Omega Vehicle Security Stud Sensor LV850 User Manual

Users Guide  
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LV850  
Level Sensor  
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LV850 LEVEL SENSOR  
Please follow these installation, connection and adjustment instructions  
carefully. Failure to comply with these instructions or misuse of this  
equipment will void your warranty.  
Equipment installation, connection and adjustment by qualified  
personnel only!  
i
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LV850 LEVEL SENSOR  
NOTES:  
ii  
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LV850 LEVEL SENSOR  
1 Description  
Level Sensor LV850 is suitable for liquids with low relative dielectric constant  
εr (e.g. oil). Units come with Minimum and Maximum selector switch.  
It operates on the principle of electrical capacitance changes arising when an  
electrode surrounded by air is immersed in the medium.  
• LED status display  
• Selection of minimum and maximum function by changeover switch.  
Minimum switching  
Normally the sensor is immersed and the green LED indicates. As the level  
drops below the sensor the green LED extinguishes.  
Maximum switching  
Normally the sensor is not immersed and the green LED indicates. As the  
level rises above the sensor the green LED extinguishes.  
• In the event of a short-circuit in the load circuit, the green LED will  
extinguish and the red LED will flash.  
1
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LV850 LEVEL SENSOR  
2 Technical Data  
Temperature range  
-20°C to +130 °C  
(-4°F to +266°F)  
to +150°C  
short-time  
(+302°F)  
Ambient temperature  
-20°C to +85°C  
(-4°F to +185°F)  
Pressure resistance  
Response delay  
Degree of protection  
Input voltage  
max. 25 bar (367.5 PSI)  
approx. 0.1 s  
IP 65  
DC 9 ... 36 V  
Option:  
- metal coupling for pipe extension (see fig. 2) if the sensor is to be used as an  
immersion sensor  
mark to demonstrate compliance with applicable directive  
2
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LV850 LEVEL SENSOR  
3 Level Sensor Installation  
NOTE  
The Level Sensor may be installed in any attitude.  
1. Ensure sufficient clearance space (see Fig. 1) in the container wall.  
• Ensure a type 3/4" NPT or G3/4A thread in the container wall has been  
provided.  
2. Screw the Level Sensor into the threaded aperture using a recognized  
sealing material.  
3. When tightening the level sensor please use the flats provided (SW32).  
CAUTION  
Do not overtighten.  
3
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LV850 LEVEL SENSOR  
4 Connection  
CAUTION  
Check that the supply voltage corresponds with the voltage  
rating shown on the system.  
1. Loosen the gland (PG7)(see Fig. 1).  
2. Unscrew the cover of the housing (C).  
3. Feed the supply cable through the gland (PG7) and the cover (C), or  
through the metal coupling supplied as option (see Fig. 2).  
4. Connect the cable to the terminal block (TB) (see Fig. 3).  
5. Set selector switch (S) to minimum or maximum:  
1. - minimum  
2. - maximum  
6. Connect the supply voltage. LED (red) indicates.  
4
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LV850 LEVEL SENSOR  
7. Increase the level until the Level Sensor is immersed in the medium.  
8. Minimum Sensor:  
• Turn the potentiometer screw (E) to (-) until the LED (green) extinguishes.  
Then slowly turn to (+) until the LED indicates. Adjust the screw a further  
full turn to (+) to compensate for any tolerance.  
9. Maximum Sensor:  
• Turn the potentiometer screw (E) to (+) until the LED (green) extinguishes.  
Then slowly turn to (-) until the LED indicates. Adjust the screw a further  
full turn to (-) to compensate for any tolerance.  
10. Replace and tighten the cover (C) or the metal coupling (option).  
11. Replace and tighten the cable gland nut (PG7).  
The Level Sensor is now connected, adjusted and ready for operation.  
5 Operating Difficulties  
Problem: The Level Sensor fails to operate correctly.  
Solution:  
- The surface of the sensor probe should be carefully cleaned from inside the  
container.  
5
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LV850 LEVEL SENSOR  
NOTES:  
6
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WARRANTY/DISCLAIMER  
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and  
workmanship for a period of 13 months from date of purchase. OMEGA’s Warranty adds an  
additional one (1) month grace period to the normal one (1) year product warranty to cover  
handling and shipping time. This ensures that OMEGA’s customers receive maximum  
coverage on each product.  
If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer  
Service Department will issue an Authorized Return (AR) number immediately upon phone or  
written request. Upon examination by OMEGA, if the unit is found to be defective, it will be  
repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting  
from any action of the purchaser, including but not limited to mishandling, improper interfacing,  
operation outside of design limits, improper repair, or unauthorized modification. This  
WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence  
of having been damaged as a result of excessive corrosion; or current, heat, moisture or vibra-  
tion; improper specification; misapplication; misuse or other operating conditions outside of  
OMEGA’s control. Components which wear are not warranted, including but not limited to  
contact points, fuses, and triacs.  
OMEGA is pleased to offer suggestions on the use of its various products. However,  
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability  
for any damages that result from the use of its products in accordance with information  
provided by OMEGA, either verbal or written. OMEGA warrants only that the parts  
manufactured by it will be as specified and free of defects. OMEGA MAKES NO OTHER  
WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS OR  
IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY  
WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE  
HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth  
herein are exclusive, and the total liability of OMEGA with respect to this order, whether  
based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall  
not exceed the purchase price of the component upon which liability is based. In no event  
shall OMEGA be liable for consequential, incidental or special damages.  
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as  
a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity;  
or (2) in medical applications or used on humans. Should any Product(s) be used in or with any  
nuclear installation or activity, medical application, used on humans, or misused in any way,  
OMEGA assumes no responsibility as set forth in our basic WARRANTY/DISCLAIMER language,  
and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability  
or damage whatsoever arising out of the use of the Product(s) in such a manner.  
RETURN REQUESTS/INQUIRIES  
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department.  
BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN  
AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT  
(IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be  
marked on the outside of the return package and on any correspondence.  
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to  
prevent breakage in transit.  
FOR WARRANTY RETURNS, please have  
the following information available BEFORE  
contacting OMEGA:  
1. Purchase Order number under which  
the product was PURCHASED,  
2. Model and serial number of the product  
under warranty, and  
FOR NON-WARRANTY REPAIRS, consult  
OMEGA for current repair charges. Have the  
following information available BEFORE  
contacting OMEGA:  
1. Purchase Order number to cover the COST  
of the repair,  
2. Model and serial number of the product, and  
3. Repair instructions and/or specific  
problems relative to the product.  
3. Repair instructions and/or specific problems  
relative to the product.  
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible.  
This affords our customers the latest in technology and engineering.  
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.  
© Copyright 2004 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,  
reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without  
the prior written consent of OMEGA ENGINEERING, INC.  
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Where Do I Find Everything I Need for  
Process Measurement and Control?  
OMEGA…Of Course!  
TEMPERATURE  
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Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies  
Wire: Thermocouple, RTD & Thermistor  
Calibrators & Ice Point References  
Recorders, Controllers & Process Monitors  
Infrared Pyrometers  
PRESSURE, STRAIN AND FORCE  
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Transducers & Strain Gages  
Load Cells & Pressure Gages  
Displacement Transducers  
Instrumentation & Accessories  
FLOW/LEVEL  
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Rotameters, Gas Mass Flowmeters & Flow Computers  
Air Velocity Indicators  
Turbine/Paddlewheel Systems  
Totalizers & Batch Controllers  
pH/CONDUCTIVITY  
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pH Electrodes, Testers & Accessories  
Benchtop/Laboratory Meters  
Controllers, Calibrators, Simulators & Pumps  
Industrial pH & Conductivity Equipment  
DATA ACQUISITION  
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Data Acquisition & Engineering Software  
Communications-Based Acquisition Systems  
Plug-in Cards for Apple, IBM & Compatibles  
Datalogging Systems  
Recorders, Printers & Plotters  
HEATERS  
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Heating Cable  
Cartridge & Strip Heaters  
Immersion & Band Heaters  
Flexible Heaters  
Laboratory Heaters  
ENVIRONMENTAL  
MONITORING AND CONTROL  
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Metering & Control Instrumentation  
Refractometers  
Pumps & Tubing  
Air, Soil & Water Monitors  
Industrial Water & Wastewater Treatment  
pH, Conductivity & Dissolved Oxygen Instruments  
M3808/0504  
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