Fluke 45 - Manual (Page 50)

Applications
Using the Dual Display
4
4-3
Table 4-1. Sample Dual Display Applications
Primary Display Secondary Display Applications
Volts DC Volts AC
•
Monitor dc level and ac ripple of power supply
Troubleshoot amplifier circuits
Volts DC Current DC
•
Check power supply load regulation
•
Monitor UUT current draw and circuit voltages
•
Monitor loop current and voltage drop across
transmitter
Volts DC Current AC
•
Line and load regulation tests
•
dc/ac or ac/dc converters
Volts AC Current DC
•
Line and load regulation tests
•
dc/ac or ac/dc converters
Volts AC Current AC
•
Line and load regulation tests
•
Transformer (magnetic circuit) saturation
Volts AC Frequency
•
Measure ac amplitude and frequency for line
voltage and ac signal analysis
•
Measure frequency response of an amplifier
•
Adjust ac motor control
•
Read noise in telecommunication applications
•
Adjust portable power generator to optimize
power output
•
Set frequency compensation for a network
dB (in Volts dc) Frequency
•
Use in "print-only" mode (see "RS-232 Print-
Only Mode" in Chapter 5) for quick Bode plots
(frequency vs. amplitude)
•
Test frequency response
Current DC Current AC
•
Measure ripple and dc current draw of switching
power supply
•
Measure current dissipation in protective fuse
resistors used in power supplies
•
Measure ripple and noise on a line
MN MX Actual Value
•
Show the minimum or maximum value recorded
and the present measurement
REL Actual Value
•
Show actual measurement and the difference
between this value and the relative base.
REL Resistance
•
Select and sort resistors. (See also "Using the
Compare Function" in Chapter 3.)
HOLD Actual Value
•
Show actual measurement while holding a
previous, stable measurement on the primary
display