8845A/8846A
Users Manual
4-10
2
INPUT SENSE
HI
LO
FRONT
REAR
10 A
1V
00
mA
4
W
HI
LO
2W/4W
V
300V
FUSED
1000 V CAT I
600V CAT II
4
Ground tab
caw060.eps
Figure 4-3. Input Connections for 4-wire Ohms Using 2x4 Wire Leads
Function modifiers:
D FLTR A filter for quieting noisy measurments. This filter averages readings
to reduce reading noise when in immedicate trigger mode or when in
trigger mode with an unending number of triggers selected. The filter
is only available for dc functions at rates slower than 1 PLC. The
number of readings averaged by the digital filter varies with dc
function and range.
A FLTR A 3-pole analog filter for improving noise immunity. The filter is
active when this soft key’s label is highlighted.
Refer to the “Range Keys” section in Chapter 3 of this manual for information on how to
adjust the measurement range.
Measuring Current
The Meter is capable of making both ac and dc current measurements up to 10 A. Two
separate input connectors, in conjunction with the LO connector, are used for current
measurements. For best resolution, current measurements not exceeding 400 mA should
be made using the LO and mA input connectors as shown in Figure 4-4.
W Caution
To avoid blowing the current input fuse or possibly damaging
the Meter:
• Current measurements between 400 mA and 10 A should be
measured using only the 10 A and LO input connectors.
• BEFORE applying power to the circuit to be measured,
ensure the test leads are correctly connected to the Meter
inputs appropriate for the expected current.
• Exceeding 440 mA on the 400 mA input connector or
exceeding 11 A on the 10 Amp connector will blow the
internal fuse.
To Next Page
Loading...
