2
0
1
6
-1
1
8
Manual LC10-*
Product Description
3.3
Indicators and Operating Controls
3.3.1
LC10-1-*
LED indicator
LED signals the allocation state of the loop (Loop allocated = LED On). A fault in the loop due to
a short-circuit or lead breakage and loop inductance outside the permissible range is indicated
by flashing of LED.
DIP switches
It is possible to modify frequency, sensitivity and operating mode by using the DIP switch.
Sensitivity
The response sensitivity of the loop detector can be set in three stages by switches 3 and 4.
Frequency switches
The loop frequency can be set in four stages using the switches 1 and 2.
Operating mode switches
The following operating modes can be set with switches 5 and 6:
1
LED indicator
2
DIP switch
switch 3
switch 4
sensitivity
OFF
ON
low
ON
OFF
medium
ON
ON
high
Table 3.1
In the switch position "OFF", "OFF" the loop evaluation is switched off.
switch 1
switch 2
frequency
OFF
OFF
basic frequency f
ON
OFF
f - 10%
OFF
ON
f - 15%
ON
ON
f - 20%
Table 3.2
After actuation of the frequency switches 1 and 2 the loop must be readjusted with switches
3 and 4 set to "OFF", "OFF".
switch 7
switch 8
result
OFF
-
Pulse (0,8 s)when loop is allocated
ON
-
Pulse (0,8 s) when loop is abandoned
-
ON
Increased sensitivity (Boost)
Table 3.3
The increased sensitivity (Boost) is used for the detection of vehicles with high body
assemblies, e.g. HGVs.
2
1
ON
OFF
BOOS
T
M
ODE
FR
E
Q.
ON DIP
1
2
3
4
5
6
