Link Controls VEK M2H Quick Start Manual page 2

Typical Example of Loop Installation
LOOP
min. 1.2m
Door
min. 1.2m
LOOP
1.0m
2.0m
Concrete/Tarmac
Sealant
Loop
Cable
5-10mm
Link Controls
Stuart Rd, Manor Park, Runcorn, Cheshire, WA7 1TS
T: +44 (0)1928 579050 F: +44 (0)1928 579259
www.linkcontrols.co.uk sales@linkcontrols.co.uk
Feed Cable in to
20mm Plastic Conduit
Block Paving
Block
Plastic Conduit with
Sand Loop Cable Inside
Base
Title:-
MFZ
Installing a Loop
Loop Cable: Rubberised insulated wire of 0.75-1.50mm² (awg 20 - awg 16), preferably multi-stranded.
Loop Size: Note:- High bed vehicles require larger loops.
No. of Turns in Loop:
Loop Circumference
2 - 4m
4 - 7m
7 - 12m
12 - 25m
Loop Slot: 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...
Feeder Cable: The feeder cable MUST be twisted a minimum 10 times per meter & can be up to 100m long.
Loop Placement: 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.
Two or More Loops: 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.
VEK M2H LOOP DETECTOR MODULE
(STOCK CODE: 37-4078)
No. of Turns
6
5
4
3
Drawing No:- LC-1687
Revision No:- B
Drawn By:- S.B.P.
Checked By:- R.A.H.
Page No:- 2 of 2
Rev Date:- 25/02/09
Date:- 26/11/99
Appr' By:- S.L.