Operating Manual V8.2/03.2017
Non Invasive Road Sensor
30
G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany
14 Maintenance
The following are required for maintenance:
Hexagon socket wrench, size 6
Reflector unit (spare part)
Maintenance on the sensor must be performed in accordance with the indication
‘Remaining
Time to Next Service
’; this is due approximately once every two years. The following work
must be carried out:
Replace the reflector unit
Clean the transmitter and receiver plate
Function test / renew Adaption
Note:
Maintenance works must be performed by trained specialists only and in dry weather
(no precipitation), as the housing has to be opened. Otherwise the equipment can be
damaged due to the presence of moisture inside the unit.
Important note:
When carrying out maintenance, the same conditions that are required for
commissioning (see page 24) must be met and the instructions for commissioning must be
observed, as a new adjustment of the sensor takes place automatically after maintenance.
14.1 Replacing the Reflector Unit
To replace the reflector unit it is necessary to open the device by loosening the two screws
on the front.
Note:
Hold the front of the sensor while loosening the screws to ensure that the front of the
sensor does not fall downwards.
Remove the reflector unit connection cable and the 3 retaining springs.
