BH3084個人射線劑量儀
一 技術參數
探 測 器：GM計數管
量 程：0.1μSv～1MSv
劑量率 ：0.01μSv/h～1MSv/h
相對誤差：<±20%（137Cs）
欠壓指示：當電池電力不足時儀器停止工作，缺電指標燈亮
體 積：121mm × 71mm × 21mm
重 量：<110克。
二 主要特點：
BH3084個人射線劑量儀主要技術指標符合國家標準和國際標準，廣氾適用於輻照站、海關、工業無損探傷、核電站、核潛艇、同位素應用和醫療鈷治療等領域。
BH3084個人射線劑量儀是採用新型單片機技術製作而成的智能型儀器，主要用來監測X、γ射線照射人體後人體的吸收劑量。同時個人射線劑量儀聲光報警頻率與劑量率成正比，所以也可定性監測劑量率大小
BH3084 DOSE METER
BH3084 dose meter is a intelligent meter which is controlled by a new-style single chip. And it is principal for detecting dose and dose rate of Χ and γ radiation. It can set thresholds. It can send out alarm signal overing the alarm thresholds. It is mainly used in the fields of radiant workstation、CIQ、industry nondestructive flaw detection、nuclear power plant、isotopic application and 60Co radiological medical treatment.
CHARACTERISTICS:
1、Detector: GM counter tube;
2、Energy response: ＜±30%（50KeV—1.3MeV）;
3、dose rate response: 0—∞;
4、Measurement range:
Dose rate: 00.01 usv/h—01.00 msv/h;
Dose: 00.01uSv—99.99mSv;
5、Measurement time: 5s;
6、Relative error: ＜±20%;(137Cs);
7、dose rate and dose alarm thresholds: set;
8、Battery under voltage indication: it stops working and displays low power;
9、Power supply and Power consumption: two pieces of AA batteries, power consumption ＜2mA;
10、Temperature: ＜±10%（-10℃～+40℃）;
11、Humidity: ＜±15%（95%RH +40℃）;
12、Size: 118Χ65Χ25mm;
13、Weight: ＜100g;
OPERATION:
Battery loading and counting reset:
Open battery box cover and put 2 AA batteries in, it auto rest and display 00.08usv/h.
Change work mode:
setting mode switch, it displays dose rate or dose.
Turn on or turn off power:
Setting power switch ,turning off it turns on, turning on it turns off.
Set:
Setting set switch, it can set thresholds of dose and dose rate. In the mode of setting dose rate, set mode switch can change every number of dose rate. In the mode of setting dose, set mode switch can change every number of dose. In the mode of setting sound, set mode switch can change have sound or no sound.
Self-test
Under background level condition, alarm 30 times every second， it’s good to work.
Meter stops work and displays low power when it is low power. It’s time to replace the batteries and record dose.
DOSE VALUES REFERENCES
1) According to recommendations of ICRP publication 60:
The dose limination of occupational people is following, Effective dose limit is 100 msv for 5 years, average value for one year is 20 msv, the value of 50 msv can not be over for any one year.
Annual dose limitation for residens is 5 msv.
2) Relation formula of irrediation dose and dose equivalent:
1sv=100rem≈100R
1usv/h≈100uR/h
