6-2.DIP Switch Adjustment
1.Walk Test
6. Switch Setup
7.OPERATION TEST
1.Turn walk test switch on.
2.Check and adjust the detection area.
6-1.Sensitivity Adjustment
Sensitivity Select Switch
(L,M,H)
When greater sensitivity is desired, select
"H". When the installation site is poor (bad
conditions) select "L".
VX-402R has a multi-level detection pattern (from side view). A
heat source beyond the detection area may cause the detector to
issue a false alarm by reflecting off the ground. Examples of
reflective ground is water (puddle), wet road, smooth surface
concrete and asphalt road.
1) Please adjust the detection length to
position B. The detection length will be
around 8m (27ft) which is rather shorter
than ideal length but can remove the
chance of false detection.
IMPORTANT!
When the car or person goes near the detection area (a), please adjust the detection area 1.5m to 2m
(5ft to 7ft) shorter than movement area (b) and confirm by walk test. This is because, the actual
detection area may change from 1.5m to 2m (5ft to 7ft) due to the environmental thermal conditions.
The detection area might increase when there is a
big temperature difference between the moving
object and the background.
If the detection length adjusted to position A[12m (40ft)],
there is a possibility to detect the car, depending on the
environmental thermal conditions.
Approx.8m(27ft)
b
Approx.12m(40ft)
position B
a
In such case,
Confirm by walk test. Detects at area a and
no detection at area b.
2)
1)
2)
Example
(a)
(b)
Reflection rate is not 100% of course on the ground, however, if the heat source is strong and / or
reflection rate is high, detection distance will be longer than required and may detect unwanted
objects beyond. Select the detection ground position, according to the ground condition of the
installation site.
Approx.8m(27ft)
position B
Approx.13m(43ft)
Approx.12m(40ft)
position A
·ON (Walk Test Mode)
1)LED will light when detector is tripped.
2)Alarm will be generated instantly on detection.
·OFF (Battery Saving Mode)
1)LED is off.
1)Walk Test
2)Battery Saving Timer
3)Pulse Count
:Alarm output activations are limited by a timer selection -5 or 120
seconds. Even if there are continuous alarm events, the alarm output
operates only once in the timer period which can be between 5 and
120 seconds.
:Selectable pluse count 2 or 4.
120s 5s
OFF ON
4
2
2.Battery Saving Timer
3.Pulse Count
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General
Weight and Dimensions
