GE K400 user manual Calibration of the Volt input range DBC-TC only

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mV (1)

Using a certified and high accuracy millivolt simulator, generate a millivolt signal to the T/C electrical connection on the front panel (nominal value is the recommended value for the calibration): pressing the ent key causes the microprocessor to combine the millivolt values (true value and effective reading).

•Calibration of the Volt input range (DBC-TC only)

From the CALIBRATION display, select V INPUT using the keys and press ent.

V INPUT

Using a certified and high accuracy Volt simulator, apply the calibration signal to the Voltage electrical connection on the front panel of the instrument (the nominal value is the recommended value for the test).

Pressing the ent key causes the microprocessor to combine the voltages indication (True value and Reading).

•Calibration of the mA input range (DBC-TC only)

From the CALIBRATION display, select mA INPUT using the keys and press ent.

mA INPUT

Using a traceable and high accuracy mA simulator, generate a specific current value to the related electrical connection on the front panel of the instrument (the

K400 Issue No. 1

51

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Page 60 Page 62
Contents Druck DBC 150/650 Series General Electric Company. All rights reserved Power isolation SafetyMaintenance Technical AdviceTraceability and Calibration Report SymbolsAbbreviations Safety InstructionsTable of Contents CAL Electrical Input Specification DBC-TC models Optional Accessories DBC-TC series Standard Accessories DBC-TC seriesOptional Accessories DBC-TS series Standard Accessories DBC-TS seriesTC Temperature Calibrator TS Temperature SourceIntroduction Parts Identification Automatic CalibrationDBC-TS Power Supply InstallationTemperature Probes Important Note Electrical Connections Connection of a Thermocouple sensor Use of screw connections for T/C wiresConnection of a 4-wire RTD Connection of a 3-wire RTDGeneral Operating procedureCalibration with external reference probe External probe connections OPERATI0N Key +/- keyNumeric keys Arrow keysSystem Set-up Screen Menu selection screenWorking screen Self-test screen Help/Info screenDual display generated temperature and an input test option Function Modes Reading of the generated temperatureInternal reference probe Temperature Reference SelectionExternal reference probe SEL RTD Temperature unit setting System Set-up Language settingKey-padaudio signal Digital interface settingsCalibration Printer settingsProtection code 150.00 C Testing Modes Direct modeFixed step selection Step mode19.00 C 50.00 C Ramp modePreset values mode Measuring an Input Switch Test148.00 C Thermocouple TestingInternal Setting Cold Junction CompensationDirect CAL ModeSpan AbsoluteReading RTD Measurements Pt-100 Using the keys, select the required method and press ent Reading Current Measurements CAL Voltage Measurements high level CAL Volt Voltage Measurements low level Resistance Measurement Serial Communication DBC Series Serial Commands ProtocolTS/ TC Read AaOM 1? Preset mode French German Italian Portuguese Spanish Write Par = floating point Important Note CalibrationCalibration of the standard Reference Probe Input REF RTD Calibration of the millivolt input ranges DBC-TC only Calibration of the mA input range DBC-TC only Calibration of the Volt input range DBC-TC onlyCalibration of the resistance Ohm input ranges DBC-TC only Fault Finding Cleaning Instructions MaintenanceStandard Specification Technical SpecificationCommon specification Input Range Resolution Accuracy Days Year Electrical Input Specifications DBC-TC models

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