Fluke 5725A instruction manual Aq59f.eps

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Schematic Diagrams 9

aq59f.eps

5725A-1631

Figure 9-4. A4 Power Supply PCA

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Contents 5725A Limited Warranty and Limitation of Liability Table of Contents 5725A Calibration and Verification Schematic Diagrams List of Tables 5725A List of Figures Viii Interference Information Page Operator Safety Summary Symbols Marked on Equipment Servicing Safety Summary First AID for Electric Shock Introduction and Specifications 5725A Introduction Where to Go From Here Getting Started Manual How to Use the ManualsA/5720A Series II Operator Reference Guide A/5720A Series II Remote Programming Reference Guide Specifications5720A 99% DC Voltage Specifications99 % Confidence Level Range Resolution95 % Confidence Level Overshoot 5 % Common mode rejection 140 dB, DC to 400 Hz A Series II AC Voltage Specifications 99 % Confidence Level AC Voltage SpecificationsRange Resolution Frequency Absolute Uncertainty A Series II AC Voltage Specifications 95 % Confidence LevelRelative Uncertainty ± 1 C Hours Days ± ppm output + μVFrequency Absolute Uncertainty 99 % Conf idence LevelHours Days Year ± ppm output + μV Relative Uncertainty ± 1 C Hours95% Confidence Level Stability ± 1 C Note Hours Range Frequency±ppm output/C ±% outputStability ±1 C Note Hours ±ppm output + mV Temperature Coefficient Adder 10-40 C 10 C99% Confidence Level Resistance SpecificationsNominal Absolute Uncertainty of Characterized Value Hours Days Year Relative Uncertainty ±1 CResistance Specifications Nominal Value Two-Wire AdderStability Maximum Peak CurrentFour-Wire Two-Wire Comp12. Current Derating Factors Value of Derating Factor K for Over or Under CurrentRelative Uncertainty ±1 C DC Current SpecificationsHours Days ± ppm output + nA ± ppm output + μA Days ± ppm output + nA ± ppm output + μA Overshoot 5 % Absolute Uncertainty Relative Uncertainty Resolution AC Current SpecificationsHours Days ± ppm output + nA Year Relative Uncertainty ±1 C Hours Days ± ppm output + nA Year 22 mA 10 nA 100 nA 650 350 120 1k 5 k 500 05k 10 k 1500 Relative Uncertainty ±1 C Hours Days Year ± ppm output + nA 10-40 C 40-50 C ± ppm output + nA/C Stability ±1 C NoteFor Full Accuracy Bandwidth 10 Hz-50 kHz 0.5V Burden ± % output + μA21. Wideband AC Voltage Option 5700-03 Specifications Wideband AC Voltage Option 5700-03 SpecificationsGuard isolation 20 General SpecificationsSize Frequency Auxiliary Amplifier SpecificationsDay Accuracy at 23 ±5 C ± % output + % range AccuracyInstallation 5725A Standard Equipment Unpacking and InspectionModel or Part Number Line Power Cords Available for Fluke Instruments Line Power Cord Types Available from FlukePlacement and Rack Mounting Service InformationCooling Considerations 5700A Connecting to the 5700A Calibrator5700A 5725A 100V 110V F8A 115V Selecting Line Voltage120V S2 S3 S4 200V 220V 230V F4A Accessing the Fuse Accessing the FuseConnecting to Line Power 5725A Operating Notes 5725A Operating Notes Front Panel Features Front Panel Features5725A Standby Indicator Front Panel Features Current Output Binding PostsCurrent Mode Indicator Voltage Mode IndicatorRear Panel Features Rear Panel FeaturesCalibration Switch Rear Panel Features Current Output Binding Posts5700A Calibrator Connector Line Voltage Selection SwitchesWarm Up Turning on the 5725A AmplifierStandby Operating Functions and ModesVoltage Standby Voltage Standby ModeCurrent Standby Current Standby ModeVoltage Operate Voltage Operate ModeCurrent Operate Current Operate ModeConditions That Activate the 5725A Theory of Operation High Voltage Heat Sink Assemblies Overall Functional Description A Overall Block Diagram AC Range Functional Description Range Functional Description Operation in the 11A AC Range Operation in the 11A DC RangeVoltage and Current Standby Modes Voltage StandbyDescription of the Out-Guard Lines 5725A Side How the 5700A and 5725A Communicate∙ B-RCL Description of the In-Guard Lines∙ B-FEEDBACK Functional Summaries by AssemblyDetailed Circuit Description Interconnect Assembly A1Power Supply Assembly A4 Internal Fuse Data High Voltage Supply SectionSwitching Section System Supply Section Current-Limit SectionFan Supply Section Digital Assembly A5Microcomputer External RAMDigital Assembly Block Diagram Data Latch EeromStrobe Lines Led DriverWatchdog Timer Power Up and Reset CircuitryCurrent Amplifier Assembly A2 Break-Detect CircuitryCurrent Amplifier Assembly Block Diagram Error Amplifier Section Monitor Section Output Stage SectionPower Supply Section Control and Switching SectionInput Amplifier High Voltage Amplifier A3High Voltage Amplifier Assembly Block Diagram Window Comparator IntegratorInput Clamp Midstage Transconductance and Cascode StageMidstage -400V Filter High Voltage Heat Sink AssembliesAutobias Sense Circuit Autobias Current SourceTemperature Monitoring Signal TransformersSignal Transformer Usage High Voltage Amplifier FeedbackHigh Voltage Sense Assembly A6 High Voltage Sense Assembly Block Diagram Sense Amplifier Section High-Quality Reference Name Destination Destination AssemblyAnalog Monitor Section Signals Monitored by the Analog Monitor SectionSerial Interface/Guard Crossing Section Analog Input Switching SectionControl Section AC Line Voltage Selection Section 5725A Calibration and Verification 5725A Where to Find Further Information 5725A Static awareness Dow Chemical Maintenance 5725A Replacing the Fuse Cleaning the Air Filter Cleaning PCA’s General CleaningAssembly Location Diagram Access ProceduresInitial Access Procedure TP304 TP301 TP307CR317 CR318Accessing the Digital Assembly A5 Accessing the Power Supply Assembly A4When Reinstalling Digital Assembly Accessing the Current Amplifier Assembly A2 Correct Way to Dress Cables Accessing the High Voltage Amplifier A3Accessing the High Voltage Sense Assembly A6 Accessing the Interconnect Assembly A1 Accessing the High Voltage Output TransistorsEnabling Front or Rear Binding Posts Enabling Front or Rear Binding Posts Troubleshooting 5725A Self Diagnostics Fault CodesFault Message Explanation A Fault CodesSelf Diagnostics Manual Tests for Fault Isolation Fault no Message Analog Monitor FaultsProblem 3 Fault When Entering Voltage Operate Reduced-Voltage Troubleshooting ModeProblem 4 Fault When Entering Current Standby Problem 5 Fault When Entering Current OperateTesting the Power Supply By Itself 5725A List of Replaceable Parts 5725A Introduction Final Assembly Manual Status Information Assembly Name Fluke Part NoRef or Option No Revision LevelList of Replaceable Parts Parts Lists TM1 Aq24f.tif Aq25f.tif Aq26f.tif Aq27f.tif Aq28f.tif Aq29f.tif Aq30f.tif Aq31f.tif A1 Interconnect PCA 5725A-1611 A2 Current Amplifier PCA Reference Description Designator Fluke Stock Tot Qty ZENER,UNCOMP,6.8V,5%,20.0MA,0 5725A-1650 A3 High Voltage Amplifier PCA Reference Description Designator Fluke Stock Tot Qty List of Replaceable Parts Parts Lists 5725A-1661 Description Fluke Stock A4 Power Supply PCADesignator Reference DescriptionHARNESS, High Voltage Supply 5725A-1631 Reference A5 Digital PCADescription Fluke Stock Tot Qty Designator 5725A-1650 A6 High Voltage Sense PCA Reference Description Designator Fluke Stock Tot Qty ZENER,UNCOMP,3.3V,5%,20.0MA,0 ZENER,UNCOMP,5.1V,5%,20.0MA,0 5725A-1601 A12 Transformer Enclosure Assembly Aq32f.tif Aq33f.tif Aq34f.tif Aq35f.tif A30 Inductor PCA 10. A30 Inductor PCASchematic Diagrams 5725A 5725A-1611 5725A Schematic Diagrams 5725A-1650 Schematic Diagrams 5725A Schematic Diagrams 5725A-1661 Schematic Diagrams 5725A Aq59f.eps 5725A Schematic Diagrams 10 ms AT Pins 12 and 13 of U507 5725A-1650Schematic Diagrams 5725A-1601 Schematic Diagrams 5725A Schematic Diagrams 5725A Aq45f.eps 5725A Index 5725A STANDBY, 3-5CABLE OFF, 3-5CURRENT MODE, 3-5FAULT Chassis GROUND, 3-7CURRENT OUTPUT, 3-5,3-7HI, 3-5,3-7 5725A
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5725A specifications

The Fluke 5725A is a high-performance, multifunctional temperature calibration source designed to meet the demanding requirements of laboratory and industrial environments. Renowned for its accuracy, reliability, and versatility, the 5725A serves as a powerful tool for engineers and technicians engaged in temperature calibration processes.

At the core of the 5725A is its advanced measurement technology, which allows for precision temperature calibrations across a wide range. With an operating temperature range from -200°C to 660°C, it caters to various applications, making it suitable for calibrating thermocouples, resistance temperature detectors (RTDs), and other temperature measurement devices.

One of the standout features of the Fluke 5725A is its outstanding accuracy, boasting a specified uncertainty of just ±0.15°C. This level of precision ensures that users can maintain compliance with regulatory standards and regulatory requirements in fields such as aerospace, pharmaceuticals, and manufacturing.

The Fluke 5725A is equipped with dual-channel capabilities, allowing users to calibrate two devices simultaneously. This enhances productivity by minimizing downtime and optimizing workflow efficiency. The intuitive touchscreen interface simplifies operations, enabling users to view measurements, set up test parameters, and access historical data with ease.

Versatile connectivity options such as USB and Ethernet enable seamless integration into existing systems and allow for data transfer, remote control, and configuration. This feature empowers technicians to conduct calibrations efficiently, whether on-site or remotely.

The robust design of the Fluke 5725A ensures its durability in demanding environments. Built with high-quality materials, it is resistant to shocks and vibrations, making it suitable for use in manufacturing plants and laboratories where equipment may be subjected to harsh conditions.

Another notable characteristic of the 5725A is its ability to generate stable temperature outputs with minimal drift, contributing to consistency in calibration results. Its built-in self-test functionality helps ensure that the unit remains in peak operating condition, giving users confidence in their calibration processes.

In summary, the Fluke 5725A is a top-tier temperature calibration source that excels in accuracy, reliability, and user-friendliness. Whether in laboratory settings or industrial applications, its advanced technologies and features make it an essential tool for professionals tasked with maintaining precision in temperature measurements.
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