IP 212-45

IP 212-45
IP 212-45
IP 212-45 electrooptical smoke detector is designed early detection of fire accompanied with low smoke concentration in various buildings and facilities enclosed rooms. Detector power supply and Fire signal transmission is provided via double-wire alarm loop and is accompanied with optical indicator activation at detector tripping. The detector does not respond to temperature, humidity changes and to the presence of flame and natural or artificial light.
Power supply 9 to 30 V
Current consumption in standby mode no more than 45μA
The detector sensitivity complies the  ambient smoke content attenuating light flux
0.05 to 0.2 dB/m
Activation delay no more than 9 sec
The detector resistance in Fire mode, no more than
1 kOhm
LED flashing frequency:
in stand-by mode
in "Fire" mode

1 per 5 sec.
steady on
The detector remains functional when affected by
air flow rate
background luminance

up to 10 m/s
up to 12000 lx
Noise resistance (as per GOST R 53325): 4 degree
Ingress protection rating IP 30
Overall dimensions Ø9446 mm
Detector weight 210 g
Operating temperature range from -45 to +55 C
Average service life at least 10 years

The Marko series modern electrooptical smoke detector with detector state visual indication has a European design of the housing, and screw-free contacts.

Improved end-user performance:

  • Unique self-design microcircuit is used in the detector for optoelectronic coupler signals digital processing;
  • new and improved dust compensation algorithm which increases interference resistance and eliminates false alarms;
  • horizontal and vertical smoke inlet ensures timely detector activation when first signs of smoke appear;
  • LED flashing in stand-by mode;
  • small size;
  • wide range of feeding voltage from 9 to 30 V;
  • low current consumption - at most 0.045 mA;
  • easy testing provided by TEST button makes the technicians task as easy as possible
  • detector's housing is made of impact- and wear-resistant material ABS.

The detector is intended for 24 hours uninterrupted operation with control and indicating panels ensuring supply voltage in the alarm loop within the range of 9 to 30V, which accept Fire signal in the form of detector internal resistance hopping decrease in normal polarity up to the value of 1000 Ohm, such as Granit, Grand Magistr, VERS PK, Signal-20, Signal-20P, etc.


The detector performs the following functions:

  • smoke concentration measurement;
  • digital processing of the measurement results based on special algorithms and making a decision on the Fire signal generation;
  • internal resistance reduce in Fire mode to 1 kOhm;
  • functioning test using special device;
  • Operating modes LED indication.

The Fire signal remains active when smoke exposure to the detector stops. Reset is performed using receiving and control device by detector power switching off at least 2 sec.

Connection of the detector and the base is of plug-type. Circular contacts allow mounting of the detector without orientation with respect to the base. The base is unified, any Rubezh detector may be installed without the need of reinstallation. The AL minus wire is connected to short-circuited by the 3 and 4 detector contacts. This provides AL failure signal sending to FACIE when the detector is disconnected.

The detector may be installed on suspended ceiling using special base with mounting ring.

Screw-free mounting method using clamp-button ensures reliable contact and easy installation.

In case of detector connection to receiving and control panel AL with activated detectors quantity determination function (double-trip function), the auxiliary resistor Raux is used. The auxiliary resistor rating depends on receiving and control panel connected and is designed using device circuit loop resistance in Fire and Warning modes as an input data. Instead of auxiliary resistor, US-01 compatibilizer may be used. It is plugged into the detector's base and has a resistor (rating to be determined at ordering) and a terminal block.

The detector may operate with four-wire connection devices. For this purpose, US-02 compatibilizer is used. This compatibilizer shall be mounted within detector's standard base.

The detector provides connection with remote optical alarm device.


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