FASTERHOLT FM2500, User Manual And Spare Parts Catalogue

Page: 21 / 60

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PRE-IRRIGATION:
If pre-irrigation is required, press the
PRE-
key. The pre-irrigation time is calculated as 8 x the time to move 1 m at the current speed. The constant can be
changed individually for pre- and post-irrigation. (See constants). If pre-irrigation is selected, the machine will move forward approx. ½ m, after which the
machine will stop and stand still for as long as pre-irrigation is performed. Menu 2 shows the number of minutes remaining of the pre-irrigation time. If you
want to cancel pre-irrigation, press the
START
key. This will cancel both pre- and post-irrigation and the turbine will start.
POST-IRRIGATION:
If post-irrigation is required, press the POST- key. The post-irrigation time is calculated as 8 x the time to move 1 m at the current speed. The constant "8" can
be changed individually for pre- and post-irrigation. (See constants on page 17). Post-irrigation starts counting down when the magnet is removed from the
stop sensor. When the stop sensor is activated, the turbine stops and post-irrigation starts counting down (see menu 2). When the post-irrigation time has
elapsed, the main valve closes. (Opens in installations with negative pressure stops). For machines with mechanical end stops: The turbine stops when the
stop sensor is activated. When the post-irrigation time has elapsed, the turbine starts and the machine moves to the mechanical end stop. Press START to
cancel post-irrigation. If constant "8" (early stop) is selected, the machine will stop when it reaches the selected distance.
PROGRAMMING 4 DIFFERENT SPEEDS:
The hose must be unwound before programming, so the computer knows the number of metres in the irrigation lane.
The following example assumes that the unwound hose is 400 m. Press the
PROG key 3 times and the display will show:
The desired speed can now be selected, in this case 25.0 m/h. Press the
PROG
key and the display will show:
The desired distance can now be selected, in this case 300 m. Press the
PROG
key and the display will show:
Now that the first zone is programmed, apply the same procedure to all 4 zones. Zone 4 automatically ends at 0. When zone 4 is pro-
grammed, press the
PROG
key again and the display will show:
If
PROG
is pressed, the program is stored and irrigation will be performed according to this program.
If
MENU
is pressed, the program is deleted and the speed is the same for the entire irrigation lane.