputs 5.15
Clearing error messages 4.6
Coding for entry into

setting level 5.11 3.04
CONFIG software 6.2
Connecting & operating points

– front panel power supply 4.2

– PCB amplifier 8.9

– PCB power supply 8.9
Connection diagrams

– GS8A simulator 7.6

– Outputs/inputs 2.6

– Power supply 1.2, 1.3.5
Control input C

– connection 2.6 1.06, 1.07, 3.07

– description 2.5, 2.6, 5.9 1.06, 1.07, 3.07
Conversion factor

– Quantity (volume) 4.4 + 5.12 3.05

– Time 4.4 + 5.12 3.05
Current output I 2.2, 5.6 1.05
Cut-off “off” value (SMU OFF) 5.3 1.03
Cut-off “on” value (SMU ON) 5.3 1.03

D

Data 4.4
Data column 4.1-4-3
Data errors 4.5
Dimensions

– IFC 020 F 10.2

– ZD 10.2
Display 4.2, 5.4, 8.4 1.04
DN = meter size in mm 4.4 3.02
DS, signal cable A 1.3.1

E

EC = electronic totalizer 2.3, 2.6, 5.8 1.06
Electrical connection

– GS8A simulator 7.6

– outputs and inputs 2.6

– power supply 1.1, 1.3.5
Electromagnetic compatibility page 0/4
EMC = electromechanical totalizer 2.3, 2.6, 5.8 1.06
EN technical standards page 0/4
Error 4.5
Error list 4.5
Error (messages) 4.5

– cancel 4.5

– limits 10.3

– reset / delete 4.6
External range change 4.4, 5.18 1.06, 1.07
External totalizers 2.3, 2.6, 5.7 1.06

Index Part E

Installation and operating instructions IFC 020

E2

Keyword Section No. Fct. No.

S

S = Status output 2.4, 4.4, 5.8 1.06, 1.07, 3.07
Safety isolation 2.1
Setting level 4.1- 4.4 1.00 et seq.,

2.00 et seq.,

3.00 et seq.

Signal converter IFC 020

– accuracies 10.3
– cable A 1.3.1
– changeover, power supply 8.2
– connecting & operating points 4.2, 8.9
– connection to power 1.2
– functional checks 7.1-7.6,
– fuses, power 8.5
– mounting location 1.1
– nameplates 10.5
– operator control 4.1-4.3
– power consumption 10.4
– printed circuit boards 8.9
– spare parts 9

– technical data 10.1-10.4
Simulator GS 8A 7.6
SMU = low-flow cutoff 4.4, 5.3 1.03
Software 6.2
Spare parts, see order numbers 9
Status output S 2.4, 4.4, 5.8 1.06, 1.07, 3.07

T

T = time constant 5.2 1.02
Technical data

– accuracies 10.3

– dimensions & weights 10.2

– signal converter IFC 020 10.1-10.4
Terminals B1/B2 2.1, 2.6, 5.16

3.07 (1.06, 1.07)
Tests, see functional checks 7.1 et seq.
Time constant (T) 5.2 1.02
Totalizer (internal electronic) 2.3, 5.7 1.06, 3.07
Trip point 2.4, 2.6, 5.8 1.06, 1.07
Troubleshooting, see

functional checks 7.1 et seq.

U

Units for

– display 4.4, 5.4 1.04
– flow 4.4, 5.1 1.01
– P 4.4, 5.7 1.06

User-defined unit 4.4, 5.13 3.05

V

v = flow velocity 4.4, 5.1 3.02
VDE standards page 0/4

W

Weights, see dimensions 10.2

Z

Zero check (adjustment) 7.1 3.03
ZD, intermediate connection box 1.3.5, 10.2

Keyword Section No. Fct. No.

M

Magnetic field frequency 4.4 + 5.11 3.02
Magnetic sensors 4.2
Main menu column 4.1
Main menus 4.1 to 4.3 1.00, 2.00, 3.00
Mass flow measurement,

see user defined unit 4.4, 5.13
Measuring principle 11
Menu 4.1, 4.4
Meter size (DN) 4.4, 5.12 3.02

N

Numerical format, display 5.4, 5.5 1.04

O

Option = optional equipment 6.2, 10.4
Order numbers 9
Outputs

– characteristics 5.15

– connection diagrams 2.6

– setting 4.4

– – I 5.6 1.05

– – P 5.7, 5.16 1.06, 3.07

– – S 5.8, 5.16 1.06, 1.07, 3.07

– voltage stable when

measuring tube empty 6.3
Overflow, display 5.5 1.04
Overranged

– I (current output) 2.2, 2.6, 5.6, 5.8 1.06, 1.07
– P (pulse output) 2.3, 2.6, 5.7, 5.8 1.06, 1.07

Overvoltage class 2.1

P

P = pulse output 2.4, 4.4, 5.7 1.06
PCB = printed circuit boards 8.9
PC software 6.2
PE = protective conductor 1.2
Power supply (= line voltage)

– changeover 8.2
– connection 2.1, 10.4
– consumption 10.4
– failure 4.5, 7.4
– frequency 1.2, 10.4

– voltage 1.2, 10.4
Primary constant, see GK 4.4, 5.12 3.02
Primary head

– constant, see GK 4.4, 5.12 3.02

– simulator GS 8A 7.6

– testing 7.5
Primary simulator, see GS 8A 7.6
Printed circuit boards, see PCB 8.9
Program organization 4.1
Programming = input 4.1-4.3
Programming mode, entry into 4.1-4-3
Protective conductor PE 1.2
Pulsating flow 6.4, 6.5, 6.6 3.06
Pulse output P 2.3, 4.4, 5.7 1.06
Pulse width 4.4, 5.7 1.06
Pulses per unit time 4.4, 5.7 1.06
Pulses per unit volume 4.4, 5.7 1.06

Q

Q = flow rate 4.4, 5.1 1.01, 3.02
Q

100%

= full-scale range 4.4, 5.1 1.01, 3.02

R

R = reverse flow 4.4, 5.14 1.04-1.07
Range change

– automatic 2.5, 2.6, 1.06, 1.07

5.8, 5.18

– external 2.5, 2.6, 1.06, 1.07

5.9, 5.18
Range setting 4.4, 5.1, 5.12 1.01, 3.02
Replacement

– electronic unit 8.7

– power fuses 8.1
Reset totalizers 4.6
Reverse flow (R) 4.4, 5.14 1.04-1.07
Revert to

– functions column 4.1-4.3

– main menu column 4.1-4.3

– measuring mode 4.1-4.3

– submenu column 4.1-4.3
RS 232 interface 6.2

Installation and operating instructions IFC 020

E3

If you need to return flowmeters for testing

or repair to Krohne

SPECIMEN certificate

Your electromagnetic flowmeter

• has been carefully manufactured and tested by a company
with ISO 9001 certification

• and volumetrically calibrated in one of the world’s most
accurate test rigs.

If installed and operated in accordance with these operating
instructions, your flowmeter will rarely present any problems.

Should you nevertheless need to return a flowmeter for
checkout or repair, please pay strict attention to the following
points

:

Due to statutory regulations concerning protection of the envi­ronment and the health and safety of our personnel, Krohne
may only handle, test and repair returned flowmeters that
have been in contact with liquids if it is possible to do so with­out risk to personnel and environment. This means that
Krohne can only service your flowmeter if it is accompanied

by a certificate in line with the following model confirming that
the flowmeter is safe to handle.

If the flowmeter has been operated with toxic, caustic,
flammable or water-endangering liquids, you are kindly
requested

• to check and ensure, if necessary by rinsing or neutraliz­ing, that all cavities in the flowmeter are free from such
dangerous substances.
(Directions on how you can find out whether the primary
head has to be opened and then flushed out or neutralized
are obtainable from Krohne on request.)

• to enclose a certificate with the flowmeter confirming that
the flowmeter is safe to handle and stating the liquid used.

Krohne regret that they cannot service your flowmeter unless
accompanied by such a certificate.

Company: Address:

Department: Name:

Tel. No.:

The enclosed electromagnetic flowmeter

Type: Krohne Order No. or Series No.:

has been operated with the following liquid:

Because this liquid is

water-endangering * / toxic * / caustic * / flammable *

we have

– checked that all cavities in the flowmeter are free from such substances *

– flushed out and neutralized all cavities in the flowmeter *

(* delete if not applicable)

We confirm that there is no risk to man or environment through any residual liquid contained in this flowmeter.

Date: Signature:

Company stamp: