Fluke 43B Application Guide

Fluke 43B
Applications Manual
32
Measuring Current Harmonics
Check whether the lighting system causes excessive harmonics. These may
influence the system.
1
Open the main menu.
2
3
Select AMPS.
4
Make connections as shown below. Turn all lights on.
 Look at the harmonics spectrum and read the THD value. If the current
THD is less than 20%, the harmonic distortion is probably acceptable.
Consider replacing lights with a better quality (which produces less
harmonics) or install a harmonic filter to avoid the injection of harmonics
into the system.
 HARMONICS


Fluke 43B Specifications

General

Category	Power Quality Analyzer
Interface	RS-232
Volts AC/DC	Yes
Ohms	Yes
Continuity	Yes
Diode Test	Yes
Capacitance	Yes
Harmonics Measurement	Up to 51st harmonic
Display	LCD
Battery Life	Approximately 6 hours
Weight	1.1 kg (2.4 lb)
Data Storage	Yes
Amps AC/DC	0.1 to 1000 A (with clamp)
Power Measurement	W, VA, VAR, PF
Dimensions	50 mm
Current Measurement Range	Via current clamp accessories (not built-in)