User guide

EDS - RK90R - OPTICAL BEAM SMOKE DETECTOR - USER GUIDE
17
12 - OPERATIONAL TEST
12.1 - verification of the circuit sensible to obscuration
The verification is done simply darkening the TX or the RX with an opaque screen.
After 10 seconds, the RX alarm relay must activate / deactivate (chap.5.2 - jumper JP7) and the frontal
alarm red led must be switched on.
After that, remove the screen and the alarm relay must be switched red led switchs off, and the blue led
returns to flash every 10 seconds.
If the function of memorization is activated (v. chap.14), it is necessary to remove the power supply
from the RX for at least 5 seconds to remove the persistence of the alarm indication.
12.2 - verification of the circuit sensible to turbulence.
Place and remove an opaque screen in front of the RX several times with the following sequence (dark
/ light) and selecting the corresponding sensitivity with SW1 selector:
• position 1........... 2 second dark - 2 second light for 10-12 times
• position 3.... .......2 second dark - 2 second light for 8-10 times
• position 2........... 2 second dark - 2 second light for 6-8 times
• position 4............2 second dark - 2 second light for 4-6 times
After the correct sequence the turbulence relay must be activated.