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Quick Reference Guide Introduction ... 1 Function Summary ... 1 Charging the Battery and Battery Life ... 2 Input and Output Jacks ... 3 Keys ... 4 Using Measure Mode ... 6 Measuring Electrical Parameters ... 6 Measuring Pressure ... 7 Measuring Temperature ... 8 Measurements in Percent of Scale ... 10 Dampening Your Measurements ... 10 Using Source Mode ... 11 Sourcing Eiectricai Parameters ... 11 Generating a Frequency ... 12 Simulating Thermocouples ... 12 Simulating RTDs ... 13 Stepping the Output ... 13 Sourcing Pressure ... 14 Simultaneous Measure/Source Mode ... 16 Calibrating a Process Instrument ... 18 Generating As Found Test Data ... 18 Adjusting the Transmitter ... 21 Generating As Left Test Data ... 21 Memory Operations ... 22 Saving the Measure, Source, or Measure/Source Results ... 22 Review Memory ... 23 Clearing Memory ... 24 Loop Power ... 25 Using Setup Mode ... 26 Using the Battery Save Feature ... 27 Using the Backlight Timeout Feature ... 27 Selecting the Display Language ... 28 Selecting Date Format ... 28

Introduction ... 1-3 Safety Information ... 1-4 Specifications ... 1-5 2 Theory of Operation ... 2-1 Introduction ... 2-3 Input and Output Jacks ... 2-5 Source Mode: Volts, Ohms, RTD, and Frequency ... 2-5 Generating an Accurate DC Voltage Using Pulse Width Modulation ... 2-5 Generating an Accurate Ohms Source Using Pulse Width Modulation ... 2-5 Sourcing RTDs ... 2-6 Sourcing Frequency ... 2-6 Output Amplifier ... 2-6 Sourcing mA, Measuring mA, Ohms and RTD ... 2-6 Sourcing mA ... 2-6 Measuring mA ... 2-7 Loop Power ... 2-8 Measuring Resistance ... 2-8 Simulating a Transmitter ... 2-8 mA Overvoltage Protection ... 2-9 Measuring Volts and Frequency ... 2-9 Measuring DC Volts ... 2-9 Measuring Frequency and AC Voltage ... 2-9 Measuring and Simulating Thermocouples ... 2-9 Analog-to-Digital Converter (A/D) Used for Volt Measure ... 2-10 Pressure ... 2-10 Serial Interface Connector (702 Only) ... 2-10 Power Supply Assembly ... 2-11 Digital Processing ... 2-13 3 Maintenance ... 3-1 Introduction ... 3-3 Performance Verification Test ... 3-3 Equipment Required for Verification ... 3-3 How to Verify ... 3-3 DC Volts Measurement ... 3-4 AC Volts Measurement ... 3-5 DC Current Measurement ... 3-6 Resistance Measurement ... 3-7 Frequency Measurement ... 3-8 DC Volts Source ... 3-9 DC Current Source ... 3-10 Simulate Transmitter Function ... 3-11 Resistance Source ... 3-12 Frequency Source ... 3-13 Thermocouple Measure ... 3-14 Thermocouple Measure, Alternate ... 3-16 Thermocouple Source ... 3-17 Thermocouple Source, Alternate ... 3-17 RTD Measure, Four-Wire ... 3-18 RTD Measure, Three-Wire ... 3-19 RTD Measure, Two-Wire ... 3-20 RTD Source ... 3-21 Loop Power ... 3-21 Calibration ... 3-23 Order in Which to Calibrate ... 3-23 Equipment Required for Calibration ... 3-24 How to Calibrate ... 3-25 Adjustment of Potentiometers ... 3-26 Access Procedures ... 3-27 Required Tools ... 3-31 Opening the Case ... 3-31 Removing the Display Assembly and Lens ... 3-31 Removing the Lithium Battery ... 3-31 Removing the Keyboard Assembly and Keypad ... 3-32 Removing the Main PCA ... 3-32 Removing the Power supply PCA ... 3-32 Removing the Connector Board (I/O PCA) ... 3-32 Reassembly Hints ... 3-33 Troubleshooting ... 3-34 Servicing Surface-Mount Components ... 3-34 4 List of Replaceable Parts ... 4-1 Introduction ... 4-3 How To Obtain Parts ... 4-3 Accessories ... 4-3 Manual Status Information ... 4-3 Newer Instruments ... 4-4 Service Centers ... 4-4 5 Schematic Diagrams ... 5-1 Index

Introduction ... 1 Standard Equipment ... 4 Safety Information ... 10 Getting Acquainted with Your Calibrator ... 12 Input and Output Jacks ... 12 Keys ... 14 Display ... 17 Setting Up the Calibrator ... 17 Using the Strap and Bail ... 17 Charging the Battery ... 20 Battery Life ... 21 Automatically Saving Battery Life ... 23 Using the Optional Battery Eliminator ... 23 Selecting the Display Language ... 24 Adjusting the Display Contrast ... 24 Setting Up the Date and Time Display ... 24 Using the Backlight ... 25 Personalizing the Calibrator ... 26 Using Measure Mode ... 27 Measurement Ranges ... 27 Measuring Electrical Parameters ... 28 Testing Continuity ... 30 Measuring Pressure ... 30 Measuring Temperature ... 33 Using Thermocouples ... 33 Using Resistance-Temperature Detectors (RTDs) ... 36 Measurements in Percent of Scale ... 40 Damping Your Measurements ... 40 Using Source Mode ... 41 Sourcing Electrical Parameters ... 41 Simulating a 4 to 20 mA Transmitter ... 43 Providing Loop Power ... 45 Sourcing Pressure ... 47 Simulating Thermocouples ... 50 Simulating RTDs ... 52 Sourcing in Percent of Scale ... 54 Stepping and Ramping the Output Value ... 54 Stepping the Output ... 54 Ramping the Output ... 55 Simultaneous Measure/Source ... 59 Calibrating a Process Instrument ... 62 Generating “As Found” Test Data ... 62 Adjusting the Transmitter ... 66 “As Left” Test Run ... 67 Memory Operations ... 68 Saving Results ... 68 Reviewing Memory ... 69 Data Logging (Model 702 Only) ... 70 Observing Min and Max Measurements ... 72 Viewing the Task List (Model 702 Only) ... 72 Clearing Memory ... 73 Quick Guide to Applications ... 73 Communicating with a PC (Model 702 Only) ... 83 Maintenance ... 83 Replacing the Battery Pack ... 83 Internal Lithium Backup Battery ... 83 Cleaning the Calibrator ... 83 Calibration Data ... 84 Service Center Calibration or Repair ... 84 Replacement Parts ... 84 Specifications ... 86 DC Voltage Measurement ... 87 AC Voltage Measurement ... 88 DC Current Measurement ... 89 Resistance Measurement ... 89 Continuity Testing ... 90 Frequency Measurement ... 90 DC Voltage Output ... 91 DC Current Output ... 92 Resistance Sourcing ... 93 Frequency Sourcing ... 94 Temperature, Thermocouples ... 95 Temperature, Resistance Temperature Detectors ... 98 Loop Power Supply ... 99 Top and Bottom Limits of Ranges with Auto Range On ... 100 General Specifications ... 102 Index