Fluke 125 User Manual page 100

Fluke 125
Users Manual
Amperes (AMP) ..................................with current clamp
Ranges ......... same as VDC, VAC, VAC+DC, or PEAK
Scale Factors ..0.1 mV/A, 1 mV/A, 10 mV/A, 100 mV/A,
Accuracy ....... same as VDC, VAC, VAC+DC, or PEAK
(add current clamp uncertainty)
Temperature (TEMP).... with optional temperature probe
Range ........................................200 °C/div (200 °F/div)
Scale Factor................................ 1 mV/°C and 1 mV/°F
Accuracy ............as VDC (add temp. probe uncertainty)
Decibel (dB)
0 dBV ........................................................................ 1V
0 dBm (600Ω /50Ω).............................................. 1 mW
dB on ...................................... VDC, VAC, or VAC+DC
Full Scale Reading..................................... 1000 counts
Crest Factor (CREST)
Range .................................................................1 to 10
Accuracy ............................................... ±(5% +1 count)
Full Scale Reading....................................... 100 counts
Phase
Modes ...................................................... A to B, B to A
Range .................................................0 to 359 degrees
Accuracy up to 1 MHz....................................2 degrees
Accuracy 1 MHz to 5 MHz .............................5 degrees
Resolution ....................................................... 1 degree
10-6
400 mV/A, 1 V/A, 10 mV/mA
referenced to 600Ω or 50Ω
Power
Configurations ...................................................1 phase
.......................... 3 phase 3 conductor balanced loads
(3 phase: fundamental component only,
Power Factor (PF) ............. ratio between Watts and VA
Range...................................................... 0.00 to 1.00
Watt.....................................RMS reading of multiplying
corresponding samples of input A (volts)
Full Scale reading......................................999 counts
VA .............................................................Vrms x Arms
Full Scale Reading ....................................999 counts
VA Reactive (VAR).....................................
Full Scale Reading ....................................999 counts
Vpwm
Purpose.............. to measure on pulse width modulated
signals, like motor drive inverter outputs
Principle ...... readings show the effective voltage based
on the average value of samples over a
whole number of periods of the fundamental
Accuracy ......................... as Vrms for sinewave signals
AUTOSET mode only)
and input B (amperes)
2 2
((VA) -W )
√
frequency