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微机控制宽量程碘连续监测仪的原理是基于连续测量活性炭取样盒上累积放射性增长率，而算出碘的瞬时浓度。该监测仪采用井型取样盒，使其对元素碘和有机碘具有大致相同的探测效率。使用高、低量程组合探头，扩大测量范围以及采用特殊设计的运算模式，加热入口空气和稳峰等措施，提高监测仪性能。在测量周期２ｈ，取样流量２．２Ｌ／ｓ时，最低可探测浓度０．５ｍＢｑ／Ｌ，测量范围５×１０￣（－４）～２．５×１０￣４Ｂｑ／Ｌ，５００ｈ长期稳定性好于１％，并具有自动显示、打印、存储和报答等功能，可用于核设施正常运行及一般事故的监测。
The principle of a microcomputer-controlled, wide-range iodine continuous monitor is based on the continuous measurement of the cumulative radioactive growth rate on the activated carbon sampling box and the calculation of the instantaneous concentration of iodine. The monitor uses a well-type sampling box that provides approximately the same detection efficiency for elemental iodine and organic iodine. Use high and low range combination probe, expand the measurement range and the use of specially designed computing mode, heating the inlet air and stabilizing measures to improve the monitor performance. The minimum detectable concentration is 0.5mBq / L at the measurement period of 2h and the sampling flow rate is 2.2L / s. The measuring range is 5 × 10 ~ (-4) ~ 2.5 × 10 ~ 4Bq / L, 500h long-term stability At 1%, with automatic display, printing, storage and reward functions, can be used for the normal operation of nuclear facilities and general accident monitoring.