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When the controller already features factory-installed isolating amplifiers and/or electrical (zener)
barriers, then the permission documents and operating instructions are included with the switchgear
and they must be adhered to. Particular attention to applicable regulations concerning wiring is to be
paid! It is expressly pointed out that the it is the user's responsibility:
•
to guarantee observance of the applicable regulations
•
to carry out the installation in accordance with ATEX100a requirements
•
to execute required inspections and documentation.
•
to connect only appropriate and certified assembly units (like pumps, level sensors).
2.4
Additional documents
In addition to this operating manual and depending on the layout of the switchgear, further documents
and manuals may be attached to this operating manual and they are to be observed:
•
Clamp and wiring diagrams
•
Documents for Ex-certified assembly units
•
CPS documentation with telemetry functions (SCADA-Supervisory Control And Data Acquisition).
3
Load section
The load section of the control depends on the layout and the pump capacity. For this purpose
reference is made to wiring and connection diagrams. In connection with the control, however, the
following shall be observed:
3.1
Main switch
When the control is equipped with a main switch, then the control is switched on or off by means of the
main switch. The enclosure cover can only be opened when the main switch is in the OFF position.
The main switch has an emergency off function and it stops the pump(s). The master switch can be
locked in the OFF position by means of a padlock.
Attention: The in-coming clamps of the
main switch are live, even when the main
switch is in the off position
Remark: If the control unit comes already equipped with a rechargeable battery, then the electronic
system of the control continues to function as long as the battery is charged, even in case the main
switch is turned off, however, the pumps can not be switched on. For further details see operation with
rechargeable batteries.
Attention: If the control unit should not be equipped with a
main switch, then this control unit shall be made voltage free
before opening of the cover!
HSK_operating_manual_English_Ver3.doc
HOMA Pump Technology
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