Fluke 80 Series V User Manual page 22

80 Series V
Users Manual
When measuring voltage, the Meter acts approximately
like a 10 M (10,000,000 ) impedance in parallel with
the circuit. This loading effect can cause measurement
errors in high-impedance circuits. In most cases, the error
is negligible (0.1% or less) if the circuit impedance is
10 k (10,000 ) or less.
For better accuracy when measuring the dc offset of an ac
voltage, measure the ac voltage first. Note the ac voltage
range, then manually select a dc voltage range equal to or
higher than the ac range. This procedure improves the
accuracy of the dc measurement by ensuring that the
input protection circuits are not activated.
14
AC Voltage
87 V TRUE RMS MULTIMETER
˚ C/ ˚ F
MIN MAX RANGE AutoHOLD
Peak MIN MAX
REL Hz %
4½ DIGITS
1 Second
mV
mA
A
V
A
V
LO LO
V
OFF
A mA A COM V
400mA
10A MAX FUSED
FUSED
DC Voltage
87 V TRUE RMS MULTIMETER
mV C/ F
˚ ˚
MIN MAX RANGE AutoHOLD
Peak MIN MAX
REL Hz %
4½ DIGITS
1 Second
mV
mA
A
V V
A
LO LO V
OFF
A mA A COM
V
400mA
FUSED
10A MAX
FUSED
Figure 2. Measuring AC and DC Voltage
Switch Box
+
aom2f.eps