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Operating instructions - digital oval gear meter and pulse meter
2.1 Authorized personnel
Only qualified and authorized persons are allowed to operate and to work on the oval gear meter.
Persons are qualified if they are, due to their training, experience, instruction and knowledge of the
relevant standards, able to assess assigned tasks and to identify potentially hazardous situations.
These persons must have been authorized by the person responsible for the safety of the unit and must
be able to identify and to avoid potential dangers.
All persons charged with installation, operation, maintenance and repair work, must have read and
understood this operation manual.
A copy of this operating manual must be stored permanently and ready at hand at the place of usage
of the unit.
2.2 Risks when handling the oval gear meter
CAUTION
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The oval gear meter is only suited for use with hardly inflammable media.
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The oval gear meter is not allowed to be used in potentially explosive
environments.
NOTE
Particular mention must be given to §19g of the German Water Resources Act
(WHG) which requires that filling facilities must be designed, installed, positioned,
maintained and operated in such a way so as to ensure that no water pollution or
other undesirable alterations of water properties occur.
According to §19i WHG, the operator of such an installation is obliged to monitor
permanently the compliance with the aforementioned requirements for the
installation location.
3. Intended conditions of use
This oval gear meter has been designed and developed for the precise measurement and registration
of volumes of varous media featuring different viscosities such as DEF, diesel and heating oil.
3.1 Design and functional description
The oval gear meter/pulse meter is a fluid meter with electronic counter and digital display.
The medium flowing through the meter sets a oval gear in rotation. The revolutions of the gears are
converted into electronic pulses and sent to the electronic counter by a Reed switch. The electronics,
finally, uses a certain multiplication factor to convert the pulses into an intelligible volume of liquid
having gone through the device, which is then shown on the LCD display.
The multiplication factor has been pre-set at the factory using an average that has turned out to be
useful in normal operation. However, it can be easily adapted to specific requirements by the user.
The total volume measured is stored and can be called up by pressing the TOTAL button.
The user needs only two membrane key switches for operation: RESET and TOTAL (total volume).
The body of the device is made of aluminium. (DEF version made of stainless steel).
