User guide

EDS - RK90R - OPTICAL BEAM SMOKE DETECTOR - USER GUIDE
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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 reestablish the initial optical conditions.
16.2 - The operations to be done are the following :
• remove power supply
• verify the terminal board tightening the terminals in acse they are loose
• verify the optical alignment in case some changes of the structure on which the instrument is mounted
or in the environment took place. 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 frontcover is fundamental for the good
operation of the device
• restore power supply
17 - SENSITIVITY SELECTION
17.1- Afer the installation and after some working period, 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