The Orion MK VK Type-7 video camera is designed to convert an optical image into an electrical signal with subsequent transmission via cable networks to the operator’s post in the presence of an explosive atmosphere, as well as aggressive environments. The video camera allows you to record video both in the daytime and in conditions of insufficient visibility (twilight, night). 

Scope in ensuring protection, safety and control of technological processes of explosive and aggressive industries of oil, oil refining, petrochemical, gas and other complex technological industries, including in mines and mines. 

The Orion MK VK Type-7 video camera has an explosion protection of the type “explosion-proof enclosure“ d ””. Explosion protection marking 1Ex d IIС T6 Gb X / РВ Ex d I Mb X in accordance with GOST R IEC 60079-0-2011. The “X” in the marking means: do not expose the light transmitting part to mechanical stress. 

The video camera belongs to explosion-proof electrical equipment of groups I, II, III according to GOST R IEC 60079-0-2011 and is intended for use in underground workings of mines, mines and their ground structures, as well as in explosive areas of rooms and outdoor installations in accordance with the established explosion protection markings , the requirements of TR TS 012/2011, GOST R IEC 60079-14-2011, other regulatory documents governing the use of electrical equipment. 

Explosion-proof video camera is designed for operation at ambient temperature from minus 60 ° С to plus 50 ° С, type of climatic modification UHL1 in accordance with GOST 15150-69. Atmospheric pressure is from 84 to 106.7 kPa. The degree of protection of the shell is IP67 according to GOST 14254. 

Protection against electric shock according to GOST 12.2.07.0-75: class III. The metal case has protective grounding and working insulation from live parts. 

Camera body can be made of different materials:

• A - aluminum alloy;
• N - stainless steel;

The camcorder is supplied with two cable glands of the KV TU 3449-138-81888935-2016 series manufactured by LLC SMD Company of various designs: 

• K - under the cable for open laying;
• B - for armored cable;
• T1 / 2 - for laying the cable in a pipe with a connecting thread G1 / 2;
• T3 / 4 - for laying the cable in a pipe with a connecting thread G3 / 4;
• KM10 - for cable in a metal hose 10 mm;
• KM12 - for cable in a metal hose 12 mm;
• KM15 - for cable in a metal hose 15 mm;
• KM20 - for a cable in a metal hose of 20 mm.

Connecting thread of cable glands M20x1.5. Cable glands allow you to enter and output cables of circular cross-section with a diameter of 6.5-13.9 mm. 

Design 

Video cameras of the Orion MK VK series are used in conditions of possible exposure to aggressive environments of both natural and artificial nature. This equipment is explosion-proof, allowing you to completely eliminate the occurrence of an explosion due to the leakage of hazardous gases. 

Depending on the configuration, Orion MK VK is installed at a remote distance from the observation object, since high-definition cameras with built-in infrared illumination are used, which allows you to get a high-quality picture in night-time surveillance conditions. The lenses mounted on the diodes improve the viewing angle and the range of the backlight. The internal space of the camcorder is equipped with heating in case of lowering the temperature, the optimal mode of operation is established. The built-in cleaner provides high-quality cleaning of a viewing window of various kinds of pollution. It is recommended that the cleaner be turned on at low temperatures after the image appears on the monitor, since it prevents freezing of the cleaner to the case. 

The Orion MK VK camcorder is an explosion-proof enclosure with a type of protection explosion-proof enclosure “d” with a camera installed inside. Explosion-proof video camera made of low carbon steel; corrosion resistant steel; aluminum alloy. The housing is a hollow cylinder with welded flanges for attaching covers. The back cover of the shell is attached to the housing with six screws and has two fittings with an internal thread for installing cable entries on the outside, and a power board with temperature regulators is mounted on the opposite side, which is installed inside the housing. With the help of temperature regulators, heating of the internal space of the video camera is provided. During a cold start, power is supplied to the camcorder after warming up the camcorder's internal space. When the temperature reaches + 55 ° С, the power supply for the video equipment is cut off. The emitter board has eight light diodes of the infrared spectrum of the glow, optical lenses are installed on top of them, which positively affect the characteristics of the searchlight depending on the viewing conditions of video surveillance. A wide selection of optical searchlight lenses allows you to change the parameters of video surveillance, increasing the range or expanding the viewing angle. In the design of the video camera there is a photo relay (gloomy sensor) that allows you to respond to illumination by giving a signal to turn on or off the light. The built-in emitter is installed in the front flange of the housing and is fixed by a cover with a light-transmitting window made of shockproof glass. To eliminate the ingress of moisture and dust, rubber seals are used at the points of attachment of removable housing parts. A visor mounted on top of the enclosure is also an element limiting adverse environmental conditions.