Fluke 1744 - Manual (Page 61)

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Users Manual
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General Specifications
RMS Logging Slow Voltage Variations
Logging values: Mean value RMS values averaged over interval length
Min, Max values Averaging with selectable averaging time from
0.5 periods to 5 s
Max value Max 10 ms RMS value per interval
Min value: Min 10 ms RMS value per interval
Current Logging Values
Mean value RMS values averaged over interval length
Max value Highest RMS value per interval
Events Dips, Swells, Interruptions
Limit value Variable
Lower limit: 0 to 95% V
N
Upper limit: 105 to 120% V
N
Set in PQ Log
Range 0 to V
I
+ 20%
Logging value ½ period RMS value
Operating uncertainty < 2% of V
I
Response time ½ line power period
Flicker
Logging value Flicker severity (Pst / Plt) according to
IEC 61000-4-15
Intrinsic uncertainty Pst < 5% of m. v
Measuring range Pst 0.4 to 4