3-4 Return to Section Topics 2100-900-01 Rev. D / September 2011
Section 3: Basic Measurement Functions Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual
Figure 3-4
Model 2100 current measurement (front panel)
NOTE Follow the same procedure when using either the front or rear panel terminals (refer to
Figure 3-5).
Figure 3-5
Model 2100 current measurement
Resistance measurements (2- and 4-wire)
The ranges for resistance measurement are 100 , 1K , 10k , 100k , 1M , 10M , and
100M , with a sensitivity of 100
(on 100 range). There are two modes for measuring the
resistance:
2-wire mode (refer to Figure 3-6) and 4-wire mode (refer to Figure 3-7). In 4-wire mode, the test
current is sourced to the test resistance through one pair of test leads, and the test voltage across
the resistance under test is measured from another set of test leads. As a result, the 4-wire mode
is more accurate for low resistance measurements. The disadvantage of this is the longer settling
time for 4-wire mode.
Figures 3-8 and 3-9 show the input terminal connections on the rear panel
for 2-wire mode and 4-wire mode respectively.
FILTER
NEXT
PREV
DIGITS
RATIO
%
MIN/MAX
NULL
ESC
ENTER
AUTO
SINGLE
TRIGGER
STORE
RECALL
LOCAL
SHIFT
CONFIG
MENU
AUTO
DCV
ACV
22
FREQ
CONT
TEMP
4 WIRE
RATIO
V
INPUT
PEAK
200V
PEAK
HI
LO
PEAK
500V
3A
RMS
INPUTS
3A 250V
FRONT/REAR
AMPS
R
1000V
REF
CAT 1000V
CAT 600V
LOCK
SETUP
ACV
22
FUNCTION
DCI ACI
4
PERIOD
LIMITS MX+B
dB
EXTRIG
HOLD
MATH
TRIGGER MEMORY
dBm
RANGE
DISPLAY
NEXT
PREV
POWER
OFF
ON
SENSE
F
5
6
Current
source
(Warning: Maximum input = 3A DC or RMS)
CM
CAT 1000V
CAT 600V
LINE
120V120V
240V240V
24
0V2
4
0V
*T w0 00 01 00 0*
MADE IN
TA IW A N
NO INTERNAL SERVICEAB LE PARTS, SERVICE
WARNING
BY QUAL IFIED PERSONNEL ONLY.
FOR CONTINUED PROTECTION AGAINST FIRE HAZA RD.
CAUTION:
REPLACEFUSEWITHSAMETYPEANDRATING.
CM = Current measurement
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