WIRELESS INDEPENDENT
SMOKE DETECTOR
«Ladoga PD-RK-A»
Installation Guide
1 General Information
1.1 The wireless independent smoke Detector «Ladoga PD-RK-A» (hereinafter,
the Detector) is intended for:
- detecting ignitions accompanied by smoke;
- sound announcement about the fire accident;
- «Fire» message generating and sending within the 433.05 to 434.79 MHz
frequency range via two-way communication by the «Rielta-Сontaсt-R» exchange
protocol.
Operating principle of the Detector is based on the detection of the optical
radiation reflected from smoke particles.
1.2 The Detector is designed for operation as a component of a system,
that is operated by any control panel (hereinafter, CP) supporting the «Rielta-
Contact-R» wireless exchange protocol or in stand-alone mode without the CP.
1.3 After ignition detection, the Detector generates Fire alarm message and
transmit’s it to the CP (in case of operation with the CP), switches on light state
indication and sound announcement.
1.4 In case of operation in independent mode, Norm state restoration and
sound announcement takes place after smoke content reducing lower the
threshold.
1.5 In case of operation with a CP, Norm state restoration and sound
announcement is executed after smoke content reducing lower the threshold
and getting «RESET» command from the CP.
1.6 In case operation with a CP, the Detector provides possibility to switch
ON announcement by the relevant command from the CP, as well as to inhibit
announcement automatic switching ON when ignition is detected.
1.7 The Detector provides pulse and continues modes of sound announcement.
Mode of operation is configured by means of the CP.
1.8 The Detector provides compensation of the optical smoke chamber dust
content and controls it’s operability.
1.9 Radio signals exchange with the CP is fulfilled via the wireless two-way
communication in 433.05 – 434.79 MHz frequency range. The Detector provides
automatical switch to a backup operating frequency in case of radio-frequency
interference at the main one.
1.10 Transmitter power does not exceed 10 mW.
1.11 The Detector comprises functionality testing module with speed of
response not more than 5 s.
1.12 The Detector status is displayed by two built-in LED indicators.
1.13 The Detector controls it’s removal from the base.
1.14 The Detector is powered from two galvanic power supply batteries CR123A
type with nominal voltage 3 V: the main and backup ones.
1.15 Ignition is detected if at least one battery is in working order.
1.16 During operation in independent mode in case of any battery failure,
short sound signal is generated once in 40 s.
1.17 The Detector generates and transmits via wireless communication channel
the following messages:
- «Norm» – normal state;
- «Fire alarm» – ignition is detected;
- «Optical smoke chamber dusting» – upon reaching the dust concentration
threshold;
- «Failure» – circuit fault or sensitivity drop;
- «Main power-supply low-battery» – if power-supply voltage drops below
2.4 V ± 0.2;
- «Backup power-supply low-battery» – if power-supply voltage drops below
2.4 V ± 0.2;
- «Tamper» – in case of the Detector removal from the base.
1.18 The following rates of radio exchange may be assigned: 10 s,
15 s, 30 s, 60 s, 2 min or 5 min by the command from the CP. Messages about
ignition and failures are transmitted immediately.
1.19 The Detector provides safe operation in a standby mode* being powered
by:
- main power-supply battery: not less than 5 years;
- backup power-supply battery: not less than 2 months.
1.20 The Detector designed to operate in closed areas continuously around
the clock.
2 Features
Table1
Parameter
Value
Threshold of sensitivity
0.16 ± 0.03 dB/m
Acoustic pressure level at 1 m distance from the
Detector, not less than, not less than
85 dB
Generated sound alarm signals frequency
2 … 5 kHz
Consumption current in standby mode (without radio
exchange), not more than
20
μ
A
Consumption current in alarm mode and sound
announcement, not more than
100 mA
Operating temperature
minus 20 °C +55 °C
Table 1, continuation
Parameter
Value
Permissible humidity (at a temperature 40 °C)
93 %
IP rating
IP30
Dimensions, not more than
Ø
125 х 70 mm
Weight, not more
0.2 kg
Average service life
10 years
3 Scope of Delivery
Each Detector unit package contains the items listed in Table 2.
Table 2
Name
QNT
Wireless independent smoke Detector «Ladoga PD-RK-A»
Screw 3-3x30.016
Wall plug NAT 5x25 SORMAT
CR123A lithium power-supply battery
Wireless independent smoke Detector «Ladoga PD-RK-A». Installation Guide
1 pc.
2 pcs.
2 pcs.
2 pcs.
1 copy
4 Design of the Detector
* under conditions of: radio sessions interval of at least 30 s,
radio-interference absence and normal climate parameters
The Detector outside view is shown in Figure 1.
The Detector comprises:
- case with optical smoke chamber (1);
- base (2);
- two LED indicators (3);
- main power supply battery (8);
- backup power supply battery (6);
- operability control button «TEST» (4);
- pin contacts «RESET» (5);
- tamper (removal from the base control) (7).
5 LED Indication
The Detector displays it’s state in accordance with Table 3.
Table 3
Detector Status
Indication
Notes
«Binding»
Green LED indicator blinks intermittentl
«Binding completed»
Single-shot (2 s) green LED lighting
«Fire»
Red LED indicator blinks intermittently at
1 Hz frequency
«Norm»
Green LED blinks once per 15 s
«Dusting»
Red LED blinks once per 15 s
Independent
operation
«Power supply failure»
Red LED switching on once per
15 s and sound signal – once per
30 s
Operation with
the CP
No communication with
the CP
Red LED indicator blinks once per
15 s
Operation with
the CP
Communication quality
appraisal «Excellent»
Three blinks of green LED
Operation with
the CP
Communication quality
appraisal «Good»
Two blinks of green LED
Operation with
the CP
Communication quality
appraisal «Communication
established»
One blink of green LED
Operation with
the CP
Communication quality
appraisal
«No communication»
Four blinks of green LED
Operation with
the CP
Figure 1
1
2
3
4
5
6
7
8
TEST
BACKUP
RESET
MAIN
