Frequency Ranging; Measuring Resistance; 2-Wire Resistance Measurement - Fluke 8808A User Manual

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.

2-Wire Resistance Measurement

To perform a 2-wire resistance measurement:
1. Connect test leads between the Meter and the circuit under test as shown in
Figure 3-5.
2. If required, press O to select 2-wire resistance measurement mode. 2*4 Wire is
displayed.
The function and measurement are displayed.
Figure 3-5. 2-Wire Resistance Measurement
Operating the Meter from the Front Panel
Selecting a Measurement Function
INPUT
V
2W/4W
HI
1000 V
1000V
MAX
600 V
750V
1V
LO
500 V pk
200 mA
MAX 10 A
MAX
mA
3
SENSE
4 W
HI
CAT I
300V
CAT II
LO
10A
eue11.eps
3-11