EN Publication
number
Nr
Rev. xx
Month/year
PR - 32/37
32
5 RF
transmitter
5.1 Introduction
The RF transmitter is used as remote control for a vacuum cleaner powered by a 3V changeable
lithium cell. The transmitter uses the 433MHz band for transmitting data inside EU. With the transmitter it is
possible to turn the appliance on and off, and regulate the motor power. Estimated lifetime for the battery in
normal use is approximately 8-12 months.
5.2
Design
5.2.1 Mechanical design, PCB shape
SW1 – ON/OFF
SW2 – (-)
SW3 – (+)
5.3 LED indication
The assembled LED is intended to communicate the battery status to the user. When there is no
LED indication it is time for the user to change the battery. In normal condition (standby) the LED are
inactivated. If a button is pressed the LED activates for approximately 250 milliseconds.
5.4 Changing the battery
Change the battery when light indicator is not responding when pressing any button. Observe polarity of
battery.
