Calibration Types, 119 | Agilent Technologies E4374A, E4370A

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Calibration

Calibration Types

There are three types of calibration available for the Agilent E4370A/E4374A MCCD.

♦Full calibration, which calibrates the Agilent E4370A MCCD mainframe and all installed Agilent E4374A Charger/Discharger cards.

♦Transfer calibration, which calibrates only the Agilent E4374A Charger/Discharger cards that are installed in the mainframe.

♦Mainframe reference calibration, which calibrates only the Agilent E4370A MCCD mainframe.

Full calibration actually consists of mainframe reference calibration, which uses an external voltmeter to calibrate the internal reference voltages in the Agilent MCCD mainframe, followed by a transfer calibration, which uses the calibrated internal reference in the mainframe to calibrate all of the channels on the Agilent E4374A Charger/Discharger Cards. The entire process takes about fifteen minutes for 256 channels.

CAUTION: Make sure that no cells are connected when performing a Full Calibration or a Transfer calibration.

Calibration Interval:

Full calibration of each Agilent E4370A/E4374A MCCD should be performed at 12 month intervals.

Transfer calibration must be performed whenever you install a new or a repaired charger/discharger card in the mainframe.

Full Calibration

Calibration is accomplished by connecting a DMM to the rear calibration terminals of the power mainframe. A 24 volt dc source must be connected to the power bus. The internal references are then calibrated using a built-in program. This program will directly control the system voltmeter connected to the Port B RS-232 interface, and supports Agilent 3458A command sets. The calibrated reference voltages are then used to calibrate all charger/discharger cards through internal multiplexing circuitry using the transfer calibration process. You can execute a full calibration whenever the Agilent MCCD is in CF_IDLE state. See table B-1 for the equipment list.

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Agilent Technologies E4374A, E4370A, E4371A manual Calibration Types, Full Calibration, Calibration Interval, 119

Contents

Multi-Cell Charger/Discharger USER’S Guide Certification Warranty Information General Safety Summary Document Scope Safety Symbols Table of Contents Configuration Page Program Examples Agilent Mccd System Capabilities General Information Agilent E4370A/E4374A Mccd Additional FeaturesHardware Description Basic Functions Line System Agilent E4370A/E4374A Mccd Rear Panel Connections Agilent E4371A Powerbus Load Agilent E4371A Powerbus Load Front Panel External Power Source Maximum System Block Diagram Multiple Agilent Mccd Configuration Current Measurements Measurement CapabilityVoltage Measurements Cell Resistance Capacity Measurements Probe Resistance Data Logging Internal Protection Functions Protection Features External Digital I/O Protection Functions If AC Power FailsRemote Programming Interface Application Programming Interface API Web Accessible Agilent Mccd User InterfaceExample of a Cell Forming Process General Information Page Inspection InstallationParts and Accessories Accessories Manufacturer’s Addresses Manufacturer’s Part Description Number Agilent E4370A Mccd Mainframe LocationChannel Connections Connector Number Voltage Drops and Wire ResistanceChannel Configuration Card Number Resistance of Stranded Copper Conductors Remote Sense Connections Bus bars Power Bus ConnectionsPower Bus Wiring Information Discrete terminated wires Ampacity and Resistance of Stranded Copper Conductors Typical Power Bus Configurations Discharging Mode Guidelines Charging Mode Guidelines General Purpose I/O Digital Connections Special Functions Wiring Guidelines Equivalent Digital I/O Circuits Calibration ConfigurationRS-232 Connections Initial Auxiliary Output Connection RS-232 a and B Connectors Visual C++ Configuration Installing the API Library and Measurement Log Utility Configure the HyperTerminal program ConfigurationConfiguring the LAN Connect the Agilent E4370A Mccd to the COM port on the PC Fill Out the Agilent Mccd Configuration Screens Network Configuration Identification Configuration Miscellaneous Configuration Configuring the Digital I/O Digital I/O Configuration Pin Function General Purpose I/O Pin Digital I/O Configuration Change to External Fault Input Mixed Configuration Example Accessing Calibration PC Requirements Browser SettingsAgilent Mccd User Interface Description Localization Using the InterfaceAccess Using the Agilent Mccd Measurement Log Utility Through Cell Forming Overview Programming Overview Cell Forming Example Test Outcome Flowchart Step Simple Cell Forming Example Cell Grouping Function Call Overview Step/Test Functions Grouping Functions Instrument Run State Sequence Control Output Configuration Instrument Protect States Instrument Protection Instrument State Storage Power Fail Operation Status Power-on and cfReset instrument settings are Measurement Log Output Measurements Time Stamp Function General Server functions Direct output control Calibration Selftest Digital port Serial port Probe check Page API Usage Guidelines Language Dictionary API Function Summary Password Protection CfMeasDCResistance CfCalStandard API Function DefinitionsCfAbort CfCal CfDeleteGroup CfCalTransferCfClose CfGetCurrent CfGetCellStatusCfGetCellStatusString CfGetGroups CfGetDigitalConfigCfGetDigitalPort CfGetInstStatus CfGetInstIdentify CfGetOutputProbeTest CfGetMeasLogIntervalCfGetOutputConfig CfGetSense CfGetOutputStateCfGetRunState CfGetSeqTest CfGetSenseProbeTestCfGetSeqStep CfGetSerialStatus CfGetSerialConfigCfGetSeqTestAnd CfGetSeqTime CfGetTrigSource CfGetShutdownDelayCfGetShutdownMode CfGetStepNumber CfMeasCapacityAS CfGetVoltageCfInitiate CfMeasACResistance CfMeasOutputProbeResistance CfMeasCapacityWSCfMeasCurrent CfMeasDCResistance CfMeasSenseProbeResistance CfMeasProbeContinuity CfOpenGroup CfMeasVoltageCfOpen CfReadMeasLog CfProtectCfProtectClear Step number Status CfReadSerial CfReadTestLog CfResetCfResetSeq CfSelftest CfSaveOutputConfigCfRestart CfSetCurrent CfSetAutoConnect Cfgrounded Operation CfSetDigitalConfig Cfisolated Operation CfSetDigitalPort CfSetErrorFunction CfSetGroup CfSetMeasLogIntervalCfSetOutputConfig CfSetOutputState CfSetOutputProbeTest CfSetSeqStep CfSetSenseCfSetSenseProbeTest CfReset, cfSetSeqTest, cfGetSeqStep Meastesttype is one CfSetSeqTest Timetesttype is one CfSetSeqTestAnd CfSetSerialConfigCfSetServerTimeout CfSetTrigSource CfSetShutdownDelayCfSetTimeout CfSetShutdownMode 101 CfSetVoltageCfShutdown CfStateDelete CfTrigger CfStateListCfStateRecall CfStateSave 103 CfWriteSerialPage 105 Program ExamplesExample 106 Program Examples Digtestlight 107 108 Cffail 109 110 111 Threadinfo 112 113 114 115 SpecificationsHardware Specifications Table A-1. Agilent E4370A/E4374A Mccd Specifications 116 Table A-2. Agilent E4370A/E4374A Mccd Characteristics 117 Table A-3. Agilent E4371A Powerbus Load CharacteristicsTable A-4. Requirements for External Power Bus Source Page Calibration Interval CalibrationCalibration Types Full Calibration Table B-1. Calibration Equipment Required Transfer CalibrationMainframe Reference Calibration Calibration Connections Figure B-1. Calibration Connections 121 122 Agilent Mccd Configuration Screens Web-based Graphical User Interface Calibration Error MessagesRear panel transfer calibration switch API Calls over the LANPage 125 Dimension Drawings 126 Dimension Drawings 127 Sense and Power Connector PinoutsCard Number Sense and Power Connector Pinouts Sense and Power Connector Pinouts D 130 Table D-1. Card 1 Sense and Power Pinout Assignments 131 Table D-2. Card 2 Sense and Power Pinout Assignments 132 Table D-3. Card 3 Sense and Power Pinout Assignments 133 Table D-4. Card 4 Sense and Power Pinout AssignmentsPage 135 Table E-1. Fault IndicatorsCase of Trouble Introduction 136 Selftest Error Messages 137 Index 138 Index 139 140 141 Agilent Sales and Support Office