Omega Vehicle Security OM-550 manual Tadjust

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4.13 TADJUST

Tadjust is a cumulative value set during programming and summed with each Temperature channel's data during logging. It is cleared to a value of +00.0 at Manual Reset and on entry to the CAL mode.

Use Tadjust to correct temperature readings for batch variances in thermocouple wire or to align the readings with another measurement device.

Tadjust is programmed differently from other values because its use is different. The Tadjust value is cumulative. When a value of +0.2°C is selected during programming, that amount is added to the present Tadjust value.

For example, if the user wants to read exactly like another instrument, and if Tadjust=- 00.3° and the readings are one-tenth of a degree below the other instrument, then increase Tadjust by +00.1. The final Tadjust value will be -00.2° and the two units will now produce the same readings.

OM-550

u31u

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Contents Table of Contents Date Time Introduction ∙ The OM-550 Datalogger may be referred to as LoggerOperator Safety Information Product Usage WarningsFor protection of the OM-550 itself, observe the following Unpacking Features OM-550 FeaturesOM-550 features Activity LED & Horn Keypad ∙ ON-OFF ∙ RUN ∙ Stop ∙ PROG/EXIT∙ OK Channel Connectors ∙ Optional ConnectorsApplication Printer Window To remove the Viewing WindowBattery Cover Thermal PaperDC Jack Serial Data PortGain Adjust Tilt StandPower Supplies Inputs Voltage Transducer InputsProbes Probe SETThermocouple Inputs TypeProgrammed Features Data CacheStatistics POWER-SAVE Mode LOW Battery OperationBattery Check Power Connection Battery InstallationConnecting the AC Power Adapter Connecting the DC Power CablePaper Installation Data Port Connection PIN AdapterProgramming ∙ Programming outline 1. Select ChannelProgramming Keys Print Formatting PositionTemperature Channels Voltage ChannelsMath PSEUDO-CHANNEL LOG Interval This Interval Overrun can be avoided in two waysNot Printing Operation AT Full Cache Recording Time Temperature Units Rejection FrequencyCalibration Mode To return to Normal modeTadjust Voltage Input Scaling Matching Transducers to the OM-550Matching a Voltage Transducer R1 = 2 R2 = V-2Matching a Current Transducer = 2.0000 VDC = R1R1 = 2 Data Scaling mX + b calculation Matching and Scaling a Voltage Transducer VDC Matching and Scaling a Current Transducer ExampleU38u Unit Labels Operation Programmed InformationLog Interval Time Temperature Units Enter a Tadjust value, or press OK to finish programming U44u Appendix a Calibration ∙ Manual Reset Manual Reset programs the OM-550 as follows∙ Performing a Manual Reset ∙ Calibration Procedure Setup∙ Voltage Adjustment Procedure ∙ Thermocouple Adjustment Procedure∙ Exiting CAL Mode To return to normal operationAppendix B Specifications Voltage Measurement InputsAccuracy Printer Paper LifeDigital Interface RS-232 ConversionPOWER/CURRENT Requirements Battery LifePhysical Dimensions ConnectorsOM-550 DOS Software Table of Contents How to Use This Manual IntroductionFonts Used in this Manual CPU, RAM, Hardware PrinterSoftware Installation ∙ Hard Drive InstallationStarting the Program To start the programMaster Menu Reading Data from the OM-550 Load Existing LOG Files To load a LOG fileModify Software Configuration U6u List Data on Monitor To list dataPrint Data on Printer Save Text FileTo print data To save data as textEdit Plot Labels To edit a plot labelHOT Plot Status BAR Magnify Tool To Magnify a portion of the Data GraphMagnify MAP Magnified Area Axis Labels Channel Data To select a channel to graphTo link plot lines Channels 4 & 5 After Linking Data Graph ∙ Data Plots ∙ X-Data Cursors∙ X-Cursor Data Table Help Menu To activate the Help menuList Existing LOG Files on Printer To list log filesTo quit Appendix a KEY Functions