Installation Guidelines - Viking Q-4 Installation Instructions Class Ii, Class Iii, And Class Iv Heavy-Duty Commercial Vehicular Slide Ga

VEHICULAR LOOP DETECTOR INSTALLATION VEHICULAR LOOP DETECTOR INSTALLATION
W W A A R R N N I I N N G G – – C C o o n n s s u u l l t t t t h h e e i i n n s s t t a a l l l l a a t t i i o o n n i i n n s s t t r r u u c c t t i i o o n n s s f f r r o o m m t t h h e e l l o o o o p p d d e e t t e e c c t t o o r r m m a a n n u u f f a a c c t t u u r r e e r r . . T T h h e e f f o o l l l l o o w w i i n n g g
s s t t a a t t e e m m e e n n t t s s a a r r e e p p r r o o v v i i d d e e d d a a s s a a g g u u i i d d e e b b u u t t d d i i f f f f e e r r e e n n t t r r e e q q u u i i r r e e m m e e n n t t s s m m a a y y b b e e r r e e q q u u i i r r e e d d b b y y t t h h e e
v v e e h h i i c c u u l l a a r r l l o o o o p p d d e e t t e e c c t t o o r r m m a a n n u u f f a a c c t t u u r r e e r r . .
Guidelines for Vehicular Loop Detector Installation
1. Prevent sharp corners in the geometry of the loop sensor.
2. Install the appropriate number of turns for your loop geometry based on the loop perimeter. Use
Table C (below) as a guide.
3. Use XLP (cross-linked-polyethylene) type of wire. This wire reduces the effects of moisture and
other environmental events in altering the functionality of the vehicular loop detector.
4. Twist the lead wire at least 6 turns per foot.
5. Use BACKER-ROD to minimize damage to the loop detector wire prior to using the sealant.
6. Place the loop detector wire and adjust the sensitivity of the vehicular loop detector unit in a
way to minimize the effects of the gate over the loop detector wire.
IMPORTANT – Some of the following parameters may affect the proper functionality of the
vehicular loop detector (consult the installation manual and the manufacturer of the
vehicular loop detector).
• Gate size,
• Number of turns in the loop sensor wire;
• Distance from the loop sensor wire to the gate either at the open or close position.
Saw Cut
TECHNICAL SUPPORT 1 800 908 0884
1" Min.
Sealant
Backer-Rod
Vehicular Loop
Detector Wire
(3 Turns Shown)
Continuously Wind Wire
in Loop Slot for the
Required Number of Loops
(2 Loops Shown)
Table C – Recommended Number of Turns
Perimeter in Feet
10
20
30-40
50-100
Provide Additional Saw Cuts
to Eliminate Sharp Corners
1/8" to 1/4" Saw Slot
Number of Turns
5
4
3
2
Twist Wire Outside the
Loop 6 Twists/Foot
Until Its Connection
to the Loop Detector
21