What is the purpose of the Range Switch on a radiation survey meter?

The purpose of the Range Switch on a radiation survey meter is to determine the appropriate scale to be displayed. This feature allows the user to adjust the sensitivity of the meter to effectively measure radiation levels across different ranges. By selecting the appropriate range, the user can ensure that the meter provides accurate readings, whether the radiation levels are low or high.

For instance, if the radiation levels are expected to be very low, setting the meter to a higher sensitivity range allows the device to detect smaller amounts of radiation. Conversely, if high radiation levels are present, adjusting to a lower sensitivity range prevents the meter from being overwhelmed and gives a clearer indicator of the radiation levels. Thus, the Range Switch is vital for obtaining reliable measurements when conducting radiation surveys.