Why is regular sensor calibration and maintenance essential for controls?

Why is regular sensor calibration and maintenance essential for controls?

• A. To extend the warranty period regardless of sensor condition.
• B. To maintain accuracy, avoid drift, and ensure reliable operation and energy efficiency.
• C. To increase hardware cost and maintenance burden without benefits.
• D. To reduce communication bandwidth.

Answer: (B)

Regular sensor calibration and maintenance ensures that the measurements feeding the control loop reflect real conditions. Sensors drift over time due to aging, temperature changes, contamination, and wiring issues, so readings can deviate from the true value. When the controller acts on inaccurate data, it can overreact or underreact, leading to unstable operation, comfort problems, and wasted energy. Keeping sensors calibrated and clean preserves accuracy, reduces drift, and supports reliable operation, which in turn enables the system to meet setpoints efficiently and with proper response. Maintenance tasks like cleaning, verifying readings against known references, recalibrating within tolerance, and inspecting connections help catch faults early and extend sensor life. This isn’t about extending warranties, adding unnecessary costs, or reducing communication bandwidth; it’s about ensuring the control system makes correct, energy-efficient decisions based on true measurements.

Regular sensor calibration and maintenance ensures that the measurements feeding the control loop reflect real conditions. Sensors drift over time due to aging, temperature changes, contamination, and wiring issues, so readings can deviate from the true value. When the controller acts on inaccurate data, it can overreact or underreact, leading to unstable operation, comfort problems, and wasted energy. Keeping sensors calibrated and clean preserves accuracy, reduces drift, and supports reliable operation, which in turn enables the system to meet setpoints efficiently and with proper response. Maintenance tasks like cleaning, verifying readings against known references, recalibrating within tolerance, and inspecting connections help catch faults early and extend sensor life. This isn’t about extending warranties, adding unnecessary costs, or reducing communication bandwidth; it’s about ensuring the control system makes correct, energy-efficient decisions based on true measurements.