YokogawaAAR181-S00Input Module

Measuring Principle

By applying the occurrence of electromotive force proportional to the flow velocity when fluid moves in the magnetic field, the flowmeter can measure the flow velocity of conductive liquid. It calculates the instantaneous flow rate, integrated flow rate, etc. from the measured flow velocity.

Trip units

3RV1 motor starter protectors are equipped with inverse-time delayed overload release based on the bimetal principle and with instantaneous electronic trip units (electromagnetic shortcircuit releases).

The overload releases can be adjusted in accordance with the load current. The electronic trip units are permanently set to a value

13 times the rated current and thus enable trouble-free starting of motors.

Motor starter protectors for line-side transformer protection are set to 20 times the rated current to prevent tripping as a result of

high transformer inrush current.

The scale cover can be sealed to prevent unauthorized adjustments to the set current.

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