Yokogawa Magnetic Flowmeter AE220-MG

Confirmation of Sealing Condition

Confirm the sealing conditions of the following

Are drain plugs or waterproof glands provided for conduit piping?

Inspect the sealing condition as previously mentioned

Inspect the inside of the terminal box

Is there any suspicion of water penetration into the flowmeter?

If water penetration is suspected, describe the circumstances (e.g., rainfall)

Ensure the power supply is turned OFF

Remove the display to access the fuse holder

Locate and remove the blown fuse

Retrieve the spare fuse from the converter cover

Install the new fuse ensuring it is the specified type

Settings for Test Output Using Data Setting Keys

Ensure functions are returned to original status during flow rate measurements

Setting for Test Output Via the BT200

Ensure functions are returned to original status during flow rate measurements

Ensure test outputs take priority over flow signal

Is the OUTPUT FUNCTION set to BI DIRECTION?

Maintenance Servicing with Power On

Is the power turned off during maintenance servicing?

Use a gas detector to check for explosive gas presence

Limit maintenance servicing to the following if explosive gas presence cannot be checked

Inspect flameproof apparatus for damage or corrosion

Inspect metal conduits and cables for mechanical and structural defects

Were adjustments made without opening the equipment cover?