Great Plains NTA2000D Operator Manual - Manual (Page 44)

Multi-function Drill Control
38d
Select Metric/Imperial Units
1.
Press and hold the button while plugging the instrument into a
power source to enter program mode 2.
2.
Press to select the channel.
3.
PRESS to switch between metric and imperial.
The top row of horizontal segments indicates metric units are
selected and the bottom row indicates imperial units are selected.
4.
Unplug the instrument, then plug in again to resume the normal
display mode.
Function
Metric Imperial
Fwd Speed kph mph
Area Ha acres
Width/S.S.F. meters inches
Forward Speed
Display Forward Speed
Select the channel.
Forward Speed displays for 10 seconds before returning to the tramline
display.
Forward Speed Alarm
If you stop while the drill is in work or move at a speed less than 1.6
miles/hr (2.6 km/hr), then the instrument will beep twice, and the display
will alternate between the currently selected channel and the forward
speed channel.
The alarm continues until the speed is increased above the alarm
threshold.
NOTE: The forward speed alarm can be disabled in program mode 2.
Speed Sensor Calibration
The forward speed sensor is magnetically operated and senses the land
wheel rotation. In order to display the correct speed and accumulate area
correctly, the instrument must be programmed with the correct Speed
Sensor Factor (SSF). This is the distance traveled between two signal
pulses received from the sensor.
The S.S.F. can be calculated theoretically and then manually programmed,
or the instrument can automatically calculate it via the “Autocal” function.
Figure A
Enter Cal Mode 2
Figure B
Change Units
Figure C
Display Forward Speed