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CoMo-170/-300

Portable contamination monitor for highly sensitive measurements of α- and β-/γ-contamination

Working with open unsealed radioactive material can lead to contamination
of persons, equipment and surfaces.
Therefore, regular controls are mandatory to ensure the safety of humans and the environment. Mobile contamination monitors such as the CoMo-170 or CoMo-300 are used for direct and indirect contamination measurements.
Combined with dedicated accessories, these powerful measuring devices
provide a complete solution for contamination control and clearance
measurements.
Benefits
• No gas-filled or gas-flushed detector
• 2 in 1 instrument: α- and β-/γ- contamination measurement with only one detector, no detector change required
• Large detector surface allows fast and effective monitoring
• Combination of robust design and high efficiency
• Very light device with ergonomic housing design allows one hand
operation
• Background measurment and substraction
• User-friendly menu structure operated by just 5 function keys
• Various accessories

Key Figures
Detector size
170-300cm2

Total weight
800g

6 Versions available

Applications & Uses

• Nuclear technology, • Clearance measurements, • Research centers, • Nuclear, medicine, • Civil protection, • Industry, • Incoming goods inspection, • Fire brigades • Customs, • Police

Specifications

Detector type:

Thin-layer plastic scintillation detector withZnS coating, two aluminium vaporised Mylarfoils (2 μm each), a fine-mesh honeycombgrid and a protective cover.
Alpha- and beta-/gamma-separation viacount height analysis

Detector size:

CoMo-170: 170 cm²
CoMo-300: 300 cm²

Efficiencies:

(according to surface emission rate (ISO 7503-1),
Average values from measurements with 100 cm² sources)

C-14      40%
Cl-36     63%
Co-60    62%
Cs-137   67%
Sr-90      73%
Am-241 α  56%
Pu-238 α   42%
U-238 α     45%

(according to activity (DIN 25482), Average values from measurements with 100 cm² sources)

C-14      15%
Cl-36     40%
Co-60    31%
Cs-137   41%
Sr-90      95%
Am-241 α   26%
Pu-238 α    20%
U-238 α      41%

Detector unit:

Autonomous, easily exchangeable assembly, integrated in the bottom of theoverall housing

Background:

CoMo-170: α approx. 0.1 cps, β/γ approx.9 – 13 cps•CoMo-300: α approx. 0.1 cps, β/γ approx.20 – 30 cps

Background subtraction:

Automatic background measurement and subtraction, background measuring time programmable

Option of net or gross measurement

Measuring electronics:

Microcontroller-based electronics Keyboard:

Foil keyboard with 5 function keys

Alarm:

Individually configurable for each type of measurement
Visual warning
Acoustic warning (approx. 80 dB at a distance of 30 cm)

Optional vibration alarm

Earphones can be connected for audible feedback in noisy or sensitive environments

Nuclides:

Preset calibration ex works, Settings and calibrations adjustable by user, Auto-calibration function, Library for up to 40 nuclides

Measuring time:

Continuously in search mode or with user-configurable measuring time

Interfaces:

USB interface (for connection with PC), battery charge/mains operation, externaldetectors, active wall station/wipe teststation

LC display:

Large-area graphic LC display(128 x 64 pixel)
Automatic illumination via photocell (LDR)or adjustable fixed duration

Power supply:

2 batteries (AA battery LR 6) orrechargeable batteries (NiMH),
Approx. 25 h operating time. Can be recharged via charger or wall station

Nominal operating range:

-10 °C to +40 °C (special version down to-20°C)
up to approx. 90 % RF (non-condensing)

IP Rating:

54

Dimensions:

CoMo-170: 280 x 125 x 135 mm(L (with handle) x W x H)
CoMo-300: 318 x 157 x 172 mm(L (with handle) x W x H)

Weight:
CoMo-170: approx. 800 g (includingbatteries)
CoMo-300: approx. 1,000 g (includingbatteries)

Housing:
Ergonomically shaped plastic housing

 

Special versions:
CoMo-170 DL: with additional GMcounter tube integrated into the front formeasurement of the dose rate
CoMo-170/-300 G: with a thicker plasticscintillation detector for pure gamma measurements

With magnetic field sensor

(only CoMo 170)

CoMo-170 BL:

no PC interface for meetingthe highest IT-security requirements







What Our Clients Say

Ron Ulbrich, Geiger Counter Pro

“The Radiation Alert Ranger® is a great value for those looking for a modern Geiger counter. I found that is simple to use yet includes many advanced functions if and when you want them without obstructing the simplicity…”

Judson Kenoyer, CHP, CIH

“I have used the Monitor 4 in courses that I teach radiation safety for close to 8 years. The students love it and affectionately call it the “Batman unit” because of its use in the movie The Dark Knight Rises. It is light-weight, sensitive, and quite often out performs some of the more expensive units from other companies that we use in a lab exercise…”

Neil Breslow, NDT Supply

“NDT Supply has been working with SE International since we started business in 2000. We have found them to be easy to work with, and a very reliable and responsive supplier. Questions and issues are always handled promptly and with a smile…”