YOKOGAWA 2560A Bedienungsanleitung

User’s

Manual

IM 2560A-71EN 1/9

2nd Edition

2nd Edition : October 2017 (YMI)

Printed in Japan

Model 2560A

Precision DC Calibrator

Simple Adjustment Procedure

Have a qualified engineer perform simple adjustment of the 2560A at a specialized facility with sufficient

precision. The simple adjustment values are retained even when the settings are initialized.

If you need to adjust the 2560A more accurately than that is possible with the simple adjustment feature or if you

want calibration and adjustment to be performed at a YOKOGAWA factory, contact your nearest YOKOGAWA

dealer. If calibration and adjustment are performed at a YOKOGAWA factory, all settings will be initialized to

their factory default values including the simple adjustment values.

WARNING

• Groundtheinstrumentbeforeconnectingtheinstrumenttothetargetdevice.Thepowercord

that comes with the instrument is a three-prong type power cord. Insert the power cord into a

grounded three-prong outlet.

• Besuretoturnofftheoutputbeforeconnectingordisconnectingthetargetdevice.

French

AVERTISSEMENT

• Relierl’instrumentàlaterreavantdelebranchersurl’appareilcible.Lecordond’alimentation

livréavecl’instrumentestdotédetroisbroches.Brancherlecordond’alimentationsurune

prisedecourantàtroisplotsmiseàlaterre.

• Toujoursmettrehorstensionavantdebrancheroudedébrancherl’appareilcible.

In addition to the above items, be sure to observe the warnings and precautions provided in

the“WiringPrecautions”and“ConnectingWires”sectionsinthe2560AUser’sManual,IM

2560A-01EN.

Required Equipment and Components

• Digitalmultimeter(DMM) KeysightTechnologies3458Aorequivalent

• Standard0.1Ωand10Ωresistors YokogawaTest&MeasurementCorporation2792A03and2792A05,or

equivalents

• Standardtemperaturedevice CoperElectronicsZC-114Aorequivalent

• ThermocoupletypeK JISC1602orIEC60584-1compliantproduct

• DCcurrentsensor YokogawaTest&MeasurementCorporationCT200orequivalent

Each piece of equipment and component must be calibrated and with sufficient precision.

Adjustment Conditions

• Ambienttemperature:23°C±2°C,humidity:20%RHto60%RH(nocondensation),warm-uptime:atleast60

minutes

• Permittedsupplyvoltagerange:90VACto132VACand180VACto264VAC,permittedsupplyfrequency

range:48Hzto63Hz

• For100mVandthermocoupleadjustmentrangesofthe2560A,performadjustmentwiththe2560Aoutput

terminaltemperaturebalancedandstable.Duringadjustment,becarefulinkeepingtheoutputterminal

temperature from changing.

• SettheDMM’sintegrationtime(NPLC)to100PLCorlonger.

* NPLC:AnacronymforNumberofPowerLineCycles.Itisawayofexpressingtheintegrationtime.

Wiring

The 2560A and equipment are wired according to each function, namely voltage, current, thermocouple,

resistance,andinternalRJC.

Forthewiringdiagrams,seethewiringexamplesinthelater“Explanation”section.

Afterwiring,operatethe2560Aaccordingtotheprocedureonthenextpage.

2/9 IM 2560A-71EN

Procedure

Initializing the 2560A

Initialize the 2560A settings.

Initializethe2560Aaccordingtotheprocedurein“InitializingtheSettings”inthe2560AUser’sManual,

IM 2560A-01EN.

Switching to Simple Adjustment Mode

Turn the RANGEdialtoselectSETUP.

TheSETUPmenuappears.

RANGE dial

1. Select SETUP.

The SETUP indicator turns on.

Turn a main settingdialtoselectCAL.

“NEXT”appearsonthedeviationdisplay.AllthePRESETindicatorsturnon.

FlipthePRESET switch down.

A password authentication menu appears.

PRESET switch

3. Display the password

authentication menu.

Main setting dials (use any)

2. Select CAL.

PRESET indicators

Turn the deviation dials to set the password to “111”.

FlipthePRESET switch down.

Whenauthenticationissuccessful,the2560Aswitchestosimpleadjustmentmode.AllthePRESETindicatorsturn

off.

Deviation dials

4. Set the password “111”.

PRESET switch

5. When authentication is successful, the

2560A switches to simple adjustment mode.

PRESET indicators

3/9IM 2560A-71EN

Display Example of Simple Adjustment Mode

Simple adjustment

value

Adjustment range Adjustment point

Displays the rated value or

zero when the output is

turned on

Main setting dials 1 to 4 Main setting dial 5 Deviation dials

Output displayDeviation display

Selecting the Adjustment Range and Adjustment Point, Setting the Simple Adjustment Value

Turn main setting dials 1 to 4 to select the adjustment range.

FliptheOUTPUTswitchup.The2560Aoutputturnson.

• TheOFFindicatorturnsoff,andtheONindicatorturnson.

• Theoutputvaluethatcorrespondstothecurrentadjustmentrange,adjustmentpoint,andsimpleadjustmentvalue

istransmittedfromeach2560Aoutputterminaltothemeasuringinstrument(DMM).

Turn main setting dial 5 to select an adjustment point.

• Selectanadjustmentpointthatcorrespondstotheadjustmentrangeselectedinstep6.

• Thecurrentsimpleadjustmentvaluefortheselectedadjustmentrangeandadjustmentpointisshownonthe

deviation display.

• Theratedvalueorzerothatcorrespondstotheselectedadjustmentrangeandadjustmentpointisshownonthe

output display.

• Theoutputvaluethatcorrespondsto(1)theselectedadjustmentrange,(2)theselectedadjustmentpoint,and(3)

the current simple adjustment value for the adjustment range and adjustment point is transmitted from the relevant

2560A output terminals.

Output Terminal Adjustment range Adjustment point

High voltage output

terminals

(OUTPUT2)

1000V

100V

+F,±0,

Lowvoltage-current

output terminals

(OUTPUT1)

10V

1V

100mV

Thermocouple

Resistance +F,±0

100 µA

1 mA

10 mA

100 mA

1 A

+F,±0,

Largecurrentoutput

terminals

(OUTPUT2)

10 A +F,±0,

30A +F,±0

Lowvoltage-current

output terminals

(OUTPUT1)

InternalRJC ±0

While viewing the measured value, turn the deviation dialstosetthe2560A’ssimpleadjustmentvalue.

• Whenyouchangethesimpleadjustmentvalue,allPRESETindicatorsturnon.

• Ifthemeasuringinstrument(DMM)isthe3458A,waitatleast5secondsforadjustmentranges1000V,10A,and

30Aandatleast2secondsforotheradjustmentrangesbeforereadingthemeasuredvalue.

• Fordetailsontheadjustablerangeofeachadjustmentrange,seethelaterexplanation.

10.

To set the simple adjustment values of other adjustment points in the same adjustment range, repeat

steps8and9.

11.

FlipthePRESET switch down. The specified simple adjustment value for each adjustment point is

confirmed.

• Afterallthedisplaysturnoffforafewseconds,theadjustmentrange,adjustmentpoint,simpleadjustmentvalue,

and output value are displayed.

• IfyouchangetheadjustmentrangeorflipthePRESETswitchupbeforeconfirmingthesimpleadjustmentvalue,it

is discarded and not updated.

12.

To set simple adjustment values of other adjustment ranges, repeat steps 6 to 11.

Whenyouchangetheadjustmentrange,the2560Aoutputturnsoff.TheONindicatorwillturnoff,andtheOFF

indicator will turn on.

OUTPUT switch

Example of a rated value display

when the adjustment range is 100 V

and the adjustment point is +F

Output display

4/9 IM 2560A-71EN

Exiting Simple Adjustment Mode

13.

FlipthePRESET switch up twice.

Simpleadjustmentmodeends,andtheSETUPmenureturns.

Explanation

Voltage

Wiring Example

FUNCTION: DCV

DMM

2560A HI

Adjustment

2560A DMM

Adjustment

range Output at Each

Adjustment Point Adjustable Range Range

+F ±0

100mV +100mV 0mV

100mV ±1000ppmoftheadjustmentrange

(equivalentto±0.1mV) 100mV

1V +1V 0V

1V ±1000ppmoftheadjustmentrange

(equivalentto±0.001V) 1V

10V +10V 0V

10V ±1000ppmoftheadjustmentrange

(equivalentto±0.01V) 10V

100V +100V 0V

100V ±1000ppmoftheadjustmentrange

(equivalentto±0.1V) 100V

1000V +1000V 0V

1000V ±1000ppmoftheadjustmentrange

(equivalentto±1V) 1000V

Current (100µ range, 1 mA range, 10 mA range)

Wiring Example

FUNCTION: DCI

DMM

2560A HI

Adjustment

2560A DMM

Adjustment

range Output at Each

Adjustment Point Adjustable Range Range

+F ±0

100 µA +100 µA 0 µA

100 µA ±1000ppmoftheadjustmentrange

(Equivalentto±0.1µA) 100 µA

1 mA +1 mA 0 mA

1 mA ±1000ppmoftheadjustmentrange

(equivalentto±0.001mA) 1 mA

10 mA +10 mA 0 mA

10 mA ±1000ppmoftheadjustmentrange

(equivalentto±0.01mA) 10 mA

 DependingontheDMMcurrentrange,youmaynotbeabletoattainsufficientaccuracy.Ifnecessary,usea

standardresistorandadjustbyusingaDMMvoltagerange,asshowninthenextsection.Useeithermethod

dependingontheaccuraciesoftheavailablerangesontheDMM.

5/9IM 2560A-71EN

Current (100 mA range, 1 A range)

Wiring Example

2560A

2792A05 (when the 2560A is set to 100 mA range)

2792A03 (when the 2560A is set to 1 A range)

DMM

FUNCTION: DCV

RANGE: 1 V (when the 2560A is set to 100 mA range)

RANGE: 100 mV (when the 2560A is set to 1 A range)

Adjustment

2560A Standard

Resistor DMM

Adjustment

range Output at Each

Adjustment Point Adjustable Range (Nominal

resistance) Range

+F ±0

100 mA +100 mA 0 mA

100 mA ±1000ppmoftheadjustmentrange

(equivalentto±0.1mA:(DMMmeasurement/R0))

2792A05

(10Ω) 1V

1 A +1 A 0 A

1 A ±1000ppmoftheadjustmentrange

(equivalentto±1mA:(DMMmeasurement/R0))

2792A03

(0.1Ω) 100mV

R0:2792A03or2792A05resistance(calibrationvalue)

Current (10 A range, 30 A range)

Wiring Example

2560A

Secondary connector

Power supply

−15 V

0 V (common)

+15 V

Direction of current flow

CT200

Load resistor*

Pass the lead wire through as close to the center of the hole as possible.

DMM

FUNCTION: DCI

RANGE: 10 mA (when the 2560A is set to 10 A range)

RANGE: 100 mA (when the 2560A is set to 30 A range)

* Nominal resistance: 20 Ω

Rated power: 1 W

• Passtheleadwirefromthe2560A’slargecurrentoutputterminals(OUTPUT2)throughtheprimary

current hole of the CT200.

• ConnectthesecondarysideoftheCT200totheDMM’scurrentinputterminals.

Adjustment

2560A DMM

Adjustment

range Output at Each

Adjustment Point Adjustable Range Range

+F ±0

10 A +10 A 0 A

10 A ±1000ppmoftheadjustmentrange

(equivalentto±0.01A:(DMMmeasurement×1000)) 10 mA

30A +30A 0 A —±1000ppmoftheadjustmentrange

(equivalentto±0.03A:(DMMmeasurement×1000)) 100 mA

6/9 IM 2560A-71EN

Thermocouple

Wiring Example

FUNCTION: DCV

DMM

2560A HI

Adjustment

2560A DMM

Adjustment range Output at Each Adjustment Point Adjustable Range Range

+F ±0

Thermocouple(TC) 50mV 0mV ±1000ppmoftheadjustmentrange

(equivalentto±0.1mV) 100mV

Resistance

Wiring Example

FUNCTION: OHMF (4wire)

RANGE: 1 kΩ

2560A DMM

Adjustment

2560A DMM

Adjustment range Output at Each Adjustment Point Adjustable Range Range

+F ±0

Resistance(OHM) 400Ω 1Ω ±500ppmoftheadjustmentrange

(equivalentto±0.2Ω)

1kΩ,excitation

current 1 mA

7/9IM 2560A-71EN

Internal RJC

Wiring Example

Copper wire

Standard temperature device ZC-114A

FUNCTION: DCV

RANGE: 100 mV

DMM

2560A LO

Adjust to 0°C equivalent.

Thermocouple

Type K

Adjustment

• TheinternalRJCisaffectedbytheadjustmentresultsofthethermocoupleadjustmentrange,mentioned

earlier.AdjusttheinternalRJCafteryouhaveadjustedthethermocoupleadjustmentrange.

• Adjusttoavalueequivalentto0°Cbytakingintoaccounttheerrorinthethermocouplethatyouwillbeusing.

• The2560Aoutputdisplayisinunitof°C,buttheoutputterminalsproducethethermoelectromotiveforce

corresponding to the specified temperature.

• Fordetailsonhandlingthestandardtemperaturedevice,followtheinstructionmanualofthedevice.

2560A DMM

Adjustment range Output at Each Adjustment Point

±0 Adjustable Range Range

InternalRJC(RJC) 0°C ±2.00°C 100mV

8/9 IM 2560A-71EN

Communication Commands

CALibrate Group

:CALibrate:ADJust:POINt

Function Setsorqueriestheadjustmentpoint.

Syntax :CALibrate:ADJust:POINt

{PFULL|MFULL|

ZERO}

:CALibrate:ADJust:POINt?

 PFULL:Positiveadjustmentpoint

 MFULL:Negativeadjustmentpoint

 ZERO:0

Example :CALIBRATE:ADJUST:POINT PFULL

:CALIBRATE:ADJUST:POINT? -> PFULL

DescriptionTheselectableparametersvarydependingon

thefunctionsetwiththe:CALibrate:FUNCtion

command as follows.

 VOLTage:{PFULL|MFULL|ZERO}

 CURRent:{PFULL|MFULL|ZERO},exceptthe

MFULLparameterisnotavailableforthe30A

range.

 TCouple:{PFULL|ZERO}

 RESistance:{PFULL|ZERO}

 RJC:{ZERO}

:CALibrate:ADJust:VALue

Function Setsorqueriesthesimpleadjustmentvaluefor

the selected adjustment point.

Syntax :CALibrate:ADJust:VALue <NRf>

:CALibrate:ADJust:VALue?

 • Whenthe:CALibrate:FUNCtioncommand

issetto<Voltage>,<Current>,or

  <NRf>=

1000ppm to 1000ppm

(1ppmresolution)

 • Whenthe:CALibrate:FUNCtioncommandis

setto<Resistance>

  <NRf>=

500ppm to 500ppm

(resolution:1ppm)

 • Whenthe:CALibrate:FUNCtioncommandis

setto<InternalRJC>

  <NRf>=

2.00°Cto2.00°C

(resolution:0.01°C)

Example :CALIBRATE:ADJUST:VALUE 1000

:CALIBRATE:ADJUST:VALUE? -> 1000

Description Theadjustablerangeandresolutionvary

dependingonthe:CALibrate:FUNCtioncommand

setting. If a value outside the adjustable range

isspecified,a“222:Dataoutofrange”errorwill

occur.

:CALibrate:FUNCtion

Function Setsorqueriesthefunction(voltage,current,

resistance,thermocouple,internalRJC)to

perform simple adjustment on.

Syntax :CALibrate:FUNCtion {VOLTage|

CURRent|TCouple|RESistance|RJC}

:CALibrate:FUNCtion?

 VOLTage:Voltage

 CURRent:Current

 TCouple:Thermocouple

 RESistance:Resistance

 RJC:InternalRJC

Example :CALIBRATE:FUNCTION VOLTAGE

:CALIBRATE:FUNCTION? -> VOLTAGE

Description Ifyouchangethefunctionbeforeexecuting

the:CALibrate:WRITecommand,thesimple

adjustment values that you have set will return to

theiroriginalvalues.Besuretowritethesimple

adjustmentvaluesusingthe:CALibrate:WRITe

command before changing the function.

:CALibrate:INITialize

Function Initializesthe2560Asimpleadjustmentvalues.

Syntax :CALibrate:INITialize

Example :CALIBRATE:INITIALIZE

Description Executingthiscommandwillresetallsimple

adjustment values to zero.

:CALibrate:PASSword

Function Entersthepasswordforswitchingtosimple

adjustment mode.

Syntax :CALibrate:PASSword <String>

 <String>:Password

Example :CALIBRATE:PASSWORD "111"

Description Youmustenterapasswordtousethecommands

intheCALibrategroup.Useacharacterstring

tosetthepassword.Toexitsimpleadjustment

mode,enteranemptystring(twoconsecutive

doublequotationmarks).

:CALibrate:RANGe

Function Setsorqueriestheadjustmentrange.

Syntax :CALibrate:RANGe {<Voltage>|<Current>|

<Resistance>}

:CALibrate:RANGe?

 <Voltage>:100mV,1V,10V,100V,1000V

 <Current>:100 uA, 1 mA, 10 mA, 100 mA, 1 A,

10A,30A

 <Resistance>:400OHM

Example :CALIBRATE:RANGE 1V

:CALIBRATE:RANGE?

-> :CALIBRATE:RANGE 1.0E+00

Description • Beforesetting<Voltage>,usethe

:CALibrate:FUNCtioncommandtosetthe

functiontoVOLTage.

Beforesetting<Current>,usethe

:CALibrate:FUNCtioncommandtosetthe

functiontoCURRent.

  Beforesetting<Resistance>,usethe

:CALibrate:FUNCtioncommandtosetthe

functiontoRESistance.

9/9IM 2560A-71EN

Ifyousetrangeofadifferentfunction,a“131:

Invalidsuffix”errorwilloccur.

 • IfthefunctionisTCoupleorRJCandyouset

therange,a“221:Settingconflict”errorwill

occur. 9.91E+37isreturnedasaresponsetoa

query.

 • Ifyouchangetheadjustmentrangebefore

executingthe:CALibrate:WRITecommand,

the simple adjustment values that you have

changed will return to their original values.

Besuretowritethesimpleadjustmentvalues

usingthe:CALibrate:WRITecommandbefore

changing the adjustment range.

:CALibrate:READ?

Function Queriestheoutputvalue.

Syntax :CALibrate:READ?

Example :CALibrate:READ? ->

100 uA range

:CAL:READ 100.000E-06

1 mA range

:CAL:READ 1.00000E-03

10 mA range

:CAL:READ 10.0000E-03

100mV,100mA,andTCrange

:CAL:READ 100.000E-03

1Vor1Arange

:CAL:READ 1.00000E+00

10Vor10Arange

:CAL:READ 10.0000E+00

30Arange

:CAL:READ 30.0000E+00

100Vrange

:CAL:READ 100.000E+00

1000Vrange

:CAL:READ 1.00000E+03

400OHMrange

:CAL:READ 400.00E+00

RJC

:CAL:READ 0.000E+00

WhentheoutputisOFF

:CAL:READ 9.91E+37

:CALibrate:STATe

Function Setsorqueriestheoutputon/offstateforsimple

adjustment.

Syntax :CALibrate:STATe <Boolean>

:CALibrate:STATe?

 ON|1:Enabled

 OFF|0:Disabled

Example :CALIBRATE:STATE ON

:CALIBRATE:STATE?

-> :CALIBRATE:STATE 1

:CALibrate:WRITe

Function Writesthesimpleadjustmentvaluestothe2560A

internal memory.

Syntax :CALibrate:WRITe

Example :CALIBRATE:WRITE

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