Yokogawa RotaMASS 3-Series - Manual (Page 10)

1. INTrOdUCTION
1-2 IM 01R04B04-00E-E 8th edition March 01, 2011 -00 All Rights Reserved. Copyright © 2003, Rota Yokogawa
Protective grounding terminal
Functional grounding terminal
(This terminal should not be used as a pro-
tective grounding terminal.)
Alternating current
Direct current
1.1 Using the Coriolis
Flowmeter Safely
WARNING
(1) Installation
• Installation of the Coriolis flowmeter must be
performed by expert engineer or skilled personnel. No
operator shall be permitted to perform procedures
relating to installation.
• The Coriolis flowmeter is a heavy instrument.
Be careful that no damage is caused to personnel
through accidentally dropping it, or by exerting
excessive force on the Coriolis flowmeter.
When moving the Coriolis flowmeter, always
use a trolley and have at least two people carry
it.
• When the Coriolis flowmeter is processing
hot fluids, the instrument itself may become
extremely hot. Take sufficient care not to get
burnt.
• Where the fluid being processed is a toxic sub-
stance, avoid contact with the fluid and avoid
inhaling any residual gas, even after the instru-
ment has been taken off the line for
maintenance and so forth.
• All procedures relating to installation must comply
with the electrical code of the country where it
is used.
(2) Wiring
• The wiring of the Coriolis flowmeter must be
performed by expert engineer or skilled personnel.
No operator shall be permitted to perform
procedures relating to wiring.
• When connecting the wiring, check that the
supply voltage is within the range of the voltage
specified for this instrument before connecting
the power cable. In addition, check that no
voltage is applied to the power cable before
connecting the wiring.
• The protective grounding must be connected
securely at the terminal with the mark to
avoid danger to personnel.
(3) Operation
• Do not open the cover until the power has been
off for at least 10 minutes. Only expert engineer
or skilled personnel are permitted to open the
cover.
(4) Maintenance
• Maintenance on the Coriolis flowmeter should
be performed by expert engineer or skilled
personnel. No operator shall be permitted to
perform any operations relating to maintenance.
• Always conform to maintenance procedures
outlined in this manual. If necessary, contact
Yokogawa.
• Care should be taken to prevent the build up
of dirt, dust or other substances on the display
panel glass or data plate. If these surfaces do
get dirty, wipe them clean with a soft dry cloth.
(5) European Pressure Equipment Directive
(PED)
• When using the instrument as a PED-compliant
product, be sure to read Chapter 10 before
use.
(6) Hazardous Duty Type Instruments
• For explosion proof type instruments the
description in chapter 9 "EXPLOSION PRO-
TECTED TYPE INSTRUMENT" has priority to
the other descriptions in this instruction manual.
• All instruction manuals for ATEX Ex related
products are available in English, German and
French. Should you require Ex related instruc-
tions in your local language, you should contact
your nearest Yokogawa office or representative.
• Only trained personal should install and
maintain instruments in hazardous areas.
• The protective grounding terminal must be
connected to a suitable IS grounding system.
• Avoid mechanical generated sparks while
working on the equipment and peripherial
devices in hazardous areas.