Fluke 45 User Manual page 50

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