User manual

DMM4020
Users Manual
3-10
The Meter selects the appropriate range in the autorange mode. The function and
measurement are displayed.
HI
LO
1000V
750V
2W/4W
MAX
INPUT SENSE
HI
LO
4 W
10 A
mA
200mA
MAX
10 A
MAX
1000V CAT I
600 V CAT II
500 V pk
V
1V
300V
Circuit
Under
Test
eue10.eps
Figure 3-4. Voltage and Frequency Measurement
Measuring Frequency
The Meter measures the frequency of ac signals between 20 Hz and 1 MHz.
To perform a frequency measurement:
1. Connect test leads between the Meter and the circuit under test as shown in
Figure 3-4.
2. Press F to measure the frequency of the ac signal.
The function and measurement are displayed.
Frequency Ranging
Frequency measurements are automatically ranged so that a frequency measurement is
always displayed with maximum resolution.
To select a range manually, press F to select the frequency function, and then press
U or V to select a range manually. Manual ranging can be performed on readings
displayed in the primary display only.
If you manually select a frequency range and the measurement exceeds the full-scale
value of that range, 0L is displayed to indicate an overload. Refer to the “Electrical
Specifications” section in Chapter 1 for frequency ranges and full-scale values.
Measuring Resistance
The Meter offers 2-wire and 4-wire ohms measurement. Press O to toggle between 2-
wire and 4-wire measurement modes. The Meter displays 2*4 Wire at 2 wire or 2x4 wire
resistance measurement and displays 4 Wire at 4 wire resistance measurement.