Factors Affecting Temperature Transmitter Measurements

Temperature transmitters are being used in an increasingly wide range of applications, but users may encounter inaccurate measurements during operation. This article will help you understand exactly what factors affect the measurement results of temperature transmitters. Users should pay close attention to these factors during operation to avoid any adverse effects.

Impact of Interference

Various types of interference exist in the actual working environment of temperature transmitters. While temperature transmitters possess a certain degree of interference resistance, common sources include radio frequency interference, electrostatic interference, external magnetic field interference, and pulse interference. Users should select temperature transmitters with strong interference resistance based on their specific operating environment.

Impact of Ambient Temperature

The effect of ambient temperature fluctuations on temperature transmitters is known as temperature drift. This technical parameter is critical. Within the normal operating temperature range, the change in output per 10°C change in ambient temperature is specified as a percentage of the full scale range; generally, this does not exceed half of the instrument’s basic error.

Effects of Grounding

Temperature transmitters must be effectively grounded during use. Many failures of temperature transmitters or other instruments are caused by a lack of proper grounding, which can severely affect the transmitter’s output signal and may even directly result in damage to the device.