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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Omega Vehicle Security PSW490B, 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.
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Unfortunately, only a few customers devote their time to read an instruction of Omega Vehicle Security PSW490B. 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.
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First and foremost, an user manual of Omega Vehicle Security PSW490B should contain:
- informations concerning technical data of Omega Vehicle Security PSW490B
- name of the manufacturer and a year of construction of the Omega Vehicle Security PSW490B item
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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Omega Vehicle Security PSW490B 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 Omega Vehicle Security PSW490B, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Omega Vehicle Security 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 Omega Vehicle Security PSW490B.
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Table of contents for the manual
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Page 1
www .omega.com e-mail: info@omega.com omega.com TM ® U ser ’ s Guide DSW490B and DSW790B Pressure Contr ol Switches[...]
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Page 2
Servicing Nor th America: USA: One Omega Drive, P.O. Box 4047 ISO 9001 Certified Stamford CT 06907-0047 TEL: (203) 359-1660 FAX: (203) 359-7700 e-mail: info@omega.com Canada: 976 Bergar Laval (Quebec) H7L 5A1 TEL: (514) 856-6928 FAX: (514) 856-6886 e-mail: info@omega.ca For immediate technical or application assistance: USA and Canada: Sales Servic[...]
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Page 3
INTRODUCTION The OMEGA differ ential pressure switch is a precision built U.L. appr oved control device which features a mechanical snap action switch. Controllers ar e available for operation on vari- ous pressur e differentials with fixed or variable switching differ entials. The standard electrical switch is SPDT and is available with various el[...]
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Page 4
For accurate setpoint calibration, mount the switch on a calibration stand, a pump or catalog Omega DWT 1305 deadweight gauge tester . A suitable refer ence standard such as a T est Gauge is necessary to observe convenient changes in pressur e. A typical calibration procedur e would be as follows: Static W orking Pressure – 300 psi Adjustable Dif[...]
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Page 5
DIFFERENTIAL PRESSURE SWITCH – INCHES OF WATER DIFFERENTIAL PRESSURE SWITCH – PSID A Ø 0.28 (3 Holes) D C G E B H 3/4 NPT 1/4 NPT Female 1/4 NPT Female A Ø 0.28 (3 Holes) C 1/4 NPT High Pressure Inlet 1/4 NPT Low Pressure Inlet B D E F H G 3/4 NPT C A U T I O N T O P R E V E N T I G N I T I O N O F H A Z A R D O U S A T M O S P H E R E T U R [...]
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Page 6
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Page 7
W ARRANTY / DISCLAIMER OME GA ENGINEERING, INC. war rants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purc hase. OM E GA ’ s W ar ranty adds an additional one (1) month grace period to the normal one (1) year pr oduct warranty to cover handling and shipping time. This ensures that OME GA ’[...]
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Page 8
XXX0000XX M3420/0599 Where Do I Find Ever ything I Need for Pr ocess Measurement and Control? OM EGA…Of Course! TEMPERA TURE Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies Wire: Thermocouple, RTD & Thermistor Calibrators & Ice Point References Recorders, Controllers & Pro[...]