Measurement Of Interference Voltage (Ust ); Measurement Of Interference Frequency (Fst ) - Fluke 1625 User Manual

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measurement
Measurement of Interference Voltage (U
Fullwave rectification for DC and AC (DC without operational sign, AC signal
sinus calibrated for r.m.s. values). If limit values are exceeded no measurement
will be started.
Measurement of Interference Frequency (F
For interference voltage >1 V its frequency is derived from the period time.
8
Switching
Current
Voltage
measurement
ADC
Processor
Comp
Relais
driver
Figure 2. Description of Functions
Undervoltage
Source
detection
LCD
Display
driver
Rotary selector
switch buttons
)
ST
ST
Supply
voltage
edw003.eps
)