Delivery mode
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Aircraft Refuelling, Operating Instructions, BA 090323, (07.03.2022)
4.8.7 Differential pressure
If the fuel-filling vehicle has been fitted with a differential pressure sensor, the differential pressure in the
filter will be monitored during fuel-filling. System 3003 monitors both the current differential pressure
(dP) and the differential pressure extrapolated to 100% flow (dps). The “dps” is shown on the display. If
the differential pressure deviates from the parameters stored in the configuration, a corresponding dialog
message will be output and fuel-filling will be interrupted or blocked, depending on the configuration.
The dialog message must be confirmed by the operator. For detailed information, see also the chapter
"Differential pressure sensor - functional description" in the service instructions.
Examples of dialog messages
Differential pressure sensor: Max. differential pressure exceeded. If necessary, replace
the filter elements. (dP, status bits)
Differential pressure sensor: Max. differential pressure drop exceeded. If necessary,
replace the filter elements. (dP, status bits)