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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Murphy DF Series, 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 Murphy DF Series 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 Murphy DF Series. 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 Murphy DF Series should contain:
- informations concerning technical data of Murphy DF Series
- name of the manufacturer and a year of construction of the Murphy DF Series item
- rules of operation, control and maintenance of the Murphy DF Series 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 Murphy DF Series 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 Murphy DF Series, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Murphy 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 Murphy DF Series.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Murphy DF Series 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
DF-94063N page 1 of 4 Installation and Operation of the DF Series Hydrostatic Head Level Switches DF-94063N Revised 09-03 Section 15 (00-02-0170) Please read the following information befor e installing . A visual inspection of this product for damage during shipping is rec- ommended before mounting. It is your responsibility to have a qualified pe[...]
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Page 2
TYPICAL APPLICATIONS DIMENSIONS T ypical W ater Flood Control System The diagram above displays eight DF Series switches installed on a Raw W ater tank and a Clear W ater tank. When raw water rises to predetermined level, DF#1 stops the supply pump. As tank level falls below the predetermined level, DF#2 starts the supply pump. If the tank level co[...]
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Page 3
DF-94063N page 3 of 4 The MAC1 V olume Air Cell when attached to the DF755 can monitor water levels on a sump. Activate alarms or start a pump directly . The MAC1 V olume Air Cell is non-corrosive and provides 1/4-20 stainless steel mounting studs. The MACT1 T ubing Kit provides 4 ft. (1.2 m) flexible, non-corrosive 1/4 in. (6 mm) tubing (cut to fi[...]
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Page 4
DF-94063N page 4 of 4 TYPICAL WIRING SERVICE PARTS N.O. C N.C. HIGH N.O. C N.C. LOW MOTOR DF755 #1 DF755 #2 Starts at Low Level, Stops at High Start motor when predetermined low level is reached and stop when high level is reached. Keeps tank level within selected limits. Motor starter equipped with H.O.A. MOTOR N.O. C N.C. HIGH N.O. C N.C. LOW DF7[...]