Standen ZENO 21, Manual

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Manual Hydraulic Depth Control (optional)
On the ‘home’ screen (see fig 35) press the UP and DOWN arrows to hydraulically
change the seed planting depth. To plant shallower press the UP arrow. To plant
deeper press the DOWN arrow.
Automatic Hydraulic Depth Control (optional)
Automatic depth control ensures the preset planting depth is maintained irrespective
of the contours of the bed. The control system will need to be told that a depth sensor
is fitted.
Press the icon for 3 seconds. Using the yellow arrows, scroll until the ‘depth
sensor fitted’ screen is displayed (see fig 47). Record YES or NO using the + and –
icons.
Press to return to the ‘home’ screen (see fig 35). Using the + and – icons set
the desired depth. Alternatively, press the digits to display a keypad and enter the
depth. Press ‘DONE’ to confirm input. Press the ‘auto-depth ON / OFF’ icon to
activate the system. The automatic depth control can be overridden momentarily by
pressing the UP and DOWN arrows.
The depth control can be adjusted to set the amount of time (delay) before the depth
rams actuate. This helps to smooth out surface irregularities enabling the planter to
gradually change depth according to changes in bed height.
To adjust the delay, press the icon once and, using the yellow arrows, scroll
until the ‘depth control delay’ screen is displayed (see fig 39). Initially set the delay to
2.0 seconds.
A dead-band zone should be set to allow some movement up and down before
activating the depth rams.
To adjust the dead-band, press the icon for 3 seconds. Using the yellow
arrows, scroll until the ‘depth control dead-band’ screen is displayed (see fig 49).
Using the + and – icons, initially set the dead-band to 1.5cm.
OPERATION 1.22