Why should you not turn a Magnetic Pickup Unit (MPU) more than 1/8 turn at a time?

Turning a Magnetic Pickup Unit (MPU) more than 1/8 turn at a time is essential to avoid damage to the MPU. This component is sensitive and can be adversely affected by excessive movement. Over-rotating the MPU can lead to misalignments or potentially damaging the internal mechanisms that detect magnetic fields. Keeping adjustments to a minimal rotation helps ensure the integrity and longevity of the device, safeguarding its functionality.

While sensitivity and ease of adjustment might be considerations in the use of an MPU, they do not directly relate to the reason for limiting the turn to 1/8. Calibration errors are also a concern with adjustments, but the primary focus should always be on protecting the unit from damage, which is critical for maintaining reliable operation.