EDS - TECHNICAL INSTRUCTIONS
7
7.4
- Adjust optical orientation of the detector acting on the bolts V1-V2-V3 (fig.9), so that the Laser beam is directed on the center of the
reflector on the opposite wall. When this happens, the reflector reflects a bright red light dot.
7.
5 - Turn OFF the Laser alignment tool.
7.6
- In this way, the optics of the detector are aligned with their reflector.
7.7
- Proceed with the adjustment of the maximum detector’s signal level as outlined in the following chapter 8.
7.9 - Alternative quick method
- Fix the detector on the wall
- Switch on Laser tool
- Fix the reflector on the opposite wall with the red dot of the Laser in the center of reflector (be careful not to look at the Laser beam)
- Switch off the Laser tool
- Optimize the signal (chapter 8)
8 - SETTING OF THE OBSCURATION CIRCUIT
Setting Operations of the electric signal must be perform according to the following sequence:
8.1
- Switch off the power supply of the detector
8.2
- Rotate the SW3 power selector in one of the positions 1-2-3-4 (fig.9) according to the distance between the detector and the reflector
(FX01-FX02-FX03, etc.) (reference fig.7)
8.3
- Move the jumper of Initial Set JP1 (fig.9) in the position ON (Alignment) to activate the phase of initial setting
8.4
- Power up the detector
8.5
- The blue led and the red one will start to work in the way described ahead in cap. 8.12. Before going on to this chapter read what’s
following
8.6
- the P1 trimmer (regulation of the signal level) is regulated in factory to the 50-60% and it corresponds to a signal of 5V to the maximum
distance
8.7
- To get the best results in the following operations, we recommend the use a measuring instrument (Multimeter), preferably an analog
hand type, for better control of the variations of the signal during the setup. Good results are also obtained using EDS analog meter STS01
(optional), designed for this application, that must be inserted on the special connector CN4, set on the printed circuit of the detector (v.
fig. 11). If you don’t have a Multimeter or the STS01, you can perform the setup operations anyway evaluating the signal level with the
frontal Leds indications as described in chap.8.12
8.8
- If available, connect a 5V fullscale Multimeter between the SIG terminal and the negative power supply terminal and read the analog
output signal. Instead of the multimeter, it is possible to use the STS01 meter (optional - fig. 11). If the output signal is very low, it means that
the operations of optical alignment described in chapter 5, have not been performed in the right way and therefore must be repeated
8.9 -
The detector emits a conic beam which form and dimension, in relation with the distance between detector and FX, are explained in
figures 5 -6. It’s important that the FX is in the center of the transmitter’s conic beam because, under these conditions, even if some small
movements of the wall, on which the detector is mounted, happens (caused by deformations), the reflector remains always within the
beam and therefore active.
To obtain this, the operations of fine centering with output signal measuring, explained below, must be performed with care.
8.10
- Regulate the signal to about 3V acting on the trimmer P1 (fig.9).
Attention! - Whether to get the 3V is necessary to adjust the trimmer counterclockwise to almost zero, or if turning the trimmer with
small movements, you notice big changes on the signal level, this means that the signal sent by the transmitter, is too powerful.
In this case it is necessary to decrease the power of the transmitter by acting on the the SW3 switch and turning it to the lowest steps (eg
if SW3 was set to 3, turn on 2 or even to 1). If this action is not enough, you need to use a smaller reflector or obscure a portion of the
reflector surface in order to reduce the reflective surface. After performing this operation, the adjustment of the trimmer P1 to get the 3V,
becomes simple and non-critical.
