EDS - TECHNICAL INSTRUCTIONS
6
JP7
- Selection of alarm relay operational mode: normally powered (NC) or not powered (NO)
• JP7 ON - relay of alarm normally powered (in case of alarm the relay gets not powered). In this case the indication of the JP2 is inverted
• JP7 OFF - relay of alarm normally not powered (in case of alarm the relay gets powered). In this case the indication of JP2 is according to
figures 11-12 (diagrams of the terminal block and the classical scheme of connection to a control system to terminated lines)
6 - OPERATION
6.1
- The RK100-R(S) detector is equipped with 2 independent smoke detection circuits produced by a fire, but the _S versions only have
the Obscuration circuit.
•
Obscuration
- circuit sensitive to obscuration.
This circuit founds its operation on the diminution of the infrared ray intensity, along the optic run between the detector and the reflector,
caused by the smoke
•
Turbulence (not present in -S version)
- circuit sensitive to the Turbulence (heat).
During the beginning phase of the fire, generally there are some clouds of smoke and warm air that climb toward the ceiling. When these
clouds and warm air intercept the infrared ray produced by the detector, they provoke a perturbation of it, because produce a variation of
optic-physics characteristics in the transmission of the infrared ray. This variation is obviously time correlated. An opportune circuit has
been projected to detect this variation and, when these reach the amplitude and the duration in the time programmed, a alarm signal is
produced. The sensitivity and the delay of intervention of this circuit, are independently adjustable so that to fully satisfy the applications
of the technician. The advantage offered by this circuit is a great speed of fire detection, because it is detected in dynamic way in its initial
phase.
7 - OPTICAL ALIGNMENT WITH THE
LASER POINTER BLP-100
7.1- Warnings and safety instructions
7.1.1
- The pointer is installed on board of the RK detector in order to speed the optical alignment operation between the detector and the
reflector
7.1.2
- The BLP Laser pointer is an accessory that makes the installation faster EDS detectors. It allows a fast primary alignment. But it is
always useful to make the electrical alignment (fine adjustment).
7.1.3
- Be careful when performing the operations below, avoiding to damage the Laser pcb pressing or shocking it, so that it remains
alligned with the optics.The pointer is factory aligned with the optics on the factory testing optical bench.
7.1.4
-
Attention !
- When the Laser it’s switched ON, it must not be pointed directly to human eyes and nobody should watch the optics
along the optical axis of the beam.
7.1.5
- In case of long path distance between the detector and relector, it’s suggested to perform alignment operations in a reduced light
condition environment
7.2
- Fix the detector firmly on the wall and the optical reflector on the opposite wall
7.3
- Apply power to the detector and turn ON the Laser alignment tool using the switch (look at the photo)
