User's Manual

Proximity Sensor Calibration

All ERA Technology antennas, except the 2 GHz unit, are fitted with a proximity sensor.

This is to prevent the system from transmitting radio frequency energy into the air (a

requirement of many national certification agencies). It must be calibrated on every

occasion that the Head Electronics unit is powered up. Failure to do so will mean that the

radar will not transmit. In addition, a secondary safety device is built into the grip of the

function handle. This switch must also be kept depressed for the radar to operate. If the

antenna is lifted from the ground it will continue to transmit for approximately 10 seconds.

This feature prevents erratic operation when surveying uneven surfaces etc.

Calibration Procedure

1. Assemble the radar system so that it is ready to be powered up.

2. Invert the antenna so that it is pointing upwards into air or, alternatively, lift it so that

there is a gap of 20 cm (8 inches) between the antenna and the ground.

3. Switch on the radar.

4. The sensor will now automatically calibrate itself.

Note: The radar will not be transmitting during this procedure.

5. Turn over the antenna so that it is resting on, and pointing into the ground. If the

antenna was lifted, lower it so that it rests on the ground.

6. The system is now ready to operate.

Dead Man’s Handle

The function handle is fitted with a Dead Man’s Handle. This is the switch located in the

grip of the handle. This switch must be depressed for the system to operate. If it is

released, there will be a delay of approximately 10 seconds before the transmitter is turned

off.