Keithley 2100 User Manual

4-8 Return to Section Topics 2100-900-01 Rev. D / September 2011
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual
measurements. This feature is only available for DC voltage measurements and is not applicable
to other measurement functions.
Default
The default input resistance for all measurements is 10M (refer to Table 2-2). The DC input
resistance can only be changed for measurements with 100mV, 1V, or 10V range. For 100V DCV,
1000V DCV, and other measurement functions, the input resistance is fixed at 10M and cannot
be changed. Also note that the user-selected value is stored in volatile memory. The default
setting will be restored after the meter has been turned off.
How to set the DC input resistance
You can set the DC input resistance either through the front panel or through a remote interface.
To set the DC input resistance from the front panel:
1. Press CONFIG + DCV.
2. Use the PREV and NEXT keys to locate the INPUT R option, then press ENTER to select it.
3. Select the desired value for the input resistance by pressing the PREV and NEXT keys,
then press ENTER. Two values are available: 10M or > 10G . The locations of these
keys are shown in Figure 4-4.
Figure 4-4
Front panel DCV
To set the DC input resistance from a remote interface:
The automatic input resistance mode can be enabled or disabled. When the automatic input
resistance mode is set to AUTO OFF (default), the input resistance is fixed at 10M for all ranges.
When set to AUTO ON, the input resistance is set to >10G for the three lowest DC voltage
ranges (100mV, 1V, and 10V). Use the following command from your PC terminal to disable the
auto input DC resistance setting (the result is a fixed input DC resistance at 10M for all
measurements):
INPut:IMPedance:AUTO {OFF | ON}
Threshold resistance (continuity)
Definition
When testing continuity, the multimeter will make a beeping sound when the measured resistance
is less than the threshold resistance. The threshold resistance can be set to any value between
1 and 1000 .
FILTER
NEXT
PREV
DIGITS
RATIO
%
MIN/MAX
NULL
ESC
ENTER
AUTO
SINGLE
TRIGGER
STORE
RECALL
LOCAL
SHIFT
CONFIG
MENU
AUT O
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
NEXT
PREV
ENTER
DCV
CONFIG

Keithley 2100 Specifications

General

Brand	Keithley
Model	2100
Category	Multimeter
Language	English