Keithley 2001 User Manual

Front Panel Operation
3-68
For this example, the Models 2001 and 7001 are configured
as follows:
Model 2001:
Idle State:
Bench reset = :INIT:CONT ON*
Arm layer:
Arm source = Immediate*
Arm count = 1*
Arm trigger control = Acceptor*
Scan layer:
Scan source = Immediate*
Scan count = Infinite*
Scan trigger control = Acceptor*
Measure layer:
Measure source = External
Measure count = Infinite*
Measure trigger control = Acceptor*
* Indicates that the setting is the BENCH RESET (and factory) default
condition.
Model 7001:
Idle State:
Reset = :INIT:CONT OFF*
Scan List = 1!1-1!10,
Arm layer:
Arm spacing = Immediate*
Arm count = 1*
Arm trigger control = Acceptor*
Figure 3-27
External trigger connectors
Channel
Ready
External
Trigger
7001 Switch System
7051-2
BNC to BNC
Cables (2)
External
Trigger
Input
Meter
Complete
Output
2001 Multimeter
Scan layer:
Scan spacing = Immediate*
Number of scans = 1
Scan trigger control = Acceptor*
Channel Layer:
Channel spacing = External
Number of channels = Use Scanlist length*
Channel trigger control = Source*
* Indicates that the setting is the RESET (and factory) default condition.
Notice that the Model 2001 is reset to BENCH defaults. With
this selection, the multimeter stays armed. Since the arm
source and scan source are set to Immediate, the Model 2001
waits in the measure layer for a trigger.
With the Channel Trigger Control of the Model 7001 set for
Source, scan operation initially bypasses the need for an ex-
ternal trigger to close the first channel. Since arm spacing
and scan spacing are set to Immediate, the scan starts as soon
as the scanner is taken out of the idle state by pressing the
STEP key. When the front panel STEP key is pressed:
• The scanner arms and closes the first channel.
• After Channel 1!1 settles, a trigger is sent from Channel
Ready of the Model 7001 to External Trigger Input of
the Model 2001 to trigger a measurement of DUT #1.
• After the Model 2001 completes the measurement, it
outputs a trigger from Meter Complete Output to Exter-
nal Trigger of the Model 7001, which closes the next
channel.
• After Channel 1!2 settles, a trigger is sent to the Model
2001 to trigger a measurement of DUT #2.
This process continues until all ten channels are scanned and
measured.

Keithley 2001 Specifications

General

Model	2001
Category	Multimeter
Manufacturer	Keithley
Type	Digital Multimeter
Digits of Resolution	7.5
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Frequency Range	3 Hz to 500 kHz
Connectivity	GPIB, RS-232
Display	VFD
Resistance Accuracy	0.008% + 2.0 mΩ
Frequency Accuracy	±0.01%
DC Current Range	10 μA to 3 A
AC Current Range	10 μA to 3 A
Power Supply	100 V to 240 V AC, 45 Hz to 66 Hz