The alignment shown in Figure 7 is not recommended. If
the detector module is orientated at an angle of 90° to the
perimeter, the mounting wall may cut off short and medium
range beams. The long range beam will still detect an
intruder, however the wall can cause false alarms when
heated by sunlight.
Figure 8 shows the recommend alignment. The detector
module is orientated at a 55° angle to the perimeter, As a
result, short and medium range beams are parallel to the
perimeter, but the detection range along the perimeter is
reduced.
PROGRAMMING
To change any of the MX20 settings, change the
configuration of the programming switches (see Figure 9)
as required, switch 3 controls LED state, switch 2 controls
Pulse Count and switch 1 controls range.
Example: To change the range to 10 metres:
1.
Set switch 1 to OFF (down position)
PROGRAMMING CHART
Option
Switch Configuration
Range 10 metre
Switch 1 off
Range 20 metre
Switch 1 on
Pulse count 1
Switch 2 off
Pulse count 2
Switch 2 on
LED Off
Switch 3 off
LED On
Switch 3 on
PROGRAMMING OPTIONS DEFINITIONS
Pulse Count
This is the number of times the unit has to detect on both of
its sensors before signalling an output
LED
LED Off - LED disabled
LED On - LED signals a detection
WALK TEST
Note:
It is recommended that the detection LED be
enabled during walk test to aid in set up. The detection
LED lights each time the MX20 detects your presence.
Note: When you conduct a walk test, make sure that the
front cover is in place. Do not conduct walk tests with the
cover removed.
The range of the detector increases without the protective
front cover. Therefore the front cover must be fitted to
establish the correct beam pattern. Use programming chart
to adjust the range as necessary. Pan and tilt the lens
module over the field of view to obtain the correct coverage
area.
Detection Area
Programmable between 10 & 20
metres
Coverage
90° detection angle, 20m x 20m
coverage max
Adjustment
180° pan + 90° tilt
Fresnel Lens
10 zones for each Pyro pair, which
can be masked with curtain sliders
and special masking tape (supplied)
Customised
optics
Double silicon shielded quad
elements eliminates 50,000 lux of
white light
Outputs
Silent solid state magnetically
immune
No.1
N/OPEN
Volt free relay signal contact
24V AC/DC @50mA with an integral
25Ώ resistor
No.2
N/CLOSED
Volt free relay signal contact
24V AC/DC @ 50mA with an
integral 25Ώ resistor
Alarm 5 seconds
T
Tamper
Volt free, normally closed switch
output 12VDc @ 25mA
Tamper Switch-
es
Front and rear tamper switches;
case open and removal from wall
Pulse Count
1 -2
Power Input
9 - 15V dc
Current
8mA (12V nominal)
Operating
Temp.
-20°C to +55°C
Conformal coated electronics for
increased stability
Housing
High Impact ABS
Protection
Rating
IP55
Dimensions
84 x 106 x 72mm
Mounting
Height
Variable - optimum height 3 metres
Certifications
