What is the second step in the process of preparing a direct reading instrument for use?

The second step in the process of preparing a direct reading instrument for use involves checking the battery. This step is crucial because the functionality of a direct reading instrument depends heavily on its power source. Ensuring that the battery is in good condition and sufficiently charged allows the technician to rely on the instrument to operate properly during hazardous materials response situations.

If the battery is not checked and is either dead or low on power, it can lead to malfunction or failure of the instrument right when it is needed most, potentially jeopardizing the safety of the personnel and the effectiveness of the response. Checking the battery early in the preparation process ensures that technicians can proceed with confidence to the subsequent steps, knowing the instrument will function as intended.