Offset Adjustment - SMC Networks D-M9K Operation Manual

■Offset adjustment

[Note] During offset adjustment, if the sensor unit is mounted to an actuator, remove the sensor unit
from the actuator so that no magnetic field is present. Keep the sensor unit away from any
magnetic field as far as possible because the sensor may detect a magnetic field even when the
operation light is not ON.
(1) Connect the sensor unit to the amplifier unit, and connect the amplifier unit to the power supply.
(2) Insert a small flat blade screwdriver into the adjustment trimmer (ADJ.) to turn the trimmer clockwise or
counterclockwise.
Be careful where the screwdriver is inserted. Inserting the screwdriver into the indicator light (OFFSET)
hole may damage the light.
The recommended torque applied to the adjustment trimmer must be 20 mNm or less. The effective
rotation is 12 turns.
The adjustment trimmer does not have any rotational stop. If the desired adjustment is not achieved by
rotating in one direction, then try the other direction.
(3) When the indicator light (OFF SET) is red, adjustment is complete.
Offset Adjustment
Offset Adjustment is the optimization of the electrical reference point of the sensor.
Without offset adjustment, ON/OFF of the output signal cannot be operated correctly.
When the sensor unit is used for the first time, always perform offset adjustment.
After the adjustment, further adjustment is not necessary unless the sensor unit is replaced.
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No.D-※S-OMG0006-C