EDS - INFORMAZIONI TECNICHE
10
Warning! - the adjustment between 4 - 4.8V is not critical.
The procedure indicated above is the optimal one.
However it is sufficient that the signal is just above 4V and the blue LED is flashing or on steady,
to have a good calibration.
The microprocessor will automatically compensate for the inaccuracies in the calibration.
However, it is necessary to avoid saturation (red LED lit) because, in this condition, the detector
will not work properly.
12.11
- After carrying out these operations, adjust the alarm level of the circuit sensitive to the Darkening by
acting on the SW2 selector, bearing in mind the following:
• position 1 - low sensitivity - alarm level for dimming at 70% .........................1.5V signal level
• position 2 - medium / low sensitivity - alarm level for dimming at 60% ........ 2.0V signal level
• position 3 - medium / high sensitivity - alarm level for dimming at 50% ....... 2.5V signal level
• position 4 - high sensitivity - alarm level for dimming at 40% .........................3.0V signal level
12.12
- Sensitivity must be adjusted according to the environmental situation.
Normally the calibration must be done for medium sensitivity, but in the case of dusty and perturbed
environments, it will be good to use a lower sensitivity.
13 - SELF-COMPENSATION
13.1
- The internal electronics of the detector is equipped with a special signal compensation circuit. If the
detector is installed inside a particularly dusty room, the dust deposited on the front of the TX and RX
causes a decrease in the signal. This problem is automatically eliminated by the self-compensation circuit.
14 - FAULT OUTPUT
14.1
- As already indicated in chapter 4, the contact of the fault and fault relay is available on the RX terminal
board. This relay is normally energized and is de-energized if at least one of the following conditions is met:
• the signal falls below the calibration value by 90% (optical beam completely interrupted by an obstacle)
• the autocompensation circuit has reached the limit (when this occurs it is necessary to carry out maintenance
of the detector)
• circuit operating anomaly (means failure of some component)
15 - ALARM MEMORY AND DATA
15.1
- The RK100BS-EX receiver is equipped with an alarm memory that can be enabled / disabled using
the JP5 jumper (fig.1):
• jumper JP5 in position 1-2 - memory not activated (OFF)
• jumper JP5 in position 2-3 - memory activated (ON)
When the memory is activated, if the detector goes into Alarm, the alarm output relay and the frontal red
LED remain activated until the alarm stops and the voltage is not removed for more than 5 seconds.
When the memory is not activated, if the detector goes into alarm, the alarm output relay and the front LED
turn OFF as soon as the alarm stops.
