Omega Vehicle Security OM51 User's Manual
Contents
1. magnet You must orient the magnet to the case correctly for the OM 51 State data logger to detect it When the OM 51 State sees the magnet it will blink its green LED light When it cannot see the magnet it will blink its red LED o light The recommended orientation Diagram A along with some that will not work Diagram B are shown in Diagram A the drawings at the right Diagram B A simple application door monitor Mount the magnet on the door using its two sided foam tape Use the Window s software to launch the logger then mount the OM 51 State data logger on the door jam using the hook and loop strip The magnet will need T to be less than 1 4 inch from the logger case when the door is closed and over 3 4 inch away when the door is open Make sure that the logger blinks green when the door is closed and red after it has been opened The logger will record the times when the door is either closed or opened The hook and loop tape allows you to conveniently remove and replace the logger for readout S A door in a house with small children living in it recorded over one thousand state changes during a one week period in the summer 2 Measuring contact closures The OM 51 State can be used to measure contact closures Connect the contacts to the black and white wires on the contact closure cable The polarity of this connection does not matter The2. of state occurs Inside this package OM 51 is shipped with 1 OM 51 State data logger 2 Contact closure cable 3 Magnet 4 Mounting Accessories Magnet Hook and loop tape Double sided tape 5 This User s Manual Mounting options Included with your OM 51 data logger are three options for mounting it on location a magnet hook and loop tape and double sided tape These can be stuck on the back of your data logger When using the magnet note that it works best on flat surfaces OM 51 State data loggers in detail OM 51 State data loggers work well when there are only two values to measure i e open or closed on or off The OM 51 State data logger records the time at which a state change occurs with a resolution of half a second and records nothing between these changes If you wanted to do this with a logger that uses preset intervals you would have to set it to 1 2 second intervals and an 8K logger would run out of memory in about an hour The OM 51 State data logger checks for the contact closure every half of a second and can record 2000 state changes Its time out in the field is limited by the battery about one year No data is information too The OM 51 State logger records the initial state and a final state at readout even if the state has not changed This allows you to determine the entire period during which the OM 51 State was watching for state changes Application Notes 1 Using the
3. G 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 D 5385 B M3615 1100 CE E bor s Guide Shop online at www omega com e mail info omega com OM 51 State Data logger The OM 51 State data logger requires Logger Software for Windows and PC interface cable for operation Introduction Thank you for buying the OM 51 State data logger With proper care it will give you years of reliable readings The OM 51 State data logger has two inputs a magnet ic reed switch located in the middle of the hinge of the case opposite the connectors and an external contact closure input The logger will indicate a closed state if either a magnet is present or the external contact is closed A different kind of logger Other loggers record measurements with their sensors at regular preset intervals These loggers record the time evolution of a physical property temperature RH etc Usually the physical property has a long time constant associated with it water and air temperatures usually change slowly so measuring at an interval that is shorter than this time constant will give a realistic representation of what has happened The OM 51 State does not have a preset inter val It will always be monitoring and will only record when a change
4. 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 nor mal 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 OM EGA 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 vibration 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 omission
5. e weight 2 375 x 1 875 x 0 75 approximately 1 oz D ature CO Battery CR 2032 lithium provides one year of continuous use Storage temperature 40 C to 75 C 40 F to 167 F Connecting the communications cable The OM 51 State data logger requires Logger Software and a PC interface cable Connect the cable into the 3 5 mm jack on the logger See diagram D and into a working serial port of your computer If the serial port was recently used for a network modem or printer the port may still be configured as such and the computer should be restarted first When attaching the PC interface cable to your logger make sure that the interface cable is inserted completely into the jack on the logger Internal magnetic reed switch external contact opening The OM 51 State data logger records contact closures openings of its internal magnetic reed switch a glass reed switch located inside the box on the edge opposite the connectors see Diagram E and contact closures open shorted in a cable connected to its 2 5 mm jack Diagram D The OM 51 State data logger detects the cable s open shorted condition by applying a positive voltage pulse to the tip white wire in cable The black wire is ground and the red wire is not connected Pairs of state changes that occur in less than half a second may not be recorded Plot Tinebase dependence an a 100 time base error ppm ta ae Operatio
6. n indication sana Battery The OM 51 State data logger has two LED lights red and green jack Diagram D One of these LEDs will blink every two seconds if the green G contact is open the red LED will blink if the contact is closed the rad green LED will blink Although the LEDs blink every other second a V the state is checked every half second with state changes recorded ac HU as detected If the battery voltage is low both LEDs will blink every Diagram D pMagnetio other second regardless of the state e tee Changing the battery Piagron ES diagram To change the battery open the case as shown in Diagram E Lift the circuit board and remove the battery by carefully pushing it out with a cotton swab with the tip removed or other small blunt instrument Be sure to install the battery with the printed side away from the OM 51 s cir cuit board Diagram F The logger s green LED will blink several times after the battery has been installed Keep it dry Your OM 51 State data logger can be permanently damaged by corrosion if it gets wet Protect it from rain or condensation Should it get wet remove the battery immediately and dry the board completely with a hair dryer before reinstalling the battery Data Format The OM 51 State records the exact moment of each change of state Current versions of the Windows software allow you to display this data in graphical or tabular format
7. r 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 FOR NON WARRANTY REPAIRS consult OMEGA following information available BEFORE contacting for current repair charges Have the following MEGA information available BEFORE contacting OMEGA 1 Purchase Order number under which the 1 Purchase Order number to cover the COST product was PURCHASED of the repair 2 Model and serial number of the product under 2 Model and serial number of the product and warranty and 3 Repair instructions and or specific problems 3 Repair instructions and or specific problems relative to the product 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 2001 OMEGA ENGINEERIN
8. red wire is not connected on the OM 51 State data logger Using the external contact closure input allows the logger to be mounted remotely from the contact Make sure that no external voltage is applied to the contacts When measuring contact closures the contacts should not be connected to anything else even ground 3 Measuring the presence of positive DC voltages Put a diode in series with the white wire on the external contact closure cable The diode will block the positive input Note it is critical that you connect the diode with the polarity shown in Diagram C This will only work if the input voltage is ground when the positive voltage is not applied Never apply a negative voltage to this input as the diode will not block it Make sure you use a diode that has a breakdown voltage high enough to block the positive voltage you intend to apply In no case should you use this technique to connect the logger to any AC voltage or a DC voltage above 15 volts white diode E voltage contact closure cable p black to OM 51 State F ground Diagram C Detailed Specifications Minimum state duration 1 2 second Time Accuracy 100 ppm at 20 C full dependence shown in Plot A Capacity 2 000 state changes External contact input relay switch or contact closure Length of included external contact cable 6 Operating temperature 20 C to 70 C 4 F to 158 F 150 Relative humidity range 0 to 95 non condensing 200 Siz
9. s 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 o
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