FLIR TA72 - Operation; DMM Reading Multipliers and Measurement Examples

FLIRTA72_TA74USERMANUALDocumentIdentifier:TA72_TA74en‐US_AC
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5.3.2DMMReadingMultiplierTable
TheTablebelowusesFLIRDM93andCM83DMMsasexamples;However,moststandard
DMMssettotheACVoltagemodewillrespondsimilarly.
Note:DonotsettheDMMtoVFDmodewhentesting.

TA7x
Range
1

CurrentMeasured
byTA7x
inAmperes(A)
DMMDisplayedReadings
Multiplier
2

FLIRDM93
VACmode
FLIRCM83
VACmode
30A
5.0 0.500 0.50
Current=10xLCD
reading
15.0 1.500 1.50
25.0 2.500 2.50
300A
55.0 0.550 0.55
Current=100x
LCDreading
150.0 1.500 1.50
250.0 2.500 2.50
3000A
500.0 0.500 0.50
Current=1000x
LCDreading
1500A 1.500 1.50
2500A 2.500 2.50
1RangeisdeterminedbythelitLEDlampontheTA7x
2Multiplierusedtodeterminecurrentmeasured,basedonDMMreading(withDMMinACVmode)
5.3.3MeasurementExamples
Example1:30ACurrentMeasurement
WiththeDMMsettotheACvoltagemode:
 Clampsettothe30Arange:theclampoutputwillbe3000mV(3.0VAC)
DMMwilldisplay3.000intheVACmode(x10=30A)
 Clampsettothe300Arange:theclampoutput
willbe300mV(0.3VAC)
DMMwilldisplay0.300intheVACmode(x100=30A)
Example2:60ACurrentMeasurement
WiththeDMMsettotheACVoltagemode:
 Clampsettothe300Arange:theclampoutputwillbe600mV(0.6VAC);
DMMwilldisplay0.600inthe
VACmode(x100=60A)
 Clampsettothe3000Arange:theclampoutputwillbe60mV(0.06VAC)
DMMwilldisplay0.060intheVACmode(x1000=60A)
Example3:600ACurrentMeasurement
WiththeDMMsettotheACVoltagemode:
Clampsettothe300Arange:theclampoutputwillreach4500mV(4.5VAC);thisisan
overrange(overload)condition.Selectthehigher3000Arange:theclampoutputwill
be600mV(0.6VAC);DMMwilldisplay0.600intheVACmode(x1000=600A)