Owner manual

Tilt Compensation Module for SmartPad II

TILT COMPENSATION MODULE

Bulletin 98-01151 R1

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Tilt Sensor Operation

The SmartPad II must be loaded with Fieldware software, version 4.03 or higher to be compatible with

the Tilt Sensor. When operating the Tilt Sensor the position data coming from the GPS receiver will be

compensated for vehicle tilt errors and then corrected information will be sent to the console.

When the vehicle experiences a sideways tilt, any guidance information is affected: For example, if the

GPS sensor is 12 feet (3.65m) above the ground, a 10-degree tilt gives a 2-foot (0.61m) positioning

error.

Tilt Sensor Functions

There are three LEDs visible on the Tilt Sensor which indicate the following:

• Blue - Blinks two times per second when the unit is powered and

running

• Green - Steady ON when tilt correction is enabled, OFF otherwise

• Yellow - Blinks one time per second when valid GPS location data

is being received (NMEA-0183 GGA)

Tilt Sensor Mounting Recommendations

1. Mount as close to the center of the vehicle side to side as possible.

2. Mount sensor on a parallel plain to the GPS antenna so both the antenna and the

sensor tilt the same degree.

3. Mount so the sensor is level and connector is pointing upward.

4. Sensor should be rigidly mounted to minimize vibration, because vibration will degrade

the ability to sense tilt.

5. Mid-Tech recommends using nuts and bolts or self tapping screws through the two

mounting holes on each end of the sensor.

6. The arrow on sensor decal must point toward the front of the vehicle.

7. Do NOT mount near extreme temperatures, upside down, or on its side.

Figure 1: Tilt Sensor Example

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TILT COMPENSATION MODULE Bulletin 98-01151 R1 Tilt Sensor Operation Tilt Compensation Module for SmartPad II The SmartPad II must be loaded with Fieldware software, version 4.03 or higher to be compatible with the Tilt Sensor. When operating the Tilt Sensor the position data coming from the GPS receiver will be compensated for vehicle tilt errors and then corrected information will be sent to the console.
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SmartPad II Settings Once the Tilt Sensor is properly installed and connected to the SmartPad II, two initial setup steps must be performed; enter an antenna height and calibrate (level) the sensor. The vehicle should be on level ground when performing these two steps. Antenna Height To access Antenna Height select Guidance>Setup>Guidance>Antenna Height. Enter the height of the GPS antenna above the ground. Initial value is 9.8ft (3m). Minimum value is 0, and the maximum value is 32.8ft. (10m).