Annunciators of the Orbita MK M2 S series are designed to give alarm light signals in fire and security alarm systems, as well as to indicate equipment operation modes and attract the attention of personnel in emergency situations. Annunciators can be used with any fire and burglar alarm control and monitoring devices.Type and level of protection 1 Ex db IIC T 6 Gb / Ex tb IIIC T 85 ° C Db, PB Ex db I Mb/ 1 Ex db IIC T6 Gb/Ex tb IIIC T85 °C Db according to GOST R IEC 60079-0-2011 .Annunciators can be used in hazardous areas and rooms of classes 1 and 2 in accordance with GOST IEC 60079-10-1-2011 and GOST IEC 60079-14-2011.
The sirens differ in supply voltage:
Distinctive features:
The posts are equipped with explosion-proof cable glands of the KV, KV series TU 27.33.13-138-81888935-2019.Connecting thread of cable glands M20x1.5.Cable glands allow you to enter and exit a round cable of various diameters
Operating modes
| Alert | Mode | Parameters | |
| light | 1 step | strobe - flashes; strobe - flashes; blink 1; flashing 2; flash 3; flashing 4; permanent; | 70 ms at 1.3Hz 70 ms at 2.6Hz frequency 0.75Hz; frequency 1.5Hz; frequency 3Hz; frequency 6Hz; constant burning; |
| 2 step | strobe - flashes; strobe - flashes; blink 1; flashing 2; flash 3; flashing 4 permanent; | 70 ms at 1.3Hz 70 ms at 2.6Hz frequency 0.75Hz; frequency 1.5Hz; frequency 3Hz; frequency 6Hz; constant burning; |
The operating mode is selected by the user independently using dip-switches.Single-stage or two-stage modes are available. The second stage is switched on automatically after a fixed time of 3 minutes, or by means of an external control voltage.The type of alarm signal is selected by the user independently for each stage using dip-switches.
7 operating modes are possible: blinking with frequencies 0.75Hz, 1.5, 3, 6Hz; 70ms strobe flash at 1.3Hz; 70ms strobe flash at 2.6Hz; constant glow.In the "strobe" mode, the brightness is 2 times higher than the constant glow or flashing modes.
| Explosion protection marking | 1 Ex db IIC T6 Gb/Ex tb IIIC T85 °C Db, |
| Sheath protection degree | IP67 |
| Climatic performance | UHL1 |
| Operating temperature range | -60С<Ta<+70С |
| Rated supply voltage | 12V - 24V direct current; 220V AC |
| Consumption current, no more | 1.7Adc; 0.12Aac |
| Operating modes | single stage two-stage |
| Light Alert Color | Red (default); Green; Yellow; Blue; White; |
| Light source type | high brightness LED |
| Light intensity, not less | 300 cd |
| Housing material | Aluminium alloy Stainless steel |
| Overall dimensions (LxWxH), not more than: | 290x150x150 |
| Weight, not more than: Aluminium alloy stainless steel | 2.5kg 5kg |
Designation system when ordering
| ORBIT MK M2 | WITH | - A - | TO |
| one | 2 | 3 | 4 |
1 - a series of detectors;
2 - notification type:
C - light;
3 - body material:
A - aluminum alloy;
H - corrosion-resistant steel 12X18H10T;
4 - fitting type:
B - for an armored cable with an outer passage diameter of 12.5-20.9 mm;
T3/4 - for laying a cable in a pipe with a connecting thread G3/4-B, the diameter of the outer insulation of the cable is 8 - 12 mm;
T1/2 - for laying a cable in a pipe with a connecting thread G1/2-B, outer cable insulation diameter 8 - 10 mm;
K - for a cable for open laying with an outer insulation diameter of 6.5-13.9 mm;
KM15 - for a cable or armored cable in a RZ-TsKh-15mm metal hose;
KM20 - for a cable or armored cable in a RZ-TsKh-20mm metal hose.
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