GE K400 user manual Measuring an Input, Switch Test

Page 37

3.7Measuring an Input

The DBC series has a dual display. By selecting a measurement (input) option from

the menu using the keys and pressing ent, the working screen shows a dual display with the dry well temperature (at the bottom) and the selected input (at the top).

Note:

Leaving the MEASURE section of the Menu Selection Screen to NONE, the final working screen shows only the dry well temperature (with internal or external reference).

To show the dry well temperature and a thermocouple input (DBC-TC only):

•Select from the menu screen REF .T and then INTERNAL.

•Using the keys, select from the menu screen MEASURE and then T/C.

•Press the ent key, to confirm and set the display.

REF T.

INTERNAL

SEL RTD

MEASURE

NONE

T/C

RTD

mA

T/ C

K

23.8° C

RDG:

148.50

°C

0.15% SPAN

 

150.00

DIRECT

BLK

148.00

 

 

°C

•Switch Test

A switch test can be carried out by connecting the device under test to the electrical

connections on the top side of the instrument (identified with the symbol).

•Select from the menu screen REF .T and then INTERNAL.

•Using the keys, select from the menu screen MEASURE and then .

•Press the ent key, to confirm and set the display.

 

DBC-TC

REF T.

MEASURE

INTERNAL

NONE

SEL RTD

 

 

T/C

 

RTD

 

mA

 

DBC-TS

REF T.

MEASURE

INTERNAL

NONE

SEL RTD

 

K400 Issue No. 1

27

Page 36 Page 38
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Page 36 Page 38
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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