Model Y/11DM Pneumatic Differential Pressure ... - Yokogawa

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1-11. IntroductionThank you for purchasing the Yokogawa’sinstrument.The instrument is correctly calibrated at the factorybefore shipment. To ensure correct and efficientuse of the instrument, please read this manualthoroughly and fully understand how to operate theinstrument before operating it.• Regarding This Manual• This manual should be provided to the enduser.• The contents of this manual are subject tochange without prior notice.• All rights reserved. No part of this manual maybe reproduced in any form without Yokogawa’swritten permission.• Yokogawa makes no warranty of any kind withregard to this material, including, but not limitedto, implied warranty of merchantability andfitness for a particular purpose.• If any question arises or errors are found, or ifany information is missing from this manual,please inform the nearest Yokogawa salesoffice.• The specifications covered by this manual arelimited to those for the standard type under thespecified model number break-down and do notcover custom-made instrument.• Please note that changes in the specifications,construction, or component parts of theinstrument may not immediately be reflectedin this manual at the time of change, providedthat postponement of revisions will not causedifficulty to the user from a functional orperformance standpoint.• Safety Precautions• For the protection and safety of the operatorand the instrument or the system includingthe instrument, please be sure to follow theinstructions on safety described in this manualwhen handling this instrument. In case theinstrument is handled in contradiction to theseinstructions, Yokogawa does not guaranteesafety.• Yokogawa assumes no responsibilities for thisproduct except as stated in the warranty.• If the customer or any third party is harmed bythe use of this product, Yokogawa assumesno responsibility for any such harm owing toany defects in the product which were notpredictable, or for any indirect damages.• The following safety symbols are used in thismanual:WARNINGIndicates a potentially hazardous situation which,if not avoided, could result in death or seriousinjury.CAUTIONIndicates a potentially hazardous situation which,if not avoided, may result in minor or moderateinjury. It may also be used to alert against unsafepractices.IMPORTANTIndicates that operating the hardware or softwarein this manner may damage it or lead to systemfailure.NOTEDraws attention to information essential forunderstanding the operation and features.IM 02C01B06-01E
1-21.1 Safety PrecautionsWARNING• Instrument installed in the process is underpressure. Never loosen or tighten theprocess connector bolts as it may causedangerous spouting of process fluid.• During draining condensate or venting gasin transmitter pressure-detector section, takeappropriate care to avoid contact with theskin, eyes or body, or inhalation of vapors, ifthe accumulated process fluid may be toxicor otherwise harmful.Since draining condensate or bleedingoff gas gives the pressure measurementdisturbance, this should not be done whenthe loop is in operation.• If the accumulated process fluid may betoxic or otherwise harmful, take appropriatecare to avoid contact with the body, orinhalation of vapors even after dismountingthe instrument from process line formaintenance.IMPORTANT• Supply air must be clean and dry.- Supply air (pressurized) must not bedewed event at -40°C.- Air filter with 5μm (0.0002 inch) of filterelement maximum opening shall berecommended.- Oil filter should be provided to remove oilin the supply air.• Maximum supply air pressure of transmitterwithout fixed pressure regulator (GAS orNAS type) is 215 kPa. Should the pressureexceed 215 kPa, it is possible to break thepneumatic amplifier, bellows etc.• When weling piping during construction, takecare not to allow welding currents to flowthrough the transmitter.• Do not step on this instrument afterinstallation.• Applying a leakag-detecting fluid to theinstrument may damage the plastic partsresulting from corrosion or cracking.1.2 Warranty• The warranty shall cover the period noted onthe quotation presented to the purchaser at thetime of purchase. Problems occurred during thewarranty period shall basically be repaired freeof charge.• In case of problems, the customer shouldcontact the Yokogawa representative fromwhich the instrument was purchased, or thenearest Yokogawa office.• If a problem arises with this instrument,please inform us of the nature of the problemand the circumstances under which itdeveloped, including the model specificationand serial number. Any diagrams, data andother information you can include in yourcommunication will also be helpful.• Responsible party for repair cost for theproblems shall be determined by Yokogawabased on our investigation.• The Purchaser shall bear the responsibility forrepair costs, even during the warranty period, ifthe malfunction is due to:• Improper and/or inadequate maintenance bythe Purchaser.• Failure or damage due to improper handling,use or storage which is out of designconditions.• Use of the product in question in a locationnot conforming to the standards specifiedby the Yokogawa, or due to impropermaintenance of the installation location.• Failure or damage due to modification orrepair by the party except Yokogawa or whois requested by Yokogawa.• Malfunction or damage from improperrelocation of the product in question afterdelivery.• Reason of force majeure such as fires,earthquakes, storms/floods, thunder/lightening, or other natural disasters, ordisturbances, riots, warfare, or radioactivecontamination.IM 02C01B06-01E
Page 3: iiAppendix 1.5.9.1 Dashpot Removal.
Page 7 and 8: 2.3 Standard SpecificationsSpan Lim
Page 9 and 10: 2-42.6 Dimensions118Allow clearance
Page 11: 4. Operation4.1 Zero Adjustment4.1.
Page 14 and 15: 5-35.1.3 To Change Range of Transmi
Page 16 and 17: 5-55.4 To Clean Nozzle AssemblyAn a
Page 18: 5-75.9 Further DisassemblyIMPORTANT
Page 21 and 22: 5-105.9.10 Flapper AlignmentThe fla
Page 23 and 24: A-2A1.3 Calibration Procedure using
Page 25 and 26: 2Nov. 2012Subject to change without
Page 27: 4Item Part No. Qty DescriptionInteg

Model Y/11DM Pneumatic Differential Pressure ... - Yokogawa

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