YOKOGAWA GX20

9
All Rights Reserved. Copyright © 2014, Yokogawa Electric Corporation
GS 04L53B01-01EN May. 19, 2017-00
• Commonmodevoltageformeasuringinput:
30VACrms(50/60Hz)or±60VDC(Maximum
commonmodenoisevoltageformeasuring
input:250VACrms)
 High-speeduniversaltype
 300VACrme(50/60Hz),Reinforcedinsulation
• Maximumvoltagebetweenmeasuringinput
channels:30VACrms(50/60Hz)or±60VDC
(Maximumcommonmodenoisevoltagebetween
measuringinputchannels:250VACrms(60V
ACrmsforlow-voltagerelaytype))
 High-speeduniversaltype
 300VACrme(50/60Hz),Reinforcedinsulation
• Referencejunctioncompensationaccuracy:
 Whenmeasuringtemperaturegreaterthanor
equalto0°CandwhenIntegraltime16.6ms
ormoreorscaninterval50msormore(for
thehigh-speeduniversaltype)andwheninput
terminaltemperatureisbalanced
 TypeK,E,J,T,N,XKGOST:±0.5°C(23°C±2
°C),±0.7°C(0to50°C),±1.0°C(-20to60°C)
 TypeR,S,W,L,U,W97Re3-W75Re25,
Platinel2,NiNiMo,W/WRe26,N(AWG14):±1.0
°C(23°C±2°C),±1.4°C(0to50°C),±2.0°C
(-20to60°C)
 TypeKpvsAu7Fe:±1.0K(23°C±2°C),±1.4K
(0to50°C),±2.0K(-20to60°C)
 TypeB,PR20-40:Internalreference
compensationisxedto0°C
• Scaninterval/A/Dintegrationtime:
 10ch.mode,6chmode
*3
Universal
*1
/Current(mA)input
*1
/4-wireRTD/
resistance type
Scan interval Integration time
100ms/200ms 1.67ms
500msormore 16.67ms/20ms
1 s 36.67ms
2sormore 100ms
Electromagneticrelayscannertype
Scan interval Integration time
1sormore 16.67ms/20ms
2 s 36.67ms
5 s 100ms
Lowwithstandvoltagerelaytype
Scan interval Integration time
500msormore 16.67ms/20ms
2 s 36.67ms
5 s 100ms
 2ch.mode
*2
Scan interval Integration time
100msormore 16.67ms/20ms
1 s 36.67ms
2sormore 100ms
*1 In10chmode,whenthescanintervalissetto100
msor200ms,theA/Dintegrationtimeisxedat
1.67ms.Thispreventspowerfrequencynoise
frombeingeliminated,causingmeasuredvalues
to wobble.
*2 Cannotbespeciedfortheelectromagneticrelay
type,Lowwithstandvoltagerelaytype,High-
speeduniversaltype.
*3 Forthe4-wireRTD/resistancetype.
• Scaninterval/ltertype:
 High-speeduniversaltype
Scan interval Filter
20msorless Non*
50ms/100ms/200ms 50 Hz/60 Hz
Simultaneousremovalof50Hz
and 60 Hz
500msormore 50 Hz/60 Hz/10 Hz
* Withthehigh-speeduniversaltype,whenthe
scanintervalis20msorless,supplyfrequency
noiseisnotremoved.Assuch,themeasured
valuesmayuctuateespeciallyintemperature
measurementusingthermocouples.
• Calibrationcorrection:
Mode:LinearizerApproximation,LinearizerBias
Numberofcorrectingpoints:12
• Movingaveragefunction:
CanbeswitchedOn/Off(Settableforeach
channel)
 Movingaveragenumbercanbeselectedfrom2
to100times
 Selectfrom2to500forthehigh-speeduniversal
type.
• First-orderlaginputlter(high-speeduniversal
type):Canbeturnedon/offforeachchannel
Timeconstant:Scaninterval×NwhereNis
between3and300)
• Referencejunctioncompensation:
Mode: Can be switch internal or external
(Settableforeachchannel)
(Setthevalueofthecompensationtemperature
atexternal)
• Inputcalculation:
Linearscaling,squareroot*,differential
calculations(Settableforeachchannel)
* Notavailableforthe4-wireRTD/resistancetype
• Biasfunction:
Canbesetthebiasvaluetobeaddedtothe
inputvalue(Settableforeachchannel)
•
Terminaltype:M3screwterminalorClampterminal