FJ2000 Personal Dosemeter

FJ2000The Model Personal Dosemeter is an intelligent, pocket-sized instrument, manufactured using advanced single-chip microcontroller technology with strong functions, primarily used for monitoringXRay andγGamma rays, directly read out personal dose and personal dose rate; within the measurement range, it can set a fixed or preset alarm threshold, emitting an audible and visual alarm when exceeding the threshold or blocking, promptly reminding staff to pay attention to safety. The main technical specifications of the instrument comply with national and international standards, making it a compact, low-power portable device among similar domestic instruments. It is widely applicable in fields such as industrial non-destructive testing, nuclear power plants, and isotope applications.

Instrument Features

      High sensitivity of the instrument, also responsive to environmental background

      Utilizing single-chip microcontroller technology, featuring multiple functions and compact size.

      Low power consumption: ＜2mW

      Instrument operation is simple and convenient.

      Accumulated Dose, Dose Rate Switch Display

      Strong electromagnetic interference resistance

Technical Specifications

（1Detector:GMCounting Tube (Compensated)

（2Display:4Please provide the Chinese content to be translated.LCD

（3Measuring Range (Two Functions):

        Cumulative Dose EquivalentHp（10）0.0μSv - 99.99mSv

        Dose Equivalent RateHp（10）0.1μSv/h - 99.99mSv/h

（4Measurement Time: ＜6.0μSv/h 36s ＞6μSv/h ≤3.6s

（5Dose equivalent rate response: ≤±20%（1μSv/h-99.99mSv/h）

（6Energy Response: ≤±30% 50KeV-1.3MeV

（7Relative Error: ＜±20%（137Cs）

（8Alarm Function:

     Dose rates and cumulative doses can have preset alarm thresholds within the measurement range. The instrument currently features fixed alarm thresholds.

       aCumulative Dose: With each increase0.1μSvBEEP once, light up once; ≥50μSvAcoustic and Light Alarm5sThere is"ALARM"Display.

       bDose rate: ≥25μSv/hAudio-visual alarm6sAvailable"ALARM"Display.

       cBlockage Alarm: Continual alarm until stopped when the counting tube encounters a blockage."ALARM"Display.

       dAlarm Sound Intensity: At30cmHere80dB。

（9Under-voltage Indicator: Battery Voltage <2.7±0.05VBattery low symbol displayed on the instrument"LOBAT"。

（10Power Consumption:AAAType1.5VTwo Alkaline Batteries7Cell No. battery) under environmental conditions, power consumption <2mWContinuous use720Hour(s).

（11Temperature Characteristics: ≤±10% -10℃ --  +50℃

（12Moisture Characteristics: ≤ ±10%  95%RH（+35℃）

（13Dimensions:55(W) ×92(Length) ×18Thick

（14Weight: <75Kilogram (including battery <98gms