MODEL400ACPORTABLETRITIUMINAIRMONITOR便携式气氚.PDF

MODEL 400AC PORTABLE TRITIUM IN AIR MONITOR 便携式气氚监测器，型号 400AC The Model 400AC portable tritium monitor is based on our popular Model 400 platform and is a small , high sensitivity , hand held, battery (rechargeable) operated, fully gamma-compensated survey meter with RA 232 serial data output and user recalibration features. 型号 400AC 便携式氚监测器以我们受欢迎的型号 400 系列为基础，是一款小巧、高灵敏度、手持电池（可充电）驱动的完 全伽马补偿测量仪。具有 RA232 系列数据输出和用户重新校准功能。    ADDITIONAL FEATURES OF THE MODEL 400AC (NOT AVAILABLE ON THE MODEL 400SBDYC)  型号 400AC 附加功能  （型号400SBDYC 无此功能）  • Disable Gamma Compensation                关闭伽玛补偿  • Rechargeable Batteries and Rechargeable Battery Capacity Monitor Power Supply and High Bias Voltage Failure Monitors.                 可充电电池和可充电电池容量显示。电源和高偏置电压故障监测  • Manual and Automatic Calibration                手动和自动校准  a) Calibration with Tritium Gas: 氚气校正 b) Calibration with a Gamma Source : 伽玛源校正 (Using Gamma-Tritium Equivalence Ratio) • Improved Gamma Compensation and Noise Immunity                改进了的伽玛补偿及抗扰度  • Constant Air Flow Control               气流持续控制  • 50%Fewer High Bias Voltage Batteries                减半高偏置电压电池  SENSITIVITY  敏感度  The 400AC is useful for measurements as low as 2 µCi/m3.The Overhoff electrometer, which measures to below 10-16 amperes, combines low noise and high zero stability. 400AC 辐射测量低至 2 µCi/m3 。Overhoff 的静电计测量低至 10‐16 安培且低噪音和高零点稳定性。  RADON INTERFERENCE, NOISE RESPONSE  氡干扰，噪音响应  For an unambiguous measurement of very low tritium a monitor must be able to ignore response to ambient radon, The 400AC incorporates this capability and therefore produces accurate, fast and drift free measurements to nearly ±1 µCi/m3 . 要准确测量极低氚，监测器必须能够忽略对周围氡的响应。400AC 具有这种功能，因此测量结果准确、快速且无漂移，接近 ±1 µCi/m3   . TOTAL