Yokogawa Magnetic Flowmeter AE335-MG

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 cover of the converter

Install the new fuse ensuring it is the specified type

Reattach the display ensuring the connector is secure

Flowmeter Care for Long-term Non-use

Confirm sealing conditions of the terminal box screw and wiring ports.

Are drain plugs or waterproof glands provided for conduit piping?

Inspect the sealing condition of the terminal box.

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).

Maintenance Servicing with Power On

Is the power turned off during maintenance servicing?

Use a gas detector to check for explosive gas presence if servicing with power on.

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.

Perform zero and span adjustments without opening the equipment cover.

Ensure the equipment is in test mode

Is the OUTPUT FUNCTION set to 'BI DIRECTION' or 'AUTO 2 RANGES'?

Test Output Settings Using Data Setting Keys

Set test output for the following functions

Return functions to original status after test

Test Output Settings Via the BT200

Set test output for the following functions via BT200

Return functions to original status after test