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Introduction
The PIR-018 is a highly sensitive Passive Infrared Detector designed for detection outdoors with a wide angle, volumetric
differential field of view. It incorporates microprocessor controlled signal processing including signal shape analysis,
adaptive threshold level by feedback of environmental effects, temperature compensation and rejection of disturbance
signals.
Sensitivity adjustments are done with DIP-Switches for each individual unit in function of the required detection range in order
to adapt to the specific needs of an installation.
In addition to the hardware settings, adjustments can be made in a two way communication mode and signals displayed on
a PC screen by using the optional installation software and RS 485 com munication interface module.
Mounting and Installation
The mounting structure should be stiff enough and resist to significant deflections in windy conditions. Movement of the PIR-
018 caused by vibrations or other movements will result in swings of the field of view covered by the PIR-018 and could
cause disturbance signals. These unwanted signals may lead to an increase of the alarm threshold level which reduces the
detection probability or in certain cases can lead to unwanted alarms.
The universal bracket is equally suited for wall mounting (using screws) or pole mounting (using steel bands through the
slots).
•
It is very important that the cover of the PIR-018 is securely tightened. It must be tightened with the two screws to the
point where it cannot be closed further with reasonable force. There will then be hardly any gap between the cover and
the bottom part of the housing (considerably less than 1 mm).
The cable entry assembly should not be changed without authorisation by the manufacturer. It is specifically designed to
allow air entry and exit so that the inside of the PIR-018 is always at atmospheric pressure. This prevents moisture being
sucked into the PIR-018 by drop of internal pressure likely to happen when rainfall rapidly cools down a unit warmed up in
the sun.
The nut on the cable entry assembly should be tightened to clamp the cable in place with the nylon grip. If the cable diameter
is too small to be held by the grip, insulation tape should be wound around the cable to increase the outside diameter to a
suitable size.
Connecting the PIR-018
For the definition of the connector board and terminal block see annex 1.
Alarm Signalling
There are three types of alarm signalling from the
•
one SPST potential-free relay contact
•
an open collector transistor to negative supply rail
•
an RS 485 two way communication link (see annex 2 for details)
The relay contact opens and the transistor switches to low resistance on alarm.
2824-00005
PIR-018
PASSIVE INFRARED DETECTOR
PIR-018
:
Page 1 of 10
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Related Manuals for ERNITEC PIR-018
Summary of Contents for ERNITEC PIR-018
- Page 1 • It is very important that the cover of the PIR-018 is securely tightened. It must be tightened with the two screws to the point where it cannot be closed further with reasonable force. There will then be hardly any gap between the cover and the bottom part of the housing (considerably less than 1 mm).
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Page 2: Tamper Switch
PASSIVE INFRARED DETECTOR Tamper Switch To detect attempts to open the PIR-018, a tamper switch is fitted for the cover. Its contact opens when the cover is opened and should be connected in series with the normally closed relay contact. - Page 3 PIR-018 PASSIVE INFRARED DETECTOR Typical horizontal alignment of PIR-018 Horizontal alignment should be done in a way to avoid unwanted signals being generated by targets (branches, bushes, fences) likely to be moved by wind (see Fig. 2 below). Movement within the field of view will reduce the sensitivity of the PIR- 018 by increasing the alarm threshold level and may lead to unwanted alarms.
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Page 4: Sensitivity Settings
Switch 3 „off“ „on“ *) Operation of the PIR-018 in this mode is possible but not recommended in outdoor applications as the nuisance alarm rate could increase significantly as a result of turbulences. Pulse Count The DIP – Switch 4 is used to set a pulse count delay for the alarm activation. This means that the alarm output is only activated after a pre-set number of pulses having reached the alarm criteria within a certain period of time. -
Page 5: Alarm Time
Internal Temperature Compensation The PIR-018 is detecting radiation differences of a target against its background. In the course of the day and year the contrast of a person will vary considerably and affect the signal strength. To compensate for this contrast variation, the PIR- 018 has internal temperature compensation with maximum sensitivity at app. -
Page 6: Maintenance
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 masking of the PIR-018 that an absolute detection probability and freedom from nuisance alarms cannot be achieved, cannot be excluded •... - Page 7 (e.g. VMD). Any liability for direct or indirect damage resulting from the use of the PIR-018 as a detection device is explicitly disclaimed. The information in this product manual is based on testing of samples taken at random from production and believed to be representative, E&OE.
- Page 8 Introduction The PIR-018 is equipped with a RS 485 interface for two-way communication between the detector and a PC or other control device. This communication link is used for detector set-up and remote adjustments as well as for signal monitoring (see also annex 3).
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Page 9: Installation Software
Installation Software for PIR-018 Procedure • Connect the PIR-018 to power and connect the interface module to the detector’s test socket or the terminal block as defined in annex 1. • Connect the output of the interface module with the serial COM port of the PC •... - Page 10 Notes • When walk testing the PIR-018 make sure to disable the ATD or to reset it by pressing [n] before each walk test, otherwise the detection will become poor due to gradual increase of the thresholds. •...
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