GE K400 user manual Important Note, Calibration of the standard Reference Probe Input

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5 CALIBRATION

The DBC series of temperature calibrators must be considered as reference standard: these instruments must be periodically tested and calibrated with a recommended recalibration period of 12 months. The Service Centres of GE provide a global calibration service to National and International standards.

Calibration must be carried out by the suitably qualified calibration technicians. The calibration procedure requires a high-accuracy reference standard (at least 5 times better than the DBC accuracy) with direct traceability to National or International Standard (SIT, UKAS etc.).

Press the # and the menu keys to select the set-up display.

SYSTEM SETUP

CALIBRATION

ENTER CODE

ENTER CODE

Use the keys to select CALIBRATION and press ent.

Important Note

A PIN code protects the calibration facility from unauthorised use. Each instrument, on delivery, contains the factory set PIN (4321). To continue protecting the calibration facility, the PIN code should be changed as soon as possible.

Enter the correct PIN at the ENTER CODE prompt and press ent. After entering the PIN number, calibrate the instrument by following the on-screen instructions.

CALIBRATION

REF. RTD INPUT

REF. RTD

BLOCK CALIBRATION

mV (1)

mV (2)

•Calibration of the standard Reference Probe Input

In the calibration menu, using the cursor keys select the REF. RTD INPUT and press ent. The display enables the setting of the resistance test value (true value).

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K400 Issue No. 1

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Page 57 Page 59
Contents Druck DBC 150/650 Series General Electric Company. All rights reserved Maintenance SafetyPower isolation Technical AdviceSymbols Traceability and Calibration ReportSafety Instructions AbbreviationsTable of Contents CAL Electrical Input Specification DBC-TC models Standard Accessories DBC-TC series Optional Accessories DBC-TC seriesStandard Accessories DBC-TS series Optional Accessories DBC-TS seriesTC Temperature Calibrator TS Temperature SourceIntroduction Automatic Calibration Parts IdentificationDBC-TS Power Supply InstallationTemperature Probes Important Note Use of screw connections for T/C wires Electrical Connections Connection of a Thermocouple sensorConnection of a 3-wire RTD Connection of a 4-wire RTDOperating procedure GeneralCalibration with external reference probe External probe connections OPERATI0N Numeric keys +/- keyKey Arrow keysSystem Set-up Screen Menu selection screenWorking screen Help/Info screen Self-test screenFunction Modes Reading of the generated temperature Dual display generated temperature and an input test optionInternal reference probe Temperature Reference SelectionExternal reference probe SEL RTD System Set-up Language setting Temperature unit settingDigital interface settings Key-padaudio signalPrinter settings CalibrationProtection code Testing Modes Direct mode 150.00 CStep mode Fixed step selection19.00 C Ramp mode 50.00 CPreset values mode Switch Test Measuring an InputThermocouple Testing 148.00 CSetting Cold Junction Compensation InternalCAL Mode DirectAbsolute SpanReading 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 DBC Series Serial Commands Protocol Serial CommunicationTS/ 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 Volt input range DBC-TC only Calibration of the mA input range DBC-TC onlyCalibration of the resistance Ohm input ranges DBC-TC only Fault Finding Maintenance Cleaning InstructionsStandard Specification Technical SpecificationCommon specification Electrical Input Specifications DBC-TC models Input Range Resolution Accuracy Days Year

K400 specifications

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