Most of analyser can’t be used for inline measurement due to the process condition 

Reliability/可靠性

Compatible with analyzer/与分析仪一致性

Timely Fast response/快速响应 

Representative /有代表性

Inexpensive/经济

Safe/安全

Reliable可靠性

The number one reason for analyzer breakdown and none availability is the sample system./分析仪故障和不好用的一个原因就是由于采样系统的问题

The systems engineer has to have an understanding of the process and the challenges associated with the measurement./系统工程师对于工艺要有很好的理解并对于所要测量的组份有全局概念.

There is no substitute for experience./无可替代的工程经历.

There may be more than one way to make a sample system./有很多种方式可以组装采样系统.

Simple is best./越简单,实用越好.

High quality correct materials components a must./必须选用高品质的元器件才能造就高质量的采样系统.

Compatible with analyzer/与分析仪一致性

The sample system is required to condition the sample for the analyzer./采样系统要能够处理好样品再送到分析仪.

Pressure./压力的处理

Temperature./温度的处理

Particulates./颗粒杂质的处理

Phase./正确的工艺相处理

Water and Unwanted Contaminants./水和其他液体的污染的处理

Materials of construction./元件的材质的选用

Timely Fast response/快速响应 

Process DCS and Advanced control schemes need reliable timely data./工艺DCS和先进控制都需要可靠的及时的工艺数据做参考.

Transport and conditioning lag times can add more than the analysis time./样品传输和预处理滞后时间可能增加分析的周期时间.

Careful experienced design is required to reduce time lag to acceptable levels./有经验的设计者可以降低滞后时间到可以接受的水平.

Representative /有代表性

Any conditioning changes the composition of the sample. /预处理不能改变样品的组份.

Careful selection of elements in the sample system is required to ensure the sample analyzed is similar as far as possible to the process. /认真仔细的选择采样系统的元器件来保证被分析样品和工艺样品的一致性.

Inexpensive/经济

预处理不能Simple is best for analyzer Sample systems. /简单实用是最好的分析采样系统.

Total cost of ownership should be considered./要为业主的节约花费.

Safety/安全

Temperature. Less than 70 deg C /温度要低于70 度

Toxic. Avoid “measure something else”/毒性.要避免测量.

Provide purges./要有吹扫.

Pressure relief valves./要有安全泄放.