Máy đo phóng xạ POLIMASTER PM1211 (tia X, Gamar)

Detector: Geiger-Muller tube

Dose equivalent (DE) measurement range: 1 µSv - 25 Sv

Dose equivalent rate (DER) measurement range: 0.1 µsv/h - 100 mSv/h

Energy range: 48 keV - 3.0 MeV

DE measurement accuracy: ± 15 %

DER measurement accuracy: ± (10 + 0.0005/Ḣ + 0.05∙ Ḣ) %, (Ḣ - DER value)

Energy response relative to 0.662 MeV: in the range from 0.048 – 3.0 MeV: no more than 29%

Thresholds: 2 independent thresholds for both DE and DER

Alarm Type: visual and audible

Memory: non-volatile

PC communication: USB

Power supply: one lithium battery CR2450 or BR2450A 3.1 (+ 0.2; - 0.5) V

Battery lifetime: PM1211: at least 24 months

Operating temperature: from - 40°С to + 60°С with battery BR2450A (from - 40°С to - 20°С without indication on LCD; from - 20°С to + 60°С with battery СR2450)

Humidity: up to 98% at 35°С

Atmospheric pressure: from 84 to 106.7 kPa

Ingress protection: IP54

Dimensions: 128 x 48 x 20 mm

Weight: 130 g (including battery)