Type / N°
Rev.
Fw
Date
Page
Total pages
EW055.600D
D
4L
6
th
June 2018
9
43
EsiWelma
®
s.r.l.
2.2.4 Programming by a 16-key keyboard
When computing head switches on, it makes a presence control of the keyboard. If this test is
positive, the computing head manages the keyboard to pre-set a quantity or an amount to be
delivered.
1
2
3
DELETE
4
5
6
ENTER
7
8
9
Euro
Not
Used
0
,
Kg/Smc
Figure 6:
16-key
Keyboard
With nozzles in place, keyboard works and can be used as follows:
1. Choose Euro or Liter pre-set by pressing the corresponding button.
2. Press number buttons (with comma, if necessary) to pre-set value.
3. Press « ENTER». Now the display of the computing head shows on the LCD the amount
(upper line) or the quantity delivered (central line).
4. If the value is correct, delivery can start. If an error occurs, press «DELETE» and repeat
steps 1
÷
3.
During the delivery, keyboard doesn’t work.
When operator puts the nozzle back in place another operation is possible.
2.2.5 Automatic stop sequence
Automatic stop occurs in two phases:
Flow rate reduction by controlling an optional solenoid valve. The point of intervention
can be varied by set-up (bP parameter) following the procedure described below.
Motor and solenoid valve stop.
