Sensor’s Operating Temperature Range and Compensated Temperature Range

Sensor’s Operating Temperature Range and Compensated Temperature Range

Operating Temperature Range

This is the temperature range over which the sensor will operate without damage. It is specified between a minimum and maximum temperature, for example -20 to +50°C.

Compensated Temperature Range

This is the temperature range over which the sensor will function within a set specification defined by thermal effects on zero and thermal effects on span. And as both these effects exist concurrently, the total effect on the output is the sum of the two individual effects.

It is important to remember that the temperature-compensation circuit is mounted inside the body of the sensor. Therefore, to ensure proper compensation the complete front assembly of the sensor must be heated or cooled.

If the sensor is subjected to a heat shock, either via the pressure media or from the surrounding the environment, large errors are possible that can exceed the specification. However, this effect does depend on the sensor’s construction, the technology used and the purpose for which the sensor has been designed.