Internal, Setting Cold Junction Compensation

After the SET MODE selection, a new display allows the T/C type definition.

TYPE

Using the keys, select the type of probe to be measured and press ent : the next display sets the compensation method for the T/C cold junction.

COLD J.

INTERNAL

SET CJC

• Internal

This selection activates the internal CJ compensation mode. A temperature sensor fitted near the T/C electrical connection measures the CJ temperature and activates the compensation circuit.

• Setting Cold Junction Compensation

This sets the CJ compensation temperature reference to a programmable value between 0 to 70° C. The T/C reference table uses a CJ temperature of 0° C.

SET CJC

CJC °C: 24.2 °C

Using the keys, select the required CJ compensation method and press ent. The display shows the mode settings (i.e. how the T/C measurement can be displayed).

K400 Issue No. 1

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GE K400 user manual Internal, Setting Cold Junction Compensation

K400 specifications

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Contents

Druck DBC 150/650 Series General Electric Company. All rights reserved Technical Advice SafetyPower isolation Maintenance Traceability and Calibration Report Symbols Abbreviations Safety Instructions Table of Contents CAL Electrical Input Specification DBC-TC models Optional Accessories DBC-TC series Standard Accessories DBC-TC series Optional Accessories DBC-TS series Standard Accessories DBC-TS series TS Temperature Source TC Temperature CalibratorIntroduction Parts Identification Automatic Calibration DBC-TS Installation Power SupplyTemperature Probes Important Note Electrical Connections Connection of a Thermocouple sensor Use of screw connections for T/C wires Connection of a 4-wire RTD Connection of a 3-wire RTD General Operating procedure Calibration with external reference probe External probe connections OPERATI0N Arrow keys +/- keyKey Numeric keys Menu selection screen System Set-up ScreenWorking screen Self-test screen Help/Info screen Dual display generated temperature and an input test option Function Modes Reading of the generated temperature Temperature Reference Selection Internal reference probeExternal reference probe SEL RTD Temperature unit setting System Set-up Language setting Key-padaudio signal Digital interface settings Calibration Printer settings Protection code 150.00 C Testing Modes Direct mode Fixed step selection Step mode 19.00 C 50.00 C Ramp mode Preset values mode Measuring an Input Switch Test 148.00 C Thermocouple Testing Internal Setting Cold Junction Compensation Direct CAL Mode Span Absolute Reading 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 Protocol TS/ TC Read AaOM 1? Preset mode French German Italian Portuguese Spanish Write Par = floating point Calibration Important NoteCalibration 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 only Calibration of the resistance Ohm input ranges DBC-TC only Fault Finding Cleaning Instructions Maintenance Technical Specification Standard SpecificationCommon specification Input Range Resolution Accuracy Days Year Electrical Input Specifications DBC-TC models