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PASSIVE INFRARED DETECTOR 

WITH PET IMMUNITY

«

PYRONE-4D

» 

 

 

Installation Guide

Introduction

Passive infrared detector «Pyrone-4D» (hereinafter, the Detector) 

is intended for detecting intrusion into a closed protected space and 
generating an alarm message by the output relay contacts opening.

The Detector is resistant to the ambient light impact and radio 

interference.

The Detector is resistant to the interference of small animals (mice, 

rats, birds) in cells provided that the distance to them is not less than 
2,5 m.

The Detector provides wide range detection zone and does not 

generate false alarms caused by the movement of  short-haired pets 
weighting up to 20 kg with temperature contrast 8 °C (short-haired cats 
and dogs).

The Detector can be installed directly on a ceiling, wall or in a corner 

of a room.

Features of the Detector

- Dual-element pyrodetector
- Spherical lens
- Microprocessor-based signal processing
- Mounting height range – (2,3 ± 0,1) m
- Sensitivity adjustment

Specifications

Table 1 

Parameter

Value

Maximum detection range

10 m

Power supply, V DC

8-30 V

Current consumption, max

12 mA

Relay output contacts

NC 30 mА, 72 V

Alarm message duration, not less than

2 s

Detection zones

Wide range, 9 far, 5 near

Recommended mounting height

2.3 m

Ambient class

Boreal climate

Operating temperature 

from minus 20 °C to +50 °C

Permissible air humidity at +25 °С, %

95

IP-rating

IP41

Dimensions, maximum

90 х 60 х 50 mm

Weight, max

60 g

Average service life

8 years

Detection zone layout is shown in Figure 1.

The Detector provides no interferences to other comparable detectors, 

detectors of the other type and designation, as well as to any domestic 
radio equipment.

 The Detectors in their original packing may be shipped by any 

transport means in covered vehicles (in railway, cars, trucks, sealed 
heated compartments of aircraft, ship cargo holds, etc). 

0

2,3 m

90

о

10 m

10 m

Figure 1 – Detection Zone Layout

The Detector is resistant to:

а)  transport  jolting  with  the  acceleration  30  m/sec

2

 with impact 

frequency from 10 to 120 impacts/sec or 15000 impacts with the same 

acceleration;

b) the ambient temperature minus 50 … +50 °С;

c) relative air humidity  (95 ± 3) % at the ambient tempe35 °С.
After transportation under the conditions different to exploitation 

conditions the Detector shall be ready to operate after a maximum of 
six hours.

The Detector mean time to failure in standby mode is not less than 

60 000 hours.

Scope of Delivery

Each Detector unit package contains the items listed in Table 2.

   Table 2

Name

Qty

Passive infrared detector «Pyrone-4D»  
Swivel bracket
Passive infrared detector «Pyrone-4D». Installation Guide

1 pc.

1 pc.*

1 copy

* – available optionally

LED Indication

Red LED indicator located on the front cover is used for the Detector 

state representation in accordance with Table 3.
   Table 3

Message

LED indication state

«Warm-up time»

Indication is ON till the moment of the 

Detector readiness 

«Norm»

Indication is OFF

«Alarm»

LED indicator is lighting for 3 seconds

Choosing an Installation Place for the Detector 

The Detector is intended for usage in closed premises.
When choosing the Detector installation place, it is advisable to take 

note of the fact that the detection zone may be limited by non-transparent 
objects (curtains, houseplants, cabinets, bookcases, etc.), as well as 
glass and mesh partitions. There must be no windows, air conditioners, 
space heaters or heating radiators in the Detector visibility zone.

Installing the Detector 

- Push the lock by a screw-driver through the hole on the lower side 

of the Detector base (See Figure 2) and put off the cover. 

- In case of the Detector installation without swivel bracket put off the 

printed circuit board (PCB) by pushing the PCB locating pin.

- Drill the holes in base for wire installation and fastening of the 

Detector.

- Choose the installation place, mark out and drill the installation holes 

in the place of the Detector location with regard to the position of the 
holes in the Detector base (swivel bracket).

- Install the wire through the holes in the Detector, leave several 

centimeters of the mounting wire for plugging to leading-in socket.

- Mount the wire in accordance with Figure 3.
- Fasten the base on the chosen place of installation.
- Put the PCB on its place (if it was put off).
- Install the cover.

For wall 
mounting

Hole for the cover lock

Part plugs 
for the wire 
installation 
opening

For the lase 
fastening to 
swivel bracket

Curcuit board 
latch

For corner 
mounting

Figure 2 – Base

Figure 3 

-

12V+                      

To CP AL

Power 

supply

AL 

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