YOKOGAWA WT333E - Page 100

8-8
IM WT310E-01EN
Rated Integration Time
In the D/A output of integrated values, this instrument assumes the integrated value that would be
obtained if a rated value (same value as the measurement range) is continuously received over the
specifieddurationtobe100%andassignsthisvalueto5V.
The default setting is 1.00.00 (1 h, 00 min, 00 s).
• Range:0.00.00(00h,00min,00s)to10000.00.00(10000h,00min,00s)
Ifyousettheratedintegrationtimeto0.00.00,theD/Aoutputvaluewillbe0V.
FortherelationshipbetweenmeasuredintegratedD/Aoutputandvoltage,see“Relationshipbetween
OutputItemsandD/AOutputVoltage.”
Note
• WhentheMAXholdfeature(seesection4.6)isenabled,themaximumheldvalues(MAXvalues)forthe
following items are displayed. The maximum held values (MAX values) are also output in D/A output.
Voltage,current,activepower,apparentpower,peakvoltage,peakcurrent
• D/Aoutputisperformedforeachoutputitemwith100%(5V)representingtheapplicationoftherated
range value for voltage, current, and power.
• IfascalingcoefficientsuchasaVTratio,CTratio,orpowercoefficientisappliedtoavoltage,current,
orpowervalueandscalingisenabled,thisinstrumentproduces100%D/Aoutput(5V)whenthescaled
measured value is the same as the scaled rated value (measurement range × scaling factor).
• Eveniftheelementshavedifferentscalingconstants,whenyousettheelementtoΣ,thisinstrument
produces100%D/Aoutput(5V)whenscaledratedvaluesareappliedtotheelements.
• TheD/Aoutputforallmathfunctionsexceptforthoseindicatedbelowis0V.
Efficiency, average active power during integration
D/A Output Range Mode (Range Mode)
You can select the D/A output range mode from the following options. The default setting is Fixed.
You can set this feature by sending communication commands through the communication
interface. You cannot set this feature from the display menu of this instrument. For details, see the
Communication Interface User’s Manual, IM WT310E-17EN.
Fixed (Fixed range mode)
 Whenameasurementfunction’sratedvalueisreceived,+5Visoutput.Fordetails,see“Relationship
betweenOutputItemsandtheD/AOutputVoltage”onpage8-10.
Manual (Manual range mode)
 YoucansetwhichmeasurementfunctionvaluesresultinaD/Aoutputof-5V,andwhichresult
inaD/Aoutputof+5V.Bydoingso,youcanenlargeorreduce(zoom)theD/Aoutputofeach
channel.Forexample,ifyouaremeasuringacurrentthatfluctuatesbetween0.6Aand0.8Awith
a measurement range of 1 A, when the D/A output range mode is Fixed, the D/A output voltage will
fluctuatebetween3.0Vand4.0V.Whenyouwanttoobservethefluctuationsmoreclosely,youcan
use the D/A zoom feature. If you set the D/A output range mode to Manual and set the minimum
valueto0.6andthemaximumvalueto0.8,thisinstrumentwillproduce–5Vwhenthemeasured
currentvalueis0.6Aand+5Vwhenthemeasuredcurrentvalueis0.8A.
8.4 Configuring D/A Output Items (Option)