The product is used to ensure the safety of air, road, water and rail transport, manufacturing plants, office and residential premises, inspection of postal correspondence, various packages and cargo, as well as individuals.
The MO-2M detector is designed to detect: - explosive vapors (EV) during air sample analysis in real time or after sampling by a sampling device; - explosive particles after their collection by sampling wipes during inspection of various objects in the field
Detection of EV is accompanied by sound and light alarm signals, as well as in alphanumeric and graphic (ionogram) forms on the MO-2M LCD screen and/or on the display of an external computer (PC or PDA).
The MO-2M portable explosive vapor detector is created on the basis of a unique technology based on the principle of nonlinear dependence of ion mobility on the electric field strength. This technology allowed to create a compact and lightweight, but at the same time very sensitive device capable of detecting the presence of explosive vapors in real time at their concentration in the air less than (10-13 g/cm3).
The MO-2M does not require a special carrier gas to operate.
After switching on, the MO-2M detector is automatically adjusted (calibrated) to environmental conditions in no more than 10 seconds.
The detector is equipped with an autocalibration system that ensures constant adjustment of the parameters of the analyzing system when environmental conditions change. Autocalibration is based on constant "tracking" of changes in the signal parameters from the internal standard (reference point) located in the comparison channel and the corresponding adjustment of the electrical parameters of the measuring channel.
The built-in vortex pump creates a swirling air flow that ensures stable sampling at a distance of up to 100 mm from the object being examined, as well as from behind an obstacle if there are cracks or holes in it.
The ambient air under the influence of the built-in pump enters the two-channel analytical path, at the input of which it is ionized by a beta-radiation source, with subsequent separation of the formed ions under the influence of high-frequency alternating and constant electric fields. The separation of ions is a consequence of the different dependence of their mobility on the electric field strength. The ratio of the alternating field parameters and the constant bias voltage is selected in such a way that compensation of the average drift (selection conditions) is performed only for a certain predetermined type of ions, which pass into the collector chamber. Ions for which the selection conditions are not met recombine on the walls of the analytical path.
The selected ions corresponding to explosive vapors are collected on the collector, creating an ion current, which is amplified by an electrometric current amplifier, recorded by the MO-2M electronic circuit, and the processed results initiate alarm signals corresponding to each type of explosive.
To increase the reliability of the search, along with sound and light indication of the presence of explosives, the analysis results are displayed in the form of "ionograms" on the built-in color graphic LCD screen.
Using the included evaporation chamber TWIN detector (the device is protected by Russian patent No. 2305282) allows for the analysis of particles collected from the surface of the objects being examined.
Specifications
Analytical principle: Nonlinear dependence of ion mobility on electric field strength Design features of the detector: Contains 2 channels: - measuring (for air sample analysis) - comparison channel (containing a cartridge with a TNT vapor source (internal standard)) for autocalibration Detection of explosive traces: vapors and microparticles Response time: 1 ... 2 seconds Threshold sensitivity to TNT at +20°C and 50% relative humidity: not worse than 10-13 g/cm3 for vapors; no more than 500 picograms for particles. Detected substances: trinitrotoluene (TNT), cyclotrimethylene trinitroamine (hexogen), pentaerythritotetranitrate (PETN), nitroglycerin and explosives based on them; Ionization method: Ionization by means of radioactive sources based on tritium built into each channel, with a total activity of up to 90 mCi (up to 27 mCi is possible) Data transfer to an external computer: - USB connection cable - built-in radio channel (BlueTooth) Ready for operation after switching on: no more than 10 seconds Alert signals: sound, light, display of ionograms on a color graphic LCD Built-in memory: 5700 ionograms with analysis results (up to 10,000 is possible) Power supply: From a 100-240V network or a 14.4V Li-Ion battery (3 batteries included in the product kit) Continuous operation time from one battery*: - at least 4 hours in vapor detection mode; - at least 2 hours in particle detection mode using a TWIN evaporation chamber. Carrier gas: not required Power consumption, no more than: 12 VA Weight of the hand-held unit with battery: no more than 1.4 kg Weight of the entire kit**: no more than 9.0 kg Dimensions of the hand-held unit of the detector, mm: no more than 305 x 120 x 86 Overall dimensions of the kit in the package, mm**: no more than 515 x 430 x 150 Operating temperature: +5°C ÷ +55°C in the explosive vapor detection mode -10°C ÷ +55°C in the particle detection mode using the TWIN evaporation chamber * Not less than 5 and 2.5 hours, respectively, when operating from a 3.4 Ah battery
**The dimensions and weight of the product in the operating packaging may vary depending on the type of packaging used and the completeness.