Tank - Kanardia EMSIS User And Installation Manual

EMSIS – User's and Installation Manual

6.3 Tank

Depending on Daqu channel configuration and EMSIS layout, tank can be provided in two forms:
software tank – tank simulation,
•
true hardware tanks – real measurements from sensors.
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Software Tank
Software tank is active, when no "fuel level" channel is configured in Daqu. EMSIS allows you to enter
the current amount of fuel and this amount is then reduced in time based on fuel consumption. The fuel
consumption is either calculated or measured. Measured fuel consumption usually gives better results,
when high quality fuel flow sensors are applied. When fuel flow sensors are not applied, then the fuel flow
is calculated based on the engine type.
As you can see, the fuel level of software tank is highly subjective and depends on:
initial estimate of fuel quantity,
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precision of the fuel flow sensor or precision of the fuel flow mathematical model.
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Furthermore, any error in fuel flow will sum up in time resulting in a significant error in fuel level
indication. This means that software tank level indication must be accepted with a scepticism and the
pilot should not rely only on this indication.
When software tank is active, selecting the tank option displays the Set fuel window. Use the up and down
buttons to adjust the fuel level.
Alternatively, you can long press on the pager button. This shows the same window.
Figure 16: Software (simulated) fuel tank level adjustment window.
Hardware Tank
Here, sensors are used to indicate the fuel quantity. First you need to connect sensors to the Daqu and
activate/configure the appropriated channels. Once this is done, you can continue with the tank
configuration. For each tank a shape of the tank and its min/max value must be configured.
When selecting option Tank, a window illustrated on Figure 17 opens. T2 options are shown only if the
second fuel level channel is also active.
Figure 17: Tank configuration options.
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