Compact multi-purpose survey meter for external proportional detectors, such as He-3 and BF3 based neutron rem counters.
The RadEye PX performs count rate and surface contamination measurements as well as dose rate measurements, typically with He-3 or BF3 based rem counters. It is part of the RadEye X Series, together with the RadEye SX for scintillation probes and the RadEye GX for GM detectors.
The display and alarm LED remain visible while the instrument is worn in its transparent case. Settings and data analysis are handled by optional Windows-based PC software, and the last 1500 mean and maximum values of count rate or dose rate are recorded internally for read-out. The instrument also logs the last 250 alarms, error messages and configuration changes.
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| Measured quantities | Count rate (cps, cpm), surface contamination (Bq, dps, dpm, Bq/cm²), dose rate (R/h, Sv/h, rem/h) |
|---|---|
| Measuring range | Default: 100,000 cps – extendable by individual probe calibration |
| Probe cables | RG 58, max. 1.5 m – MHV connector |
| High voltage range | 100 V to 2300 V with output impedance 2 MΩ |
| Probe library | 16 different detectors with corresponding high voltage, calibration factor, dead time correction, overload threshold, detector area and timeout for detector failure |
| Operation modes | Ratemeter/survey meter, scaler/timer with preset count and preset time, simultaneous α/β and gross/ROI operation |
| Alarms | Two alarm thresholds each for count rate, activity, dose and dose rate; 80 dB at a distance of 30 cm |
| Working temperature | −20 °C to +50 °C |
| Relative humidity | 10 to 90 % at 35 °C, not condensing |
| Internal memory | Last 1500 measured values; logbook with 250 entries |
| Battery life time | Approx. 200 h |
| Size | 110 × 67 × 62 mm, with rubber protection, without cable |
| Weight | Around 160 g including AAA cells and protection sleeve |
Source: Thermo Fisher Scientific, RadEye PX brochure (2020) and product page 4250694. Full specifications are available in the documents.
