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Fuel Dispensers TATSUNO EUROPE ‐ Installation and User Manual , revision 10, January 2022
NOTICE
The switch from the automatic to manual mode must be discussed with the service engineer in advance!
5.3.9. AIR SEPARATION SENSOR (VRS1.G & ZE‐2063)
According to type certificate TCM 141/07‐4491, all TATSUNO pumps for diesel and biodiesel must be
equipped with air separation sensor. The VRS1.G flow sensor is mounted on the air separator of the
TATSUNO FP‐1001 pumping monoblock, the ZE‐2063 flow sensor is a part of the TATSUNO FP‐1022
monoblock. If the volume of separated air is higher than the volume that the pump monoblock is able to
safely separate, then the air flow sensor and subsequently the corresponding input (BL1... BL4) on the
counter processor unit are activated. The counter interrupts delivery (pumping) and error E51 appears on
the display.
Picture 84 ‐ Pumping monoblock FP‐1001
with air flow sensor VRS1.G
The procedure of dispenser locking and declaring an error is as follows:
A critical amount of air is sucked into the pump monoblock (e.g., if the suction line is broken). The VRS1.G
sensor is activated and the BL input goes to the active state, then for a test time of 1 to 50 seconds
(standard 10 sec.) the counter performs the first test cycle, i.e., closes the valve as when pumping to the
preselected volume (flow approx. 2 to 5 L / min) and monitors the status of the BL input when the pump
motor is running. If the BL input goes to the inactive state during the T
and pumping continues. If the sensor status does not change during the T
the pumping is stopped and error message code E51 is displayed. The number of "successful" cycles, i.e.,
cycles where no error E51 occurs, is limited to 3 by default during one filling. After exceeding the maximum
number of test cycles, the pump is terminated and error message code E52 occurs.
NOTICE
In the case of errors E51/E52, it is necessary to check the tightness of the supply line, the tightness of the suction
line in the tank and the fuel level in the tank.
5.3.10. PRESET KEYPAD
TATSUNO EUROPE dispensers may be equipped with a so‐called preselection keypad enabling preset the
delivered amount or quantity (volume or weight) by the customer directly on the dispenser. The customer may
decide before he/she starts the delivery what volume or for what sum of money he/she wants to refill the
Picture 85 – Pumping monoblock FP‐1022 (MVP‐X)
149
with air flow sensor ZE‐2063
time, then the valve opens fully
test
time and remains active, then
test
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