19
EDS - RK90R - OPTICAL BEAM SMOKE DETECTOR - USER GUIDE
16 - MAINTENANCE
16.1
- the instrument asks for a simple and periodic maintenance. It can be programmed or made
automatic on special signaling of the detector.
During the normal operation and after a certain time from the installation, if the maintenance is not
performed, the detector, because of the dirt deposited on the frontal surface of the cover, produces a
Fault signal because of the drop of the signal over the limit of compensation.
Then it will be the moment to proceed to cleaning of the surface so that to restablish the initial optical
conditions.
16.2
- The operations to be effected are the followings:
• the detector must be not powered
• clean the cover surface of the detector. You must use a wet cloth with water and some trace of soap.
Chemical products must not be used what: alcohol, ammonia and similar. The cleaning of the surface
is fundamental for the good detector operation
• verify the inside terminal board tightening the terminals in the case they are loose
• verify the optical alignment in the case of some deformations of the structure on which the detector
is installed. In such case repeat therefore the operations to the cap.8
• power up the device
17 - SENSITIVITY SELECTION
17.1
- After the installation and after some operation time, if
you want to modify the sensitivity of
the detector, read what follows:
•
remove the cover (it is not necessary to power down the detector)
• modify the sensitivity acting on the SW2 selector
• close the cover