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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Omega LVF-210, 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 Omega LVF-210 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 Omega LVF-210. 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 Omega LVF-210 should contain:
- informations concerning technical data of Omega LVF-210
- name of the manufacturer and a year of construction of the Omega LVF-210 item
- rules of operation, control and maintenance of the Omega LVF-210 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 Omega LVF-210 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 LVF-210, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Omega 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 LVF-210.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Omega LVF-210 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
NRTL/C I P 68 http://www .omega.com e-mail: info@omega.com “ U ser ’ s Guide L TU-101, L VU-150, L VC-152 L VC-100 & L VF-210 S er i es Powered Level Sw itch Where Do I Find Everything I Need for Process Measurement and Contr ol? OMEGA…Of Course! TEMPERA TURE 䡺 ⻬ Thermocouple, RTD & Thermistor Pr obes, Connectors, Panels & Ass[...]
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Page 2
Step One SPECIFICA TIONS Orientation: Accuracy: Repeatability: Supply voltage: Consumption: Contact type: Contact rating: Contact output: Process temp.: Pressure: Sensor rating: Cable type: Cable length: Process mount: Mount. gasket: Classification: CE compliance: Universal ± 1 mm in water ± 0.5 mm in water 12-36 VDC 25 mA maximum (1) SPST relay [...]
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Page 3
Step T wo DIMENSIONS 10’ Cable (3m) 3.0" (76mm) 2.3" (57mm) 4.7" (120mm) 0.7" (18mm) 3/4" NPT (3/4" G) 3/4" NPT (3/4" Rp) 0.7" (19mm) 2.8" (71mm) 2.1" (54mm) 4.5" (114mm) 3/4" NPT (3/4" G) 3/4" NPT (3/4" Rp) 10’ Cable (3m) 1.3" (32mm) 10’ Cable (3m) 0.7"[...]
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Page 4
Step Three Step Four SAFETY PRECAUTIONS INTRODUCTION About this Manual: PLEASE READ THE ENTIRE MANUAL PRIOR TO INST ALLING OR USING THIS PRODUCT . This manual includes information on all models of Omega’ s powered level switches: L TU-101 series, L VU-150 series, L VC-152 series, L VC- 100 series and L VF-210 series. Please refer to the part numb[...]
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Page 5
Step Five Step Six INST ALLA TION ELECTRICAL Through W all Installation: Omega’ s powered level switches may be installed through the top, side or bottom of a tank wall. The sensor has male 3/4" NPT threads on either side of a 15/16" wrench flat. This enables the user to select the sensor ’ s mounting orientation, installed outside of[...]
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Page 6
Step Seven Step Eight WIRING WIRING Wiring to a Omega Controller: L VCN-1 10 Series Controller (4 or 20 mA signal output) LCVN-120/-130/-140 Series Controller (4 or 20 mA signal output) [Dry Condition] Sensor (NO) RED GRN SHLD WHT BLK LOAD LOAD OR [+] [-] [Dry Condition] Sensor (NC) BLK GRN SHLD WHT RED LOAD LOAD OR [+] [-] [Dry Condition] Sensor ([...]
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Page 7
Step T en MAINTENANCE General: The powered level switch requires no periodic maintenance except cleaning as required. It is the responsibility of the user to determine the appropriate maintenance schedule, based on the specific charac- teristics of the application liquids. Cleaning Procedure: 1. Power: Make Sure that all power to the sensor , contr[...]