![Twintec 1081 Installation Manual Download Page 7](http://html1.mh-extra.com/html/twintec/1081/1081_installation-manual_1184577007.webp)
496349 Issue 1
7 of 10
Testing
Once the detector is installed and the PIR lens pattern adjusted, both the PIR
and MW sensors must be walk tested to ensure that the required area is fully
protected.
Note: If Remote LED Test Enable is used, ensure that the control panel or test
switch is in the Walk Test position before proceeding.
Microwave Surveillance
The microwave sensor works best with the sensitivity adjusted to the mini-
mum necessary to protect the required area.
1.
With the detector cover removed, squeeze the lens carrier handles and
remove the lens carrier assembly.
2.
Place the shorting link over the Test pins. Set the MW sensitivity
potentiometer to minimum sensitivity. Ensure that the Test jumper and
MW jumpers are fitted.
3.
Replace the lens carrier and refit the detector cover.
4.
Stand outside the protected area and wait until all LEDs are extin-
guished.
5.
Walk into the protected area and stop when the yellow (MW) LED
illuminates. Mark this position.
6.
Repeat steps 4 and 5 in other parts of the protected area until the
microwave pattern has been satisfactorily mapped.
7.
If necessary, increase the microwave sensitivity until the area is com-
pletely covered.
PIR Surveillance
1.
Remove the detector cover and lens carrier assembly and ensure that
the Test jumper and PIR jumpers are fitted and the MW link is removed.
2.
Replace the lens carrier and refit the detector cover.
3.
Stand outside the protected area and wait until all LEDs are extin-
guished.
4.
Walk into the protected area and stop when the green (PIR) LED is
illuminated. Mark this position.
5.
Repeat steps 3 and 4 for other parts of the protected area until the
complete PIR pattern has been mapped.
6.
Ensure that the detection pattern is free from potential problems. If
necessary, re-adjust the lens (see “PIR Lens Adjustment) or mask off
lens segment (see “Technical Specification”) or relocate the detector.
1081/1082