Keithley 2100 User Manual

4-10 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
Figure 4-6
Front panel auto-range
To set the range from a remote interface:
Use the following commands from your PC terminal to set the range:
CONFigure:<function> <range>,<resolution>
MEASure:<function>? <range>,<resolution>
SENSe:<function>:RANGe <range>
SENSe:<function>:RANGe:AUTO {OFF|ON}
Rate (integration time)
Definition
Integration time is the period of time the analog-to-digital (A/D) converter takes to sample the input
signal. The integration time feature allows you to optimize either the speed or the resolution, as
well as the noise rejection and accuracy of the measurement. The unit of the integration time is in
PLC (power line cycles); one PLC for 60Hz is 16.67ms, and for 50Hz is 20ms.
The Model 2100 has four different integration times you can select: 0.02 PLC, 0.1 PLC, 1 PLC,
and 10 PLC.
Default
For DCV, DCI, and resistance measurement, the default integration time is 1 PLC. The user
selected value is stored in volatile memory, and the default value will be restored when the meter
is turned-off.
How to set the integration time:
You can set the integration time either through the front panel or the remote interface operation.
To set the integration time from the front panel:
Integration time is set indirectly when you select the measurement resolution. Please refer to
“
Resolution setting (digits)” later in this section for details about how to set resolution or digits.
Table 4-1 shows the relationship between the resolution and the integration time.
To set the resolution for your measurement from a remote interface:
Use the following commands on your PC terminal to set the resolution:
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
FUNCT ION
DCI ACI
4
PERIOD
LIMITS MX+B
dB
EXTRIG
HOLD
MATH
TRIGGER MEMORY
dBm
RANGE
DISPLAY
NEXT
PREV
POWER
OFF
ON
SENSE
F
AUTO
NEXT
PREV

Keithley 2100 Specifications

General

Brand	Keithley
Model	2100
Category	Multimeter
Language	English