User's Manual AXF Magnetic Flowmeter Integral ... - Yokogawa

5. MAINTENANCE
5. MAINTENANCE
WARNING
• Maintenance work must be carried out by
expert engineer or skilled personnel and not by
operators.
• Before opening the cover, it is important to
ensure that at least 10 minutes have passed
since the power was turned off. Furthermore,
opening of the cover must also be carried out
by expert engineer or skilled personnel.
CAUTION
• Explosion protected type must be, as a rule,
removed to a non-hazardous area for maintenance
and be disassembled and reassembled
to the original state.
• The cover is locked by the special screw. In
case of opening the cover, use the hexagonal
wrench attached.
• Be sure to lock the cover by the special screw
using the hexagonal wrench attached after
installing the cover.
5.1 Changing Direction of
Electrical Connection
F0501.EPS
(4) Using the hexagonal wrench, loosen the screw in
the neck.
(5) Turn the converter or the terminal box in the
desired direction.
NOTE
The converter and the terminal box can be
turned –140 degree to +180 degree from the
arrow mark indicating the flow direction. Do not
exceed these angle.
(6) Using the hexagonal wrench, retighten the neck
screw.
IMPORTANT
The following types can not be changed direction
of electrical connection after delivery.
• Submersible Type.
• Optional code DHC (for district heating and
cooling or condensation-proof).
• Size of 1100 mm (44 in.) or larger.
(1) The following tools are required to change the
direction of the electrical connection:
• Hexagonal wrench (nominal size 1.5): Comes
with the instrument.
• Wrench
(2) Turn off the power to the flowmeter.
(3) Using the wrench, loosen the hexagonal nut at the
neck of the instrument.
F0502.EPS
(7) Using the wrench, retighten the hexagonal nut at
the neck. After that, check that the converter or
terminal box is fixed.
5-1
IM 01E20D01-01E