GE K400 user manual 148.00 C, Thermocouple Testing

Page 38

Selecting the Direct, Step or Preset generation mode, the final working screen shows the dry well temperature at the bottom (together with the temperature set- point, the generation mode and the status arrow symbol) and the contact state at the top (open/close). An audio signal indicates the change of state.

SWITCH
150.00	DIRECT
BLK
148.00	°C

To enable the Switch Test with the indication of open, close and calculated hysteresis values, the Ramp generation mode must first be selected.

SWITCH
OPENED AT:	145.50	°C
CLOSED AT:	148.00	°C
HIST:	2.50	°C
150.00
BLK:	148.00 °C

The switch test function can be rapidly recalled from any working screen by pressing the # and +/- keys. Press these keys again to disable Switch Test and to recall only the dry well temperature measurement.

•Thermocouple Testing

The DBC-TC series can measure the T/C electrical output, directly displaying the value in the selected temperature units.

From the Menu Selection Screen, select the required dry well temperature reference into the REF. T display, move the selection cursor on the MEASURE

section using the keys, select T/C using the keys and press ent.

REF T.

INTERNAL

SEL RTD

MEASURE

NONE

T/C

RTD

mA

28	K400 Issue No. 1

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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 seriesIntroduction TS Temperature SourceTC Temperature Calibrator Automatic Calibration Parts IdentificationDBC-TS Temperature Probes InstallationPower Supply 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 keysWorking screen Menu selection screenSystem Set-up Screen Help/Info screen Self-test screenFunction Modes Reading of the generated temperature Dual display generated temperature and an input test optionExternal reference probe Temperature Reference SelectionInternal 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 Calibration of the standard Reference Probe Input CalibrationImportant Note 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 InstructionsCommon specification Technical SpecificationStandard Specification Electrical Input Specifications DBC-TC models Input Range Resolution Accuracy Days Year