Advantech 4718 Current Input Calibration, Figure D.6 Select the current input range setting

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D.2 Current Input Calibration

You need to calibrate only one channel (AI0). The other channels of USB-4718 will be calibrated automatically.

NOTE: Please make sure that the JP1 on USB-4718 is set to current input mode before you start voltage input calibrating.

Step 1: Please follow the procedures of voltage input calibration but select the current input range setting in Calibration Wizard.

Figure D.6: Select the current input range setting

Step 2: Please perform the zero range calibration (connect to a 0mA current source) and the full range calibration (connect to a 20mA cur- rent source) as well.

USB-4718 User’s Manual

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Contents USB-4718 Channel Thermocouple Input ModuleCopyright Acknowledgements Product Warranty 2 years Safety Precaution Static Electricity Technical Support and AssistanceDocument Feedback Contents Appendix Function Block Appendix C Firmware Download Utility Introduction Features ApplicationsInstallation Guide Installation Flow Chart Software Overview Programming Choices for DA&C ModuleDevice Drivers Device Driver Programming Roadmap Programming Tools\Program Files\Advantech\ADSAPI\Examples Troubleshooting Device Drivers Error Programming with Device Drivers Function LibraryPage Installation Unpacking After taking out the module, you should firstDriver Installation CD-ROMHardware Installation Driver InstallationDevice Manager Screen Device Setup & Configuration USB-4718 Device SpeedSetting Up the Device Configuring the DeviceDevice Setting Dialog Box Gain Code Setting Device Testing Testing Analog Input FunctionTesting Analog Output Function Analog Input Tab/Device Test DialogTesting Digital Input Function Testing Digital Output FunctionRed lamp High Green lamp Low Hardware Uninstallation Testing Counter Function11 Unplug or Eject Hardware Dialog Signal Connections I/O Connectors OverviewPin Assignment I/O Connector Pin Assignment 2 I/O Connector Signal Description LED Indicator Status Description4 3.2.4 Jumper Setting Description JP1~JP8 Input Mode Setting for Analog Input ChannelsJP13 Watchdog Timer Setting How to Reset USB-4718 ManuallyAnalog Input Connections Isolated Digital Input ConnectionsIsolated Digital Output Connections Digital Input Channel ConnectionsField Wiring Considerations Isolated Digital Input Channel ConnectionsPage Specifications Analog Input Accuracy for ThermocoupleIsolated Digital Input Isolated Digital OutputGeneral Table A.5 GeneralFunction Block Appendix B Function Block Firmware Download Utility Appendix C Firmware Download Utility Figure C.2 USB Download Utility Figure C.4 Firmware Download Completed Analog Input Calibration Appendix D Analog Input Calibration Voltage Input CalibrationFigure D.1 USB-4718 Device Setting window Figure D.2 USB-4718 Calibration Wizard Figure D.4 Full range calibration Figure D.6 Select the current input range setting Current Input Calibration