Kanardia Daqu, Руководство по установке

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Daqu — Manual 4.13 Fuel Flow
Practice shows that factory specifed number of pulses do not always give
precise results. Thus a correction factor can be applied. Idealy, the correction
factor is 1.0. When indicated fuel flow seems too low, a factor larger than 1.0
shall be applied and vice versa.
Let N denotes number of pulses per liter, T denotes time between pulses in
seconds and C correction factor. The fuel flow rate in liters per hour is then
calculated as:
FuelFlow[l/h] = C
·
3600
N
·
T
Daqu measures average time between pulses and the other two values must
be specified in configuration.
4.13.1 Installation
Each sensor may have specific installation requirement. Please check the
sensor manual for details.
In general:
ˆ
Sensor shall not be installed close to hot parts, like exhaust system.
ˆ
Some sensors use NPT fittings (tapered). Always respect maximal
torque allowed, when tightening the fitting.
ˆ
Never use Teflon tape or Pipe dope for sealing! Use special thread
sealant paste instead.
ˆ
Respect input and output ports. Reversing ports may cause fuel star-
vation.
ˆ
Sensor orientation may be important. Please check the sensor manual.
ˆ
Each sensor will cause some pressure drop in the fuel line. Check this
pressure drop – sensor data sheet shall reveal it. The pressure drop
may be larger if sensor’s rotor is blocked. You must ensure that there is
enough fuel pressure even in the case of blocked sensor rotor. Pressure
drop increases with fuel flow rate.
ˆ
If feasible, install fuel pressure sensor after the fuel flow sensor, so that
indicated fuel pressure will take fuel flow sensor pressure drops into
account.
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Kanardia 2019