氨氮在线分析仪纳氏试剂法PhotoTek6000NH3NWord文档格式.docx

1、 电路系统集成设计并且与湿化学组件完全隔离，运行安全、故障率低测试原理游离态的氨或铵离子等形式存在的氨氮与纳氏试剂反应生成黄棕色络合物,在430nm测量其吸光度A，根据吸已经存储好的标准曲线计算出样品浓度。技术参数测量参数氨氮测量方法纳氏试剂比色法测量围02mg/L，010mg/L；0100mg/L，0800mg/L清洗调零自动或手动、用户可设定维护周期1个月重现性5%（低量程）准确度零点漂移2%F.S分析模块可扩展至3通道仪器校准自动、用户可编程通讯接口RS232/RS485/4-20Ma功率200W安装方式机柜/壁挂PhotoTek 6000-NH3-N氨氮在线分析仪朗石（气敏电极法）-氨

2、氮在线自动监测仪式一款以气敏电极法为监测原理，可以在线连续测定、实时读取、存储和分析，可广泛应用于地表水、饮用水或水源地、以及一般工业污水和城镇污水厂的在线监测。PhotoTek 6500具有一体化电极；在实际测试中，稳定性好，试剂用量小，维护量小等特点广泛应用于地表水（河流、湖泊、水库）、饮用水源地、自来水管网等的水质自动连续监测，服务于环保部门、水务部门、大中型企业等。采用氨气敏电极标准加入法，方便质量控制，即使氨氮含量很低也可实现准确测量；试剂用量少，维护量小，价格和维护费用低；正面液路维护，具有自动采样和自清洗功能；精选中文界面，使用简单，操作方便；对所监测参数设置核查值，准确核对每一

3、个测量数据，即时了解仪器运行状况，对检测数据的有效性作出判断；功能可扩展（在仪器增加对进样预处理、排除干扰的配件或预留配件位置），保证仪器可以长期正常稳定地运行；独立的存储功能，存储数据安全可靠；数据传输可靠，集成多种传输手段，具备4-20mA（四通道）模拟输出，8个DI数字量输入及RS485/232数据接口,同时支持MODBUS数据处理方式访问和控制机器；测量围大，可自动切换量程，拓宽了仪器的适用围，可以用在地表水，饮用水，也可以应用于污染源等在线监测上；检测原理氨气敏电极电极是一个置于碱性电极液中的pH电极，水中的氨气分子通过氨半渗透膜进入电极，从而改变电极液的pH值，pH电极检测其变化，

4、所测得的电动势与水样中氨浓度符合能斯特方程。由此可测得样品电位值，确定水样中的氨氮含量。氨气敏电极标准加入法检测周期10min30min0.0010.0mg/L，10.0100 mg/L，1001000 mg/L最低检出限0.03 mg/L重复性误差3%FS5%FS量程漂移响应时间3min温度补偿精度0.1mg/L以MTBF720h/次实际水样比对测试10%PhotoTek 6000-NH3-NAmmonia nitrogen on-line analyzer - stone （Nas reagent method）6000-NH3-N PhotoTek is a microcomputer

5、controlled automatic on-line analyzer, which can be applied to the detection of a variety of water quality such as water, surface water and industrial wastewater. The detection method of the instrument conforms to the national standard GB7479-97 water quality - Determination of ammonium nitrate reag

6、ent colorimetric method, can be long-term unattended operation.Typical applicationWidely used in automatic and continuous monitoring of rivers, lakes, reservoirs, water pipe network, municipal sewage and industrial wastewater （such as: medical institutions, liquor, non-ferrous metal smelting, non-fe

7、rrous metal mining selection, printing and dyeing, chemical, paper, leather, pharmaceutical, rare earth, sugar, farming）.Product featuresThe GB7479-87 analysis method to follow the national standard and industry standard HJ/T101-2003The double difference of advanced optical design and adaptive algor

8、ithm of temperature measurement, the results are stable and reliableThe automatic dilution device equipped with high precision, wide measuring range, applicable to all types of water- each liquid through quantitative pump and pump sampling, sampling accurate matching, without cross contaminationThe

9、flow system has the advantages of simple structure, no complicated parts, without the use of special tools, convenient maintenanceThe complete isolation circuit system integration design and wet chemical components, safe operation, low failure rateTest principleThe free state of ammonia or ammonium

10、ions exist in the form of ammonia nitrogen and Nesslers reagent reaction generated yellow brown complex and measuring the absorbance at 430 nm, depending on the ceiling has a good storage standard curve to calculate the concentration of the sample.Technical parametersMeasurement parameters of ammoni

11、a nitrogenMethod of measurement of the colorimetric methodMeasuring range of 0 2mg/L, 0 10mg/L, 0 100mg/L, 0 800mg/LZero or manual, user can set upMaintenance cycle 1 monthsReproducibility is less than 5% （low range）The accuracy of less than 5% （low range）Zero drift 2%F.SAnalysis module can be expan

12、ded to 3 channelsAutomatic instrument calibration, user programmableCommunication interface RS232/RS485/4-20MaPower 200WInstallation cabinet / wall6000-NH3-N PhotoTek ammonia nitrogen on-line analyzer, long stone （gas sensitive electrode method）Ammonia nitrogen on-line automatic monitoring ceremony

13、a with the gas sensing electrode method for monitoring principle can be online continuous measurement, real-time read, storage and analysis can be widely used in surface water, drinking water or water, and general industrial wastewater and urban sewage treatment plant of online monitoring. PhotoTek

14、6500 has integrated electrode; in practice, the stability is good, the reagent consumption is small, the maintenance is small and so on.Automatic and continuous monitoring of water quality of widely used in surface water （rivers, lakes and reservoirs）, drinking water sources, water pipe network etc.

15、, service to the environmental protection departments, water companies, large and medium-sized enterprises.The standard method of ammonia gas sensing electrode is adopted to facilitate the quality control;With less reagent consumption, low maintenance, low price and maintenance costs;The maintenance

16、 of positive liquid path has the function of automatic sampling and self cleaning;Selection of the Chinese interface, the use of simple, easy to operate;To set up the verification value of the monitoring parameters, to accurately check every measurement data, to understand the operation of the instr

17、ument, and to make a judgment on the validity of the test data;Function can be extended （in the instrument to increase the pre - processing, excluding the interference of parts or accessories reserved for the location）, to ensure that the instrument can be normal and stable operation of the normal;I

18、ndependent storage, storage data safe and reliable;Reliable data transmission and integration of multiple transmission means, with 4-20mA （Quad） analog output, 8 Di digital input and RS485 / 232 data interface, also support the Modbus data processing methods to access and control the machine;Wide ra

19、nge of measurement can be automatically switching range, widening the scope of the instrument can be used in surface water, drinking water, can also be applied to the pollution sources and other online monitoring;Detection principleAmmonia gas sensing electrode is placed alkaline electrode solution

20、pH electrode, the ammonia molecules in the water by ammonia semi permeable membrane into the electrode, thus changing the electrode solution pH, pH electrode detection the change, the measured electromotive force and water ammonia concentration with the Nernst equation. This can be measured sample p

21、otential value, determine the content of ammonia nitrogen in water samples.Standard addition method for detection of ammonia sensitive electrodeDetection period 10min30minMeasurement range of 10.0100, mg/L 1001000, mg/L 0.0010.0mg/LThe lowest detection limit was 0.03 mg/LRepeatability error 3%FSZero drift 5%FSRange drift 5%FSResponse time is less than 3minTemperature compensation precision less than 0.1mg/LMTBF = 720h/Actual water sample ratio test 10%