Fluke Portable Multimedia Player 8842a User Manual
4-1
Chapter 4
Measurement Tutorial
Title
Page
4-1.
4-2.
DC VOLTAGE MEASUREMENT ..................................................... 4-2
4-3.
Circuit Loading Error ....................................................................... 4-2
4-4.
Input Bias Current Error................................................................... 4-3
4-5.
RESISTANCE MEASUREMENT ...................................................... 4-4
4-6.
4-7.
Correcting for Test Lead Resistance in 2-Wire Ohms ..................... 4-5
4-8.
4-9.
Applications of the Ohms Functions................................................ 4-7
4-10.
4-11.
TESTING ELECTROLYTIC CAPACITORS ............................ 4-7
4-12.
A PRECISION CURRENT SOURCE......................................... 4-8
4-13.
DC CURRENT MEASUREMENT ..................................................... 4-8
4-14.
REDUCING THERMAL VOLTAGES ............................................... 4-9
4-15.
AC VOLTAGE AND CURRENT MEASUREMENT ........................ 4-10
4-16.
True RMS Measurement .................................................................. 4-10
4-17.
Waveform Comparison .................................................................... 4-10
4-18.
Crest Factor ...................................................................................... 4-12
4-19.
AC-Coupled AC Measurements ...................................................... 4-12
4-20.
Combined AC and DC Measurements ............................................. 4-13
4-21.
Bandwidth ........................................................................................ 4-13
4-22.
Zero-Input VAC Error...................................................................... 4-13
4-23.
MAKING ACCURATE MEASUREMENTS ON THE 20 mV
AND 20
AND 20
Ω
4-24.
MAKING ACCURATE HIGH-RESISTANCE MEASUREMENTS . 4-15