intelligent pocket instrument, it adopts function strong new produced by microcontroller technology, mainly used for monitoring

FJ2000 type personal dosimeter is intelligent pocket instrument, it adopts function strong new produced by microcontroller technology, mainly used for monitoring X rays, and gamma rays, directly read personal dose and personal dose rate; When measuring range, can be fixed or presets alarm threshold, more than threshold or blocked sent out the acousto-optic alarm, timely remind workers pay attention to safety. Instrument main technical index comply with national standards and international standards, is the present domestic similar instrument small volume, low power consumption XiuZhenYi wear type, it is widely used in industrial NDT, nuclear power station, nuclear submarine, isotope application and hospital cobalt treatment etc.

FJ2000 personal dosimeter features:

Instrument high sensitivity, the bottom of the environment also have response

Using single chip microcomputer, the function is much, small volume

Low power consumption: < 2mW

Instrument operation simple and easy to use

Cumulative dose, the dose rate switching display

Anti-electromagnetism interference ability

FJ2000 personal dosimeter technical index:

(1) lander: GM counting tube (via compensation)

(2) show: four LCD

(3) measurement range:

Cumulative dose equivalent: Hp (10) 0.0 muon Sv - mSv 99.99

Dose equivalent rate: Hp (10) 0.1 u Sv/h - mSv 99.99. / h

(4) the measuring time: < 6.0 muon Sv/h36s, > 6 muon Sv/h acuities 3.6 s

(5) dose equivalent rate response: acuities + 20% (1 muon Sv/h - 99.99 mSv/h)

(6) energy response: 50keV - more than 1.3 MeV plus or minus 30 percent

(7) the relative error: < + 20% (137Cs)

(8) alarm function: dose rate in the measurement and cumulative dose within preset alarm threshold. The instrument is presently is equipped with fixed alarm threshold. Cumulative dose for each additional 0.1 u Sv, ringing a short sound, shine once; P 50 mu Sv, sound-light ALARM 5s, have "ALARM" display. Dose rate p 25 muon Sv/h, sound-light ALARM about 6s, ALARM "display". Jam ALARM when counting tube counting blocked, continuous ALARM kept, "ALARM" display. Alarm sound intensity: 30cm place in about 80dB.

(9) undervoltage instructions: battery voltage < 2.7 + 0.05 V, instrument says the battery voltage symbol "LOBAT".

(10) power consumption: AAA type 1.5 V alkaline batteries two (7 battery) environment, power consumption < 2mW this under continuous use, 720 hours.

(11) temperature characteristic: plus or minus 10% more than 10 °C - + 50 °C

(12) humidity characteristics: plus or minus 10% more than 0 °C + 35 95% RH ()

(13) shape dimension: 55 (wide) ? 92 (long) ? 18 (thick) mm

(14) weight: < 75 grams (excluding battery)

personal dosimeter