Keithley 2001 User Manual

Front Panel Operation
3-31
SPEED
The SPEED parameter sets the integration time of the A/D
converter, the period of time the input signal is measured (al-
so known as aperture). It is discussed in paragraph 3.4.1, DC
and AC voltage. Only the differences for DC and AC current
are noted here.
The SET-BY-RSLN parameter optimizes the integration
time for the present resolution setting. The defaults for set-
by-resolution integration times of DCI and ACI are listed in
Table 3-13.
Table 3-12
CONFIGURE ACI menu structure
Menu item Description
SPEED
NORMAL
FAST
MEDIUM
HIACCURACY
SET-SPEED-EXACTLY
SET-BY-RSLN
Measurement speed (integration time) menu:
Select 1 PLC (power line cycle, 16.67msec for 60Hz, 20msec for 50Hz and 400Hz).
Select 0.01 PLC.
Select 0.1 PLC.
Select 10 PLC.
Set integration time in PLC (0.01-10).
Default to setting appropriate for resolution.
FILTER
AUTO
AVERAGING
ADVANCED
AVERAGING-MODE
Digital filter menu:
Default to filter appropriate for integration time.
Program a simple average filter (1-100 readings).
Program a simple average filter (1-100 readings) with a noise tolerance window
(0-100% of range).
Select moving average or repeating average mode.
RESOLUTION
AUTO
3.5d, 4.5d, 5.5d, 6.5d, 7.5d
Display resolution menu:
Default to resolution appropriate for integration time.
Select a specific resolution.
COUPLING
AC
AC+DC
Coupling menu:
Select AC coupled measurements.
Select DC coupled measurements.
AC-TYPE
RMS
AVERAGE
Type of ACI measurement menu:
Select true RMS ACI.
Select average ACI.
Table 3-13
DCI and ACI integration time set-by-resolution
Measurement
function and type Resolution Integration time
DC current 3.5d, 4.5d
5.5d
6.5d
7.5d
0.01 PLC
0.02 PLC
0.20 PLC
2.00 PLC
DC in-circuit current 3.5d to 7.5d Not used
RMS, average 3.5d, 4.5d
5.5d
6.5d, 7.5d
0.01 PLC
0.02 PLC
10.00 PLC
Notes:
1. For normal DC current, if the integration time is SET-BY-RSLN
and the resolution is AUTO, the integration time will be 1.0 PLC
and the resolution 6.5 digits.
2. For DC in-circuit current, the integration time setting is ignored.
3. For AC current, if the integration time is SET-BY-RSLN and the
resolution is AUTO, the integration time will be 1.0 PLC and the
resolution 5.5 digits.

Keithley 2001 Specifications

General

Brand	Keithley
Model	2001
Category	Multimeter
Language	English