What Are the Different Field Operator Jobs?

Field instrument refers to the instrument installed in the production site, used to measure various process parameters, execute various control instructions or convert signals and achieve communication.

Field instrument

Field instrument refers to the instrument installed in the production site, used to measure various process parameters, execute various control instructions or convert signals and achieve communication.

Chinese name

Field instrument

Place of installation

Production site

Function

For measuring various process parameters

Species

Thermometer, pressure gauge,

Common instruments for measuring process parameters are thermometers, pressure gauges,

Gauges are the eyes of industrial production. Field instrument is related to production in industrial production

According to different types, field instruments have different working principles. Machinery manufacturing, electronics technology, materials technology,

Different types of field instruments have different operating methods. For details, refer to the manual of each product model.

On-site instrument repair and maintenance is an essential process monitoring and maintenance link. Generally, special personnel are hired to clarify their job responsibilities and specialize in the work.

1. First, before analyzing field instrument failures, you must thoroughly understand the production process, production process conditions and conditions of related instrument systems, understand the design scheme and design intent of the instrument system, and the structure, characteristics, performance, and parameter requirements of the instrument system Wait.

2. Before analyzing and checking the failure of the on-site instrumentation system, it is necessary to understand the production load and changes in the parameters of the raw materials from the on-site operators, view the record curve of the faulty instrument, and conduct a comprehensive analysis to determine the cause of the instrumentation failure. ^[1]

3. If the instrument recording curve is a dead line (the line that has not changed at all is called a dead line), or the recording curve originally fluctuated, it now suddenly becomes a straight line; the fault is likely to be in the instrument system. Because the current recording instruments are mostly DCS computer systems, the sensitivity is very high, and changes in parameters can be reflected very sensitively. At this time, you can artificially change the process parameters to see the curve changes. If it does not change, it is basically determined that there is a problem with the instrument system; if there is a normal change, it is basically determined that there is no major problem with the instrument system.

4. When changing the process parameters, it is found that the recording curve changes suddenly or jumps to the maximum or minimum, and the fault at this time is often in the instrument system.

5. Before the fault occurred, the instrument recording curve always behaved normally. After the fluctuation occurred, the recording curve became irregular or made the system difficult to control, and even the manual operation could not be controlled. At this time, the fault may be caused by the process operating system.