How should a meter be connected when measuring a horn strobe circuit current draw?

To measure the current draw of a horn strobe circuit accurately, the meter must be connected in series with the circuit. This is because a current meter is designed to measure the flow of current, and for an accurate measurement, it needs to become part of the circuit. When connected in series, the current flowing through the circuit also flows through the meter, allowing it to accurately display the total current draw.

If the meter were connected in parallel, it would create a short circuit condition, leading to incorrect readings and potentially damaging the meter or the circuit. Connecting the meter at the end of the circuit or in any random position might not provide the full current flow measurement and could lead to inaccurate readings. For precise measurement of current in electrical circuits, such as in fire alarm systems, series connection is always the appropriate method.