DC.
1.4 The alerter generates 4 types of alerting signals:
– LED indicators are ON;
– LED indicators are OFF;
– Piezoelectric acoustic emiter is ON;
– Piezoelectric acoustic emiter is OFF;
by means of voltage supply through control panel output relay
contacts or through open collector outputs.
1.5 The alerter is not considered to be a source of interference as
regards similar devices, alerters of other types and purposes, as
well as regards domestic radio equipment.
2 Specifications
Contrast perception of light signal
against ambient light background, Lx, min .................................. 500
Acoustic pressure level at 1m distance, dB .................................. 95
Generated signal frequency, kHz, min ............................................ 3
Light signal viewing angle,° ........................................................ 180
Supply voltage, V ......................................................... from 10 to 15
Current consumption, mA, max:
Light channel ................................................................................ 50
Sound channel ............................................................................ 100
Overall dimensions, mm ................................ diameter 90, height 31
Weight, kg .................................................................................. 0,08
Operating Conditions
Temperature range, °C ........................................ from -30 up to +55
Relative air humidity, % ....................................... up to 93 at +40 °С
without moisture condensation
3 Delivery Set
Light Alerter Astra-10 ver.3 ....................................................... 1 pcs
Screw 2-3x30 ............................................................................ 2 pcs
Dowel 5x25 ............................................................................... 2 pcs
User Instruction....................................................................... 1 copy
4 Structure
The alerter consists of a base, printed circuit board (PCB) with
radioelements, and removable cover (Figure 1).
Alerter’s design provides for possibility of installation on a wall surface.
Figure 1
5 Installation and Pre-Starting Procedures
5.1 Works on installation, mounting, maintenance and operation
of the alerter should be performed by qualified persons only.
5.2 After transportation in conditions differing from those of op-
eration keep the alerter packed under supposed operation conditions for at least 4 hours.
5.3 Installation Place
- Installation on a wall surface is allowed;
- Installation place should avoid exposure to sunlight;
- Inside permanent structures the preferable places of installation
are those well viewed from outside;
5.4 Installation Procedure:
5.4.1 Remove the cover by turning it counterclockwise with
respect to the base;
5.4.2 Make marking on installation surface by applying the
base;
5.4.3 Lead wires from power supply source through the wire
insertion holes on the base (see Figure 1); Squeeze an additional
wire insertion hole on the base if necessary.
5.4.4 Fix alerter’s base on the wall;
5.4.5 Connect power supply source’s wires to the appropriate
screw terminals in accordance with selected connection diagram
(see Figure 2):
Figure 2