JB4022 personal warning device for X-γ radiation
Introduction
JB4022 personal warning device for X-γ radiation is used to monitor X, γ and β-ray radiation in various kind of radioactive workplace. It is mainly used for personnel engaged in radiation such as radiation supervision management, industrial radiography, irradiation station and radiotherapy medical personnel, so that it can accuray measure the radiation dose to ensure the safety of the personnel. This instrument can simultaneously measure dose rate and accumulated dose. If the value exceeds the preset
dose or dose rate, the instrument will vibrate and provide acoustic alarm. Its
detector is a compensated GM counter, so this instrument has a wide
measurement range and very good energy response characteristics. The
instrument is provided with a built-in rechargeable lithium battery and the
functions of overload indication and protection
Features
High sensitivity, wide measurement range
Simultaneous display of accumulated dose and dose rate
Singlechip technology, multi-functions and small volume
Easy and convenient operation
Alarm threshold can be preset
Rechargeable lithium battery which can be charged in the computer or
AC power supply through USB port
Battery low voltage alarm
Accumulated dose can be stored for a long period in case of power
failure
With real-time clock function
Alarm modes: sound, vibration, sound+vibration
Color of enclosure: blue, orange
Main specifications
Measurement range: Dose rate: 0.01 μSv/h ~99.99 mSv/h
Accumulated dose: 0.00 μSv ~999.9 mSv
Energy range: 48Kev~1.5Mev
Energy response error: ≤±30%(relative to 137Cs)
Relative basic error: ≤±20%
Measurement time: 3、9、30s
Alarm threshold: 0.5、2.5、10μSv/h
Protection alarm response time:≤5s
Display mode: LCD display, dose rate (μSv/h) and accumulated dose
(μSv)—International standard unit
Whole unit power consumption: ≤5mW,the standby measurement
time at background measurement state up to 1200 hours