RIB ACG9063 Manuel page 8

G
B
ACG9063 and ACG9060 are two undecal, skirt-board, electromagnetic detectors especially
designed and built for the management of magnetic loops and for generating two command
signals upon a metal body of considerable size, such as a motor vehicle, motor cycle, etc.,
passing over them.
TECHNICAL FEATURES
Power supply
Consumption
Connectable loop
Number of outputs
Types of outputs
Impulsive output
Exit presence
Relay contact capacity
Signal
Working temperature
Size / Weight
Range of tuning of the detector
REALISATION OF THE SENSITIVE ELEMENT
In order to obtain an optimal working of the system it is advisable to use the RIB loops.
ACG9067 LOOP 6 M (2 x 1 + 15 m) 88,5 µH
ACG9068 LOOP 10 M (3 x 2 + 15 m) 147 µH
Figures 2A and 2B represent examples of connection of these loops to the detector.
As alternative:
The detectors are suitable for loops made up with an insulated copper wire with a cross-section
of at least 0.5 sq. mm.
Preferably use twisted copper wires with at least 20 twists per metre to connect the detector to
the loop. Jointing in the loop wires and in the twisted cable is not recommended.
If unavoidable, jointings should be welded and sealed in an appropriate watertight junction box
to ensure best detector operation.
If the wires used for the twisted cable are especially long or in proximity to other power cables,
shielding of said wires is recommended.
Earthing of the shield should only be made at the extremity of the detector.
Excepting special cases, the detection loops should be rectangular.
Install with the longer sides placed at right angles in the direction of vehicle movement.
These sides should ideally be kept at a meter one from the other.
Loop length is a function of the width of the road surface to be monitored.
A distance of no more than 300 mm is recommended between the loop and each edge of the
road surface.
For loops running over a perimeter of more than ten metres two wire windings are normally
employed, while for loops with a lower perimeter three or more windings are required, and four
windings are required for loops with a perimeter below 6 metres.
In order to reduce possible troubles, adjacent loops should be so laid as to alternate three and
four windings.
All permanent loop components must be secured to the road surface (Fig. 1) in appropriate
grooves made using masonry cutting tools or the like.
A cross-cut at a 45° inclination must be made at the circuit angles so as to prevent the risk of
the loop cable being damaged in proximity to the apex of the right angles.
Nominal groove length: 10 ÷ 15 mm.
Nominal groove depth: 30 ÷ 50 mm.
The loop-detector connection cable must also be laid in an appropriate groove running from one
of the circuit angles along the circuit perimeter to the road surface edge.
To ensure wiring continuity between the loop and connection cable allow for a long enough lead
to reach as far as the detector before inserting the cable inside the loop groove.
After laying the required number of wire windings in the groove along the loop perimeter, route
the wire towards the road edge through the connection cable groove.
It is advisable that connection cable length not exceed 100 metres.
As loop sensitivity diminishes proportionally to connection cable length the latter should be kept
as short as possible.
Loops are secured to road surface by means of a quick-drying compound containing epoxy resin
or asphalt mastic applied hot.
MAIN CHARACTERISTICS
- Magnetic loop connection
- Easy operation by means of dip-switch
- Two relay outputs
ACG9063
11÷26 Vac/dc
40 mA st.by - 95 mA max
Impulsive and/or presence
N.O./N.C. relay output - impulse adjustable from 0,2 to 1 s
N.O./N.C. relay output - only in presence
0,5 A @ 230 Vac
Led for presence of power supply - Led for state testing of the loop - Led for defective loop
-20 ÷ +55 °C
80 x 79 x 40 / 110 gr
15 ÷ 1500 μH
1 m
2x1 o 3x0,5
2 m
3x2 o 4x1 o 5x0,5
8
ACG9060
200÷260 Vac 50 Hz
15 mA st.by - 50 mA max
1
2
80 x 79 x 40 / 200 gr
10 ÷ 15 mm
loop
Detector
5 m
(recommended)
Cable 2 x 0,5 mm 2 , l = 15 m
(conform to CEI 20-22 II)
2 m
5 m
(recommended)
Cable 2 x 0,5 mm
(conform to CEI 20-22 II)
3 m
30 ÷ 50 mm
1
2A
Detector
2 , l = 15 m
2B