Door
Feed Cable in to
20mm Plastic Conduit
LOOP
min. 1.2m
LOOP
min. 1.2m
1.0m
2.0m
Loop Cable:
Loop Size:
No. of Turns in Loop:
Loop Slot:
Feeder Cable:
Loop Placement:
Two or More Loops:
Typical Example of Loop Installation
Concrete/Tarmac
5-10mm
Sealant
25-50mm
Loop
Cable
Plastic Conduit with
Loop Cable Inside
Base
Sand
Block
Block Paving
Installing a Loop
Rubberised insulated wire of 0.75-1.50mm² (awg 20 - awg 16), preferably multi-stranded.
Note:- High bed vehicles require larger loops.
Recommended depth to top of loop cable 25-50mm. (Maximum depth 65mm)
Loop slot MUST be sealed after cable has been installed and tested.
Use a flexible, weather proof sealant (i.e. Hot bitumen, Rubberised bitumen sealant).
Caution! Never use cement/concrete, etc...
The feeder cable MUST be twisted a minimum 10 times per meter & can be up to 100m long.
The loop must be placed at least 5m away from high tension cables and at least 1m away
from low tension cables. If the loop is placed in an area with reinforcing iron (typically a
concrete floor), the loop must be placed at least 50mm above the reinforcement.
If the detector is used for detecting high vehicles (lorries etc.) use only one loop for each
detector, otherwise it is possible to connect two loops to a single detector. Series coupling
the loops will give the largest sensitivity, parallel coupling gives the fastest reaction.
No. of Turns
6
5
4
3
Loop Circumference
2 - 4m
4 - 7m
7 - 12m
12 - 25m
VEK M2H LOOP DETECTOR MODULE
(STOCK CODE: 37-4078)
Title:- Drawing No:-
Revision No:-
Drawn By:-
Checked By:-
Page No:-
Rev Date:-
Date:-
Appr' By:-
Stuart Rd, Manor Park, Runcorn, Cheshire, WA7 1TS
T: +44 (0)1928 579050
www.linkcontrols.co.uk
F: +44 (0)1928 579259
sales@linkcontrols.co.uk
Link Controls
MFZ
LC-1687
26/11/99
B 25/02/09
2 of 2
S.B.P.
R.A.H. S.L.
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