Tab 11-12 Fuel system (XX34NN)
Description Usual op-
eration
(value or
range)
Safeguard setting
Medium / physical value / location Signal number Func-
tion
Le-
vel
Trigger
value
De-
lay
Fuel supply - system side
Fuel (HFO) / viscosity [cSt] / engine inlet
connection 49
13 to 17
-
1
ALM H ≥ 20 0
ALM L ≤ 10 0
Fuel (MDO - MGO) / viscosity [cSt] / engine
inlet connection 49
3 to 14
-
1
ALM H ≥ 17 0
ALM L ≤ 2 0
Fuel supply unit
Fuel / pressure [bar] / inlet fuel supply unit
7.5 to 10
2
PT3421A ALM L ≤ 7 0
Fuel / temperature [°C] / inlet fuel supply
unit
3
20 to 150 TE3411A ALM H ≥ 50 to 160 0
ALM L ≤ 20 to 130 0
Fuel leakage / flow / outlet fuel supply unit - LS3426A ALM H max 10
Fuel leakage / flow / outlet fuel rail items - LS3446-47A ALM H max 10
Rail unit
Leakage / flow / outlet rail unit - LS3444-45A ALM H max 10
Pilot fuel filter
Fuel / differential pressure [bar] / pilot fuel
filter
- PS3464A ALM H ≥ 2.5 0
1
This measurement is not included in the standard engine supply (the viscometer is a yard supply
item).
2
When the engine has stopped, the setpoint is 10 bar. The value decreases when the engine load in-
creases.
3
The values are related to the fuel viscosity.
X92DF
AA00-0000-00AAA-033B-A
Operation Manual List of usual values and safeguard settings
Winterthur Gas & Diesel Ltd.
- 587 - Issue 002 2020-08
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