Omega Engineering LVU-90 manual

1
2
3
4
5
6

Go to page of

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Omega Engineering LVU-90, 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 Engineering LVU-90 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 Engineering LVU-90. 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 Engineering LVU-90 should contain:
- informations concerning technical data of Omega Engineering LVU-90
- name of the manufacturer and a year of construction of the Omega Engineering LVU-90 item
- rules of operation, control and maintenance of the Omega Engineering LVU-90 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 Engineering LVU-90 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 Engineering LVU-90, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Omega Engineering 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 Engineering LVU-90.

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 Engineering LVU-90 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

  • Page 1

    Where Do I Find Everything I Need for Process Measurement and Contr ol? OMEGA…Of Course! TEMPERA TURE M U Thermocouple, RTD & Thermistor Pr obes, Connectors, Panels & Assemblies M U W ire: Thermocouple, R TD & Thermistor M U Calibrators & Ice Point References M U Recorders, Controllers & Pr ocess Monitors M U Infrared Pyromete[...]

  • Page 2

    Step One SPECIFICA TIONS Range: 3.6" to 6' (9 cm to 1.8 m) Accuracy: ± .25% of span in air Resolution: 0.125” (3 mm) Frequency: 83 kHz (nominal) Pulse rate: 2 pulses per second Beam width: 8° conical Dead band: 3.6” (9 cm) Supply voltage: 12-36 VDC Max loop resistance: 600 Ohms @ 36 VDC Signal output: 4-20 mA, 12-36 VDC Fail-safe di[...]

  • Page 3

    Step T wo Step Three SAFETY PRECAUTIONS WIRING About this Manual: PLEASE READ THE ENTIRE MANUAL PRIOR T O INST ALLING OR USING THIS PRODUCT . This manual includes information on the L VU-90 series continuous non-contact level transmitter from OMEGA. Please refer to the part number located on the sensor label to verify the exact model which you have[...]

  • Page 4

    Step Four Step Five WIRING INST ALLA TION The L VCN-90 transmitter may be installed through the top wall of a tank. Installation requires a 3/4" NPT fitting or blind flange. 1. Install the appropriate 3/4" fitting in the top wall of the tank. Prior to installation, make sure that the fitting has been installed prop- erly and checked for l[...]

  • Page 5

    Step Six Step Seven CALIBRA TION CALIBRA TION The L VCN-90 is factory calibrated with a fixed measurement span of 6 feet. The 4 mA position is located 72" from the transducer face. The 20 mA position is located 3.6 inches from the transducer face. Refer to the current to distance and distance to current conversion charts in step seven for read[...]

  • Page 6

    Step Eight Step Nine MAINTENANCE General: The L VCN-90 series level transmitter itself 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 characteristics of the application liquids. Cleaning Procedure: 1. Power: Make Sure that al[...]