JB4000/JB4000A type X - γ radiometer

JB4000/JB4000A type X - γ radiometerIntroduction
JB4000 and JB4000A X - γ Radiometers (Recommended by Nuclear Association and Radiation Environmental Assessment)
The JB4000 (A) type X - γ radiometer is an instrument used to monitor the dose rates of X-rays and gamma rays in various radioactive workplaces. Compared with similar domestic instruments, this instrument has a larger dose rate measurement range and energy response characteristics.
This instrument is widely used in places that require radiation environment and radiation protection testing, such as hygiene, environmental protection, metallurgy, petroleum, chemical, radiation laboratory, and commercial inspection
The measurement range of JB4000 X - γ radiometer is 0.01 µ Sv/h to 200 µ Sv/h.
The measurement range of JB4000A X - γ radiometer is 0.2 µ Sv/h to 2500 µ Sv/h.

JB4000/JB4000A type X - γ radiometerFeatures and Functions
The instrument has high sensitivity and a large measurement range; Good energy response characteristics
Single chip microcontroller control, LCD display; Backlight function
LCD display screen, backlight function; Easy to operate
Built in 100 sets of dose rate storage data, which can be viewed at any time
Both dose rate and cumulative dose can be measured
Equipped with dose rate threshold alarm function
Equipped with dose rate overload alarm function
Equipped with detector fault alarm function
Equipped with battery undervoltage alarm function
All stainless steel casing, suitable for field operations

Main technical indicators
探 测 器： JB4000：φ30×25mm,NaI（TL）； JB4000A：φ30×5mm,NaI（TL）
Sensitivity: JB4000:1 µ Sv/h ≥ 350CPS; JB4000A：1µSv/h≥65CPS
Alarm threshold: 35Kev
Measurement range: JB4000 Dose rate: 0.01 µ Sv/h to 200 µ Sv/h; JB4000A dose rate: 0.2 µ Sv/h to 2500 µ Sv/h
Cumulative dose: 0.00 µ Sv to 9999.99 µ Sv
Energy range: 40Kev~3Mev
Energy response: 48Kev~3Mev, not exceeding ± 20% (relative to 137Cs)
Relative basic error: JB4000: ± 0.5% (0.5 µ Sv/h~50 µ Sv/h); ± 1.0% (>50 µ Sv/h~200 µ Sv/h)
JB4000A：±15%
Measurement time: 1, 5, 10, 20, 30 seconds
Alarm threshold: 0.25, 2.5, 10, 20, 60 (µ Sv/h)
Reading display: Dose rate: µ Sv/h, µ Gy/h, µ R/h selectable
Cumulative dose: µ Sv Count rate: CPS
Power consumption: The overall power consumption of the machine is ≤ 160mW (excluding display backlight power consumption)
Weight and size: 1.60Kg (including battery); 42×23×15（cm）