User Guide IM/4234500 Rev. G

4234 500 & 4234 501Intrinsically Safe Power Supply Unit

The CompanyWe are an established world force in the design and manufacture of measurement products for industrial process control, flow measurement, gas and liquid analysis and environmental applications.

As a part of ABB, a world leader in process automation technology, we offer customers application expertise, service and support worldwide.

We are committed to teamwork, high quality manufacturing, advanced technology and unrivalled service and support.

The quality, accuracy and performance of the Company’s products result from over 100 years experience, combined with a continuous program of innovative design and development to incorporate the latest technology.

EN ISO 9001:2008

Cert. No. Q 05907

EN 29001 (ISO 9001)

Lenno, Italy – Cert. No. 9/90A

Stonehouse, U.K.

Electrical SafetyThis equipment complies with the requirements of CEI/IEC 61010-1:2010 'Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use'. If the equipment is used in a manner NOT specified by the Company, the protection provided by the equipment may be impaired.

SymbolsOne or more of the following symbols may appear on the equipment labelling:

Warning – Refer to the manual for instructions Direct current supply only

Caution – Risk of electric shock Alternating current supply only

Protective earth (ground) terminal Both direct and alternating current supply

Earth (ground) terminalThe equipment is protected through double insulation

Information in this manual is intended only to assist our customers in the efficient operation of our equipment. Use of this manual for any other purpose is specifically prohibited and its contents are not to be reproduced in full or part without prior approval of the Technical Publications Department.

Health and Safety

To ensure that our products are safe and without risk to health, the following points must be noted:

1. The relevant sections of these instructions must be read carefully before proceeding.

2. Warning labels on containers and packages must be observed.

3. Installation, operation, maintenance and servicing must only be carried out by suitably trained personnel and in accordance with the information given.

4. Normal safety precautions must be taken to avoid the possibility of an accident occurring when operating in conditions of high pressure and/or temperature.

5. Chemicals must be stored away from heat, protected from temperature extremes and powders kept dry. Normal safe handling procedures must be used.

6. When disposing of chemicals ensure that no two chemicals are mixed.

Safety advice concerning the use of the equipment described in this manual or any relevant hazard data sheets (where applicable) may be obtained from the Company address on the back cover, together with servicing and spares information.

1

1 INTRODUCTION .................................................... 11.1 General ................................................................. 11.2 Description ............................................................ 1

2 SPECIFICATION .................................................... 2

3 MECHANICAL INSTALLATION.............................. 3

4 ELECTRICAL INSTALLATION ............................... 44.1 Interconnection Diagrams and Cable

Requirements ..................................................... 44.2 Accessing the PSU Terminals ............................... 84.3 Electrical Connections .......................................... 8

5 SERVICING ............................................................ 95.1 Safety and Certification ......................................... 95.2 Cleaning ................................................................ 95.3 Replacing Fuses ................................................... 9

NOTES ....................................................................... 10

CONTENTS

TB1

T1

L N EF2 F3

Warning. Hazardous Voltages.There are no servicable parts in this unit.Return to the manufacturer if faulty or seekthe services of a qualified engineer.

Switch off the mains supply and disconnectit before removing the cover for any reason.

6

8

10

230

230V 115V

V

115 V

Output Current (mA) Links350 C to X250 D to X180 E to X

NO connections should be made topoints A or B

TB2

–

+

F1

BA

C X

D E

M5 Earth Stud Voltage Links

Cable Gland forAC Mains Input(Gray)

OutputCurrentLinks

Cable GlandNot Used(Gray)

Cable Gland forDC Output toKatharometer(Blue)

Mains InputTerminal Block

DC OutputTerminal Block

Fuses

.

1 INTRODUCTION

1.1 GeneralThis instruction manual describes the installation and operationof the 4234 Series Power Supply Unit (PSU), designed toprovide a stabilised (optional 350, 250 or 180 mA) DC supply foroperation of a single katharometer unit installed in a hazardousarea. This PSU is certified as iIntrinsically Safe ATEX II (1)G[Ex ia Ga] IIC (–20°C ≤Ta≤ +55°C) certificate number BAS 01ATEX 7041 and must be installed in the safe area.

Additionally, this PSU can be installed as a replacement for004234 000/01/02 PSUs in systems that are covered byBASEEFA Certificate NOS Ex 77138 and Ex 76181, undervariations for those certificates.

1.2 Description – Fig. 1.1The PSU is available in two separate versions defined in Section 2.

The unit is housed in a metal case fitted with mounting lugs.Cable gland entries are provided at opposite ends of the case forsupply voltage input and intrinsically safe output cablesrespectively.

A printed circuit board (PCB) assembly (see Fig. 1.1) contains thecircuit components. The supply voltage input is connected toterminal block (TB1) located on the PCB, adjacent to the fusesF2 and F3. The intrinsically safe constant current output terminalblock (TB2) is located on the gland assembly at the opposite endof the assembly. The PCB is mounted on a steel chassis andsecured by six screws. The cover is perforated to allowventilation for cooling.

Note. The PSU has NO serviceable parts.

Two identical fuses (L & N) are mounted within the unit on themains input. A third fuse is connected in the DC line circuit of thetransformer. The L & N fuses are a high breaking capacity typeand must only be replaced with identical types. See Section 2 forrating.

Fig. 1.1 Location of Internal Component

2

4234-500 and 4234-501Power supply

Series 4234-501 115V AC 50/60Hz

Series 4234-500 230V AC 50/60Hz

Supply limits

Voltage variation ±15%

Frequency range 46 to 64Hz

Power consumption

30 W Max.

Fuse ratings

L & N (F2 and F3) 250mA (T) (20 x 5mm) 250VA,1500A h.b.c. catrridge type

DC line (F1) 400mA (F) (250V AC)

Load

One katharometer (12.5Ω max.)plus interconnecting cable (1.5Ω max.)

OutputOutput

180, 250 or 350mA DC (constant current)

Output regulation

Within ±0.8% for:

a) Load variation ±15%b) Supply variation ±6%c) Ambient temperature ±10°C (50°F)

Ripple

Less than 17.5V across 10Ω load peak to peak

Output stability

Within ±0.7% of initial setting over a period of one month with loadresistance, supply voltage and ambient temperature at nominalstated values

Maximum load

12.5Ω (one Katharometer)

EnvironmentalProtection

IP30 (NEMA 1)

Ambient temperature range

–20 to 55°C (–4 to 131°F)

Mounting centres

140mm x 110mm (5.5 x 4.3 in.)

Overall dimensions

170mm high x 160mm width x 110mm depth(6.7 in. high x 6.3 in. width x 4.3 in. depth)

Weight

2.12kg (0.96 lb) approx.

IS certification

[Ex ia Ga] IIC (–20°C ≤Ta≤ +55°C)

BASEEFA Certificate No. BAS01 ATEX7041

2 SPECIFICATION

DS/4234-EN Rev. E

3

The PSU must be mounted in a clean, dry, well ventilated position (on a wall or panel) in the safe area by means of the four fixing lugs.Fig. 3.1 gives dimensions and fixing details for the unit.

Before commencing installation, check that the unit supplied is suitable for the supply voltage available – see Section 2 and the dataplate on the unit cover, Fig. 3.2.

Fig. 3.1 PSU Dimensions

Fig. 3.2 Typical Identification Labels and locations

3 MECHANICAL INSTALLATION

An adaptor kit (part number 4234 519) is available for mounting the4234 500/501 PSU in place of the 004234 000/01/02 PSU.

140

(5.5

) Cen

ters

110 (4.33) Centers

170 (6.7) 111 (4.37)

120

(4.7

2)All Holes Ø7.0 (0.28)

160

(6.3

)

83

20 (0.79)

30(1

.18)

60 (2

.36)

Cen

ters

Ensure a clearance of at least 100 (4) atboth ends of the unit for acces to the cableglands and to minimize cable bends.

Mains CableEntry (Gray)

Not Used(Gray)

Output toKatharometer

3.0 (0.12)

20 (0.79)

30(1

.18)

30(1.18)

(Blue)

IntrinsicSafety Label

ABB LimitedOldends Lane, Stonehouse,Glos. England GL10 3TA

TYPE 4234500/501 POWER SUPPLY UNITS

ll (1)G

[Ex ia Ga] llC (–20ºC ≤ Ta ≤ +55ºC)

BAS 01 ATEX 7041

Ex1180

ABB L i m i t e dOldends Lane, Stonehouse,Glos. England GL10 3TA

CodeSerial NoVoltage Freq.: 50/60HzWattsYear Manuf.Manufactured by: N4006

✔

4

4.1 Interconnection Diagrams and CableRequirements

Warning.• The mains supply to the equipment must be able to

isolate the equipment independently. For example,use a switched spur or a mains isolator correctlyrated according to the regulations of the country inwhich the equipment is being used.

• The means of isolation must be located as close tothe equipment as possible and must not beobstructed.

• The switch or isolator must be clearly marked.

Note. Ensure all connections are made in accordance withlocal and/or national regulations.

Figs 4.1, 4.2 and 4.3 show the interconnections for intrinsicallysafe gas analysis systems. Use wiring rated to 75 °C (167 °F)minimum only. It is important to ensure that the connectionsbetween system components conform to the requirements ofEN60079-14.

The interconnecting cable between the PSU and the katharometeris subject to a stringent limitation imposed by the intrinsic safetyrequirements. Figs 4.1, 4.2 and 4.3 outline the requirements for theoverall system.

The inductance/resistance ratio of the cable used to carry thestabilised DC constant current (mA) supply into the hazardousarea must not exceed the maximum for the relevant atmosphereclassification as specified in Figs 4.1, 4.2 and 4.3.

The choice of wiring cable is restricted due to the limitationsimposed by the certification parameters – see Notes 2a, b and cin Figs 4.1, 4.2 and 4.3.

It should be further noted that the resistance of thisinterconnecting cable should be kept to a minimum and mustnot exceed 1.5 Ω. This limits the maximum cable lengthbetween a katharometer and its associated power supply unit.

Single sheathed conducting cables must be tightly twistedtogether to reduce their mutual inductance and laid separatelyfrom cables carrying ‘safe area’ connections.

The only requirement in respect of intrinsic safety for the cableused to connect the AC supply voltage to the PSU is that itshould NOT be routed with the intrinsically safe constant current(mA) stabilised supply output cable.

It should be noted that the cable glands will accept a cablebetween 5 to 9mm in diameter.

4 ELECTRICAL INSTALLATION

5

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Ass

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…4 ELECTRICAL INSTALLATION

Saf

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rea

Not

e 1

App

arat

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afe

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or

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The

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ay b

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’m

ultic

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def

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in E

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: 200

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28 (l

ates

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with

in a

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ultic

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a ty

pe ‘B

’ mul

ticor

e ca

ble

mus

t not

exc

eed

60 v

olts

.

Not

e 4

The

inst

alla

tion

mus

t com

ply

with

nat

iona

l req

uire

men

ts (e

.g. i

n th

e U

K E

N60

079-

14 (l

ates

t edi

tion)

).

Not

e 5

The

syst

em m

ust b

e m

arke

d w

ith a

dur

able

labe

l. Th

e la

bel s

houl

d ap

pear

on

or a

djac

ent t

o th

e pr

inci

pal

item

of e

lect

rical

app

arat

us in

the

syst

em o

r at

the

inte

rface

bet

wee

n th

e in

trin

sica

lly s

afe

and

non-

intr

insi

cally

saf

e ci

rcui

ts.

This

mar

king

sha

ll in

clud

e th

e w

ord

SY

ST

or S

YS

TEM

, e.g

.‘B

AS

SY

STE

M N

o E

x 01

E20

44’ o

r ‘B

AS

No

Ex

01E

2044

SY

ST’

Not

e 6

A ju

nctio

n bo

x, if

use

d, m

ust s

atis

fy th

e re

quire

men

ts o

f Cla

uses

6.1

and

6.3

.1 o

f EN

6007

9-11

(lat

est e

ditio

n).

Zene

r D

iode

Saf

ety

Bar

rier

MTL

775

5ac

BA

S 0

1 AT

EX

7217

Saf

e A

rea

App

arat

us(s

ee N

ote

1)

Not

e 2a

The

capa

cita

nce

and

eith

er th

e in

duct

ance

or

the

indu

ctan

ce to

resi

stan

ce (L

/R) r

atio

of t

he c

able

conn

ecte

d be

twee

n th

e +

and

– te

rmin

als

of th

e po

wer

sup

ply

Type

423

4500

/501

and

term

inal

s 1

and

4 of

a k

atha

rom

eter

Typ

e 00

65XX

mus

t not

exc

eed

the

follo

win

g va

lues

:

PO

WE

R S

UP

PLY

TYP

E 4

234

500/

501

CE

RTI

FIE

D [E

x ia

Ga]

IIC

(–20

°C≤

Ta ≤

+55

°C)

CE

RTI

FIC

ATE

No

BA

S 0

1 AT

EX

7041

- +4

–1+ 3

–

2+

KAT

HA

RO

ME

TER

TYP

E 0

065X

XX

CE

RTI

FIE

D E

x ia

IIC

T4

Ga

CE

RTI

FIC

ATE

No

BA

S 0

1 AT

EX

1042

(–20

ºC ≤

Ta

≤ +

55ºC

)

and

IEC

Ex

BA

S 0

4.00

25

7

Fig

. 4.3

PS

U in

Ass

oci

atio

n w

ith

a K

atha

r om

eter

and

Oth

er S

afe

Are

a A

pp

arat

us w

ith

Two

Zen

er D

iod

e B

arri

ers

4 ELECTRICAL INSTALLATION…

Saf

e A

rea

Not

e 1

App

arat

us w

hich

is u

nspe

cifie

d ex

cept

that

it m

ust n

ot b

e su

pplie

d fro

m n

or c

onta

in in

nor

mal

or a

bnor

mal

con

ditio

ns a

sou

rce

of p

oten

tial w

ith re

spec

t to

eart

h in

exc

ess

of 2

50 v

olts

RM

Sor

250

vol

ts D

CN

ote

2aTh

e ca

paci

tanc

e an

d ei

ther

the

indu

ctan

ce o

r th

e in

duct

ance

to re

sist

ance

(L/R

) rat

io o

f the

cabl

e co

nnec

ted

betw

een

the

+ a

nd –

term

inal

s of

the

pow

er s

uppl

y Ty

pe 4

2345

00/5

01 a

ndte

rmin

als

1 a

nd 4

of a

kat

haro

met

er T

ype

0065

XX m

ust n

ot e

xcee

d th

e fo

llow

ing

valu

es:

Haz

ard

ous

Are

a

See

Not

e 1

Junc

tion

boxe

s (if

requ

ired)

see

not

e 6.

Loca

tion:

Haz

ardo

us o

r S

afe

Are

a

Gro

upC

apac

itanc

ein

μF

Indu

ctan

cein

mH

L/R

rat

ioin

μH

/Ohm

IIC IIB IIA

7.63

113

999

0.05

0.14

0.37

22 88 177

or

Gro

upC

apac

itanc

ein

μF

Indu

ctan

cein

mH

L/R

rat

ioin

μH

/Ohm

IIC IIB IIA

40 999

999

0.05

0.16

0.43

52 210

421

or

See

Not

es 2

& 3

2a 2b

Not

e 3

The

cabl

e m

ay b

e se

para

te c

able

s or

may

be

inst

alle

d as

sep

arat

e ci

rcui

ts w

ithin

a ty

pe ‘A

’ or

a ty

pe ‘B

’m

ultic

ore

cabl

e as

def

ined

in E

N60

079

- 14

: 200

8, 1

2.2.

28 (l

ates

t edi

tion)

sub

ject

to th

e fo

llow

ing:

a.E

ach

circ

uit s

hall

be in

divi

dual

ly s

cree

ned

with

in a

type

‘A’ m

ultic

ore

cabl

e.b.

The

peak

vol

tage

of a

ny o

ther

circ

uit w

ithin

a ty

pe ‘B

’ mul

ticor

e ca

ble

mus

t not

exc

eed

60 v

olts

.

Not

e 4

The

inst

alla

tion

mus

t com

ply

with

nat

iona

l req

uire

men

ts (e

.g. i

n th

e U

K E

N60

079-

14: (

late

st e

ditio

n)).

Not

e 5

The

syst

em m

ust b

e m

arke

d w

ith a

dur

able

labe

l. Th

e la

bel s

houl

d ap

pear

on

or a

djac

ent t

o th

e pr

inci

pal

item

of e

lect

rical

app

arat

us in

the

syst

em o

r at

the

inte

rface

bet

wee

n th

e in

trin

sica

lly s

afe

and

non-

intr

insi

cally

saf

e ci

rcui

ts.

This

mar

king

sha

ll in

clud

e th

e w

ord

SY

ST

or S

YS

TEM

, e.g

.‘B

AS

SY

STE

M N

o E

x 01

E20

44’ o

r ‘B

AS

No

Ex

01E

2044

SY

ST’

Not

e 6

A ju

nctio

n bo

x, if

use

d, m

ust s

atis

fy th

e re

quire

men

ts o

f Cla

uses

6.1

and

6.3

.1 o

f EN

6007

9-11

(lat

est e

ditio

n).

23

14

23

14

B1

B2

Saf

e A

rea

App

arat

us(s

ee N

ote

1)Ze

ner

Dio

de S

afet

y B

arrie

rsM

TL 7

755a

cB

AS

99

ATE

X 72

17

Not

e 2b

The

capa

cita

nce

and

eith

er th

e in

duct

ance

or t

he in

duct

ance

to re

sist

ance

(L/R

) rat

io o

f the

cab

leco

nnec

ted

betw

een

3 &

4 o

f an

MTL

775

5ac

zene

r di

ode

safe

ty b

arrie

r pl

us te

rmin

als

3 o

f ase

cond

MTL

775

5ac

zene

r di

ode

safe

ty a

nd te

rmin

als

barr

ier

2, 3

& 6

of a

kat

haro

met

er T

ype

0065

XX, m

ust n

ot e

xcee

d th

e fo

llow

ing

valu

es:

PO

WE

R S

UP

PLY

TYP

E 4

234

500/

501

CE

RTI

FIE

D [E

x ia

Ga]

IIC

(–20

°C≤

Ta ≤

+55

°C)

CE

RTI

FIC

ATE

No

BA

S 0

1 AT

EX

7041

- +4

–1+ 9 10 3

–

2+

KAT

HA

RO

ME

TER

TYP

E 0

065X

XX

CE

RTI

FIE

D E

x ia

IIC

T4

Ga

CE

RTI

FIC

ATE

No

BA

S 0

1 AT

EX

1042

(–20

ºC ≤

Ta

≤ +

55ºC

)

and

IEC

Ex

BA

S 0

4.00

25

8

To gain access, remove the fourscrews and lift off the cover.

Fig. 4.4 PSU Cover Removal

TB1

T1

F2 F3

6

8

10

230V

115V

L N E

115V ACor

230V ACSupply

See Caution opposite

Tighten Cable Gland(Gray)

M5 Earth Stud

Fig. 4.6 Connecting the DC Output

Fig. 4.5 Connecting to AC Supply

…4 ELECTRICAL INSTALLATION

To Katharometer(see manual fortermination details)

Tighten Cable Gland (Blue)

TB2

–

+

F1

BA

C X

D E

Cable Gland(Gray – not used)

DC OutputTerminal Block

Cable Clamp

Output Current (mA) Links350 C to X250 D to X180 E to X

NO connections should be made topoints A or B

Current Output Link

Red

Black

4.3 Electrical ConnectionsThe mains terminal block, TB1, is situated next to the transformer,T1, and fuses, F2 and F3.

Connect the AC mains input cable as in Fig. 4.5.

Note. Earth bonding to be made via M5 Earth Stud.

Connect the DC output cable as in Fig. 4.6.

4.2 Accessing the PSU Terminals

Warning. If the PSU is cubicle mounted or has its coverremoved for test purposes, AC mains supply voltage isexposed at certain locations within the assembly whensupplies are connected. Thus, there is a risk ofelectrocution.

All normal precautions must be taken to avoid the risk ofaccidental electrical shock during installation andmaintenance of the equipment. Ensure that the supplycable is disconnected at its source before touching anyelectrical connections.

Caution. Ensure that the correct version of the unit hasbeen supplied for the supply voltage available. A 115V unitcannot be used with a 230V supply or vice versa.

Check that the current output meets the katharometer inputrequirements (see katharometer data label) – see Fig. 4.6. Ifin doubt contact ABB.

Remove the power supply unit cover to obtain access to theseparate labelled terminal blocks – see Fig. 4.4.

9

5 SERVICING

Fig. 5.1 Changing Fuses

TB1

T1

F2 F3

6

8

10

230 V

115 V

L N E

Switch off and disconnectthe mains supply

1

2 Remove the four screws and lift offthe cover.

Replace fuse(s)3

TB2

–

+

F1

BA

C X

D E

4 Replace cover, connect to mains power sourceand switch on.

Red

Black

230V 115V

Voltage Links

5.1 Safety and CertificationModel 4234500 and 4234501 PSUs have been certifiedintrinsically safe to the requirements of:

ATEX Directive 9/94/EC[Ex ia Ga] IIC (–20°C ≤Ta≤ +55°C)Cert. BAS 01 ATEX 7041

and MUST be sited in the safe area.

Warning. Interference with any unit or its componentsimplies acceptance by that person of responsibility forensuring that intrinsic safety continues to be maintained.

Unauthorised repair or incorrect assembly may render anyunit unfit for use in an intrinsically safe system.

If the equipment is used in a manner not specified by themanfacturer, the protection provided by the equipment maybe impaired.

To ensure that this standard of safety is maintained in operationit is essential that any servicing or similar work on the unit shall beperformed only by suitably trained personnel in possession of allnecessary information and a knowledge of the relevantstandards applicable.

There are no serviceable components in these PSUs other thanto replace the fuses. These fuses must be replaced only withthose stated in the specification. If a fault occurs the PSU shouldbe returned to the nearest ABB Service Centre, or returned tothe factory for repair.

5.2 Cleaning

Warning. Switch off the PSU prior to cleaning.

Use only a dry or damp cloth to clean the exterior of the PSU. Donot use water or any solvents.

Caution. Use only ABB fuses part numbers:F1 ............ 0231555 (F) (400mA cartridge)F2 & F3.... 0231577 (T) (250mA 1500A HBC

cartridge)

5.3 Replacing Fuses – Fig. 5.1

10

NOTES

11

NOTES...

12

...NOTES

Products and customer supportAutomation SystemsFor the following industries:— Chemical & Pharmaceutical— Food & Beverage— Manufacturing— Metals and Minerals— Oil, Gas & Petrochemical— Pulp and Paper

Drives and Motors— AC and DC Drives, AC and DC Machines, AC Motors to

1kV— Drive Systems— Force Measurement— Servo Drives

Controllers & Recorders— Single and Multi-loop Controllers— Circular Chart and Strip Chart Recorders— Paperless Recorders— Process Indicators

Flexible Automation— Industrial Robots and Robot Systems

Flow Measurement— Electromagnetic Flowmeters— Mass Flowmeters— Turbine Flowmeters— Wedge Flow Elements

Marine Systems & Turbochargers— Electrical Systems— Marine Equipment— Offshore Retrofit and Refurbishment

Process Analytics— Process Gas Analysis— Systems Integration

Transmitters— Pressure— Temperature— Level— Interface Modules

Valves, Actuators and Positioners— Control Valves— Actuators— Positioners

Water, Gas & Industrial Analytics Instrumentation— pH, Conductivity and Dissolved Oxygen Transmitters and

Sensors— Ammonia, Nitrate, Phosphate, Silica, Sodium, Chloride,

Fluoride, Dissolved Oxygen and Hydrazine Analyzers— Zirconia Oxygen Analyzers, Katharometers, Hydrogen

Purity and Purge-gas Monitors, Thermal Conductivity

Customer supportWe provide a comprehensive after sales service via a Worldwide Service Organization. Contact one of the following offices for details on your nearest Service and Repair Centre.

UKABB LimitedTel: +44 (0)1453 826661Fax: +44 (0)1453 829671

USAABB Inc.Tel: +1 215 674 6000Fax: +1 215 674 7183

Client WarrantyPrior to installation, the equipment referred to in this manual must be stored in a clean, dry environment, in accordance with the Company's published specification.Periodic checks must be made on the equipment's condition. In the event of a failure under warranty, the following documentation must be provided as substantiation:— A listing evidencing process operation and alarm logs

at time of failure.— Copies of all storage, installation, operating and

maintenance records relating to the alleged faulty unit.

Contact us

IM/4

2345

00 R

ev. G

04.2

016ABB Limited

Process AutomationOldends LaneStonehouseGloucestershire GL10 3TAUKTel: +44 1453 826 661Fax: +44 1453 829 671

ABB Inc.Process Automation125 E. County Line RoadWarminsterPA 18974USATel: +1 215 674 6000Fax: +1 215 674 7183

www.abb.com

NoteWe reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB does not accept any responsibility whatsoever for potential errors or possible lack of information in this document.

We reserve all rights in this document and in the subject matter and illustrations contained therein. Any reproduction, disclosure to third parties or utilization of its contents in whole or in parts – is forbidden without prior written consent of ABB.

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