The Meaning Of Led Blinking (Qf11A-T); Choosing The Strength Of Ir Beam (Qf11-S) - Beam Trainer QF11A-T User Manual

User's Manual

The meaning of LED blinking (QF11A-T)

LED state
Long slow (1 to 4) blinks after
pressing the "POWER/MODE"
button
Short fast repetitive blinks
Short slow repetitive blinks
A longer blink after breaking the
beam
LED is on constantly for several
seconds

Choosing the strength of IR beam (QF11-S)

The Beam trainer device QF11-S allows three levels of IR beam transmitting power. That offers the
possibility to adjust the strength of the beam to momentary circumstances and adjustment of battery
life duration. After powering the device, the middle level is set, two LED flashes indicate that. Changing
IR beam power level is possible with pressing the "POWER/MODE" button. One LED blink means minimal
power, two blinks medium power and three maximum power of IR beam transmission.
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Beam Trainer QF11A-T and QF11-S
The number of flashes shows the appropriate channel:
1 blink
2 blinks
3 blinks
4 blinks
The device is searching for the IR transmitting signal. The QF11-S
should be switched on and directed upon QF11A-T with red
windows facing.
The device is in a normal operation mode and waiting for a beam
break.
The beam brake has been acknowledged, and the corresponding
timing information delivered
Batteries are empty; the device will turn off
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Meaning
1. channel
2. channel
3. channel
4. channel
5