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1 Product overview

1.1 Wireless hand-held fire Detector «Ladoga IPR-RK» (hereinafter, 

the Detector) is designed for remote manual activation of a fire alarm 
signal at the control panel (hereinafter, the CP) via wireless two-way 
communication by the «Rielta-Contact-R

»

 protocol.

1.2 The Detector generates the fire alarm signal (responds) upon 

pressing the actuator.

1.3 The Detector operates within 433.05 – 434.79 MHz frequency 

range. The radiated power of the Detector does not exceed 10 mW.

1.4 Two frequencies are used for wireless signal exchange with the 

CP: the main operating frequency and the reserve one. The Detector 
switches to the reserve operating frequency automatically.

1.5 The wireless signal exchange is initiated by the Detector with the 

following rates: every 10 sec, 15 sec, 30 sec, 60 sec, 300 sec, 600 sec. 
Data exchange rates are chosen during the Detector logging in CP. The 
alarm messages are transmitted immediately. 

1.6 The Detector is powered by two lithium batteries (the main one 

and the backup one) type СR123A.

1.7 The Detector state is displayed by two LED indicators: red and 

green.

1.8 At the scheduled communication sessions the following messages 

can be delivered to CP:

- «Norm

»

 – in absence of other types of messages;

- «Fire

»

 – upon the actuator pressing;

- «Tamper

»

 – under the wall or case tampering;

- «Main power supply low battery

»

 – if the main battery power supply 

voltage drops below (2,1±1)

 

V;

- «Backup power supply low battery

»

 – if the reserve battery power 

supply voltage drops below (2,1±1) V.

1.9 The Detector ensures safe operation continuously around the clock.
1.10 The Detector is resistant to the influence of electrical fast transient 

bursts, electrostatic discharges and radio-frequency electromagnetic 
fields.

1.11 The Detector ensures safe operation when subjected to:
- vibration at 0.5 g acceleration within 10 to 150 Hz frequency range;
- straight mechanical blows with impact energy up to 1.9 J.

2 Specifications

Table 1

Parameter

Value

Operating temperature

minus 20 ... +55 °С

Permissible relative air humidity at temperature 
+40 °С

up to 93 %

Dimensions, maximum

106 х 98 х 70 mm

Weight of the Detector (without batteries), 
maximum

0,2 kg

IP rating

IP54

Operation time upon preset wireless signal 
exchange rate 60 sec or more, normal climatic 
conditions and indication disabled, not less than:

- from the main battery
- from the reserve battery

10 years

2 months

Average service life, not less than

10 years

3 Scope of Delivery

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

Name

Qnt.

Wireless Hand-held Fire Detector «Ladoga IPR-RK»
Key
Screw 3-3х30.016 
Nylon screw plug «SORMAT» NAT 5x25
СR123A lithium power supply battery
Wireless Hand-held Fire Detector «Ladoga IPR-RK». Installation 
Guide

1 pc.
1 pc.

3 pcs.
3 pcs.

2 pc.

1 copy

* - installed in case

4 Design of the Detector

The Detector consists of case and printed circuit board (PCB). The 

case of the Detector comprises base, actuator assembly unit and 
transparent protective cover. On the PCB front side (1) the following 
elements are located: LED indicators (2), antenna (3), RESET contacts 
(5), case tamper (6), main power supply battery holder (7), reserve 
power supply battery holder (8) . Wall tamper is located on the reverse 
side of the PCB. The PCB is fastened to the base of the Detector case 
by latch (4). On the base the following elements are located: sealing 
point (9), two main fixing holes (10) and additional openable hole for 
fixing (12). An additional openable fixing hole (11) can be used for 
wall tamper control. 

Installation Guide

Figure 1

a) The base with the PCB 

installed

b) The base without PCB

5 LED Indication

LED indicators modes are listed in the Table 3.
Table 3

The Detector State

Indication

Notes

«

Binding» mode

Green LED indicator 

periodical blinking

«

Binding» procedure 

finishing 

Red LED indicator lighting 

for 2 – 3 sec

The Detector 

logging in the CP 

«

Identification» indication

Red and green indicators 

alternate blinking 

«

Fire» message delivery 

confirmation

Green LED indicator 

lighting for 2 – 3 sec

Confirmation from 

the CP is received

«

Fire»

Red LED indicator blinking 

with 2 sec period

After 

«

Fire» 

message delivery 

confirmation

No communication with 

CP

Red LED indicator blinking 

with 20 sec period

Communication quality 

appraising

See sect. 

«

Communication Quality Appraising» 

«

Norm»

Green LED indicator 

short blinking with 20 sec 

period

«

Tamper» message 

absence

«Identification

»

 indication is switched on upon the relevant command  

from CP and stays on for 15 minutes under the condition of «Fire

»

 

message absence or until case is opened.

6 Binding with the CP

The binding procedure is intended for logging of the Detector in the 

CP and for transmission of service information to it.

6.1 Prepare the CP for the Detector logging in accordance to the CP 

Installation Guide.

6.2 At first install the backup power supply battery into the holder (8), 

and then install the main power supply battery into the holder (7), or 
remove isolators.

6.3 LED indicator blinking green means, that the Detector is in the 

«Binding

»

 mode.

6.4 In case of the mentioned above LED indication absence, short-

circuit the RESET contacts (5) for 2 – 3 sec.

6.5 After a successful binding with the CP, the red LED indicator is 

lighting red for 2 – 3 sec.

6.6 The time during which the Detector operates in the «Binding» 

mode is limited to 100 sec. To restart the «Binding» mode, short-circuit 
the RESET contacts for 2 – 3 sec.

7 Switching ON and Setting Up

7.1 To activate the Detector, open transparent cover and press the 

actuator. In the meantime the actuator recesses and fixes itself in a 
pressed position, and the Detector generates «Fire

»

 message. Message 

delivery confirmation from the CP and further Detector operation in the 
«Fire

»

 generation mode is accompanied by the relevant LED indication 

listed in the Table 3.

WIRELESS HAND-HELD FIRE

DETECTOR 

«Ladoga IPR-RK»

11

9

10

12

2

7

4

5
6

IPR-RK V10.1

RESET

MAIN

BACKUP

3

+

+

8

1

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