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Structure and design
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3.5.3
Cross Over Prevention (COP)
The Overfill Prevention Sensors may be equipped with a coded connection fitting. A specific
code is allocated to each product; this is read out by the Overfill Prevention Controller in the
tank truck via the socket coupler FP 903/FHS/K, and only approves the liquid delivery when the
product to be delivered coincides with the stored product. The coding is carried out via the
type FP 901 plug insert.
3.5.4
Filling Hose Safety (FHS)
The connection fitting can be used to monitor the hose. A signal is transmitted via connection
cable from the Overfill Prevention Controller of the tank truck to the Overfill Prevention Sensor
and then via the hoses back to the Overfill Prevention Controller. Only when the filler hose (for
petrol also the vapour recovery hose) is safely connected the delivery can take place. Contact is
made via the type FP 901 FHS plug insert.
3.5.5
Product Identification Device (PID)
If a connection cable with a type FP 903 FHS socket coupler is used and the connection fitting
has a type FP 901 FHS plug insert, the digital product identification PID (third party product)
can also be used.
3.5.6
Coding (example)
Code 1 = Super E10
Code 4 = Super Plus
Code 2 = Diesel fuel
Code 5 = not currently used
Code 3 = Super E5
Code 6 = not currently used
Code N = Neutral, FHS without COP