EDS - TECHNICAL INSTRUCTIONS
12
14.2
- verification of the circuit sensitive to Turbulence (if present).
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.
15 - FRONTAL LEDS OPERATION
15.1
- the frontal leds of the RX during the normal operation of the detector, give out the following indications (see fig.9):
• normal operation: the Blue led flashes every 10 seconds
• alarm: the Red led is constantly ON
• limit of compensation, interrupted beam, fault: the Blue led flashes every second
16 - MAINTENANCE
16.1
- the instrument requires an easy and periodic maintenance. It can be programmed or made automatic using remote
signaling of the detector.
During the normal operation and after a certain time from installation, if maintenance is not performed, the detector,
because of the dirt and dust deposited on the front of the covers, gives out a fault output signal, because of the decrease of
the signal below the limit of compensation.
Then it will be time to proceed to cleaning in order to restore the initial optical conditions.
16.2
- The operations to be done are the following :
• remove power supply
• verify the inside terminal board tightening the terminals in the case they are loose
• verify the optical alignment in case some changes of the structure on which the detector is installed. In this case repeat
the operations of chap.8
• perform the cleaning of the front covers of TX and RX.
We suggest to use a wet cloth with water with some trace of soap. Chemical products like alcohol, ammonia and similar
must not be used. The cleaning of the front cover is fundamental for the good operation of the device
• power up the device
17 - CHANGING THE SENSITIVITY
17.1
- Afer the installation and after some working time, if
you want to modify the sensitivity of the detector, read what
follow:
•
remove the cover of the receiver (it is not necessary to power OFF the detector)
• modify the sensitivity acting on the SW2 selector
• close the cover