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MKS-05 TERRA-P+
Dosimeter-radiometer
TERRA-P+ is a world-known dosimeter, designed on the basis of the professional device MKS-05 TERRA.
TERRA-P+ designed exactly for your needs if you:
- want to be sure of your radiation safety
- take care of your family
- are aware of possible radiation risks
- have a healthy diet
- own real estate or have projects under construction
- prefer active leisure time (tourism, hunting, fishing, skiing, etc.)
- like travelling
- use cash
- want to choose a useful and original gift for the loved ones
- choose the optimal price-quality ratio of the product
Features
- Big display with luminescent backlight
- Simultaneous indication of units of measurement, measurement errors, threshold level, and real-time on the display
- Analog ten-segment indicator of registered radiation intensity
- Ability to perform measurements with a preset error
- Four-level indication of battery discharge
- Built-in memory which allows storing up to 1 200 measurements
- Five independent measuring channels with an alternate indication of data on the single liquid crystal display
- Built-in gamma, beta-sensitive Geiger-Muller counter
- Prompt evaluation of gamma background within 10 seconds
- Automatic subtraction of gamma background at the measurement of beta contamination
- Measurement results averaging, manually and automatically interrupted
- Automatic setting of measurement intervals and ranges
- Audio, vibration, and vibration-audio alarm of each detected gamma-quantum or beta-particle that can be switched off
- Two-tone audio, vibration, and vibration-audio alarm of exceeded programmed threshold levels
- Clock and alarm clock
Purpose of use
- Measurement of ambient dose equivalent rate (DER) of gamma and X-ray radiation (photon-ionizing radiation)
- Measurement of ambient dose equivalent (DE) of gamma and X-ray radiation
- Measurement of surface beta-particles flux density
- Measurement of ambient dose equivalent accumulation time
Delivery kit
- dosimeter-radiometer
- operating manual
- leather case
- package
Specifications
| Measurement range of photon ionizing radiation DER | 0.1 … 5·10³ μSv/h |
|---|---|
| Main relative permissible error limit of photon ionizing radiation DER measurement with confidence probability of 0.95: | |
| – in the range from 0.1 μSv/h to 1.0 μSv/h | (15+2/M) % |
| – in the range from 1.0 μSv/h (inclusive) to 5·10³ μSv/h | 15 % |
| where M is a dimensionless quantity numerically equal to the value of the measured DER in μSv/h | |
| Measurement range of photon ionizing radiation DE | 0.1 … 1·10⁷ mSv |
| Main relative permissible error limit of photon ionizing radiation DE measurement with confidence probability of 0.95 | ±25 % |
| Energy range of detected photon ionizing radiation | 0.05 … 3 MeV |
| Energy dependence of the dosimeter readings at photon ionizing radiation DER and DE measurement in the energy range of 0.05 MeV to 1.25 MeV relative to the energy of 0.662 MeV (¹³⁷Cs) | ±35 % |
| Measurement range of surface beta-particles flux density | 1·10¹ … 1·10⁵ cm⁻²·min⁻¹ |
| Main relative permissible error limit of beta-particles flux density measurement from a source of ionizing radiation ⁹⁰Sr+⁹⁰Y with a confidence probability of 0.95 by the MKS-05 “TERRA-P+” dosimeter: | |
| – in the range from 1·10¹ cm⁻²·min⁻¹ to 5·10¹ cm⁻²·min⁻¹ | (25+200/M) % |
| – in the range from 5·10¹ cm⁻²·min⁻¹ (inclusive) to 1·10⁵ cm⁻²·min⁻¹ | 25 % |
| where M is a dimensionless quantity numerically equal to the value of the measured surface beta particles flux density in cm⁻²·min⁻¹ | |
| Energy range of detected beta particles | 0.5 … 3 MeV |
| Measurement range of DE accumulation time | 9 999 h |
| Resolution of DE accumulation time display in the range | |
| – of 0 to 100 hrs | 1 min |
| – of 100 hrs to 9 999 hrs | 1 h |
| Battery life (AAA × 2 of 1 280 mA·h capacity) under +20 °C temperature, natural background radiation and switched off backlight of the liquid crystal display (LCD), not more than | 2000 h |
| General operating supply voltage of the dosimeter from two AAA size batteries | 3 V |
| Additional permissible error limit during measurement caused by a change in ambient temperature from -20 °C to +50 °C for all measured physical quantities | 5 % per each 10 °C deviation from 20 °C |
| Mean time to failure, not less than | 6 000 h |
| Average service life of the dosimeter, not less than | 6 year |
| Average shelf life of the dosimeter, not less than | 6 year |
| Dimensions, not more than | 55 × 26 × 120 mm |
| Weight, not more than | 0.2 kg |