Combined detectors are designed for installation in places where it is impossible to unambiguously predict the occurrence and development of a fire (primary occurrence of smoke or temperature increase). Smoke chamber dust compensation ensures that the detector sensitivity remains at the set level and the absence of false alarms, and also significantly increases the operating periods between maintenance. The detector complies with TR EAEU 043/2017.
The detectors are designed for operation at an ambient temperature from minus 40°C to plus 75°C, climatic version UHL category 2, relative humidity 93% at a temperature not exceeding 400C. Atmospheric pressure from 84 to 106.7 kPa. Seals and connections of structural elements of the detector housing provide the degree of protection in accordance with GOST 14254-2015 (IEC 60529:2013) "Degree of protection provided by shells (IP code)" of the switching compartment - not lower than IP67; smoke chamber - not lower than IP31.
Case material - corrosion-resistant stainless steel 12X18H10T.
According to the method of protecting a person from electric shock, the detector corresponds to class III according to GOST 50571.3.
The detectors comply with the norms and requirements of electromagnetic compatibility in accordance with GOST R 53325 with a degree of test severity 2. Radio interference from the detector does not exceed the standards established by GOST 30805.22 for class B equipment.
IP 212/101-116.4-A1 Redoubt MK-OP - N is a maximum-differential action detector and can be used in short circuit alarm loops (parallel connection).
The detectors are equipped with two cable glands of the KV, KV series TU 27.33.13-359-81888935-2019. Connecting thread of cable glands M20x1.5. Cable glands allow you to enter and exit round cables of various diameters:
| Degree of protection of the shell | IP67 / IP31 |
| Operating temperature range | -40°С .. +75°С |
| Supply voltage range | from 10 to 30V |
| Consumption current: | |
| in standby mode, no more | no more than 0.25 mA |
| in alarm mode, no more | no more than 20 mA±3% or 5mA±1% |
| Detector sensitivity | |
| smoke detector detector | not less than 0.05 and not more than 0.2 dB/m |
| thermal at ambient (54…65) °С and more | corresponds to class A1 clause 4.5.1.2 GOST 53325 tab. 4.1 |
| Detector response time, no more | 10 sec |
| The value of electrical insulation resistance | not less than 20 MOhm |
| The value of the dielectric strength of the insulation | not less than 0.75 kV |
| Standby MTBF | not less than 60000 h |
| Average service life | at least 10 years |
| Housing material | stainless steel |
| Weight | no more than 4.7 kg |
| Dimensions without cable glands | 150x146x105mm |
Table 1.
| Working mode | Indication | State |
| Fire | continuous glow | Detector activation |
| Duty | Intermittent glow with a period of 4 seconds. | normal operation |
| dustiness | Double flashes with a period of 1 sec. | Operable, but service required: clean the chamber |
An example of the designation of the detector when ordering:
| IP | X 1 X 2 X 3 | X 3 | – 116.4 – | X 4 | Redoubt | x5 | x6 | X7 |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
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