在线硫离子监测仪
典型应用：
工业生产过程用水/污水处理
仪器特点：
1、强大的人机对话功能，可编程定义多达10种分析方法。
2、可自定义多达三种校正方法。
3、8路中继输出，每路可编程。
4、报警：包括样品流速、试剂液位检测
5、可扩展至监测6路水样。
6、自动校准、自动清洗、自动填充试剂的全自动分析。
7、样品、试剂的消耗量很少，保证系统容易清洗，无记忆效应。
8、分析方法与APHA/AWWA/WEF中检测方法一致。
9、双波长技术可补偿水样浊度对测量结果的影响。
10、独特采样技术的采用最简化了对外围采样系统的要求
11、光纤探头的采用，最小化了维护工作
测量原理：
采用N ， N -二甲基对苯二胺草酸作显色剂。在含有高铁的酸性溶液中，硫离子与N ， N -二甲基对苯二胺草酸作用，生成蓝色络合物，颜色深度与水中硫离子浓度成正比。以650nm作为测量波长，810nm作为参比波长.
技术参数：
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量程范围
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0-5mg/L
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准 确 性
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±5%或±0.05 mg/L， 取较大者
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分 辨 率
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0.001ppm
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重 现 性
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读数或量程的±5%，取较大者
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测量周期
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15分钟
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样品流速
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50－900 ml/m
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样品接口
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1/4英寸卡套接头
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样品温度
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5－70℃
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样品中悬浮固体
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最多2％，最大颗粒尺寸0.05英寸（1.27mm）
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入口压力
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0 to 50 psig
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校准周期
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用户可选
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报警输出
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可编程设定
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模拟输出
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4-20mA输出，可编程
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电源要求
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100-240Vac，50/60Hz
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防护等级
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NEMA 4X（IP65）
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重量
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约36KG
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安装方式
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挂墙式安装（配有螺丝）
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认证
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符合绝大部分认证，包括CE认证
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SULFIDE
The colorimetric analysis of sulfide uses N,N-dimethyl para-phenylene-diamine oxalate as a color forming reagent, best for concentration ranges below 5 ppm with a normal range of 0 to 2 ppm.
Tytronics supports the colorimetric method with the Tytronics'® Sentinel.
TYTRONICS'® SENTINEL
Tytronics'® Sentinel is an on-line colorimetric analyzer, using a batch sampling technique that allows the use of 0.25" tubing for sample and reagent lines, so small amounts of solids will not affect instrument performance. A Kynar® cyclone filter can be supplied to remove excessive solids in the sample.
Other advantages of batch sampling are:
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Analytical results are not affected by sample and reagent flows;
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Analyses are only performed as frequently as required, minimizing reagent consumption.
The optics are designed with a dual wavelength configuration; use of a reference wavelength corrects for sample turbidity and coating on the dipping colorimetric probe.
The instrument has an auto blank feature which compensates for sample background color. Because of these features, weekly instrument calibration is sufficient, and calibration is automatically performed to insure instrument accuracy
METHOD
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Method: Colorimetric
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Range:
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0 to 5 ppm
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Sample Size:
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30 ml
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Reagent 1: Vol./analysis
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N,N-dimethyl-para-phenyl-enediamineoxalate/H2SO41 ml
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Reagent 2: Vol./analysis
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Ferric chloride5 ml
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Analysis Time
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15 min.
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Measurement Wavelength:
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650 nm
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Reference Wavelength:
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810 nm
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Tytronics Analyzers:
- Provide continuous on-line analysis of water or wastewater stream;
- Include self-checking for easy diagnostics;
- Minimize sampling requirements;
- Have multiple communication ports, including bi-directional RS 232.
Enhanced Features of Tytronics’ Sentinel:
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Programmable from 1 to 10 methods for a single analysis compound;
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Up to 3 different calibration methods;
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Eight relay outputs, multi-programmable on each relay;
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Alarm functions, including sample flow, reagent level detection;
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From 1 to 6 stream configurations standard
