The principle of action: after starting the calibration process by pressing the "START" button the device
turns on a pump, a flow fuel sensor counts the number of liters passed through it, and when it reaches the value
specified in item "portion," turns off the pump. A given pause is held, to let the fuel level be stabilized and fuel
foam be settled. After that, the current value of the fuel sensor is entered into the table, and the pump is
started to fill the new portion. The process is repeated until you press the "STOP" button. In the case of failure
for the stand provides a pump cutout button. As the pump cutout button, any normally closed self-locking
switch can be used.
After connecting the calibration stand to the device, perform the following actions in the configurator:
- Choose the "MANUAL" sensor calibration mode
- Select the data source connected to the sensor. INPUT1 ... INPUT4 - for analog or frequency sensors,
DUT1 or DUT2 – for digital sensors connected to the ports PORT1 or PORT2 respectively
- Choose the sensor type: analog, frequency or digital
- Specify the initial fuel level if the tank has been already filled with fuel or calibration process has been
interrupted and it shall be resumed.
- Specify the volume of fuel that shall be poured for 1 time (portion). Another value in the calibration
process will indicate how many liters have already been in the tank.
- Specify the input that is connected to the fuel flow meter. In the example, in the picture the fuel flow
meter is connected to the INPUT 2.
- Specify output for pump control. In the example, in the picture the fuel flow meter is connected to
the INPUT 3.
- Specify the pause between the portions
- Specify the number of flow meter pulses per 1 liter of fuel. This value is taken from the flow meter
passport.
- Press the "Start" button, the automatic calibration of the fuel level sensor will start. After another
cycle of fuel filling the sensor readings corresponding to the amount of fuel poured in the tank will appear in the
table of values.
- Visually observing the filling of the tank, press the "STOP" button when you reach the top level of the
fuel tank. If the tank is suddenly overfilled, press the button of the emergency shutdown of the pump, located at
the stand.
- Save the table in a file or one of the two calibration tables in the memory of the device.
- Press the "Clear" button before starting the next calibration of fuel gauge
The calibration process records the current state and portions before and after each event and in the
case of hangup of the program, PC or connection, the program will continue the calibration at the next startup
from the same moment. If there is an incomplete calibration, the configurator should notify the user about it
immediately after going to the CALIBRATION tab.
