土壤CO2通量测定�?参数-价格-中国粉体罐�/title>

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} }); function showliuyan(me, showtype){ if(showtype==0){ //$("#Content").val($("#Content").attr('placeholder')); Content= document.getElementById('PopMsgFrom').Content.getAttribute('placeholder'); document.getElementById('PopMsgFrom').Content.value=Content; } if(showtype==1){ // $("#Content").val($(me).text()); alert($(me).text()); document.getElementById('PopMsgFrom').Content.value=$(me).text(); } $(".fxp").css("display","flex"); } function close_popwin(){ $(".fxp").css("display","none"); // 关闭虚拟电话后的留言� $(".dhxj").css("display","none"); $(".dhxjbox").css("display", "none"); $(".dhxjbox2").css("display", "none"); return false; } </script>  <div class="cpjs"> <div class="cpjs_tab"> <div class="js_cpjj" style="border-bottom: 3px solid #1479d7; color: #1479d7;">产品介绍</div> <div class="js_cxd">创新炸�/div> <div class="js_xgfa">相关方案</div> <div class="js_xgzl">相关资料</div> <div class="js_yhpl">用户评论</div> <div class="js_gsdt">公司动�?/div> <div class="js_wsj">问商宵�/div> </div> <script> $(function(){ // 切换 $(".cpjs_tab a").click(function(){ $(".cpjs_tab a").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <strong>仪器简介：</strong></p><p><p>WEST Systems 便携土壤气体通量� 可快速、精确地测量土壤CO2、CH4和H2S的通量。广泛适用于农业、森林、草地、沼泽、湿地等的土壤呼吸研究，生物气（沼气）散失、垃圾掩埋研究，火山和地热研究等。该系统能够对土壤通量进行长期测量和短期测量，是世界上**一款同步进行CO2/CH4/H2S测量的仪器、�/p></p><p><strong>技术参数：</strong></p><p><p>1、CO2通量测量（非散射红外分析仪，WS-LI840和WS-LI820及DRAGER叁种型号可选） </p><p> WS-L1840 </p><p> CO2 </p><p> 测量原理� 非色散红外分� </p><p> 测量量程� 0~3000 ppm </p><p> 准确度： 读数�?.5% </p><p> 校准漂移：零点漂移：<0.15ppm/��C; 跨度漂移９�0.03%/��C; </p><p> 370 ppm时总漂移：<0.4ppm/��C� </p><p> 370ppm�?sec 信号滤除RMS噪声９�1 ppm </p><p> 对水蒸气的灵敏度 <0.1ppm CO2/ppt H2O </p><p> H2O </p><p> 测量原理� 非色散红外分� </p><p> 测量量程� 0-80 ppt </p><p> 准确度： 读数�?.5% </p><p> 校准漂移�? ppt时漂移：<0.003 ppt/��C� </p><p> 10 ppt时跨度漂移：<0.03 %/��C� </p><p> 10 ppt时总漂移： <0.009 ppt/��C� </p><p> 10ppt�?秒的信号滤除RMS噪声９�0.01 ppt </p><p> 对CO2的灵敏度� <0.0001 ppt H2O/ppm CO2 </p><p> WS-L1820 </p><p> CO2 </p><p> 测量原理� 非色散红外分� </p><p> 测量量程� 1000 ppm� 0-2000 ppm�?000 ppm� 20000 ppm可� </p><p> 准确度： 14cm的光路时，小于读数的 2.5%� </p><p> 5cm的光路时，小于读数的 4% </p><p> 校准漂移� 零点漂移� <0.15 ppm/��C; 跨度漂移� < 0.03 %/��C� </p><p> 370 ppm时总漂移： <0.4 ppm/��C� </p><p> 370ppm�?sec 信号滤除RMS噪声� <1 ppm </p><p> DRAGER（CO2� </p><p> 测量原理� 非色散红外分� </p><p> 测量量程� 2000 ppm�?00％操作者定� </p><p> 准确度： >350ppm时为读数�?% </p><p> 信号噪音� 1％读数，4�?0mA线性输� </p><p> 工作温度� -20�?5� </p><p> 相对湿度� 0�?5� </p><p> 电源需求： 14-24 V DC典型300mA @ 24V </p><p> 2.CH4通量测量 </p><p> 测量原理：红外分光光度计 </p><p> 量程� 10000ppmV </p><p> 精度� 读数�?％，重复�?.5% </p><p> 零点漂移�?.3% </p><p> CH4通量测量范围�?.5�?50molm2day-1 </p><p> 3.H2S通量测量 </p><p> 测量原理：电化学� </p><p> 量程� 20ppmV </p><p> 精度� 读数�?％，重复�?.5% </p><p> 零点漂移�?.3% </p><p> H2S通量测量范围�?.0025�?.5molm2day-1 </p><p> 4、测量时间： </p><p> 开机后预热20min，典型的测量时间�?�?min </p><p> 5、电源： </p><p> 2节镍氢电� 14.4V 2.6 A/h ，可�?小时 </p><p> 6、测量室 </p><p> 测量室A� 直径200mm，高100mm，暴露土地面积：0.0314m2，净容积�?.003m3� </p><p> 重量1.5Kg，混合风扇：80RPM </p><p> 测量室B：直�?00mm，高200mm，暴露土地面积：0.0314m2，净容积�?.006m3� </p><p> 重量2.2Kg� 混合风扇�?0RPM� </p><p> 7、掌上电脑： </p><p> 数据存储 </p><p> 8、软件： </p><p> 数据处理和下� </p><p> 9、重量： </p><p> 不超�?.3 Kg，带有背包和运输箰�/p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; 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