Keithley 2002 User Manual

Front Panel Operation
2-30
SPEED
The SPEED parameter sets the integration time of the A/D
converter, the period of time the input signal is measured
(also known as aperture). It is discussed in paragraph 2.4.1,
DC and AC voltage. Only the differences for 2-wire and 4-
wire resistance are noted here.
SET-BY-RSLN: This parameter optimizes the integration
time for the present resolution setting. The defaults for set-
by-resolution integration times of Ω2 and Ω4 are listed in
Table 2-18.
Table 2-18
Ω 2 and Ω 4 integration time set-by-resolution
Resolution Integration time
3.5d, 4.5d
5.5d
6.5d
7.5d
8.5d
0.01 PLC
0.02 PLC
0.10 PLC
1.00 PLC
10.00 PLC
Note: If the integration time is SET-BY-RSLN and
the resolution AUTO, the integration time will be 1.0
PLC and the resolution 7.5 digits.
FILTER
FILTER lets you set the digital filter response. The filter
menu is available from the function configuration menus (i.e.
CONFIGURE OHMS-2W) or by pressing CONFIGURE
FILTER with the desired function already selected. All of the
parameters (menu items) for FILTER are explained in para-
graph 2.9. Since the AUTO parameter has specific effects on
Ω2 and Ω4, it is covered here.
AUTO: This parameter for a digital filter optimizes its use
for the present measurement function. The defaults for auto-
matic filtering of Ω2 and Ω4 are listed in Table 2-19.
RESOLUTION
The RESOLUTION parameter sets the display resolution. It
is discussed in paragraph 2.4.1, DC and AC voltage. Only the
differences for Ω2 and Ω4 are noted here.
Note that all scientific notation displays are 7-1/2 digits.
Labels on the far right, such as channel number, may be
omitted to provide the desired precision.
Table 2-19
Ω 2 and Ω 4 auto filter
Measurement
function State Type Rdg.
Noise
tolerance
Avg.
Mode
2-wire resistance
4-wire resistance
On
On
Advanced
Advanced
10
10
1.0%
1.0%
Moving
Moving

Keithley 2002 Specifications

General

Resolution	8.5 digits
DC Voltage Accuracy	±0.0006%
Maximum DC Voltage	1000 V
Maximum AC Voltage	750 V
Maximum DC Current	3 A
Maximum AC Current	3 A
Connectivity	GPIB, RS-232
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Resistance Range	10 Ω to 1 GΩ
Model	2002
Category	Multimeter
Interface	GPIB, RS-232
AC Current Accuracy	±0.1%
Frequency Range	0.1Hz to 300kHz
Display	VFD
Type	Digital
Power Supply	100-240V AC, 50/60Hz
Current Range (DC)	100 μA to 3 A
Current Accuracy (DC)	±0.01%
Current Range (AC)	100 μA to 3 A
Current Accuracy (AC)	±0.1%
DC Current Range	100 μA to 3 A
AC Current Range	100 μA to 3 A