MC Electronics XP805 User manual

XP805
AUTOMATIC FLOW RATE
REGULATOR
INSTRUCTIONS FOR USE
AND
ASSEMBLY
NO. 2815-EN
REV. 1
EN

Installation and use
COMPUTER XP805
2

Installation and use
COMPUTER XP805
3
This product complies with EMC requirements in accordance with Directives
2004/108/EC and subsequent amendments
and reference to Applied Regulation EN ISO 14982
Manufacturer
: MC elettronica S.r.l.
Address
: Via E. Fermi, 450/486
Fiesso Umbertiano (ROVIGO) - ITALY
Tel. [phone] Fax [phone]
E-mail: [email protected]
Internet: www.mcelettronica.it
Manual code
: 2815-EN
Issued
: March 2013
Edition
: November 2020
MC elettronica S.r.l. is not obliged to give notice of any further modifications of the
product.
The information given in this manual does not allow unauthorised personnel to
tamper with the product in any way.
The warranty on the equipment will no longer be valid if tampering should be
detected.
© Copyright MC elettronica 2020

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COMPUTER XP805
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Contents
1. Rules and general warnings ................................................................................ 5
1.1 Introduction....................................................................................................... 5
1.2 Terms of the warranty....................................................................................... 6
1.3 Service.............................................................................................................. 6
2. General description .............................................................................................. 7
3. How to install the system..................................................................................... 8
3.1 How to install the computer............................................................................... 9
3.1.1 Electrical connections .......................Errore. Il segnalibro non è definito.
3.2 Sensor installation........................................................................................... 10
3.2.1 How to install the speed sensor ............................................................... 10
3.2.2 How to install the flowmeter sensor or pressure sensor........................... 11
3.3 Front view ....................................................................................................... 12
3.3.1 Keyboard.................................................................................................. 13
3.3.2 Display area............................................................................................. 14
3.4 Rear view........................................................................................................ 15
4. Accessories......................................................................................................... 16
4.1 Standard accessories...................................................................................... 16
4.2 Optional accessories....................................................................................... 16
5. Programming....................................................................................................... 17
5.1 Programming L/ha and selecting the nozzle................................................... 17
5.2 Programming machine parameters................................................................. 19
5.3 Practical example of calculation of parameter “C” to be programmed ............ 21
5.4 Automatic calibration of parameter "C" (recommended)................................. 22
5.5 Check the functionality of the speed sensor.................................................... 23
5.6 Check the flowmeter sensor calibration .......................................................... 23
6. Operation............................................................................................................. 24
6.1 Pressure display range ................................................................................... 26
7. Maintenance........................................................................................................ 27
7.1 Routine maintenance...................................................................................... 27
7.1.1 Protection fuses ....................................................................................... 27
7.1.2 How to protect the main connector .......................................................... 27
7.2 Extraordinary maintenance ............................................................................. 27
7.2.1 Maintenance of the flowmeter sensor ...................................................... 28
8. Troubleshooting.................................................................................................. 30
9. Technical data..................................................................................................... 31

Installation and use
COMPUTER XP805
5
1. Rules and general warnings
1.1 Introduction
This instruction manual provides all specific information needed to know and correctly
use the equipment.
After buying the Computer, read the manual carefully and refer to it any time you
have doubts on how to use the equipment or when you have to carry out
maintenance operations.
Keep the manual on the machine. If this is not possible, keep it ready at hand.
ALL RIGHTS RESERVED. THIS MANUAL IS INTENDED FOR CUSTOMERS ONLY. ANY
OTHER USE ISFORBIDDEN.

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COMPUTER XP805
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1.2 Terms of the warranty
SUBJECT OF THE WARRANTY: the warranty is applied to the product and to
those parts which are marked with the serial number or any other identification
number used by MC elettronica;
DURATION OF THE WARRANTY: MC elettronica guarantees the XP805
system and its accessories for a period of 1 year from the manufacturing date
(indicated on the identification label on the lower part of the Computer).
The warranty covers the product and any repairs carried out within the agreed
terms.
This warranty does not apply in the event of:
accidental damage;
improper use;
changes which have not been agreed upon, improper installation (or set-up);
damage caused when a equipment not manufactured by MC elettronica,
which is mechanically or electrically connected to our instruments, breaks or
does not function properly;
force majeure events (lightning, floods, fire or other causes which do not
depend on MC elettronica).
Repairs under warranty, which must be carried out in the laboratories of our
authorised centres, are entirely free of charge provided the equipment is directly
transported to said laboratories or sent carriage free. Transport costs and
ensuing risks are entirely borne by the Customer.
The above-mentioned warranty is valid unless otherwise agreed between MC
elettronica and the Customer.
!
Warning
MC elettronica declines any liability for damages or direct or indirect
costs caused by improper use or inability of the Customer to use the
equipment separately and/or together with other equipment.
1.3 Service
Service is available in all countries where the equipment is officially supplied by MC
elettronica (during and after the warranty period).
Any kind of operation that is to be carried out on the XP805 system must be done in
accordance with the instructions stated in this manual or as agreed with MC
elettronica.
If not, the relative terms of the warranty might become null and void.

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COMPUTER XP805
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2. General description
The XP805 computer is an automatic flow controller designed for use on small sized
spreaders, equipped with electric pump 12Vdc - 10A, devoid of pressure control
valve and with a single nozzle holder bar section.
In the screen printed polyester front there are four thermoformed keys, eight led
indicators, a five-digit display and bars to show the following values:
Machine feed-rate
Distributed amount in litres per hectare
Flow rate and pressure to the nozzles
Liquid left in the tank
Worked area
Working hours
Using the keys on the front you can program the working width, the colour of the
nozzle mounted on the bar (necessary for operation with pressure sensor) and the
quantity to be distributed in L/ha.
In "manual" work mode it allows you to display the above mentioned variables and
the manual adjustment of the pressure by modifying the rotation speed of the pump
by means of the
+
-
keys.
In "automatic" working mode, it allows the proportional distribution upon
advancement, by automatically adjusting the rotation speed of the pump according to
the flow rate detected by the pressure sensor or the flowmeter.
The “Feed-rate” value can be detected by the inductive or radar sensor.
To learn the programming steps, refer to Chap.5 “Programming” on page17.

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COMPUTER XP805
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3. How to install the system
Figure 1. Overall dimensions.
114
134
158
82
MAX Rotation
167°

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COMPUTER XP805
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3.1 How to install the computer
To install the computer proceed as follows.
drill a Ø9 mm hole on a flat surface inside the middle cab and securely fasten the
bracket to the middle structure with a screw (not supplied), in line with those
present on the bracket (A).
Fasten the computer to the bracket using the two knobs on the sides (B)
N.B.: We recommend installing the Computer in front of the operator to make it
easier to use during the working cycle.
Figure 2. How to install the computer
B
B
A

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COMPUTER XP805
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3.2 Sensor installation
Computer XP805 must be connected with 2 types of sensors:
Speed sensor (always present);
Flowmeter sensor (an alternative to the pressure sensor);
Pressure sensor (an alternative to the flowmeter sensor).
3.2.1 How to install the speed sensor
You can install the speed sensor anywhere there is mechanical movement, on the
wheel (front or rear) of the agricultural machine/vehicle or by creating a metal
reference protruding by at least 1 cm. We recommend installing the speed sensor
inside the wheel and placing the sensor head opposite the rim bolts (Figure 4 –ref.
A).
Set the gap between the sensor and the bolts at about 2/3 mm (Figure 4 –ref. B).
Fasten the sensor supporting bracket securely to a fixed part of the vehicle/machine
structure. Fix the sensor to the bracket with the nut and the lock nut.
!
Warning
The sensor cable should be covered with a rubber sheath.
Figure 3. How to install the speed sensor.
Inner side of wheel
speed sensor
metal reference

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COMPUTER XP805
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3.2.2 How to install the flowmeter sensor or pressure sensor
If the flowmeter sensor has been installed correctly, the computer must indicate the
flow only when the pump is active.
!
Warning
The flowmeter sensor or the pressure sensor must be installed as far as
possible from the pump. It is therefore advisable to install the flowmeter
sensor or pressure sensor at a minimum distance of 1 metre from the
pump, in order to have greater flow uniformity and greater measurement
accuracy.
Figure 4. Installation of flowmeter sensor or pressure sensor.
Pump
Flow meter
sensor
Pressure
sensor
Tank
1 m
(minimum)
Nozzle bar

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COMPUTER XP805
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3.3 Front view
The front panel allows the user to view all the data relating to the working cycle. 2
main areas are identified:
A. Keyboard area for operation of the main controls and for programming;
B. Display area that includes the display and the main lights to display all the
information.
LIVELLO
+
OFF
ON
-
P
SPEED L/ha
OFF
ON
AUTO
L/MIN
1.4
0.6 1.00 0.2 2.2 3.02.61.8
AREA
5.04.2 4.63.4
SET/RESET
3.8
REGULATION
ROGRAMMING
LOGO
P
Figure 5. Front view.
A
B

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COMPUTER XP805
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3.3.1 Keyboard
KEY
FUNCTION
OFF
ON
Main ON switch
P
SET/RESET
ROGRAMMING
Multi-functional key to select the
displayed value and for the
programming phase
+
-
REGULATION
Multi-functional keys to manually adjust
the pump speed and the parameters
during programming
OFF
ON
Switch to enable/disable the output for
pump speed adjustment
AUTO
Key with LED to switch between
Automatic and Manual mode:
LED on = Automatic

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COMPUTER XP805
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3.3.2 Display area
LIVELLO
SPEED L/ha L/MIN
1.4
0.6 1.0
00.2 2.2 3.02.61.8
AREA
5.04.2 4.63.4 3.8
P
REF.
DESCRIPTION
1
Display to view the values (see ref.4)
2
Triangles indicating the type of selected
nozzle
3
Bars indicating the working pressure
detected by the specific pressure sensor
or by the calculation based on the l/min
measured with the flowmeter
4
Red signal LEDs.
Indicate the displayed value:
- SPEED: Feed-rate detected via:
a) NPN proximity sensor
b) high frequency input from radar
- L/ha: Litres per hectare currently
distributed.
- L/MIN: Litres per minute currently
dispensed.
- LEVEL: Litres left in the barrel.
- AREA: Total processed area.
1
2
3
4

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COMPUTER XP805
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3.4 Rear view
The following elements can be found on the back of the computer:
A. Buzzer for acoustic signals
B. Main connector for wiring connection
C. Identification label (lower side)
Figure 6. Rear view.
A
B
C

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COMPUTER XP805
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4. Accessories
4.1 Standard accessories
Table 4-1. Standard accessories
CODE
DESCRIPTION
20CAB-XP805-0001
Wiring
4.2 Optional accessories
Table 4-2. Optional accessories
CODE
DESCRIPTION
481
Speed inductive sensor D=18/5mm NAMUR TS L=2.9m with
bracket A01G185-K3
952
Flowmeter 2-20 L/min PL 40-F7
16431
Water pressure transducer 40 BA
1
The pressure sensor is used as an alternative to the flowmeter sensor.

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COMPUTER XP805
17
5. Programming
The computer has 2 different programming levels, one specific for programming the
L/ha to be distributed and for selecting the type of nozzle used in the work with a
pressure sensor (parameters to be changed often), and one for programming the
“machine parameters” (usually modified only when the machine is modified or
replaced).
5.1 Programming L/ha and selecting the nozzle
Turn on the computer and wait for the test that appears on the numeric display to be
completed. Press the
P
SET/RESET
ROGRAMMING
key repeatedly, which allows you to select the value to
be shown on the display, until the corresponding LED lights up, then hold
down the
P
SET/RESET
ROGRAMMING
key for about 2 seconds so that you can enter this programming
phase.
The following configuration will appear on the computer:
LOGO
Letter P will flash. With the
+
-
keys you can change the data and than confirm
it by pressing the
P
SET/RESET
ROGRAMMING
key again.
LIVELLO
+
OFF
ON
-
P
SPEED L/ha
ON
AUTO
L/MIN
1.4
0.6 1.0
00.2 2.2 3.02.61.8
AREA
5.04.2 4.63.4
SET/RESET
3.8
REGULATION
ROGRAMMING
P
2
1

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COMPUTER XP805
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Programmable range: 0 ÷ 9999 L/Ha
Step: 1L/ha
Default: 200L/ha
Pressing the
P
SET/RESET
ROGRAMMING
key will switch to the selection of the nozzle and the following
configuration will appear on the display:
Letter U will flash. Use the
+
-
keys to select the type of nozzle: the arrow will
indicate the selected nozzle that will also be identified with the letter U followed by
the progressive number (U1, U2, U3, U4 ... U8).
Pressing the
P
SET/RESET
ROGRAMMING
key again will confirm the selection made and the computer will
return to the display of the distributed L/ha.

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COMPUTER XP805
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5.2 Programming machine parameters
To access this programming phase, press the
P
SET/RESET
ROGRAMMING
key when the computer is off,
and while pressing the key, switch the computer on from the ON/OFF switch:
LIVELLO
+
ON
-
P
SPEED L/ha
ON
AUTO
L/MIN
1.4
0.6 1.00 0.2 2.2 3.02.61.8
AREA
5.04.2 4.63.4
SET/RESET
3.8
REGULATION
ROGRAMMING
P
After the initial test, 5 horizontal dashes will appear on the display for about 2
seconds, after which the first programmable machine parameter will appear, and at
this point you can release the
P
SET/RESET
ROGRAMMING
key.
The possible programming modes required by the XP805 Computer will be listed
below. Vary the displayed data by pressing the
+
-
keys separately and then
you can confirm it by pressing the
P
SET/RESET
ROGRAMMING
key and then going to the next parameter.
Calibration of the feed-rate
programmable range: 30 ÷ 999 PUL/100m step: 1 default: 200
Letter "C" will flash, thereby indicating the number of pulses coming from the
speed sensor for every 100 linear metres travelled by the machine.
Programming the working width
programmable range: 1.00 ÷ 51.00 m step: 0.01 default: 2.00
The "L" will flash, thereby indicating the working width expressed in metres
Programming the type of sensor used
programmable range: P ÷ F step: -- default: P
The "S" will flash, thereby indicating the type of sensor installed and used for
the calculation of L/min and L/ha, i.e. the pressure sensor (P) or flowmeter (F)
Programming the flowmeter sensor
programmable range: 10.0 ÷ 999.9 step: 0.1 default: 72.0
The "i" will flash, thereby indicating the number of pulses per litre coming from
the flowmeter
1
2
LIVELLO
+
OFF
ON
-
P
SPEED L/ha
ON
AUTO
L/MIN
1.4
0.6 1.00 0.2 2.2 3.02.61.8
AREA
5.04.2 4.63.4
SET/RESET
3.8
REGULATION
ROGRAMMING
P

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COMPUTER XP805
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Programming the pressure sensor
programmable range: 5 ÷ 30 step: 1 default: 10
The "Pr" will flash, thereby indicating the maximum value that can be detected
by the pressure sensor used
Programming the density of the product used
programmable range: 0.50 ÷ 2.00 step: 0.01 default:
1.00
The "d" will flash, thereby indicating the density of the product used
Programming the capacity of the tank
programmable range: 0 ÷ 9999 L step: 1 default: 150
The “t” will flash, thereby indicating the maximum capacity of the tank of the
machine; this data will be used to reload the totaliser ,and the
dispensed litres will be deducted from this value
Programming of the feed-rate in automatic mode
programmable range: 1.0 ÷ 9.0 step: 0.1 default:
4.0
The “dP” will flash, thereby indicating the speed adjustment coefficient in the
Automatic work mode (see Par.5.4)
Programming the permissible error range
programmable range: 3 ÷ 20 step: 1 default: 20
The “CE” will flash, thereby indicating the permissible error range as a
percentage, referred to the programmed L/Ha value, during the automatic
adjustment
Programming the number of nozzles present
programmable range: 1 ÷ 100 step: 1 default: 20
The “nU” will flash, thereby indicating the total number of nozzles present on
the machine
Programming the flow rate of the nozzle to 2 bar
“U1” programmable range:0.10÷ 9.99 step:0.01 default: 0.32
“U2” programmable range:0.10÷ 9.99 step:0.01 default: 0.48
“U3” programmable range: 0.10÷9.99 step:0.01 default: 0.65
“U4” programmable range:0.10÷ 9.99 step:0.01 default: 0.96
“U5” programmable range:0.10÷ 9.99 step:0.01 default: 1.29
“U6” programmable range:0.10÷ 9.99 step:0.01 default: 1.61
“U7” programmable range:0.10÷ 9.99 step:0.01 default: 1.94
“U8” programmable range:0.10÷ 9.99 step:0.01 default: 2.00
The “U1” indication will flash and the arrow will indicate the corresponding
nozzle; this parameter corresponds to the flow rate in L/min that the nozzle
dispenses with a pressure of 2 bar; this data is very important when working
with the pressure sensor. Pressing the
P
SET/RESET
ROGRAMMING
key allows you to move to the
next nozzle
Then, pressing the
P
SET/RESET
ROGRAMMING
key before exiting and returning to the normal work mode,
the Computer will display the software version currently programmed, as shown in
the figure: