Yokogawa AXFA11 User Manual
User’s
Manual
AXFA11G
Magnetic Flowmeter
Remote Converter
[Hardware Edition/Software Edition]
Manual Change No. 13-001-E
Please use the attached sheets for the pages listed below in IM 01E20C01-01E (7th).
Page and Item
Page 1-2
1.1 Using the Magnetic Flowmeter Safety
Page 1-3
1.2 Warranty
Added the warning notes in (1) installation, (3)
Operation, and (4) Maintenance.
Changed the page number.
Contents of Correction
1.3 Combination Remote Flowtubes
Page 4-1
4.1 Wiring Precautions
Page 4-2
4.2 Cables
Page 4-6
4.4.3 Precautions for Wiring of Power
Supply Cables
Page 4-8
Figure 4.4.9, 4 to 20 mA DC Output
Connection
Page 4-9
Figure 4.4.11, Active Pulse Output Con-
nection (Optional code EM)
Page 11-4
Withstand Voltage
Page 11-4
Changed the page number.
Added the important note on “wiring”.
Changed the page number.
Changed the numbers of “IEC” in warning note.
Changed the value of maximum load resistance.
Changed the figure.
Changed the values of the withstand voltage.
Safety Requirement Standards
Yokogawa Electric Corporation
Added the number of “EN” standard.
Aug. 19, 2013
1. INTRODUCTION
1.1 Using the Magnetic
Flowmeter Safely
(1) Installation
WARNING
•Installation of the magnetic flowmeter must be
performed by expert engineer or skilled personnel. No operator shall be permitted to perform
procedures relating to installation.
• The magnetic flowmeter must be installed
within the specification conditions.
• The magnetic 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 magnetic
flowmeter. When moving the magnetic flowmeter, always use a trolley and have at least two
people carry it.
•When the magnetic 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
substance, avoid contact with the fluid and
avoid inhaling any residual gas, even after the
instrument has been taken off the piping line for
maintenance and so forth.
•Do not apply excessive weight, for example, a
person sttepping on the magnetic flowmeter.
•All procedures relating to installation must
comply with the electrical code of the country
where it is used.
(3) Operation
WARNING
•When opening the cover, wait for more than 10
minutes after turning off the power. Only
expert engineer or skilled personnel are permitted to open the cover.
• Do not open the cover in wet weather or humid
environment. When the cover is open, stated
enclosure protection is not applicable.
• Be sure to set parameters as "Protect" on the
write protect function after finish of parameter
setting work.
Under extremely rare case, the infra-red
switches may respond unexpectedly in such
conditions as sticking ball of water or
extraneous substances on the surface of
display panel glass according to the principle of
infra-red switch operation.
Its probability rises in such cases as sticking
rain water by storm or other similar situation
and washing up work near flowmeter installation place.
Either to illuminate or stop illuminating the infrared switches by the flashlight may cause the
mis-reaction.
Refer to Chapter 6 "Menu P: Parameter Protection Items" and section "10.2.3" how to use the
write protect function in detail.
(4) Maintenance
WARNING
(2) Wiring
WARNING
• The wiring of the magnetic 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.
• Maintenance of the magnetic flowmeter should
be performed by the trained personnel having
knowledge of safety standard. No operator
shall be permitted to perform any operations
relating to maintenance.
•When opening the cover, wait for more than 10
minutes after turning off the power.
• Do not open the cover in wet weather or humid
environment. When the cover is open, stated
enclosure protection is not applicable.
•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.
1-2
IM 01E20C01-01E
1. INTRODUCTION
1.2 Warranty
• The terms of this instrument that are guaranteed are
described in the quotation. We will make any repairs
that may become necessary during the guaranteed
term free of charge.
•Please contact our sales office if this instrument
requires repair.
• If the instrument is faulty, contact us with concrete
details about the problem and the length of time it
has been faulty, and state the model and serial
number. We would appreciate the inclusion of
drawings or additional information.
• The results of our examination will determine
whether the meter will be repaired free of charge or
on an at-cost basis.
䊏 The guarantee will not apply in the following
cases:
• Damage due to negligence or insufficient maintenance on the part of the customer.
• Problems or damage resulting from handling,
operation or storage that violates the intended use
and specifications.
• Problems that result from using or performing
maintenance on the instrument in a location that
does not comply with the installation location
specified by Yokogawa.
• Problems or damage resulting from repairs or
modifications not performed by Yokogawa or
someone authorized by Yokogawa.
• Problems or damage resulting from inappropriate
reinstallation after delivery.
•Problems or damage resulting from disasters such as
fires, earthquakes, storms, floods, or lightning strikes
and external causes.
1.3 Combination Remote
Flowtubes
IMPORTANT
•The AXFA11 Magnetic Flowmeter Converter
should be used in combination with the following remote flowtubes:
AXFA11G ⇔AXF002ⵧ-N to AXF26Lⵧ-N
Contact Yokogawa before using it in combination with flowtubes other than those listed
above.
• The model AXFⵧⵧⵧC remote flowtube with
optional code JF3 (TIIS flame proof type)
cannot be combined with the AXFA11 converter. In this case, use the AXFA14 converter.
• If the converter combined with the AXF magnetic flowmeter remote flowtube is changed
from the AXFA11 to AXFA14 or vice versa, the
meter factor of the remote flowtube must be
readjusted according to its flow calibration.
CAUTION
In case of combination with the explosion proof
type remote flowtube (AXFⵧⵧⵧC-N) for
ATEX, FM, and CSA certification, please see the
manual IM 01E20D01-01E. The construction of
the instrument, installation, external wiring,
maintenance, and repair are strictly restricted,
and non-observance or negligence of these
restriction would result dangerous condition.
䊏 Trademarks:
ADMAG, AXF and ADMAG AXF are registered
trademarks of Yokogawa Electric Corporation.
Company names and product names used in this
material are registered trademarks or trademarks of
their respective owners.
1-3
IM 01E20C01-01E
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