GE K400 user manual Automatic Calibration, Parts Identification

Page 12

reference) and a possible electrical feedback from a device under test (i. e. temperature probes, temperature transmitters). An error calculation, with scaling function, allows the user to check immediately the accuracy specification of the unit under test. A 24 V auxiliary excitation provides power for temperature transmitters under test.

1.1Automatic Calibration

An RS232 computer interface enables a Calibration Management Software to provide automatic calibration procedures, typically with the following capabilities:

•Creation of instrument details

•Creation of test procedures and work orders

•Analysis of devices due for calibration

•Printing of calibration reports

•Export functions

Refer to section 4 SERIAL COMMUNICATION for remote control of this instrument.

1.2Parts Identification

 

Key to Figure 1-1

Fig no.

Description

 

 

1

Dry well with insert

 

 

2

Protection grid

 

 

3

Carrying handle

 

 

4

4 mm socket for T/C, RTD and ohm connection, with CJ compensation

 

 

5

Tactile key-pad for direct selection of all the operating function (ramps, steps, preset

values, switch test, help, set-up) and to set temperature values

 

6

Cooling fan

 

 

7

Support feet (4)

 

 

8

Protection fuse (115 Vac 2x12.5 AT and 230 Vac 2x6.3 AT for DBC 650

(115 Vac 2x1.6 AT and 230 Vac 2x3.15 AT for DBC 150)

 

9

Main power selector 100 - 120 Vac and 220 - 240 Vac, 50/60 Hz

 

 

10

Power supply on/off switch

 

 

11

Main power socket: to connect the standard power cable

 

 

12

RS232 serial communications interface

 

 

13

Cursor (arrow) keys to select operating functions from the main menu and to move the

selection cursor through the menus

 

14

Digital display with Multi-language user interface

 

 

15

Switch test connection, suitable to connect test leads supplied as standard

 

 

16

4 mm socket for voltage and current input with 24V dc auxiliary excitation

 

 

17

Lemo connection for external reference probe: suitable for connecting PT 100 probes

with 3 or 4 wires, supplied with standard mating connector ( B1, B2 and B3 options)

 

2

K400 Issue No. 1

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Page 11 Page 13
Contents Druck DBC 150/650 Series General Electric Company. All rights reserved Safety Power isolationMaintenance 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 seriesTS Temperature Source TC Temperature CalibratorIntroduction Automatic Calibration Parts IdentificationDBC-TS Installation Power SupplyTemperature 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 +/- key KeyNumeric keys Arrow keysMenu selection screen System Set-up ScreenWorking screen Help/Info screen Self-test screenFunction Modes Reading of the generated temperature Dual display generated temperature and an input test optionTemperature Reference Selection Internal reference probeExternal 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 Important NoteCalibration 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 InstructionsTechnical Specification Standard SpecificationCommon specification Electrical Input Specifications DBC-TC models Input Range Resolution Accuracy Days Year

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