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The rules should oblige the seller to give the purchaser an operating instrucion of Emerson series dt, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Emerson series dt one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Emerson series dt. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Emerson series dt should contain:
- informations concerning technical data of Emerson series dt
- name of the manufacturer and a year of construction of the Emerson series dt item
- rules of operation, control and maintenance of the Emerson series dt item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Emerson series dt alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Emerson series dt, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Emerson service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Emerson series dt.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Emerson series dt item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
Mobrey Vertical Controls Level Installation, opera tion & maintenanc e instructions IP152, Rev AD April 2012 www.emersonprocess.com Series B S eries X Series D For instructions s pecific to ATEX appro ved flam eproof models in ha zardous area insta llations, refer to acc ompanying leafl et IP152/SI Exd[...]
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2 Level Installation, opera tion & maintenanc e instructions IP152, Rev A D April 2012[...]
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3 Level Installation, opera tion & maintenanc e instructions IP152, Rev AD April 2012 Mobrey vertical magnetic level controls Principle of Oper ation Switching is achieved with the Mobrey “three-magnet” system, giving snap-action “latch-on” switching. Vertical m ovement of the pr imar y magnet A in a glandless pres sure tube sim ultaneo[...]
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4 Level Installation, opera tion & maintenanc e instructions IP152, Rev A D April 2012 Electrical characteristics 4 Contact Ty pe : D4, X4, P4, H4 2x independent SPST AA mak e on rise : BB mak e on fall 8 Contact Ty pe : D8, X8, P8, H8 Double pole d ouble throw (4x independe nt SPST) AA mak e on rise : BB mak e on fall Note: For DPDT operation,[...]
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5 Level Installation, opera tion & maintenanc e instructions IP152, Rev AD April 2012 P4, P8, H4, H8 Switch Mechanisms - Simple Apparatus These Switch Mechanisms in a standard switch housing are classified as “Simple Apparatus” when used in Intrinsically Safe circuits. They comply with the requirements of EN6 0079-0, General Requirements an[...]
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6 Level Installation, opera tion & maintenanc e instructions IP152, Rev A D April 2012 Series B & X Installation Instru ctions When installing, using or maintaining ex ternal chambers supplied compliant with the Pressure Equipment Directive, refer also to the Safet y Information (leaflet No. I P152/SI) supplied with the product for further [...]
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7 Level Installation, opera tion & maintenanc e instructions IP152, Rev AD April 2012 Operating Level Data Models T y pe No. B 11F, B 12F, B 13F, B 14F, B 17D, X 11F, X 12F, X 13F, X 14F, X [...]
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8 Level Installation, opera tion & maintenanc e instructions IP152, Rev A D April 2012 Series D Installation Instru ctions Installation shall be carried out b y suitabl y trained personnel in accorda nce with applicable codes of practice. 1. Remove all sealing tapes, tie strings and pro tective packings from the control prior to installation. I[...]
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9 Level Installation, opera tion & maintenanc e instructions IP152, Rev AD April 2012 Switching Point Adjustment Each switch mechanism is mounte d on a bracket, which is secured on the pressure tube by a locking screw and lock nut. These can be loosened, allowing the bracket to be adjusted up or down as required. Al ways ensure that the small p[...]
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10 Level Installation, opera tion & maintenanc e instructions IP152, Rev A D April 2012 Maintenance of the Mobrey vertical lev el controls Inspection and maintenance shal l be carried out by suitably trained pe rsonnel in accordance with applicable codes of practice. Series B-Vertical Integral T y pe This type of control is of the ‘sealed cha[...]
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11 Level Installation, opera tion & maintenanc e instructions IP152, Rev AD April 2012 5. Inspect the chamber or stilling tube and remove any de posits. 6. Check float, float rod, and magnet for excessive wear, clean and replace as necessary. 7. Fit replacement joint and reassemble, taking ca re not to bend the float rod. Use bolt torque values[...]
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12 Level Installation, opera tion & maintenanc e instructions IP152, Rev A D April 2012 When fitt ing a spare or re placement sw itch mecha nism IMPORT ANT NOTE If a spare switch mechanism is fitted at any time, it is impo rtant that the magnet system is left in the correct mode. After installation of a replacement s witch mechanism, always che[...]
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13 Level Installation, opera tion & maintenanc e instructions IP152, Rev AD April 2012 Bolting T orques Information in this section is to the best of our knowledge correct. Since conditions of use are beyond our control use rs must satisfy themselves that bolt/torques are suitable for the flange/process/conditions of the applications. Bolting T[...]
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14 Level Installation, opera tion & maintenanc e instructions IP152, Rev A D April 2012 Bolts should be lubricated with suitable gre ase. Correct bolt t ightening sequ ence:- IM PORT ANT NOTE: Sheet gasket materials This product cont ains or is f itted with non as bestos gaskets in accordance with BS7531 Grad e X, which specifies m aximum opera[...]
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15 Level Installation, opera tion & maintenanc e instructions IP152, Rev AD April 2012[...]
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Level Installation, opera tion & maintenanc e instructions IP152, Rev A D April 2012 The Emerson logo is a trade mark and service mark of Emerson Electric Co. Rosemount is a registered trademark of Rosemount Inc. Mobrey is a registered trademark of Rosemount Measurement Ltd. All other marks are the property of their respective owners We reserve[...]