PIR-018
PASSIVE INFRARED DETECTOR
2824-00005 Page 6 of 10
Interface Module PIR-IF485A and Installation Software
The Installation Software is very useful for alignment and signal check during setting up and routine maintenance. It will
indicate the amplitudes generated by wanted as well as unwanted targets and help setting the gain control correctly during
walk tests and also show the magnitude of disturbance signals. The installation software is to be installed on a PC; an
interface module is required to convert RS 232 to RS 485. The information for installation and signal monitoring is dis played
on the screen of the PC. Refer to annex 3 for more details.
If more than one detector is connected to the same RS 485 communication bus, each detector needs to have a different
identification number.
The interface module PIR-IF485A is available as an
accessory and is pre-configured and equipped with the
necessary connectors to be operated with any detector
of the IR 450 Series without the need for external power
supply or other connections.
The input cable is 4.0 m long and is terminated with a
connector fitting into the test socket on the connector
board of the detector.
The connection to the PC’s COM port is with a standard
3.0 m cable (supplied with the PIR-IF485A).
Total weight of the PIR-IF485A with cables is app. 400g.
Maintenance
The detector has been designed to be virtually
maintenance free but the following precautions are
recommended:
1)
Visual inspection of the front window
for
accumulation of dirt on the outer surface or damage at intervals of app. 6 months. Clean the surface with a paper tissue
and avoid rubbing dirt into the surface. Use the same precautions as for a camera lens.
2)
Visual inspection of the inside
for ingress of water is recommended at intervals of 6 to 12 months or whenever the unit
is opened for adjustments or tests. Make sure that the sealing gasket is in place before closing the cover tightly again.
3)
Inspection is recommended following extreme conditions
such as snow storms, sand storms, hail etc. to make sure
that nothing has been damaged and the sensitivity is not reduced by accumulation of snow, sand or dirt on the front
window. Snow or dust in front of the window should be removed by hand or by using of a soft instrument (e.g. a wooden
stick).
General Comment on the PIR-018
•
Despite the advanced design and state-of-the-art features of the PIR-018 it is in the nature of a Passive Infrared Detector
that an absolute detection probability and freedom from nuisance alarms cannot be achieved,
masking of the PIR-018
cannot be excluded
.
•
Detection is a function of thermal contrast, speed and size of a target crossing the field of view. Contrast conditions can
vary significantly in the course of the day and year.
•
Detection depends also on the sensitivity settings, the exact aiming and the prevailing weather conditions as well as the
nature of the target and background.
