Omega LTUR Series, User Manual

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6. Panel Function

PWR: Power Supply (Green Light)

SIGNAL: Output Indication (Red Light)

FSH: Power on. The signal LED is on and the relay acts.
While the tuning fork level switch contacts with measured material, the
signal LED is off and the relay is in not act.

FSL: Power on. The signal LED is off and the relay is in not act.
While the tuning fork level switch contacts with measured material, the
signal LED is on and the relay is in act.

SENSITIVITY L: Low Sensitivity

SENSITIVITY H: High Sensitivity
Fig-2. Diagram of Relay contact output
Fig-3. Diagram of PNP/NPN transistor output
Sensitivity Adjustment/Calibration:
Sensitivity knob located on the right side of the PCB board. It approximately allows
22 turns for sensitivity adjustment. For higher sensitivity need, user please turn the
knob clockwise toward H and counterclockwise toward L for lower sensitivity. Factory
default is set in high. The physical contact point is located at 15mm from the tip of the
fork and it will slightly moving upward or downward along the axis of fork while the
sensitivity is changed. For example, the point will move downward for L sensitivity
and vice versa. The total range of the physical contact point can be adjusted around
60mm.