Installation and use
COMPUTER XP805
23
5.5 Check the functionality of the speed sensor
Check the functioning of the speed sensor as follows:
1. Switch on the Computer by setting the relevant switch to <ON>;
2. Press the
P
SET/RESET
ROGRAMMING
key repeatedly until Km/h appears on the right side of the
display;
3. Repeatedly pass in front of the red part of the sensor using a screwdriver or
other metal mass. If the Computer shows the simulated speed (probably not
constant), it means the sensor works and is correctly connected.
5.6 Check the flowmeter sensor calibration
Check
the flowmeter sensor calibration (parameter “i”) as follows:
1. Fill the barrel with a preset amount of water, and as precise as possible (e.g. 200
litres);
2. Switch the computer on (<ON/OFF> key) in manual mode;
3. Access the programming mode (see Par.5.2 on page 19) and check the currently
programmed value of parameter “i” (e.g. 72);
4. Exit the programming mode;
5.
Reset the “total litres” totaliser (pressing the
P
SET/RESET
ROGRAMMING
key for <3> seconds);
6. With the machine stopped, activate the pump by actuating the relevant switch
and then manually set the system to the normal working pressure;
7. Drain all the water in the barrel;
8.
Check the litres shown in the “total litres” totaliser (e.g. 220);
9. Apply the following formula:
New pa
rameter “
i
”
=
TOTAL
LITRES
X
OLD
PARAMETER
“
i
”
LITRES
INTRODUCED
E.
G
.
220
X
72
=
79.2
200
10.
Return to the programming of the general parameters, change parameter “i ” and
set the new value obtained (79.2);
Repeat the test in the same way, making sure that the computer displays the exact
quantity of litres dispensed ± 1 litre (e.g. 200 ± 1 litre).
