Earth Connection; Behaviour During Operation; Safety And Monitoring Devices; Operation In An Explosive Atmosphere - Kessel GTF 50 Hz Series Instructions For Installation, Operation And Maintenance

Beware of electromagnetic radiation!
Electromagnetic radiation is a potentially fatal risk for people with cardiac pacemakers. Put up appropriate signs on
the system and inform anyone affected accordingly.

2.5.2 Earth connection

Our ATEX pumps must always be earthed. If there is a possibility of persons coming into contact with the pump
and the pumping medium, the earthed connection must be additionally protected by a residual current-operated
protective device. The electric motors meet protective class 1.
2.6

Behaviour during operation

During operation of the product, the laws and regulations governing safety at the workplace, accident prevention
and handling electric pumps valid at the installation location must be heeded. In the interest of a safe working
procedure, the operator must delegate work to members of staff. All members of staff are responsible for complying
with the regulations. During operation, certain parts (impeller, propeller) rotate in order to pump the medium. Certain
substances can cause very sharp edges to be formed on these parts.
Beware of rotating parts!
The rotating parts can crush and sever limbs.
Never reach into the pump part or touch the rotating parts during operation. Always switch the pump off and allow
the rotating parts to come to a standstill before carrying out maintenance or repair work.
2.7

Safety and monitoring devices

Our pumps are equipped with different safety and monitoring devices. These include
e.g. thermal sensor, seal chamber check etc. These devices must not be removed or switched off. Devices such as
e.g. thermal sensor, float switch etc. must be connected by a qualified electrician and checked for correct function
before operation.
Please note that certain devices require an evaluation unit or relay to function perfectly, e.g. PTC thermistor and
PT100 sensor. This evaluation unit is available from the manufacturer or qualified electrician.
Staff must be instructed about the devices used and their function.
Caution!
The pump must not be operated if the safety and monitoring devices have been removed inadmissibly, the devices
have been damaged and/or do not work.
2.8

Operation in an explosive atmosphere

Pumps marked "Ex" are suitable for operation in an explosive atmosphere. The pumps have to comply with certain
directives for their use. Similarly, certain codes of conduct and guidelines have to be observed by the operator.
Pumps that are approved for use in explosive atmospheres are identified by an "Ex" icon on the type plate! It is
imperative that you pay attention to the instructions in the enclosed "Additional assembly and operating manual for
submersible motor pumps with explosion protection".
Safety
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