FJ2000-type personal dosimeter is a pocket-sized intelligent instrument, it features strong use made of the new microcontroller technology is mainly used to monitor the X-ray and γ-ray, direct reading personal dose and individual dose rates; in the measurement range, can fixed or pre-alarm threshold, exceeding the threshold value or obstruction audible alarm, a timely reminder of the staff safety. The main technical indicators of instruments in line with national standards and international standards, is the instrument of similar small size, low power consumption, compact wearable device, it is widely used in industrial nondestructive testing, nuclear power plants, isotope applications and hospital area of cobalt treatment.
FJ-2000-type personal dosimeter
Features:
- Instrument sensitivity, also responding to the environmental background
- Using chip technology, multi-function, small size
- Low power consumption: <2mW
- Equipment is simple, easy to use
- Cumulative dose, dose rate switch display
- Anti-electromagnetic interference
Specifications:
- Detectors: GM counter (via compensation)
- Display: 4-bit LCD
- Measuring range (two functions):
- Cumulative dose equivalent: Hp (10) 0.0μSv-99.99mSv
- Dose equivalent rate: Hp (10) 0.1μSv/h-99.99mSv/h
- Measurement time: <6.0μSv / h 36s> 6μSv / h ≤ 3.6s
- The dose equivalent rate response: ≤ ± 20% (1μSv/h-99.99mSv/h)
- Energy Response: ≤ ± 30% 50KeV-1.3MeV
- Relative error: <± 20% (137Cs)
- Alarm function:
Dose rate and cumulative dose in the measurement range can be preset alarm threshold. This instrument is a fixed alarm threshold.
1) Cumulative dose: each additional 0.1μSv, ring a short sound, light one; ≥ 50μSv, sound and light alarm 5s, with "ALARM" display.
2) Dose rate: ≥ 25μSv / h, sound and light alarm about 6s, with "ALARM" display.
3) Blocking alarm: When the counter counts obstruction, continuous alarm goes on, with "ALARM" display.
4) The alarm sound level: 30cm, about the 80dB.
- Voltage indication: Battery voltage <2.7 ± 0.05V, the instrument displays the battery voltage symbol "LOBAT".
- Power consumption: AAA type 1.5V alkaline batteries two (7 cells) under the environment of the power consumption <2mW, 720 hours of continuous use.
- Temperature characteristics: ≤ ± 10% -10 ℃ - +50 ℃
- Humidity characteristics: ≤ ± 10% 95% RH (+35 ℃)
- Dimensions: 55 (W) × 92 (length) × 18 (thick)
- Weight: <75 grams (with battery <98 g).
