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Ermo 482X Pro

Ermo 482X Pro Will protect a large span of 50-250 metres

Ermo 482x Pro is a digital microwave barrier with digital signal analysis for protection in the ranges of 50, 80, 120, 200, and 250m. The system is able to detect and evaluate all things that cross the microwave beam, and apply fuzzy logic to analyze determine if the intrusion is a valid threat. The logic evaluation gives very high performance in detection probability and low false alarm rates.

Thanks to the digital analysis the barrier is able to compare the received signals with those generated by an intruder (behavior models). It also monitors the signal continuously, making a complete environmental analysis, which gives the unit significant extra features compared to those using traditional analysis.

The microwave intruder detector Ermo 482x Pro is the ideal device for protecting very high risk sites such as power plants, prisons, military sites, petrol-chemical sites, water reservoirs, etc. Furthermore, it is impossible to mask the Ermo 482x Pro thanks to the 16 crystal controlled modulation channels and the complete environmental monitoring performed by the microprocessor. The Ermo 482x Pro also has a very important software tool: WAVETEST allows set up and control of each transmit (TX) or receive (RX) head locally or remote.

  • Large open distance protection system
  • From 50-500m of protection from one connection point
  • Many km’s of coverage with one power delivery point
  • Fuzzy logic filters non-alarms

Tech Features

Frequency = X-K band certified in many countries and conforms to Canadian standards
(Frequencies available: 10.58 GHz, 9.9 GHz, 9.46 GHz, 10.525 GHz and 24,25 GHz) (ERMO 482X PRO-EG Frequency is 9.900 GHZ)
RF Output power (EIRP) = Certified in many countries and conforms to CE, USA and Canadian standards.
(ERMO 482X PRO-EG  RF o/p power  is  25 mw)
Range = 50, 80, 120, 200, 250m
Speed target = 0cm/sec a 15m/sec
Probably of detection = 0.99 minimum based on s/n ratio
Modulation channels = 16 crystal controlled
False alarm rate = 1/unit/year based on s/n ratio
Temperature = from -35°C to +65°C
Alarm outputs = 3 solid state relays for alarm, fault, tamper
Power supply = AC 19Vac, 13.8Vdc, 24Vdc
Current consumption = 120mA (TX+RX)
Special applications = Explosion-proof available


ERMO 482x PRO incorporates in the new SMT circuit an audio-visual set-up system which simplifies the alignment and set up of the barrier. Also included is a walk-test function which identifies the real dimensions feel of the protection field.


Mounting poles and derivation boxes made in stainless steel


EExd IIC T5 – certified CESI D 85.064. The Ermo barrier family is available in explosion proof boxes (certified under European regulations).



WAVE TEST is a software package used to commission and fine tune the ERMO482X PRO intelligent microwave barriers. With a computer connected to the RX or TX head , thanks to MW manager, it is possible to display the received signal shape or the analogue values (battery level, detected signal voltages, temperature, AGC voltage) in real time. It is possible to download the last 100 analogue events and the last 256 barrier events stored in the individual barrier memory, change the operating parameters and a number of other functions. All the above can be performed locally, connecting the pc directly to the head on site, or, by connecting the heads to an RS485 serial line, remotely in a control room. it is also possible to connect the RS485 line to a modem which can connect remotely with a pc running WAVE TEST, allowing complete remote troubleshooting from anywhere in the world. MWATEST is very useful for analysis of the environmental noise within a particular installation, thanks to the on-board memory, and then to set the barrier perfectly for that environment.


DIGITAL ANALYSIS USING FUZZY LOGIC – FBM ERMO482X pro monitors the signal, comparing it with behavior models using algorithms based on “fuzzy” logic (fuzzy behavior models – fbm) to decide if the signal was created by a real intruder or some other factor. The size, shape and rate of change of the signal are continuously measured and compared with typical stored signals. The sensor is able to detect intruders walking, running, crawling or rolling. Every event that generates an alarm or a significant change in the received signal is date/time stamped and stored in ram memory and can be analyzed in real time and/or later.

FUZZY SIDE TARGET DISCRIMINATION – F.S.T.D. For long range protection (over 50m) using a parabolic antenna will give a much purer signal than devices using elliptical or planar antennas. In particular situations where there is continuous interference at the side of the field, such as loose, moving metallic fences in the beam pattern, vegetation that encroaches the side of the beam or other large parallel side movements it is possible to use the FSTD function in the software. Using this it is possible to adjust the sensitivity only at the side of the beam pattern, or even exclude all signal analysis from the sides. In this way we can have a beam that although it is physically as normal, it appears elliptical with different shapes dependent on the fstd setting while maintaining the purity of signal that is the advantage of the parabolic antenna compared to an elliptical antenna.

DYNAMIC DIGITAL ANTI-MASKING The 16 crystal controlled modulation channels, together with a dynamic analysis of the absolute value of the received signal, detected during the installation process, make masking impossible and possible the detection of potential faults in the microwave components.

AUTOMATIC ENVIRONMENT ADJUSTMENT The temperature is continuously checked