Yokogawa RAGN User Manual

Page 6

<1. INTRODUCTION>

1-2

IM 01R01B10-00E-E 2nd edition: November 01, 2011-00

Warranty
• The warranty of this instrument shall cover the
period noted on the quotation presented to the
Purchaser at the time of purchase. The Seller
shall repair the instrument free of charge when
the failure occurred during the warranty period.
• All inquiries on instrument failure should be
directed to the Seller’s sales representative from
whom you purchased the instrument or your
nearest sales office of the Seller.
• Should the instrument fail, contact the Seller
specifying the model and instrument number of
the product in question. Be specific in describing
details on the failure and the process in which
the failure occurred. It will be helpful if

schematic diagrams and/or records of data are
attached to the failed instrument.
• Whether or not the failed instrument should be
repaired free of charge shall be left solely to the
discretion of the Seller as a result of an
inspection by the Seller.

The Purchaser shall not be entitled to
receive repair services from the Seller free
of charge, even during the warranty period,
if the malfunction or damage is due to:
• improper and/or inadequate maintenance of the
instrument in question by the Purchaser.
• handling, use or storage of the instrument in
question beyond the design and/or specifications
requirements.
• use of the instrument in question in a location
not conforming to the conditions specified in the
Seller’s General Specification or Instruction
Manual.
• retrofitting and/or repair by an other party than
the Seller or a party to whom the Seller has
entrusted repair services.
• improper relocation of the instrument in question
after delivery.
• reason of force measure such as fires,
earthquakes, storms/ floods, thunder/lightning, or
other reasons not attributable to the instrument
in question.
• YOKOGAWA gives no warranty for the improper
use of glass flow meters. Due to the uncontrollably
of the material YOKOGAWA cannot guarantee
that the material is fracture-proof.

• When removing the instrument from hazardous
processes, avoid contact with the fluid and the
interior of the meter.
• In case of Explosion proof type instrument,
further requirements and differences are
described in Chapter 6 " EXPLOSION

PROTECTED TYPE INSTRUMENTS”. The
description in Chapter 6 is prior to other

descriptions in this instruction manual.

Notices regarding EMC
The Rotameter

RAGN with option /GR2 ... /GR8

is conform to the European EMC Guideline and
fulfills the following standards:
DIN EN 61000-4-2 : level 3
DIN EN 61000-4-3 : level 2
DIN EN 61000-4-4 : level 3
DIN EN 61000-4-6 : level 2
DIN EN 55011 : group 1 / class A
The

RAGN

with option /GR2 ... /GR8

is a class A

product and should be used and installed properly
according to the EMC Class A requirements.

Although the inductive ring sensor has been
designed to resist high frequency electrical
noise, if a radio transceiver is used near the
transmitter or it external wiring, the transmitter
may be affected by high frequency noise pickup.
To test for such effects, bring the transceiver in
use slowly from a distance of several meters from
the transmitter, and observe the measurement
loop for noise effects. Thereafter, always use the
transceiver outside the area affected by noise.

WARNING

IMPORTANT