Contents │ III
4.3.1 General ................................................................................53
4.3.1.1 Units..................................................................................53
4.3.1.2 Interference suppression...................................................53
4.3.1.3 Correlation curve...............................................................54
4.3.1.4 Blocking lter.....................................................................54
4.3.2 Filter basis............................................................................54
4.3.2.1 Coherence.........................................................................55
4.3.2.2 Cross spectrum.................................................................55
4.3.2.3 Spectrum 1 or Spectrum 2 ................................................55
4.3.2.4 Sound velocity...................................................................55
4.3.3 Pipe data (Default) ...............................................................56
4.3.3.1 Length ...............................................................................56
4.3.3.2 Material .............................................................................56
4.3.3.3 Diameter............................................................................56
4.3.3.4 Sound velocity...................................................................56
4.4 Settings in the Device menu ...................................................56
4.4.1 General ................................................................................58
4.4.1.1 Switching o the device ....................................................58
4.4.1.2 Switching o the backlight.................................................58
4.4.1.3 Automatic brightness.........................................................59
4.4.1.4 Brightness .........................................................................59
4.4.2 Time/Date.............................................................................59
4.4.2.1 Time ..................................................................................59
4.4.2.2 Date...................................................................................59
4.4.3 Region..................................................................................60
4.4.3.1 Date format .......................................................................60
4.4.3.2 Time format .......................................................................60
4.4.3.3 Language ..........................................................................60
4.4.4 Service .................................................................................60
4.4.4.1 Information ........................................................................60
4.4.4.2 Calibration.........................................................................61
5 Maintenance ..........................................................................62
5.1 Charging the batteries.............................................................62
5.1.1 Charging the batteries in the case .......................................62
5.1.2 Charging batteries using the AC/DC adapter or vehicle
cable.....................................................................................63
5.2 Handling faulty lithium-ion rechargeable batteries ..................64
5.2.1 Identifying faulty batteries ....................................................64
5.2.2 Removing the batteries from the C 200 receiver..................65
5.2.3 Removing the battery from the RT 200 transmitter ..............66
5.3 Calibrating the touch screen ...................................................67
