DatasheetThe GRAETZ CoMo-170 is a powerful, mobile and battery or accumulator operated contamination monitor for highly sensitive nuclide-related measurement of surfaces for α-, β- and γ-contamination when handling ionizing radiation. The one-hand measuring system has a detector area of 170 cm² and automatically detects whether α-radiation is present. The measured value display is optionally pulses per second (Ip/s) or nuclide-related in Becquerel (Bq) and Bq/cm².
- Easy to use one-hand measuring system
- Fast inspection of large surfaces due to large detector area
- High-sensitivity nuclide-related measurement of surfaces for α-, β- and γ-contamination when handling ionizing radiation
- Dust and splash water protection (protection class IP54)
Technical Data
| Detector type | Thin Film Plastic Scintillation Detector with ZnS Coating | |
| Detector size | 170 cm² | |
| Display ranges | α-channel | up to 5,000 Ip/s |
| β-γ-channel | up to 50,000 Ip/s | |
| Measuring ranges | α-channel | up to 2,500 Ip/s |
| β-γ-channel | up to 20,000 Ip/s | |
| Zero effect | α-channel | approx. 0.1 Ip/s |
| β-γ-channel |
approx. 15 – 20 Ip/s | |
| Dimensions | approx. 280 × 125 × 135 mm | |
| Weight (incl. batteries) |
approx. 800 g | |
| Protection class | IP54 (Protected against splashing water) |
For detailed technical data, please refer to our product data sheet for this article.
Efficiencies for different radionuclides
(Mittelwerte aus Messungen mit 100 cm2 Präparaten) Die nuklidbezogenen Wirkungsgrade des Szintillationsdetektors sind vergleichbar den Wirkungsgraden herkömmlicher Zählrohre.
| C-14 | approx. 14 % | Tc-99m | approx. 3 % |
| F-18 | approx. 18 % | In-111 | approx. 8 % |
| P-32 | approx. 25 % | I-123 | approx. 7 % |
| S-35 | approx. 5 % | I-125 | approx. 12 % |
| Cl-36 | approx. 42 % | I-131 | approx. 21 % |
| K-40 | approx. 30 % | Cs-137 | approx. 35 % |
| Co-57 | approx. 7 % | Au-198 | approx. 23 % |
| Co-60 | approx. 27 % | Tl-204 | approx. 43 % |
| Sr-89 | approx. 27 % | Am-241 α | approx. 22 % |
| Sr-90 / Y-90 (related to Sr-90) | approx. 42 % | P-238 α | approx. 12 % |
| U-238 α | approx. 26 % |
Embodiments
CoMo-170 (version industry)
Item no. 5641 0417-0
CoMo-170 (Medical version)
Art.no.5641 0700-0
CoMo-170 D – with additional GM counter tube for dose rate measurement
Item no. 5641 0696-0
CoMo-170 ZS – Special version for civil defense
Art.no. 5641 0627-0
For CoMo-170 ZS
CoMo-170 ZS – special version for civil defense with accessories
Item no. 5641 0628-0
About the CoMo-170 ZS
CoMo-300 – version with larger detector area of 300 cm².
Item no. 5641 0492-0
CoMo-170 F – special version for the fire brigade*.
Item no. 5641 0487-0
*Different technical data for CoMo-170 F:
Measured value display Ips (not nuclide-related in Bq or Bq/cmÇ)
Software: fire department specific adapted
All functions protected by code word
Additional warning threshold at 3-fold zero effect
No external detectors
No charging function
Accessories
