Ritron RIT27-150 Manual Do Utilizador

The LPA-Series receiver can be field programmed for any volume level between 05-99% by entering the volume 

level as a 2-digit code.  The LPA receiver is set from the factory with a 50% volume setting.  If your PA amplifier 

has independant volume control you should not have to adjust the LPA receiver volume.  If there is no volume 

control, or if the PA amplifier volume control is pre-set for background music, you can adjust the input level to the 

PA amplifier by adjusting the LPA receiver volume. Field programming Volume Level sets both the voice and the 

pre-announce tone volume levels.  The PC programmer is required for independent programming of the voice and 

the pre-announce tone volume.   

 

In our example we will program an LPA-U450 for 25% Speaker Volume Level.   

 

1. Press 

and 

 the PROGRAM button (See 

LPA-Series receiver assembly

 on page 2 for 

location). A "P" will appear on the program display as you enter program mode and the 

radio will beep rapidly. 

2. Release 

the 

 

button after the beeping has stopped. The radio will emit a triple 

beep indicating that the radio is in program mode and a hyphen will appear on the program 

display. 

3.  Scroll to the character “U” by clicking the PROGRAM

 

button until the program display 

shows the correct character. Pause—the radio will sound a low tone and show a hyphen 

across the center of the display to indicate that it is ready to accept the first digit of the 

volume setting.   

4.  Enter the 1

st

 digit of the volume setting by clicking the PROGRAM

 

button until the program 

display shows the desired number. Pause—the radio will sound a low tone and show a 

hyphen across the center of the display to indicate that it is ready to accept the next digit. 

5.  Enter the 2

nd

 digit of the volume setting by clicking the PROGRAM

 

button until the program 

display shows the desired number. Pause—the radio sounds a low tone and will show a 

hyphen across the center of the display to indicate that it is ready to accept the next digit. 

6.  Press and release the ENTER button to save your programming. A triple beep will sound to 

indicate that programming was successful and a hyphen will appear on the program 

display.  The radio is now ready for another program entry. 

 

NOTE:  An error tone will sound if you attempt to save an incorrect code, an "E" will appear 

on the display.  Check the digits you are attempting to enter, then re-enter.   

7.  Once you have made your final program entry, press the ENTER button a final time to exit 

programming mode.  The Program display will be blank and the radio will be ready for use.  

The LPA-Series receiver will exit program mode automatically after 30 seconds if no 

program entries are attempted. 

 

   Volume settings below 10% are entered as a 2-digit code with a first digit “0”. 

 

 

  

To readout the current volume setting, follow the instructions above and enter a 

volume setting code “00”.  When you press the ENTER button the radio will 

immediately begin to display the 2-digit volume setting; with each digit separated by 

a hyphen.