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Product Introduction:HQ628 radioactivity standard activity meter is a new generation of high performance intelligent precision measurement standard instrument. This machine implements GB/ T10256-2013 standard, LED display, user friendly interface, complete nuclide database, high precision radioactive activity measurement, background automatic measurement and other functions. With excellent and stable performance, it is a special standard device for measuring the radioactive activity of ionizing radiation.Main technical parameters:Electrometer accuracy: better than ±2%System precision: better than FSD ±2%System linearity: within ±2%Repeatability: ±2%Ambient temperature: 0-45℃Relative humidity: <90%Host size: 10cm(length)*25.5(width)*11(height)Main engine weight: 2.5kgNote: The total accuracy of the measurement may be affected by the following factors:Electrometer accuracy, standard coefficient accuracy of specified nuclides, sample compositionAnd some vial or syringe calibration factors, electrometer calibration usedThe accuracy of the standard source.(1) Full scale display (FSD)(2000). System accuracy in Bq mode is better than ±2 minimum display Numbers.The linearity includes the response of ionization chamber to the range variation of high activity sample and electrometer.● Ionization chamber parameters:Resolution: 0.1Mbq (1 Ci)Response time: <5sDimensions: 14.5cm*32cm Weight :6kg.Measurement range: Maximum activity (99mTC in CAOMAC) 300GBq(8Ci)Maximum activity (other conditions) 240GBq(6.5Ci)Product Features:1. 100 nuclides can be set, and dozens of nuclides and commonly used nuclides in nuclear medicine can be directly measured (such as 99mTC, 113mIn, 131I, 125I, 67Ga, 201Ti, etc.).2. Measured in vivo nuclear medicine therapeutic nuclides 153Sm, 90Y, 186Re and positron 18F.3. Press the button to automatically deduct the background of environmental radiation. There is no need to adjust zero.4. Place the sample, carry out measurement and range conversion automatically; The measurement is fast and accurate with a range of 10 Curies (99mTc).5. Current and Curie (Ci) and Baker (Bq) can be used as display units.6. Keyboard modification and solidification of nuclide calibration coefficients, no development tools required.7, special thermal printer output nuclide activity measurement report. (optional)8. The computer can completely take over the function operation of activity meter on The Chinese Windows platform, and can set serial port address, scanning rate, data storage rate and panel nuclide name by itself (optional).