Introduction

Selecting the right sensor is one of the key steps in designing and implementing instrumentation systems. The sensor must have adequate accuracy, stability, and resistance to environmental conditions to ensure reliable system performance.

Sensor Selection Criteria

1. Type of measured parameter: temperature, pressure, flow, level, pH, etc.

2. Environmental conditions: temperature, humidity, presence of corrosive or flammable substances

3. Measurement range: must match the process operating range

4. Accuracy: depends on the sensitivity of the control system

5. Signal output: analog, digital, or HART

6. Protection standards: such as IP65, IP67, or ATEX for hazardous areas

Common Mistakes

• Selecting a sensor with an excessively high range (reduces accuracy)

• Ignoring body material in corrosive environments

• Incompatibility between signal type and controller

Conclusion

Sensor selection should not be based on price alone; it must be carried out by considering technical requirements and process conditions.

💡 Engineers at Petro Tajhiz Atrin are ready to provide specialized consultation for selecting process sensors tailored to industrial project requirements.