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Model lsb, 3 safety instructions for the operator / worker, 6 undue operation – Xylem LSB User Manual

Page 78: 7 explosion protection

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Installation, Operation and Maintenance Instruction

Model LSB

LSB 100-english

page 74

Revision 02

Artikel Nr. 771076129

Ausgabe 01/2010

Safety instructions attached directly to the pump resp.

unit must be followed under any circumstances.

Further they must be kept in good readable condition.
In the same way, as these Operating Instructions
of the pump, all possibly attached Operating
Instructions of accessories (e.g. motor) must be
noticed and kept available.

2.2 Dangers of non-observance of the
Safety Instructions

Non-observance of the Safety Instructions can
lead to loss of any claim for damages.

Further, non-observance can lead to following risks:

Failure of important functions of the machine or

facility.

Failure of electronic appliances and measuring

instruments by magnetic fields.

Endangering of persons and their personal

property by magnetic fields.

Endangering of persons by electric, mechanic and

chemical influences.

Endangering of environment through leakage of

dangerous substances.

On application of the unit in areas endangered

to explosion special attention must be paid to

sections marked with Ex.

2.3 Safety Instructions for the Operator /
Worker

Depending on the operating conditions, wear and

tear, corrosion or age will limit the working life of

the

pump/pump

unit, and its specified

characteristics. The operator must ensure that

regular inspection and maintenance are carried

out so that all parts are replaced in good time,

which would otherwise endanger the safe

operation of the system. If abnormal operation or

any damage are observed, the pump must cease

operation immediately.

If the breakdown or failure of any system or unit

could lead to people being hurt or property being

damaged, such system or unit must be provided

with alarm devices and/or spare modules, and

they should be tested regularly to ensure that they

function properly.

If there is any risk of injury from hot or cold

machine parts, these parts must be protected

against contact by the user, or suitable warning

signs must be affixed.

Contact protection on moving parts (e.g. coupling

guards) must not be removed from systems that

are in operation.

If the sound level of a pump or pump unit is above

85 dB(A) an ear protection has to be used when

staying near the pump for some time.

If dangerous media (e.g. explosive, toxic, hot) leak

out (e.g. from shaft seals), these must be directed

away so that there is no danger to people or the

environment. The provisions of the law must be

observed.

Measures should be taken to exclude any danger

from electricity (e.g. by complying with the local

regulations on electrical equipment). If work is

carried out on live electrical components, they

should be unplugged from the mains or the main

switch turned off and fuse unscrewed. A motor

protection switch is to be provided.

2.4 Safety Instructions for Maintenance,
Inspections and Mounting Work

The operator is responsible that any maintenance,

inspections and mounting work is made by

authorized competent personnel, which must be

informed by having read the Operating

Instructions.

Basically, all work on the pump or pump unit

should only be carried out when the pump is

stationary and not under pressure. All parts must

be allowed to return to ambient temperature.

Make sure that no-one can start the motor during

such work. It is essential that the procedure for

stopping the system described in the Operating

Instructions is observed. Pumps or pump systems

that carry media that are dangerous to health must

be decontaminated before being taken apart.

Safety Data Sheets for the various liquids handled.

Immediately after finishing work, all safety and

protective devices must be replaced or restarted.

2.5 Unauthorized Alteration and Spare
Parts Production

Alteration or changes of the machine are permitted

after agreement with the manufacturer.

Original spare parts and accessory authorized by the

manufacturer are serving the safety.

The use of other parts can lead to loss of liability for

therefrom resulting consequences.

2.6 Undue Operation

The operating safety of the delivered machine can

only be guaranteed by designated use acc. to the

following chapters of the Operating Instructions.

The limits stated in the data sheet and / or order

confirmation must not be exceeded under any

circumstances.

2.7 Explosion Protection

On application of units in areas endangered to

explosion measures and references in the chapters

2.7.1 to 2.7.6 must be observed, so that explosion

protection is guaranteed.

2.7.1 Filling of unit

During operation of the pump the system of the

suction and pressure pipe and the pump itself

must permanently be filled with the pumped

liquid.

Thus, no explosive atmosphere can develop

and the danger of dry-run is avoided.