Raven Envizio Pro, Installation And Operation Manual

Page: 41 / 287

Chapter 3
26 Envizio Pro™ and Envizio Pro II® Installation and Operation Manual
Light Bar
Envizio Pro field computers are capable of interfacing with an external Raven light bar through the auxiliary
interface cable (P/N 115-0171-745) or the chassis interface cable (P/N 115-0172-001).
If an external light bar is desired, follow the installation instructions provided with the light bar before
connecting the light bar to the field computer. Once installation of the light bar is complete, connect the light bar
cable to the serial connector labeled ‘COM 3’ on the appropriate interface cable. See Chapter 7,
Tools Menu ,
for information on configuring the field computer to send messages to the external light bar.
TM-1 Tilt Module
GPS receivers output position information relative to the position of the DGPS antenna. Most often, the
antenna is mounted on the top of the machine which means the GPS location is only accurate when the
machine is on level ground. On uneven terrain, such as side hills, the actual ground position may differ from
the location of the GPS antenna.
FIGURE 10.
Reported GPS Position Error Due to Side Hill
The Raven TM-1 Tilt Module compensates for any tilt of the vehicle from a level field condition. To supply tilt
compensated GPS signal, the Raven TM-1 Tilt Sensor receives a raw DGPS signal from the DGPS receiver
and outputs a tilt corrected signal to guidance devices or controllers.
If connected directly to the ‘DGPS’ connector on the main interface cable (P/N 115-0171-746) or chassis
interface cable (P/N 115-0172-001), the field computer may be used to configure the TM-1. Refer to the TM-1
Tilt Module Installation and Operation manual for details and installation diagrams for installing the Tilt Module
with the Envizio Pro field computer.
Note:
See the System Menu section on page 93 for information on setting up the TM-1 using the field
computer.
When routing tilt corrected signal through a SmarTrax controller and back into the Envizio Pro, the
TM-1 will need to be calibrated through the SmarTrax controller rather than the field computer. See
the SmarTrax Quick Start Guide or Operator’s Manual for more details on setting up and operating
the TM-1 with a SmarTrax controller.
Antenna
Height
Tilt
Angle
ST ARLI NK
Error
Error