Portable Explosive Detector MO-2M
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Application
The MO-2M is a handheld explosives detector designed to detect the presence of explosives on persons and their belongings, in luggage in mass transit systems (airports, train and metro stations), in vehicles, freight and cargo as well as on the premises of buildings, offices and apartments. During inspections, the MO-2M samples and analyzes the ambient air to detect the presence of vapors of explosives. When used in conjunction with its TVIN thermal chamber, the MO-2M can detect both vapors and particles of explosives.
When explosives are detected, the detector generates audible and visible (graphs, text) alarms.
The MO-2M is a hand-held, rapid-response explosives detector.
It utilizes today's most advanced technology developed in Russia by scientists and engineers of the Institute of Applied Physics and known as Non Linear Dependence of ion Mobility (NLDM) on an electric field. This technology has made possible to design an extremely sensitive device capable of simultaneously sampling and detecting explosives vapors in real time. A vapor concentration less than 10-13 g/cm3 (0,01 part per billion) can be easily detected.
The MO-2M is a completely automatic, real-time portable detector that does not require any carrier gas or calibration accessories.
During analysis, the detector automatically recalibrates to constantly adjust the ions separation conditions during to any change in environment air being analyzed.
In vapor mode, the air surrounding the objects being inspected is drawn into the analyzing head of the detector where it is ionized by radioactive source (Tritium) and introduced into the separation chamber. There, the ions are separated by asymmetrical electric fields and then captured on the collector, creating a current that is amplified and registered.
In Particle, paper swipes are used to collect samples from the objects being inspected and MO-2M is fitted with a small thermal vapor intensifier (TVIN). When a swipe is introduced in the TVIN, the heat evaporates the residues of explosives and the detector analyzed their vapors.
The MO-2M is powered by rechargeable Li-Ion Battery. One Li-Ion battery provides for at least 4 hours of continuous operation in vapor mode and three batteries are included with each detector.
The MO-2M can also be powered from the main using its AC/DC converter (100-240 Volts, 50– 60 Hz).
The MO-2M is very easy to operate. Once turned on, it takes less than 10 seconds for the MO-2M to be ready to operate.
Technical characteristics
| Detection principle: | Нелинейная зависиmость подвижности ионов от напряженности электриhескоgо поля. |
| Design philosophy: | Non Linear Dependence of ion Mobility on an electric field – NLDM |
| Autocalibration: | Performed each second. Based on measuring the parameters of the signal from the internal standard inside the reference channel and correcting of the electric parameters of the analytical channel when external conditions change. |
| Explosive particles (traces) detection: | Cards are used to collect particles (traces) from the surface of examined objects, TVIN evaporating chamber is used to desorb vapor from sampling card |
| Response time in direct air sampling: | Less than 1 second (at +25°C and relative humidity 50%) |
| Threshold of sensitivity to TNT at +20°C and relative humidity 50%: | Not less than 10-15 g/cm3 – in laboratory conditions on vapors; Not less than 10-13 g/cm3 – in field conditions on vapors; Better than 500 picogram on particles. |
| Detectable substances: | Trinitrotoluol (TNT), cyclotrimetilentrinitroamin (hexogen), pentaeritrittetranitrat (PETN), nitroglycerin, tetryl and explosives based on them |
| Method of Ionization of vapors: | Two radioactive sources of Tritium, one inside each channel Total activities of ВНЗ.223 and ВНЗ.324 sources is 89,2 millicurie |
| Data transfer to the external PC: | - USB-cable - built-in radio channel (BlueTooth) |
| Readiness for operation after switching on: | Less than 10 second (autodiagnostics and autocalibration are performed after switching on) |
| Alarm signals: | Audible, LED, visual display of graphs (ionograms) on color LCD |
| Power supply: | Li-Ion storage battery 14.4 V (3 batteries in the complete set), or AC/DC Converter from main (100-240V/ 50-60Hz) |
| Time of continuous operation from one storage battery: | - at least 4 hours in vapor detection mode, - at least 2 hours in particles detection mode with the use of the TVIN evaporating chamber |
| Gas-carrier: | Not required |
| Power consumption, no more: | 12 VA |
| Weight of the handheld unit (with battery): | 1,4 kg |
| Weight of the complete set: | 6,75 kg (in Pelican type case) 6,9 kg (in Corsar type case) |
| Dimensions of the handheld unit: | 305 x 120 x 86 mm |
| Dimensions of the packed complete set: | 480 x 355 x 120 mm (in Pelican type case) 495 x 385 x 140 mm (in Corsar type case) |
| Operating temperature: | +10°C ... +55°C (at relative humidity up to 80%) |
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