Chapter 6 ______________________________________________________________ Maintenance 
VAISALA ______________________________________________________________________ 255 
 
  0401-143 
Figure 148  Switching Off Receiver Unit/Blower 
Heater 
The heater can be switched on or off for the transmitter or receiver unit. 
Select the command by pressing 
B. 
The user has to select whether to handle the transmitter or receiver unit. 
HEATER (R)ECEIVER/(T)RANSMITTER 
The transmitter unit heater is selected by pressing T. 
The receiver unit heater is selected by pressing 
R. 
The user has to select whether the heater shall be switched on or off. 
HEATER  TRANSMITTER O(N)/OF(F) or 
HEATER RECEIVER O(N)/OF(F) 
The heater is switched on by pressing N. 
The heater is switched off by pressing 
F. 
The result can be read at the displayed values at Heat. 
Beeper 
The beeper can be switched on or off for the transmitter or receiver unit. 
Select the command by pressing 
C. 
The user has to select whether to handle the transmitter or receiver unit. 
BEEPER (R)ECEIVER/(T)RANSMITTER