Problem:Temperature changes can significantly affect pressure readings. Pressure instruments often rely on materials such as metal or glass that expand or contract with temperature fluctuations, leading to inaccurate readings.
Solution:
Use Temperature Compensation: Many modern pressure calibrators come with built-in temperature compensation, which helps adjust the pressure readings based on the ambient temperature.
Conduct Calibrations at Stable Temperatures: Always perform pressure calibrations in environments where the temperature is controlled and stable. Allow the pressure instrument and calibration equipment to reach thermal equilibrium before starting the process.
Use a Temperature-Controlled Calibration Bath: For higher accuracy, consider using a temperature-controlled bath to calibrate instruments that are temperature-sensitive, ensuring that both the pressure and temperature variables are controlled.