Keithley 2601 Reference Manual page 497

Keithley Instruments, Inc.
28775 Aurora Road
Cleveland, Ohio 44139
1-888-KEITHLEY
www.keithley.com
Reading Buffers:
Non-volatile storage area(s) reserved for measurement data. Reading buffers are arrays of measurement elements.
Each element can hold the following items:
• Measurement
• Measurement status
• Timestamp
Two reading buffers are reserved for each SourceMeter channel. Reading buffers can be filled using the front
panel STORE key, and retrieved using the RECALL key or host interface.
Buffer Size, with timestamp and source setting: >50,000 samples.
Buffer Size, without timestamp and source setting: >100,000 samples.
Battery Backup: Lithium-ion battery backup; 30 days of non-volatile storage. Typical battery life is 1 year.
Factory TSP Scripts:
See www.keithley.com for Keithley-supported application-specific scripts.
System Expansion:
The TSP-Link expansion interface allows TSP-enabled instruments to trigger and communicate with each other.
See figure below:
Each SourceMeter has two TSP-Link connectors to facilitate chaining instruments together.
• Once SourceMeter instruments are interconnected via TSP-Link, a computer can access all of the resources of
each SourceMeter via the host interface of any SourceMeter.
• A maximum of 16 TSP-Link nodes can be interconnected. Each SourceMeter consumes one TSP-Link node.
TIMER:
Free-running 47-bit counter with 1MHz clock input. Reset each time instrument powers up. Rolls over every 4
years.
Timestamp: TIMER value automatically saved when each measurement is triggered.
Resolution: 1 s.
Accuracy: 100ppm.
Specifications are subject to change without notice.
SPEC-2600S Rev. B / September 2007
System SourceMeter
• Source setting (at the time the measurement was taken)
• Range information
Series 2600
®
Specifications
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