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Omega DP119-RTD manual Glossary

Models: DP119-RTD

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SECTION 6 GLOSSARY

COMMON MODE REJECTION (CMR) - a measure of the affect of a voltage on the indicated display. It is the ratio of the common mode voltage to the measured voltage due to a common mode voltage.

COMMON MODE VOLTAGE (CMV) - the average of the voltage applied to both wires of a two wire or differential input.

NORMAL MODE REJECTION (NMR) - a measure of the rejection of unwanted signal due to a voltage applied between the wires of a two wire or differential input (shown as normal mode voltage). NMR is the ratio of the normal mode voltage to the measured voltage due to the normal mode voltage.

TEMPCO - abbreviation for temperature coefficient. It is the effect of changes in ambient temperature on a particular parameter, such as zero or span settings.

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Omega DP119-RTD manual Glossary

Contents

Miniature Panel DP119-RTDThermometer UserÕs GuideInternet e-mail info@omega.com OMEGAnetSM On-Line ServiceServicing North America For immediate technical or application assistanceTABLE OF CONTENTS SECTIONPAGE Refer to Table 1-1 for the complete listing of models available Power Options Available MODELPOWER RESOLUTIONMODELS AVAILABLE RTD MODELS AVAILABLERESOLUTION Other Models AvailableMODEL TYPENOTES, WARNINGS and CAUTIONS SECTION 1 INTRODUCTION 1.1 UNPACKING QTY DESCRIPTIONcarton in the event reshipment is necessary 1.2 SAFETY CONSIDERATIONS Unpacking & InspectionEMC Considerations Features SECTION 2 ABOUT THE METER 2.1 Front of the MeterRemovable Screw-Clamp Cable Connector Display Hold Capability Figure 2-1 shows the panel thermometerConnector Description 2.3 Connector DescriptionConnector Signal LoSECTION 3 GETTING STARTED 3.1 Main Board Power Jumpers AC VOLTAGE INSTALLREMOVE Voltage Jumper Pin Settings3.2 Changing the Meter Parameters The following tables summarizes what parameters you can change TABLE 3-2 2-, 3-, 4-Wire, Upscale, Downscale ConfigurationRefer to Table 1-1, for complete models preface section TABLE 3-1 Range ParametersSENSOR BREAK PROTECTION Section 3.3 Installation and Panel Mounting Figure 3-4. Installation Information 3-Wire RTD 2-Wire RTD4-Wire RTD 3.4 Sensor Input ConnectionsNote Refer to Table 3-1 and Table 3-2 for internal jumper settings 3.4 Sensor Input Connections ContinuedWire colors are for OMEGA RTD wiring only Figure 3-6. 2-Wire RTD Wiring3.5 Analog Output Connections 3.6 Display Hold Connections 3.7 Main Power Connections DC WIRING 3.8 Disassembly/Assembly PULL TAB HERE PC BOARD PUSH HERE 4.1 EQUIPMENT REQUIRED SECTION 4 OPERATION AND CALIBRATION4.2 CALIBRATION PROCEDURE Figure 4-1. 2-Wire ConfigurationFigure 4-2. 3-Wire Configuration ADJUST CALIBRATION VALUES WHEN YOU ARE USING RESISTANCE SOURCERESISTANCE METERSECTION 5 SPECIFICATIONS POWER MECHANICAL DIMENSIONSDISPLAY ENVIRONMENTAL1.89 48.0 BEZEL BACKPLATE CASE SIDE VIEW Figure 5-1 Dimensions3.78 96.0 TOP VIEW 0.76 3.76 95.5 4.32 109.7 MAXSECTION 6 GLOSSARY Page RETURN REQUESTS / INQUIRIES USAWARRANTY/DISCLAIMERTEMPERATURE OMEGAÉOf CoursePRESSURE, STRAIN AND FORCE FLOW/LEVEL