内容标题24

  • <tr id='8WYUZp'><strong id='8WYUZp'></strong><small id='8WYUZp'></small><button id='8WYUZp'></button><li id='8WYUZp'><noscript id='8WYUZp'><big id='8WYUZp'></big><dt id='8WYUZp'></dt></noscript></li></tr><ol id='8WYUZp'><option id='8WYUZp'><table id='8WYUZp'><blockquote id='8WYUZp'><tbody id='8WYUZp'></tbody></blockquote></table></option></ol><u id='8WYUZp'></u><kbd id='8WYUZp'><kbd id='8WYUZp'></kbd></kbd>

    <code id='8WYUZp'><strong id='8WYUZp'></strong></code>

    <fieldset id='8WYUZp'></fieldset>
          <span id='8WYUZp'></span>

              <ins id='8WYUZp'></ins>
              <acronym id='8WYUZp'><em id='8WYUZp'></em><td id='8WYUZp'><div id='8WYUZp'></div></td></acronym><address id='8WYUZp'><big id='8WYUZp'><big id='8WYUZp'></big><legend id='8WYUZp'></legend></big></address>

              <i id='8WYUZp'><div id='8WYUZp'><ins id='8WYUZp'></ins></div></i>
              <i id='8WYUZp'></i>
            1. <dl id='8WYUZp'></dl>
              1. <blockquote id='8WYUZp'><q id='8WYUZp'><noscript id='8WYUZp'></noscript><dt id='8WYUZp'></dt></q></blockquote><noframes id='8WYUZp'><i id='8WYUZp'></i>
                SO2 analyzer

                Model: aqms-1000 ultraviolet fluorescence analyzer. 

                (1) Technical principles 

                The sulfur dioxide analyzer uses ultraviolet fluorescence technology for detection. The optical system is mainly composed of light source, gas chamber, PMT, reference detector, etc. during measurement, the ultraviolet light source emits 214nm light, and generates 330nm fluorescence through SO2 analysis excited by the gas chamber. The fluorescence intensity has a linear relationship with SO2 concentration. The reference detector is used to detect the light source intensity, and PMT detects the fluorescence intensity, root SO2 concentration is calculated according to the light intensity of reference detector and PMT detector.

                clip_image002.jpg


                (2) Technical parameters

                指标

                数值

                测定范围

                0~500ppb、大范围0~20,000ppb(可调)

                单位

                ppb,ppm,ug/m3,mg/m3

                零点噪声

                <0.2ppb(RMS)

                最低检出限(LDL)

                0.4ppb

                零点漂移

                <1ppb/24小时

                量程漂移

                <5ppb/24小时

                响应时间

                <120s

                线性

                <1%/FS

                重复性

                <1% 50ppb

                采样流量范》围

                800cm3/min±10%

                环境温度

                5℃~40℃

                尺寸(H×W×D)

                178mm×432mm×613mm

                重量

                <15kg

                电源

                200V~240V、50/60Hz、400W

                模拟输出

                10V、5V、1V、0.1V(可选)

                通讯规格

                RS232、RS485


                (3) Functional features

                using UV fluorescence technology

                stable flow control system 

                pressure compensation and temperature compensation options 

                external AC mechanical vacuum pump 

                use electronic flow sensor to detect and display sample gas flow 

                high efficiency hydrocarbon remover and unique optical design, strong anti-interference ability 

                self check function of light source intensity attenuation 

                timing dark current compensation, high stability

                continuous self check with alarm function 

                task software allows monitoring of test data during operation 

                bidirectional RS-232 port for remote operation 

                adaptive signal filtering technology to optimize response time 

                color display, touch screen operation

                large capacity memory, automatic storage of historical data 

                automatic monitoring of instrument parameters