ADAST MINOR LPG, Руководство пользователя

Страница: 20 / 53

USER’S MANUAL V-line 899x.xxx/LPG
14
1. Both dispensing points shall be free (transitions are not running at any of the both points and
terminated transactions shall be acknowledged).
2. Depress the " + " key to display the volume sum. Depress the " - " key to display the price sum.
3. All segments light up and light out on the displays of the sides after depressing the " + " key (or the "-"
key) (similarly with the transaction starting to checking if all segments display correctly) and total
number of feeding voltage drop-outs is shortly displaced.
4. Then " U " and the volume sum of the relevant nozzle (or " A " and the price sum of the relevant nozzle)
are displayed on the displays of sides.
5. It is possible to carry out the transition to the volume totalizer displays of the next dispensing nozzles
by repeated depressing the "+" key or by lifting the relevant nozzle (as well as the transition to the
price totalizer displays of the next dispensing nozzles by repeated depressing the "-" key or by lifting
the relevant nozzle).
6. Terminate the scanning of electronic totalizers by depressing the " 0 " key and in case the thermal and
electronic calibration are activated, transition in the display mode of their setting occurs.
7. The setting of thermal calibration for relevant nozzle is activated by the ATC text. The setting of
electronic calibration of the relevant nozzle counter is activated by the EC text.
8. Terminate the scanning by depressing the " 0 " key and return to the standard mode.
9.
MAINTENANCE OF THE DISPENSER AND ITS INDIVIDUAL
OPERATING UNITS
The user of the dispenser is obliged to operate the device safely, reliably and in economic way. First of all
he is obliged to:
–
appoint a worker responsible for the operation and technical conditions of the dispenser and its
individual components
–
ensure inspection, testing, repairs and maintenance by qualified methods
– carry out records and file documents
ATTENTION!
All repairs of operating units can only be carried out by a service repair shop and their
serviceman with relevant authorisation.
Repairs, changes and dismantlings of undermentioned dispenser units depends of the
perfect propane butane displacement with nitrogen from all space of dispenser hydraulic
system.
Since even after the education of nitrogen from the dispenser its residues with minimum
pressure stay in the hydraulic system, it is necessary to come on very carefully at the
service interventions.
Marking of space endangered with pressure expansion of residual nitrogen - see the
enclosure no. 8.
9.1. LPG piston flow meter
The LPG meter unit consists of proper meter and integrated impulse detector. It is adjusted by the
producer. Only authorised specialist can handle the metering unit because the meter is officially sealed. If
the seals are damaged, it is necessary to carry out an official inspection and new official sealing.
A trained worker should follow the meter continuously to carry out necessary repairs immediately in case
of any defect. Constant accuracy of the adjusted meter is one million dm
3
at least for measured liquid
without mechanical impurities. It is recommended to check the accuracy of the meter after dispensing
such liquid gas quantity. The meter should be periodically inspected (calibrated) by a metrological office
according to relevant legal regulations - once per year at least.
The impulse sensor is not being repaired - the meter should only be replaced. New official authorisation
(sealing) must be carried out after its replacement.
9.2. Differential valve
The valve is designed to keep the substance in liquid condition in the meter. It also damps pressure
shocks. Only uncompressible liquefied substance of pressure higher (appxm. by 0,1 MPa) than the